diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 00000000..8f22fa3d --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1 @@ +custom: ["https://paypal.me/matthiasluedtke"] diff --git a/.travis.yml b/.travis.yml index b2c1ad92..ae741cc8 100644 --- a/.travis.yml +++ b/.travis.yml @@ -1,10 +1,8 @@ language: go go: - - "1.10.x" - - "1.11.x" - - "1.12" - - "1.12.1" - - "1.12.2" - - "1.12.3" - - "1.12.4" + - "1.12.x" + - "1.13" + - "1.13.1" + - "1.13.2" + - "1.13.3" script: make test_all diff --git a/Dockerfile b/Dockerfile index 8abb79ac..d24ea9d2 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,20 +1,32 @@ -FROM alpine:3.8 -LABEL maintainer="Matthias Luedtke (matthiasluedtke)" +# Adapted from +# https://cloud.google.com/run/docs/quickstarts/build-and-deploy#containerizing -RUN apk add --no-cache ca-certificates -# Fixes 'Get https://github.com/: x509: failed to -# load system roots and no roots provided' +# Use the offical Golang image to create a build artifact. +# This is based on Debian and sets the GOPATH to /go. +# https://hub.docker.com/_/golang +FROM golang:1.13 as builder + +# Copy local code to the container image. +WORKDIR /go/src/github.com/mat/besticon +COPY . . -# https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#add-or-copy -COPY bin/linux_amd64/iconserver /var/www/iconserver +# Build the command inside the container. +# (You may fetch or manage dependencies here, +# either manually or with a tool like "godep".) +RUN make build_linux_amd64 + +# Use a Docker multi-stage build to create a lean production image. +# https://docs.docker.com/develop/develop-images/multistage-build/#use-multi-stage-builds +FROM alpine:3.10 +RUN apk add --no-cache ca-certificates -EXPOSE 8080 -ENV PORT=8080 +# Copy the binary to the production image from the builder stage. +COPY --from=builder /go/src/github.com/mat/besticon/bin/linux_amd64/iconserver /iconserver ENV HOST_ONLY_DOMAINS=* ENV POPULAR_SITES=bing.com,github.com,instagram.com,reddit.com ENV HTTP_CLIENT_TIMEOUT=5s ENV HTTP_MAX_AGE_DURATION=720h -WORKDIR /var/www -CMD ["./iconserver"] +# Run the web service on container startup. +CMD ["/iconserver"] diff --git a/Gopkg.lock b/Gopkg.lock index aca4fa7f..7815d2db 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -18,12 +18,12 @@ version = "v1.0.0" [[projects]] - branch = "master" digest = "1:d6afaeed1502aa28e80a4ed0981d570ad91b2579193404256ce672ed0a609e0d" name = "github.com/beorn7/perks" packages = ["quantile"] pruneopts = "UT" - revision = "3a771d992973f24aa725d07868b467d1ddfceafb" + revision = "4b2b341e8d7715fae06375aa633dbb6e91b3fb46" + version = "v1.0.0" [[projects]] branch = "master" @@ -38,7 +38,7 @@ [[projects]] branch = "master" - digest = "1:1b1bf1a9dde59ab53e0b0c7e4955169683177a1177e4a0cfa73849f407823c4e" + digest = "1:b3185d34520f6dfc0a6a0ea5612f1925582232130e8c36cd2b02fc510e7ffc0b" name = "github.com/golang/groupcache" packages = [ ".", @@ -48,15 +48,15 @@ "singleflight", ] pruneopts = "UT" - revision = "c65c006176ff7ff98bb916961c7abbc6b0afc0aa" + revision = "869f871628b6baa9cfbc11732cdf6546b17c1298" [[projects]] - digest = "1:97df918963298c287643883209a2c3f642e6593379f97ab400c2a2e219ab647d" + digest = "1:573ca21d3669500ff845bdebee890eb7fc7f0f50c59f2132f2a0c6b03d85086a" name = "github.com/golang/protobuf" packages = ["proto"] pruneopts = "UT" - revision = "aa810b61a9c79d51363740d207bb46cf8e620ed5" - version = "v1.2.0" + revision = "6c65a5562fc06764971b7c5d05c76c75e84bdbf7" + version = "v1.3.2" [[projects]] digest = "1:ff5ebae34cfbf047d505ee150de27e60570e8c394b3b8fdbb720ff6ac71985fc" @@ -67,7 +67,7 @@ version = "v1.0.1" [[projects]] - digest = "1:93a746f1060a8acbcf69344862b2ceced80f854170e1caae089b2834c5fbf7f4" + digest = "1:eb04f69c8991e52eff33c428bd729e04208bf03235be88e4df0d88497c6861b9" name = "github.com/prometheus/client_golang" packages = [ "prometheus", @@ -75,8 +75,8 @@ "prometheus/promhttp", ] pruneopts = "UT" - revision = "505eaef017263e299324067d40ca2c48f6a2cf50" - version = "v0.9.2" + revision = "4ab88e80c249ed361d3299e2930427d9ac43ef8d" + version = "v1.0.0" [[projects]] branch = "master" @@ -87,7 +87,7 @@ revision = "fd36f4220a901265f90734c3183c5f0c91daa0b8" [[projects]] - digest = "1:35cf6bdf68db765988baa9c4f10cc5d7dda1126a54bd62e252dbcd0b1fc8da90" + digest = "1:8dcedf2e8f06c7f94e48267dea0bc0be261fa97b377f3ae3e87843a92a549481" name = "github.com/prometheus/common" packages = [ "expfmt", @@ -95,21 +95,19 @@ "model", ] pruneopts = "UT" - revision = "cfeb6f9992ffa54aaa4f2170ade4067ee478b250" - version = "v0.2.0" + revision = "31bed53e4047fd6c510e43a941f90cb31be0972a" + version = "v0.6.0" [[projects]] - branch = "master" - digest = "1:5833c61ebbd625a6bad8e5a1ada2b3e13710cf3272046953a2c8915340fe60a3" + digest = "1:366f5aa02ff6c1e2eccce9ca03a22a6d983da89eecff8a89965401764534eb7c" name = "github.com/prometheus/procfs" packages = [ ".", - "internal/util", - "nfs", - "xfs", + "internal/fs", ] pruneopts = "UT" - revision = "316cf8ccfec56d206735d46333ca162eb374da8b" + revision = "3f98efb27840a48a7a2898ec80be07674d19f9c8" + version = "v0.0.3" [[projects]] branch = "master" @@ -121,11 +119,11 @@ "math/fixed", ] pruneopts = "UT" - revision = "cd38e8056d9b27bb2f265effa37fb0ea6b8a7f0f" + revision = "d6a02ce849c95fa57d9927fab7b6d9071876dfe0" [[projects]] branch = "master" - digest = "1:3d6c20b6e507bfdc8c5fafdaf797e6573e66fd9efcd5b48798b93ad2c3176ef3" + digest = "1:8a792ae42d5e401a10080206b1702dabc1289d0ffeb076cc4dc3a84dffb3a429" name = "golang.org/x/net" packages = [ "html", @@ -135,10 +133,18 @@ "publicsuffix", ] pruneopts = "UT" - revision = "927f97764cc334a6575f4b7a1584a147864d5723" + revision = "ca1201d0de80cfde86cb01aea620983605dfe99b" + +[[projects]] + branch = "master" + digest = "1:45c19f09c92373be949ee86b60ca9aa48a257051c1e27ef8ce7fb1072a86ae4e" + name = "golang.org/x/sys" + packages = ["windows"] + pruneopts = "UT" + revision = "fc99dfbffb4e5ed5758a37e31dd861afe285406b" [[projects]] - digest = "1:436b24586f8fee329e0dd65fd67c817681420cda1d7f934345c13fe78c212a73" + digest = "1:28deae5fe892797ff37a317b5bcda96d11d1c90dadd89f1337651df3bc4c586e" name = "golang.org/x/text" packages = [ "collate", @@ -155,6 +161,8 @@ "encoding/unicode", "internal/colltab", "internal/gen", + "internal/language", + "internal/language/compact", "internal/tag", "internal/triegen", "internal/ucd", @@ -169,8 +177,8 @@ "unicode/rangetable", ] pruneopts = "UT" - revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0" - version = "v0.3.0" + revision = "342b2e1fbaa52c93f31447ad2c6abc048c63e475" + version = "v0.3.2" [solve-meta] analyzer-name = "dep" diff --git a/Gopkg.toml b/Gopkg.toml index 1c2dfc15..1623722c 100644 --- a/Gopkg.toml +++ b/Gopkg.toml @@ -31,5 +31,5 @@ [metadata.heroku] root-package = "github.com/mat/besticon" - go-version = "go1.12" + go-version = "go1.13" install = [ "./..." ] diff --git a/Makefile b/Makefile index 9180c2ea..ae401da0 100644 --- a/Makefile +++ b/Makefile @@ -81,11 +81,19 @@ github_package: clean build_all_platforms file iconserver*.zip ls -alht iconserver*.zip -build_docker_image: build_linux_amd64 +## Docker ## +docker_build_image: docker build -t matthiasluedtke/iconserver:latest -t matthiasluedtke/iconserver:`cat VERSION` . -push_docker_image: +docker_run: + docker run -p 3000:8080 --env-file docker_run.env matthiasluedtke/iconserver:latest + +docker_push_images_all: docker_push_image_latest docker_push_image_version + +docker_push_image_latest: docker push matthiasluedtke/iconserver:latest + +docker_push_image_version: docker push matthiasluedtke/iconserver:`cat VERSION` new_release: bump_version rewrite-version.go git_tag_version diff --git a/Readme.markdown b/Readme.markdown index 69ff5c6b..1aaf173f 100644 --- a/Readme.markdown +++ b/Readme.markdown @@ -11,7 +11,7 @@ Try out the demo at or find out how to [de [![Build Status](https://travis-ci.org/mat/besticon.svg?branch=master)](https://travis-ci.org/mat/besticon) [![Go Report Card](https://goreportcard.com/badge/github.com/mat/besticon)](https://goreportcard.com/report/github.com/mat/besticon) -[![Donate at PayPal](https://img.shields.io/badge/paypal-donate-orange.svg?style=flat)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=6F9YBSSCM6KCW "Donate once-off to this project using Paypal") +[![Donate at PayPal](https://img.shields.io/badge/paypal-donate-orange.svg?style=flat)](https://paypal.me/matthiasluedtke "Donate once-off to this project using Paypal") ## What's this? @@ -70,7 +70,10 @@ Feel free to file other bugs - and offer your help - at to get started. +Simple options to host this service are, for example: + +- Heroku: +- Google Cloud Run: ## Docker @@ -90,7 +93,7 @@ Binaries for some operating systems can be downloaded from 1 && img.Height > 1) { result = append(result, img) diff --git a/besticon/iconserver/server.go b/besticon/iconserver/server.go index bd4ab4af..81bbe62d 100644 --- a/besticon/iconserver/server.go +++ b/besticon/iconserver/server.go @@ -82,13 +82,13 @@ func iconHandler(w http.ResponseWriter, r *http.Request) { icon := finder.IconInSizeRange(*sizeRange) if icon != nil { - redirectWithCacheControl(w, r, icon.URL) + proxyWithCacheControl(w, r, icon.URL) return } fallbackIconURL := r.FormValue("fallback_icon_url") if fallbackIconURL != "" { - redirectWithCacheControl(w, r, fallbackIconURL) + proxyWithCacheControl(w, r, fallbackIconURL) return } @@ -270,8 +270,29 @@ func startServer(port string) { const ( cacheControl = "Cache-Control" oneYear = 365 * 24 * 3600 + maxResponseBodySize = 10485760 // 10MB ) +func proxyWithCacheControl(w http.ResponseWriter, r *http.Request, redirectURL string) { + if (os.Getenv("SERVER_MODE") == "download") { + response, e := besticon.Get(redirectURL) + if e != nil { + redirectWithCacheControl(w, r, redirectURL) + return + } + + b, e := besticon.GetBodyBytes(response) + if e != nil { + redirectWithCacheControl(w, r, redirectURL) + return + } + addCacheControl(w, cacheDurationSeconds) + w.Write([]byte(b)) + } else { + redirectWithCacheControl(w, r, redirectURL) + } +} + func redirectWithCacheControl(w http.ResponseWriter, r *http.Request, redirectURL string) { addCacheControl(w, cacheDurationSeconds) http.Redirect(w, r, redirectURL, 302) diff --git a/besticon/version.go b/besticon/version.go index 63a7aac9..77d0020d 100644 --- a/besticon/version.go +++ b/besticon/version.go @@ -1,4 +1,4 @@ package besticon // Version string, same as VERSION, generated my Make -const VersionString = "v3.9.0" +const VersionString = "v3.10.0" diff --git a/docker_run.env b/docker_run.env new file mode 100644 index 00000000..57ac58a1 --- /dev/null +++ b/docker_run.env @@ -0,0 +1,5 @@ + +HOST_ONLY_DOMAINS=* +POPULAR_SITES=bing.com,github.com,instagram.com,reddit.com +HTTP_CLIENT_TIMEOUT=5s +HTTP_MAX_AGE_DURATION=10s diff --git a/vendor/github.com/golang/groupcache/groupcache.go b/vendor/github.com/golang/groupcache/groupcache.go index 316ca494..8cf714a9 100644 --- a/vendor/github.com/golang/groupcache/groupcache.go +++ b/vendor/github.com/golang/groupcache/groupcache.go @@ -245,7 +245,7 @@ func (g *Group) load(ctx Context, key string, dest Sink) (value ByteView, destPo // be only one entry for this key. // // Consider the following serialized event ordering for two - // goroutines in which this callback gets called twice for hte + // goroutines in which this callback gets called twice for the // same key: // 1: Get("key") // 2: Get("key") diff --git a/vendor/github.com/golang/groupcache/lru/lru.go b/vendor/github.com/golang/groupcache/lru/lru.go index 532cc45e..eac1c766 100644 --- a/vendor/github.com/golang/groupcache/lru/lru.go +++ b/vendor/github.com/golang/groupcache/lru/lru.go @@ -25,7 +25,7 @@ type Cache struct { // an item is evicted. Zero means no limit. MaxEntries int - // OnEvicted optionally specificies a callback function to be + // OnEvicted optionally specifies a callback function to be // executed when an entry is purged from the cache. OnEvicted func(key Key, value interface{}) diff --git a/vendor/github.com/golang/protobuf/proto/decode.go b/vendor/github.com/golang/protobuf/proto/decode.go index d9aa3c42..63b0f08b 100644 --- a/vendor/github.com/golang/protobuf/proto/decode.go +++ b/vendor/github.com/golang/protobuf/proto/decode.go @@ -186,7 +186,6 @@ func (p *Buffer) DecodeVarint() (x uint64, err error) { if b&0x80 == 0 { goto done } - // x -= 0x80 << 63 // Always zero. return 0, errOverflow diff --git a/vendor/github.com/golang/protobuf/proto/deprecated.go b/vendor/github.com/golang/protobuf/proto/deprecated.go new file mode 100644 index 00000000..35b882c0 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/deprecated.go @@ -0,0 +1,63 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2018 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +import "errors" + +// Deprecated: do not use. +type Stats struct{ Emalloc, Dmalloc, Encode, Decode, Chit, Cmiss, Size uint64 } + +// Deprecated: do not use. +func GetStats() Stats { return Stats{} } + +// Deprecated: do not use. +func MarshalMessageSet(interface{}) ([]byte, error) { + return nil, errors.New("proto: not implemented") +} + +// Deprecated: do not use. +func UnmarshalMessageSet([]byte, interface{}) error { + return errors.New("proto: not implemented") +} + +// Deprecated: do not use. +func MarshalMessageSetJSON(interface{}) ([]byte, error) { + return nil, errors.New("proto: not implemented") +} + +// Deprecated: do not use. +func UnmarshalMessageSetJSON([]byte, interface{}) error { + return errors.New("proto: not implemented") +} + +// Deprecated: do not use. +func RegisterMessageSetType(Message, int32, string) {} diff --git a/vendor/github.com/golang/protobuf/proto/equal.go b/vendor/github.com/golang/protobuf/proto/equal.go index d4db5a1c..f9b6e41b 100644 --- a/vendor/github.com/golang/protobuf/proto/equal.go +++ b/vendor/github.com/golang/protobuf/proto/equal.go @@ -246,7 +246,8 @@ func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool { return false } - m1, m2 := e1.value, e2.value + m1 := extensionAsLegacyType(e1.value) + m2 := extensionAsLegacyType(e2.value) if m1 == nil && m2 == nil { // Both have only encoded form. diff --git a/vendor/github.com/golang/protobuf/proto/extensions.go b/vendor/github.com/golang/protobuf/proto/extensions.go index 816a3b9d..fa88add3 100644 --- a/vendor/github.com/golang/protobuf/proto/extensions.go +++ b/vendor/github.com/golang/protobuf/proto/extensions.go @@ -185,9 +185,25 @@ type Extension struct { // extension will have only enc set. When such an extension is // accessed using GetExtension (or GetExtensions) desc and value // will be set. - desc *ExtensionDesc + desc *ExtensionDesc + + // value is a concrete value for the extension field. Let the type of + // desc.ExtensionType be the "API type" and the type of Extension.value + // be the "storage type". The API type and storage type are the same except: + // * For scalars (except []byte), the API type uses *T, + // while the storage type uses T. + // * For repeated fields, the API type uses []T, while the storage type + // uses *[]T. + // + // The reason for the divergence is so that the storage type more naturally + // matches what is expected of when retrieving the values through the + // protobuf reflection APIs. + // + // The value may only be populated if desc is also populated. value interface{} - enc []byte + + // enc is the raw bytes for the extension field. + enc []byte } // SetRawExtension is for testing only. @@ -334,7 +350,7 @@ func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) { // descriptors with the same field number. return nil, errors.New("proto: descriptor conflict") } - return e.value, nil + return extensionAsLegacyType(e.value), nil } if extension.ExtensionType == nil { @@ -349,11 +365,11 @@ func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) { // Remember the decoded version and drop the encoded version. // That way it is safe to mutate what we return. - e.value = v + e.value = extensionAsStorageType(v) e.desc = extension e.enc = nil emap[extension.Field] = e - return e.value, nil + return extensionAsLegacyType(e.value), nil } // defaultExtensionValue returns the default value for extension. @@ -488,7 +504,7 @@ func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error } typ := reflect.TypeOf(extension.ExtensionType) if typ != reflect.TypeOf(value) { - return errors.New("proto: bad extension value type") + return fmt.Errorf("proto: bad extension value type. got: %T, want: %T", value, extension.ExtensionType) } // nil extension values need to be caught early, because the // encoder can't distinguish an ErrNil due to a nil extension @@ -500,7 +516,7 @@ func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error } extmap := epb.extensionsWrite() - extmap[extension.Field] = Extension{desc: extension, value: value} + extmap[extension.Field] = Extension{desc: extension, value: extensionAsStorageType(value)} return nil } @@ -541,3 +557,51 @@ func RegisterExtension(desc *ExtensionDesc) { func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc { return extensionMaps[reflect.TypeOf(pb).Elem()] } + +// extensionAsLegacyType converts an value in the storage type as the API type. +// See Extension.value. +func extensionAsLegacyType(v interface{}) interface{} { + switch rv := reflect.ValueOf(v); rv.Kind() { + case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String: + // Represent primitive types as a pointer to the value. + rv2 := reflect.New(rv.Type()) + rv2.Elem().Set(rv) + v = rv2.Interface() + case reflect.Ptr: + // Represent slice types as the value itself. + switch rv.Type().Elem().Kind() { + case reflect.Slice: + if rv.IsNil() { + v = reflect.Zero(rv.Type().Elem()).Interface() + } else { + v = rv.Elem().Interface() + } + } + } + return v +} + +// extensionAsStorageType converts an value in the API type as the storage type. +// See Extension.value. +func extensionAsStorageType(v interface{}) interface{} { + switch rv := reflect.ValueOf(v); rv.Kind() { + case reflect.Ptr: + // Represent slice types as the value itself. + switch rv.Type().Elem().Kind() { + case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String: + if rv.IsNil() { + v = reflect.Zero(rv.Type().Elem()).Interface() + } else { + v = rv.Elem().Interface() + } + } + case reflect.Slice: + // Represent slice types as a pointer to the value. + if rv.Type().Elem().Kind() != reflect.Uint8 { + rv2 := reflect.New(rv.Type()) + rv2.Elem().Set(rv) + v = rv2.Interface() + } + } + return v +} diff --git a/vendor/github.com/golang/protobuf/proto/lib.go b/vendor/github.com/golang/protobuf/proto/lib.go index 75565cc6..fdd328bb 100644 --- a/vendor/github.com/golang/protobuf/proto/lib.go +++ b/vendor/github.com/golang/protobuf/proto/lib.go @@ -341,26 +341,6 @@ type Message interface { ProtoMessage() } -// Stats records allocation details about the protocol buffer encoders -// and decoders. Useful for tuning the library itself. -type Stats struct { - Emalloc uint64 // mallocs in encode - Dmalloc uint64 // mallocs in decode - Encode uint64 // number of encodes - Decode uint64 // number of decodes - Chit uint64 // number of cache hits - Cmiss uint64 // number of cache misses - Size uint64 // number of sizes -} - -// Set to true to enable stats collection. -const collectStats = false - -var stats Stats - -// GetStats returns a copy of the global Stats structure. -func GetStats() Stats { return stats } - // A Buffer is a buffer manager for marshaling and unmarshaling // protocol buffers. It may be reused between invocations to // reduce memory usage. It is not necessary to use a Buffer; @@ -960,13 +940,19 @@ func isProto3Zero(v reflect.Value) bool { return false } -// ProtoPackageIsVersion2 is referenced from generated protocol buffer files -// to assert that that code is compatible with this version of the proto package. -const ProtoPackageIsVersion2 = true +const ( + // ProtoPackageIsVersion3 is referenced from generated protocol buffer files + // to assert that that code is compatible with this version of the proto package. + ProtoPackageIsVersion3 = true + + // ProtoPackageIsVersion2 is referenced from generated protocol buffer files + // to assert that that code is compatible with this version of the proto package. + ProtoPackageIsVersion2 = true -// ProtoPackageIsVersion1 is referenced from generated protocol buffer files -// to assert that that code is compatible with this version of the proto package. -const ProtoPackageIsVersion1 = true + // ProtoPackageIsVersion1 is referenced from generated protocol buffer files + // to assert that that code is compatible with this version of the proto package. + ProtoPackageIsVersion1 = true +) // InternalMessageInfo is a type used internally by generated .pb.go files. // This type is not intended to be used by non-generated code. diff --git a/vendor/github.com/golang/protobuf/proto/message_set.go b/vendor/github.com/golang/protobuf/proto/message_set.go index 3b6ca41d..f48a7567 100644 --- a/vendor/github.com/golang/protobuf/proto/message_set.go +++ b/vendor/github.com/golang/protobuf/proto/message_set.go @@ -36,13 +36,7 @@ package proto */ import ( - "bytes" - "encoding/json" "errors" - "fmt" - "reflect" - "sort" - "sync" ) // errNoMessageTypeID occurs when a protocol buffer does not have a message type ID. @@ -145,46 +139,9 @@ func skipVarint(buf []byte) []byte { return buf[i+1:] } -// MarshalMessageSet encodes the extension map represented by m in the message set wire format. -// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option. -func MarshalMessageSet(exts interface{}) ([]byte, error) { - return marshalMessageSet(exts, false) -} - -// marshaMessageSet implements above function, with the opt to turn on / off deterministic during Marshal. -func marshalMessageSet(exts interface{}, deterministic bool) ([]byte, error) { - switch exts := exts.(type) { - case *XXX_InternalExtensions: - var u marshalInfo - siz := u.sizeMessageSet(exts) - b := make([]byte, 0, siz) - return u.appendMessageSet(b, exts, deterministic) - - case map[int32]Extension: - // This is an old-style extension map. - // Wrap it in a new-style XXX_InternalExtensions. - ie := XXX_InternalExtensions{ - p: &struct { - mu sync.Mutex - extensionMap map[int32]Extension - }{ - extensionMap: exts, - }, - } - - var u marshalInfo - siz := u.sizeMessageSet(&ie) - b := make([]byte, 0, siz) - return u.appendMessageSet(b, &ie, deterministic) - - default: - return nil, errors.New("proto: not an extension map") - } -} - -// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format. +// unmarshalMessageSet decodes the extension map encoded in buf in the message set wire format. // It is called by Unmarshal methods on protocol buffer messages with the message_set_wire_format option. -func UnmarshalMessageSet(buf []byte, exts interface{}) error { +func unmarshalMessageSet(buf []byte, exts interface{}) error { var m map[int32]Extension switch exts := exts.(type) { case *XXX_InternalExtensions: @@ -222,93 +179,3 @@ func UnmarshalMessageSet(buf []byte, exts interface{}) error { } return nil } - -// MarshalMessageSetJSON encodes the extension map represented by m in JSON format. -// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option. -func MarshalMessageSetJSON(exts interface{}) ([]byte, error) { - var m map[int32]Extension - switch exts := exts.(type) { - case *XXX_InternalExtensions: - var mu sync.Locker - m, mu = exts.extensionsRead() - if m != nil { - // Keep the extensions map locked until we're done marshaling to prevent - // races between marshaling and unmarshaling the lazily-{en,de}coded - // values. - mu.Lock() - defer mu.Unlock() - } - case map[int32]Extension: - m = exts - default: - return nil, errors.New("proto: not an extension map") - } - var b bytes.Buffer - b.WriteByte('{') - - // Process the map in key order for deterministic output. - ids := make([]int32, 0, len(m)) - for id := range m { - ids = append(ids, id) - } - sort.Sort(int32Slice(ids)) // int32Slice defined in text.go - - for i, id := range ids { - ext := m[id] - msd, ok := messageSetMap[id] - if !ok { - // Unknown type; we can't render it, so skip it. - continue - } - - if i > 0 && b.Len() > 1 { - b.WriteByte(',') - } - - fmt.Fprintf(&b, `"[%s]":`, msd.name) - - x := ext.value - if x == nil { - x = reflect.New(msd.t.Elem()).Interface() - if err := Unmarshal(ext.enc, x.(Message)); err != nil { - return nil, err - } - } - d, err := json.Marshal(x) - if err != nil { - return nil, err - } - b.Write(d) - } - b.WriteByte('}') - return b.Bytes(), nil -} - -// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format. -// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option. -func UnmarshalMessageSetJSON(buf []byte, exts interface{}) error { - // Common-case fast path. - if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) { - return nil - } - - // This is fairly tricky, and it's not clear that it is needed. - return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented") -} - -// A global registry of types that can be used in a MessageSet. - -var messageSetMap = make(map[int32]messageSetDesc) - -type messageSetDesc struct { - t reflect.Type // pointer to struct - name string -} - -// RegisterMessageSetType is called from the generated code. -func RegisterMessageSetType(m Message, fieldNum int32, name string) { - messageSetMap[fieldNum] = messageSetDesc{ - t: reflect.TypeOf(m), - name: name, - } -} diff --git a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go index b6cad908..94fa9194 100644 --- a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go +++ b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go @@ -79,10 +79,13 @@ func toPointer(i *Message) pointer { // toAddrPointer converts an interface to a pointer that points to // the interface data. -func toAddrPointer(i *interface{}, isptr bool) pointer { +func toAddrPointer(i *interface{}, isptr, deref bool) pointer { v := reflect.ValueOf(*i) u := reflect.New(v.Type()) u.Elem().Set(v) + if deref { + u = u.Elem() + } return pointer{v: u} } diff --git a/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go b/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go index d55a335d..dbfffe07 100644 --- a/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go +++ b/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go @@ -85,16 +85,21 @@ func toPointer(i *Message) pointer { // toAddrPointer converts an interface to a pointer that points to // the interface data. -func toAddrPointer(i *interface{}, isptr bool) pointer { +func toAddrPointer(i *interface{}, isptr, deref bool) (p pointer) { // Super-tricky - read or get the address of data word of interface value. if isptr { // The interface is of pointer type, thus it is a direct interface. // The data word is the pointer data itself. We take its address. - return pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)} + p = pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)} + } else { + // The interface is not of pointer type. The data word is the pointer + // to the data. + p = pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]} } - // The interface is not of pointer type. The data word is the pointer - // to the data. - return pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]} + if deref { + p.p = *(*unsafe.Pointer)(p.p) + } + return p } // valToPointer converts v to a pointer. v must be of pointer type. diff --git a/vendor/github.com/golang/protobuf/proto/properties.go b/vendor/github.com/golang/protobuf/proto/properties.go index 50b99b83..a4b8c0cd 100644 --- a/vendor/github.com/golang/protobuf/proto/properties.go +++ b/vendor/github.com/golang/protobuf/proto/properties.go @@ -38,7 +38,6 @@ package proto import ( "fmt" "log" - "os" "reflect" "sort" "strconv" @@ -194,7 +193,7 @@ func (p *Properties) Parse(s string) { // "bytes,49,opt,name=foo,def=hello!" fields := strings.Split(s, ",") // breaks def=, but handled below. if len(fields) < 2 { - fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s) + log.Printf("proto: tag has too few fields: %q", s) return } @@ -214,7 +213,7 @@ func (p *Properties) Parse(s string) { p.WireType = WireBytes // no numeric converter for non-numeric types default: - fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s) + log.Printf("proto: tag has unknown wire type: %q", s) return } @@ -334,9 +333,6 @@ func GetProperties(t reflect.Type) *StructProperties { sprop, ok := propertiesMap[t] propertiesMu.RUnlock() if ok { - if collectStats { - stats.Chit++ - } return sprop } @@ -346,17 +342,20 @@ func GetProperties(t reflect.Type) *StructProperties { return sprop } +type ( + oneofFuncsIface interface { + XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) + } + oneofWrappersIface interface { + XXX_OneofWrappers() []interface{} + } +) + // getPropertiesLocked requires that propertiesMu is held. func getPropertiesLocked(t reflect.Type) *StructProperties { if prop, ok := propertiesMap[t]; ok { - if collectStats { - stats.Chit++ - } return prop } - if collectStats { - stats.Cmiss++ - } prop := new(StructProperties) // in case of recursive protos, fill this in now. @@ -391,13 +390,14 @@ func getPropertiesLocked(t reflect.Type) *StructProperties { // Re-order prop.order. sort.Sort(prop) - type oneofMessage interface { - XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) + var oots []interface{} + switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) { + case oneofFuncsIface: + _, _, _, oots = m.XXX_OneofFuncs() + case oneofWrappersIface: + oots = m.XXX_OneofWrappers() } - if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok { - var oots []interface{} - _, _, _, oots = om.XXX_OneofFuncs() - + if len(oots) > 0 { // Interpret oneof metadata. prop.OneofTypes = make(map[string]*OneofProperties) for _, oot := range oots { diff --git a/vendor/github.com/golang/protobuf/proto/table_marshal.go b/vendor/github.com/golang/protobuf/proto/table_marshal.go index b1679449..5cb11fa9 100644 --- a/vendor/github.com/golang/protobuf/proto/table_marshal.go +++ b/vendor/github.com/golang/protobuf/proto/table_marshal.go @@ -87,6 +87,7 @@ type marshalElemInfo struct { sizer sizer marshaler marshaler isptr bool // elem is pointer typed, thus interface of this type is a direct interface (extension only) + deref bool // dereference the pointer before operating on it; implies isptr } var ( @@ -320,8 +321,11 @@ func (u *marshalInfo) computeMarshalInfo() { // get oneof implementers var oneofImplementers []interface{} - if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok { + switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) { + case oneofFuncsIface: _, _, _, oneofImplementers = m.XXX_OneofFuncs() + case oneofWrappersIface: + oneofImplementers = m.XXX_OneofWrappers() } n := t.NumField() @@ -407,13 +411,22 @@ func (u *marshalInfo) getExtElemInfo(desc *ExtensionDesc) *marshalElemInfo { panic("tag is not an integer") } wt := wiretype(tags[0]) + if t.Kind() == reflect.Ptr && t.Elem().Kind() != reflect.Struct { + t = t.Elem() + } sizer, marshaler := typeMarshaler(t, tags, false, false) + var deref bool + if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 { + t = reflect.PtrTo(t) + deref = true + } e = &marshalElemInfo{ wiretag: uint64(tag)<<3 | wt, tagsize: SizeVarint(uint64(tag) << 3), sizer: sizer, marshaler: marshaler, isptr: t.Kind() == reflect.Ptr, + deref: deref, } // update cache @@ -448,7 +461,7 @@ func (fi *marshalFieldInfo) computeMarshalFieldInfo(f *reflect.StructField) { func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofImplementers []interface{}) { fi.field = toField(f) - fi.wiretag = 1<<31 - 1 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire. + fi.wiretag = math.MaxInt32 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire. fi.isPointer = true fi.sizer, fi.marshaler = makeOneOfMarshaler(fi, f) fi.oneofElems = make(map[reflect.Type]*marshalElemInfo) @@ -476,10 +489,6 @@ func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofI } } -type oneofMessage interface { - XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) -} - // wiretype returns the wire encoding of the type. func wiretype(encoding string) uint64 { switch encoding { @@ -2310,8 +2319,8 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) { for _, k := range m.MapKeys() { ki := k.Interface() vi := m.MapIndex(k).Interface() - kaddr := toAddrPointer(&ki, false) // pointer to key - vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + kaddr := toAddrPointer(&ki, false, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr, false) // pointer to value siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) n += siz + SizeVarint(uint64(siz)) + tagsize } @@ -2329,8 +2338,8 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) { for _, k := range keys { ki := k.Interface() vi := m.MapIndex(k).Interface() - kaddr := toAddrPointer(&ki, false) // pointer to key - vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + kaddr := toAddrPointer(&ki, false, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr, false) // pointer to value b = appendVarint(b, tag) siz := keySizer(kaddr, 1) + valCachedSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) b = appendVarint(b, uint64(siz)) @@ -2399,7 +2408,7 @@ func (u *marshalInfo) sizeExtensions(ext *XXX_InternalExtensions) int { // the last time this function was called. ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, ei.tagsize) } mu.Unlock() @@ -2434,7 +2443,7 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err @@ -2465,7 +2474,7 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err @@ -2510,7 +2519,7 @@ func (u *marshalInfo) sizeMessageSet(ext *XXX_InternalExtensions) int { ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, 1) // message, tag = 3 (size=1) } mu.Unlock() @@ -2553,7 +2562,7 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) if !nerr.Merge(err) { return b, err @@ -2591,7 +2600,7 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) b = append(b, 1<<3|WireEndGroup) if !nerr.Merge(err) { @@ -2621,7 +2630,7 @@ func (u *marshalInfo) sizeV1Extensions(m map[int32]Extension) int { ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, ei.tagsize) } return n @@ -2656,7 +2665,7 @@ func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, determ ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err diff --git a/vendor/github.com/golang/protobuf/proto/table_unmarshal.go b/vendor/github.com/golang/protobuf/proto/table_unmarshal.go index ebf1caa5..acee2fc5 100644 --- a/vendor/github.com/golang/protobuf/proto/table_unmarshal.go +++ b/vendor/github.com/golang/protobuf/proto/table_unmarshal.go @@ -136,7 +136,7 @@ func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error { u.computeUnmarshalInfo() } if u.isMessageSet { - return UnmarshalMessageSet(b, m.offset(u.extensions).toExtensions()) + return unmarshalMessageSet(b, m.offset(u.extensions).toExtensions()) } var reqMask uint64 // bitmask of required fields we've seen. var errLater error @@ -362,46 +362,48 @@ func (u *unmarshalInfo) computeUnmarshalInfo() { } // Find any types associated with oneof fields. - // TODO: XXX_OneofFuncs returns more info than we need. Get rid of some of it? - fn := reflect.Zero(reflect.PtrTo(t)).MethodByName("XXX_OneofFuncs") - if fn.IsValid() { - res := fn.Call(nil)[3] // last return value from XXX_OneofFuncs: []interface{} - for i := res.Len() - 1; i >= 0; i-- { - v := res.Index(i) // interface{} - tptr := reflect.ValueOf(v.Interface()).Type() // *Msg_X - typ := tptr.Elem() // Msg_X - - f := typ.Field(0) // oneof implementers have one field - baseUnmarshal := fieldUnmarshaler(&f) - tags := strings.Split(f.Tag.Get("protobuf"), ",") - fieldNum, err := strconv.Atoi(tags[1]) - if err != nil { - panic("protobuf tag field not an integer: " + tags[1]) - } - var name string - for _, tag := range tags { - if strings.HasPrefix(tag, "name=") { - name = strings.TrimPrefix(tag, "name=") - break - } + var oneofImplementers []interface{} + switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) { + case oneofFuncsIface: + _, _, _, oneofImplementers = m.XXX_OneofFuncs() + case oneofWrappersIface: + oneofImplementers = m.XXX_OneofWrappers() + } + for _, v := range oneofImplementers { + tptr := reflect.TypeOf(v) // *Msg_X + typ := tptr.Elem() // Msg_X + + f := typ.Field(0) // oneof implementers have one field + baseUnmarshal := fieldUnmarshaler(&f) + tags := strings.Split(f.Tag.Get("protobuf"), ",") + fieldNum, err := strconv.Atoi(tags[1]) + if err != nil { + panic("protobuf tag field not an integer: " + tags[1]) + } + var name string + for _, tag := range tags { + if strings.HasPrefix(tag, "name=") { + name = strings.TrimPrefix(tag, "name=") + break } + } - // Find the oneof field that this struct implements. - // Might take O(n^2) to process all of the oneofs, but who cares. - for _, of := range oneofFields { - if tptr.Implements(of.ityp) { - // We have found the corresponding interface for this struct. - // That lets us know where this struct should be stored - // when we encounter it during unmarshaling. - unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal) - u.setTag(fieldNum, of.field, unmarshal, 0, name) - } + // Find the oneof field that this struct implements. + // Might take O(n^2) to process all of the oneofs, but who cares. + for _, of := range oneofFields { + if tptr.Implements(of.ityp) { + // We have found the corresponding interface for this struct. + // That lets us know where this struct should be stored + // when we encounter it during unmarshaling. + unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal) + u.setTag(fieldNum, of.field, unmarshal, 0, name) } } + } // Get extension ranges, if any. - fn = reflect.Zero(reflect.PtrTo(t)).MethodByName("ExtensionRangeArray") + fn := reflect.Zero(reflect.PtrTo(t)).MethodByName("ExtensionRangeArray") if fn.IsValid() { if !u.extensions.IsValid() && !u.oldExtensions.IsValid() { panic("a message with extensions, but no extensions field in " + t.Name()) @@ -1948,7 +1950,7 @@ func encodeVarint(b []byte, x uint64) []byte { // If there is an error, it returns 0,0. func decodeVarint(b []byte) (uint64, int) { var x, y uint64 - if len(b) <= 0 { + if len(b) == 0 { goto bad } x = uint64(b[0]) diff --git a/vendor/github.com/prometheus/client_golang/prometheus/build_info.go b/vendor/github.com/prometheus/client_golang/prometheus/build_info.go new file mode 100644 index 00000000..288f0e85 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/build_info.go @@ -0,0 +1,29 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build go1.12 + +package prometheus + +import "runtime/debug" + +// readBuildInfo is a wrapper around debug.ReadBuildInfo for Go 1.12+. +func readBuildInfo() (path, version, sum string) { + path, version, sum = "unknown", "unknown", "unknown" + if bi, ok := debug.ReadBuildInfo(); ok { + path = bi.Main.Path + version = bi.Main.Version + sum = bi.Main.Sum + } + return +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/build_info_pre_1.12.go b/vendor/github.com/prometheus/client_golang/prometheus/build_info_pre_1.12.go new file mode 100644 index 00000000..6609e287 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/build_info_pre_1.12.go @@ -0,0 +1,22 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build !go1.12 + +package prometheus + +// readBuildInfo is a wrapper around debug.ReadBuildInfo for Go versions before +// 1.12. Remove this whole file once the minimum supported Go version is 1.12. +func readBuildInfo() (path, version, sum string) { + return "unknown", "unknown", "unknown" +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/collector.go b/vendor/github.com/prometheus/client_golang/prometheus/collector.go index c0d70b2f..1e839650 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/collector.go @@ -79,7 +79,7 @@ type Collector interface { // of the Describe method. If a Collector sometimes collects no metrics at all // (for example vectors like CounterVec, GaugeVec, etc., which only collect // metrics after a metric with a fully specified label set has been accessed), -// it might even get registered as an unchecked Collecter (cf. the Register +// it might even get registered as an unchecked Collector (cf. the Register // method of the Registerer interface). Hence, only use this shortcut // implementation of Describe if you are certain to fulfill the contract. // diff --git a/vendor/github.com/prometheus/client_golang/prometheus/doc.go b/vendor/github.com/prometheus/client_golang/prometheus/doc.go index 5d9525de..01977de6 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/doc.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/doc.go @@ -122,13 +122,13 @@ // the Collect method. The Describe method has to return separate Desc // instances, representative of the “throw-away” metrics to be created later. // NewDesc comes in handy to create those Desc instances. Alternatively, you -// could return no Desc at all, which will marke the Collector “unchecked”. No -// checks are porformed at registration time, but metric consistency will still +// could return no Desc at all, which will mark the Collector “unchecked”. No +// checks are performed at registration time, but metric consistency will still // be ensured at scrape time, i.e. any inconsistencies will lead to scrape // errors. Thus, with unchecked Collectors, the responsibility to not collect // metrics that lead to inconsistencies in the total scrape result lies with the // implementer of the Collector. While this is not a desirable state, it is -// sometimes necessary. The typical use case is a situatios where the exact +// sometimes necessary. The typical use case is a situation where the exact // metrics to be returned by a Collector cannot be predicted at registration // time, but the implementer has sufficient knowledge of the whole system to // guarantee metric consistency. @@ -183,7 +183,6 @@ // method can then expose the gathered metrics in some way. Usually, the metrics // are served via HTTP on the /metrics endpoint. That's happening in the example // above. The tools to expose metrics via HTTP are in the promhttp sub-package. -// (The top-level functions in the prometheus package are deprecated.) // // Pushing to the Pushgateway // diff --git a/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go b/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go index ba3b9333..dc9247fe 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/go_collector.go @@ -14,9 +14,9 @@ package prometheus import ( - "fmt" "runtime" "runtime/debug" + "sync" "time" ) @@ -26,16 +26,41 @@ type goCollector struct { gcDesc *Desc goInfoDesc *Desc - // metrics to describe and collect - metrics memStatsMetrics + // ms... are memstats related. + msLast *runtime.MemStats // Previously collected memstats. + msLastTimestamp time.Time + msMtx sync.Mutex // Protects msLast and msLastTimestamp. + msMetrics memStatsMetrics + msRead func(*runtime.MemStats) // For mocking in tests. + msMaxWait time.Duration // Wait time for fresh memstats. + msMaxAge time.Duration // Maximum allowed age of old memstats. } -// NewGoCollector returns a collector which exports metrics about the current Go +// NewGoCollector returns a collector that exports metrics about the current Go // process. This includes memory stats. To collect those, runtime.ReadMemStats -// is called. This causes a stop-the-world, which is very short with Go1.9+ -// (~25µs). However, with older Go versions, the stop-the-world duration depends -// on the heap size and can be quite significant (~1.7 ms/GiB as per +// is called. This requires to “stop the world”, which usually only happens for +// garbage collection (GC). Take the following implications into account when +// deciding whether to use the Go collector: +// +// 1. The performance impact of stopping the world is the more relevant the more +// frequently metrics are collected. However, with Go1.9 or later the +// stop-the-world time per metrics collection is very short (~25µs) so that the +// performance impact will only matter in rare cases. However, with older Go +// versions, the stop-the-world duration depends on the heap size and can be +// quite significant (~1.7 ms/GiB as per // https://go-review.googlesource.com/c/go/+/34937). +// +// 2. During an ongoing GC, nothing else can stop the world. Therefore, if the +// metrics collection happens to coincide with GC, it will only complete after +// GC has finished. Usually, GC is fast enough to not cause problems. However, +// with a very large heap, GC might take multiple seconds, which is enough to +// cause scrape timeouts in common setups. To avoid this problem, the Go +// collector will use the memstats from a previous collection if +// runtime.ReadMemStats takes more than 1s. However, if there are no previously +// collected memstats, or their collection is more than 5m ago, the collection +// will block until runtime.ReadMemStats succeeds. (The problem might be solved +// in Go1.13, see https://github.com/golang/go/issues/19812 for the related Go +// issue.) func NewGoCollector() Collector { return &goCollector{ goroutinesDesc: NewDesc( @@ -54,7 +79,11 @@ func NewGoCollector() Collector { "go_info", "Information about the Go environment.", nil, Labels{"version": runtime.Version()}), - metrics: memStatsMetrics{ + msLast: &runtime.MemStats{}, + msRead: runtime.ReadMemStats, + msMaxWait: time.Second, + msMaxAge: 5 * time.Minute, + msMetrics: memStatsMetrics{ { desc: NewDesc( memstatNamespace("alloc_bytes"), @@ -253,7 +282,7 @@ func NewGoCollector() Collector { } func memstatNamespace(s string) string { - return fmt.Sprintf("go_memstats_%s", s) + return "go_memstats_" + s } // Describe returns all descriptions of the collector. @@ -262,13 +291,27 @@ func (c *goCollector) Describe(ch chan<- *Desc) { ch <- c.threadsDesc ch <- c.gcDesc ch <- c.goInfoDesc - for _, i := range c.metrics { + for _, i := range c.msMetrics { ch <- i.desc } } // Collect returns the current state of all metrics of the collector. func (c *goCollector) Collect(ch chan<- Metric) { + var ( + ms = &runtime.MemStats{} + done = make(chan struct{}) + ) + // Start reading memstats first as it might take a while. + go func() { + c.msRead(ms) + c.msMtx.Lock() + c.msLast = ms + c.msLastTimestamp = time.Now() + c.msMtx.Unlock() + close(done) + }() + ch <- MustNewConstMetric(c.goroutinesDesc, GaugeValue, float64(runtime.NumGoroutine())) n, _ := runtime.ThreadCreateProfile(nil) ch <- MustNewConstMetric(c.threadsDesc, GaugeValue, float64(n)) @@ -286,9 +329,31 @@ func (c *goCollector) Collect(ch chan<- Metric) { ch <- MustNewConstMetric(c.goInfoDesc, GaugeValue, 1) - ms := &runtime.MemStats{} - runtime.ReadMemStats(ms) - for _, i := range c.metrics { + timer := time.NewTimer(c.msMaxWait) + select { + case <-done: // Our own ReadMemStats succeeded in time. Use it. + timer.Stop() // Important for high collection frequencies to not pile up timers. + c.msCollect(ch, ms) + return + case <-timer.C: // Time out, use last memstats if possible. Continue below. + } + c.msMtx.Lock() + if time.Since(c.msLastTimestamp) < c.msMaxAge { + // Last memstats are recent enough. Collect from them under the lock. + c.msCollect(ch, c.msLast) + c.msMtx.Unlock() + return + } + // If we are here, the last memstats are too old or don't exist. We have + // to wait until our own ReadMemStats finally completes. For that to + // happen, we have to release the lock. + c.msMtx.Unlock() + <-done + c.msCollect(ch, ms) +} + +func (c *goCollector) msCollect(ch chan<- Metric, ms *runtime.MemStats) { + for _, i := range c.msMetrics { ch <- MustNewConstMetric(i.desc, i.valType, i.eval(ms)) } } @@ -299,3 +364,33 @@ type memStatsMetrics []struct { eval func(*runtime.MemStats) float64 valType ValueType } + +// NewBuildInfoCollector returns a collector collecting a single metric +// "go_build_info" with the constant value 1 and three labels "path", "version", +// and "checksum". Their label values contain the main module path, version, and +// checksum, respectively. The labels will only have meaningful values if the +// binary is built with Go module support and from source code retrieved from +// the source repository (rather than the local file system). This is usually +// accomplished by building from outside of GOPATH, specifying the full address +// of the main package, e.g. "GO111MODULE=on go run +// github.com/prometheus/client_golang/examples/random". If built without Go +// module support, all label values will be "unknown". If built with Go module +// support but using the source code from the local file system, the "path" will +// be set appropriately, but "checksum" will be empty and "version" will be +// "(devel)". +// +// This collector uses only the build information for the main module. See +// https://github.com/povilasv/prommod for an example of a collector for the +// module dependencies. +func NewBuildInfoCollector() Collector { + path, version, sum := readBuildInfo() + c := &selfCollector{MustNewConstMetric( + NewDesc( + "go_build_info", + "Build information about the main Go module.", + nil, Labels{"path": path, "version": version, "checksum": sum}, + ), + GaugeValue, 1)} + c.init(c.self) + return c +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go index f88da707..d7ea67bd 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go @@ -204,8 +204,8 @@ func newHistogram(desc *Desc, opts HistogramOpts, labelValues ...string) Histogr } } } - // Finally we know the final length of h.upperBounds and can make counts - // for both states: + // Finally we know the final length of h.upperBounds and can make buckets + // for both counts: h.counts[0].buckets = make([]uint64, len(h.upperBounds)) h.counts[1].buckets = make([]uint64, len(h.upperBounds)) @@ -224,18 +224,21 @@ type histogramCounts struct { } type histogram struct { - // countAndHotIdx is a complicated one. For lock-free yet atomic - // observations, we need to save the total count of observations again, - // combined with the index of the currently-hot counts struct, so that - // we can perform the operation on both values atomically. The least - // significant bit defines the hot counts struct. The remaining 63 bits - // represent the total count of observations. This happens under the - // assumption that the 63bit count will never overflow. Rationale: An - // observations takes about 30ns. Let's assume it could happen in - // 10ns. Overflowing the counter will then take at least (2^63)*10ns, - // which is about 3000 years. + // countAndHotIdx enables lock-free writes with use of atomic updates. + // The most significant bit is the hot index [0 or 1] of the count field + // below. Observe calls update the hot one. All remaining bits count the + // number of Observe calls. Observe starts by incrementing this counter, + // and finish by incrementing the count field in the respective + // histogramCounts, as a marker for completion. // - // This has to be first in the struct for 64bit alignment. See + // Calls of the Write method (which are non-mutating reads from the + // perspective of the histogram) swap the hot–cold under the writeMtx + // lock. A cooldown is awaited (while locked) by comparing the number of + // observations with the initiation count. Once they match, then the + // last observation on the now cool one has completed. All cool fields must + // be merged into the new hot before releasing writeMtx. + // + // Fields with atomic access first! See alignment constraint: // http://golang.org/pkg/sync/atomic/#pkg-note-BUG countAndHotIdx uint64 @@ -243,16 +246,14 @@ type histogram struct { desc *Desc writeMtx sync.Mutex // Only used in the Write method. - upperBounds []float64 - // Two counts, one is "hot" for lock-free observations, the other is // "cold" for writing out a dto.Metric. It has to be an array of // pointers to guarantee 64bit alignment of the histogramCounts, see // http://golang.org/pkg/sync/atomic/#pkg-note-BUG. counts [2]*histogramCounts - hotIdx int // Index of currently-hot counts. Only used within Write. - labelPairs []*dto.LabelPair + upperBounds []float64 + labelPairs []*dto.LabelPair } func (h *histogram) Desc() *Desc { @@ -271,11 +272,11 @@ func (h *histogram) Observe(v float64) { // 300 buckets: 154 ns/op linear - binary 61.6 ns/op i := sort.SearchFloat64s(h.upperBounds, v) - // We increment h.countAndHotIdx by 2 so that the counter in the upper - // 63 bits gets incremented by 1. At the same time, we get the new value + // We increment h.countAndHotIdx so that the counter in the lower + // 63 bits gets incremented. At the same time, we get the new value // back, which we can use to find the currently-hot counts. - n := atomic.AddUint64(&h.countAndHotIdx, 2) - hotCounts := h.counts[n%2] + n := atomic.AddUint64(&h.countAndHotIdx, 1) + hotCounts := h.counts[n>>63] if i < len(h.upperBounds) { atomic.AddUint64(&hotCounts.buckets[i], 1) @@ -293,72 +294,43 @@ func (h *histogram) Observe(v float64) { } func (h *histogram) Write(out *dto.Metric) error { - var ( - his = &dto.Histogram{} - buckets = make([]*dto.Bucket, len(h.upperBounds)) - hotCounts, coldCounts *histogramCounts - count uint64 - ) - - // For simplicity, we mutex the rest of this method. It is not in the - // hot path, i.e. Observe is called much more often than Write. The - // complication of making Write lock-free isn't worth it. + // For simplicity, we protect this whole method by a mutex. It is not in + // the hot path, i.e. Observe is called much more often than Write. The + // complication of making Write lock-free isn't worth it, if possible at + // all. h.writeMtx.Lock() defer h.writeMtx.Unlock() - // This is a bit arcane, which is why the following spells out this if - // clause in English: - // - // If the currently-hot counts struct is #0, we atomically increment - // h.countAndHotIdx by 1 so that from now on Observe will use the counts - // struct #1. Furthermore, the atomic increment gives us the new value, - // which, in its most significant 63 bits, tells us the count of - // observations done so far up to and including currently ongoing - // observations still using the counts struct just changed from hot to - // cold. To have a normal uint64 for the count, we bitshift by 1 and - // save the result in count. We also set h.hotIdx to 1 for the next - // Write call, and we will refer to counts #1 as hotCounts and to counts - // #0 as coldCounts. - // - // If the currently-hot counts struct is #1, we do the corresponding - // things the other way round. We have to _decrement_ h.countAndHotIdx - // (which is a bit arcane in itself, as we have to express -1 with an - // unsigned int...). - if h.hotIdx == 0 { - count = atomic.AddUint64(&h.countAndHotIdx, 1) >> 1 - h.hotIdx = 1 - hotCounts = h.counts[1] - coldCounts = h.counts[0] - } else { - count = atomic.AddUint64(&h.countAndHotIdx, ^uint64(0)) >> 1 // Decrement. - h.hotIdx = 0 - hotCounts = h.counts[0] - coldCounts = h.counts[1] - } - - // Now we have to wait for the now-declared-cold counts to actually cool - // down, i.e. wait for all observations still using it to finish. That's - // the case once the count in the cold counts struct is the same as the - // one atomically retrieved from the upper 63bits of h.countAndHotIdx. - for { - if count == atomic.LoadUint64(&coldCounts.count) { - break - } + // Adding 1<<63 switches the hot index (from 0 to 1 or from 1 to 0) + // without touching the count bits. See the struct comments for a full + // description of the algorithm. + n := atomic.AddUint64(&h.countAndHotIdx, 1<<63) + // count is contained unchanged in the lower 63 bits. + count := n & ((1 << 63) - 1) + // The most significant bit tells us which counts is hot. The complement + // is thus the cold one. + hotCounts := h.counts[n>>63] + coldCounts := h.counts[(^n)>>63] + + // Await cooldown. + for count != atomic.LoadUint64(&coldCounts.count) { runtime.Gosched() // Let observations get work done. } - his.SampleCount = proto.Uint64(count) - his.SampleSum = proto.Float64(math.Float64frombits(atomic.LoadUint64(&coldCounts.sumBits))) + his := &dto.Histogram{ + Bucket: make([]*dto.Bucket, len(h.upperBounds)), + SampleCount: proto.Uint64(count), + SampleSum: proto.Float64(math.Float64frombits(atomic.LoadUint64(&coldCounts.sumBits))), + } var cumCount uint64 for i, upperBound := range h.upperBounds { cumCount += atomic.LoadUint64(&coldCounts.buckets[i]) - buckets[i] = &dto.Bucket{ + his.Bucket[i] = &dto.Bucket{ CumulativeCount: proto.Uint64(cumCount), UpperBound: proto.Float64(upperBound), } } - his.Bucket = buckets out.Histogram = his out.Label = h.labelPairs diff --git a/vendor/github.com/prometheus/client_golang/prometheus/http.go b/vendor/github.com/prometheus/client_golang/prometheus/http.go deleted file mode 100644 index 9f0875bf..00000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/http.go +++ /dev/null @@ -1,504 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package prometheus - -import ( - "bufio" - "compress/gzip" - "io" - "net" - "net/http" - "strconv" - "strings" - "sync" - "time" - - "github.com/prometheus/common/expfmt" -) - -// TODO(beorn7): Remove this whole file. It is a partial mirror of -// promhttp/http.go (to avoid circular import chains) where everything HTTP -// related should live. The functions here are just for avoiding -// breakage. Everything is deprecated. - -const ( - contentTypeHeader = "Content-Type" - contentLengthHeader = "Content-Length" - contentEncodingHeader = "Content-Encoding" - acceptEncodingHeader = "Accept-Encoding" -) - -var gzipPool = sync.Pool{ - New: func() interface{} { - return gzip.NewWriter(nil) - }, -} - -// Handler returns an HTTP handler for the DefaultGatherer. It is -// already instrumented with InstrumentHandler (using "prometheus" as handler -// name). -// -// Deprecated: Please note the issues described in the doc comment of -// InstrumentHandler. You might want to consider using promhttp.Handler instead. -func Handler() http.Handler { - return InstrumentHandler("prometheus", UninstrumentedHandler()) -} - -// UninstrumentedHandler returns an HTTP handler for the DefaultGatherer. -// -// Deprecated: Use promhttp.HandlerFor(DefaultGatherer, promhttp.HandlerOpts{}) -// instead. See there for further documentation. -func UninstrumentedHandler() http.Handler { - return http.HandlerFunc(func(rsp http.ResponseWriter, req *http.Request) { - mfs, err := DefaultGatherer.Gather() - if err != nil { - httpError(rsp, err) - return - } - - contentType := expfmt.Negotiate(req.Header) - header := rsp.Header() - header.Set(contentTypeHeader, string(contentType)) - - w := io.Writer(rsp) - if gzipAccepted(req.Header) { - header.Set(contentEncodingHeader, "gzip") - gz := gzipPool.Get().(*gzip.Writer) - defer gzipPool.Put(gz) - - gz.Reset(w) - defer gz.Close() - - w = gz - } - - enc := expfmt.NewEncoder(w, contentType) - - for _, mf := range mfs { - if err := enc.Encode(mf); err != nil { - httpError(rsp, err) - return - } - } - }) -} - -var instLabels = []string{"method", "code"} - -type nower interface { - Now() time.Time -} - -type nowFunc func() time.Time - -func (n nowFunc) Now() time.Time { - return n() -} - -var now nower = nowFunc(func() time.Time { - return time.Now() -}) - -// InstrumentHandler wraps the given HTTP handler for instrumentation. It -// registers four metric collectors (if not already done) and reports HTTP -// metrics to the (newly or already) registered collectors: http_requests_total -// (CounterVec), http_request_duration_microseconds (Summary), -// http_request_size_bytes (Summary), http_response_size_bytes (Summary). Each -// has a constant label named "handler" with the provided handlerName as -// value. http_requests_total is a metric vector partitioned by HTTP method -// (label name "method") and HTTP status code (label name "code"). -// -// Deprecated: InstrumentHandler has several issues. Use the tooling provided in -// package promhttp instead. The issues are the following: (1) It uses Summaries -// rather than Histograms. Summaries are not useful if aggregation across -// multiple instances is required. (2) It uses microseconds as unit, which is -// deprecated and should be replaced by seconds. (3) The size of the request is -// calculated in a separate goroutine. Since this calculator requires access to -// the request header, it creates a race with any writes to the header performed -// during request handling. httputil.ReverseProxy is a prominent example for a -// handler performing such writes. (4) It has additional issues with HTTP/2, cf. -// https://github.com/prometheus/client_golang/issues/272. -func InstrumentHandler(handlerName string, handler http.Handler) http.HandlerFunc { - return InstrumentHandlerFunc(handlerName, handler.ServeHTTP) -} - -// InstrumentHandlerFunc wraps the given function for instrumentation. It -// otherwise works in the same way as InstrumentHandler (and shares the same -// issues). -// -// Deprecated: InstrumentHandlerFunc is deprecated for the same reasons as -// InstrumentHandler is. Use the tooling provided in package promhttp instead. -func InstrumentHandlerFunc(handlerName string, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc { - return InstrumentHandlerFuncWithOpts( - SummaryOpts{ - Subsystem: "http", - ConstLabels: Labels{"handler": handlerName}, - Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}, - }, - handlerFunc, - ) -} - -// InstrumentHandlerWithOpts works like InstrumentHandler (and shares the same -// issues) but provides more flexibility (at the cost of a more complex call -// syntax). As InstrumentHandler, this function registers four metric -// collectors, but it uses the provided SummaryOpts to create them. However, the -// fields "Name" and "Help" in the SummaryOpts are ignored. "Name" is replaced -// by "requests_total", "request_duration_microseconds", "request_size_bytes", -// and "response_size_bytes", respectively. "Help" is replaced by an appropriate -// help string. The names of the variable labels of the http_requests_total -// CounterVec are "method" (get, post, etc.), and "code" (HTTP status code). -// -// If InstrumentHandlerWithOpts is called as follows, it mimics exactly the -// behavior of InstrumentHandler: -// -// prometheus.InstrumentHandlerWithOpts( -// prometheus.SummaryOpts{ -// Subsystem: "http", -// ConstLabels: prometheus.Labels{"handler": handlerName}, -// }, -// handler, -// ) -// -// Technical detail: "requests_total" is a CounterVec, not a SummaryVec, so it -// cannot use SummaryOpts. Instead, a CounterOpts struct is created internally, -// and all its fields are set to the equally named fields in the provided -// SummaryOpts. -// -// Deprecated: InstrumentHandlerWithOpts is deprecated for the same reasons as -// InstrumentHandler is. Use the tooling provided in package promhttp instead. -func InstrumentHandlerWithOpts(opts SummaryOpts, handler http.Handler) http.HandlerFunc { - return InstrumentHandlerFuncWithOpts(opts, handler.ServeHTTP) -} - -// InstrumentHandlerFuncWithOpts works like InstrumentHandlerFunc (and shares -// the same issues) but provides more flexibility (at the cost of a more complex -// call syntax). See InstrumentHandlerWithOpts for details how the provided -// SummaryOpts are used. -// -// Deprecated: InstrumentHandlerFuncWithOpts is deprecated for the same reasons -// as InstrumentHandler is. Use the tooling provided in package promhttp instead. -func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc { - reqCnt := NewCounterVec( - CounterOpts{ - Namespace: opts.Namespace, - Subsystem: opts.Subsystem, - Name: "requests_total", - Help: "Total number of HTTP requests made.", - ConstLabels: opts.ConstLabels, - }, - instLabels, - ) - if err := Register(reqCnt); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqCnt = are.ExistingCollector.(*CounterVec) - } else { - panic(err) - } - } - - opts.Name = "request_duration_microseconds" - opts.Help = "The HTTP request latencies in microseconds." - reqDur := NewSummary(opts) - if err := Register(reqDur); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqDur = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } - - opts.Name = "request_size_bytes" - opts.Help = "The HTTP request sizes in bytes." - reqSz := NewSummary(opts) - if err := Register(reqSz); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - reqSz = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } - - opts.Name = "response_size_bytes" - opts.Help = "The HTTP response sizes in bytes." - resSz := NewSummary(opts) - if err := Register(resSz); err != nil { - if are, ok := err.(AlreadyRegisteredError); ok { - resSz = are.ExistingCollector.(Summary) - } else { - panic(err) - } - } - - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - now := time.Now() - - delegate := &responseWriterDelegator{ResponseWriter: w} - out := computeApproximateRequestSize(r) - - _, cn := w.(http.CloseNotifier) - _, fl := w.(http.Flusher) - _, hj := w.(http.Hijacker) - _, rf := w.(io.ReaderFrom) - var rw http.ResponseWriter - if cn && fl && hj && rf { - rw = &fancyResponseWriterDelegator{delegate} - } else { - rw = delegate - } - handlerFunc(rw, r) - - elapsed := float64(time.Since(now)) / float64(time.Microsecond) - - method := sanitizeMethod(r.Method) - code := sanitizeCode(delegate.status) - reqCnt.WithLabelValues(method, code).Inc() - reqDur.Observe(elapsed) - resSz.Observe(float64(delegate.written)) - reqSz.Observe(float64(<-out)) - }) -} - -func computeApproximateRequestSize(r *http.Request) <-chan int { - // Get URL length in current goroutine for avoiding a race condition. - // HandlerFunc that runs in parallel may modify the URL. - s := 0 - if r.URL != nil { - s += len(r.URL.String()) - } - - out := make(chan int, 1) - - go func() { - s += len(r.Method) - s += len(r.Proto) - for name, values := range r.Header { - s += len(name) - for _, value := range values { - s += len(value) - } - } - s += len(r.Host) - - // N.B. r.Form and r.MultipartForm are assumed to be included in r.URL. - - if r.ContentLength != -1 { - s += int(r.ContentLength) - } - out <- s - close(out) - }() - - return out -} - -type responseWriterDelegator struct { - http.ResponseWriter - - status int - written int64 - wroteHeader bool -} - -func (r *responseWriterDelegator) WriteHeader(code int) { - r.status = code - r.wroteHeader = true - r.ResponseWriter.WriteHeader(code) -} - -func (r *responseWriterDelegator) Write(b []byte) (int, error) { - if !r.wroteHeader { - r.WriteHeader(http.StatusOK) - } - n, err := r.ResponseWriter.Write(b) - r.written += int64(n) - return n, err -} - -type fancyResponseWriterDelegator struct { - *responseWriterDelegator -} - -func (f *fancyResponseWriterDelegator) CloseNotify() <-chan bool { - return f.ResponseWriter.(http.CloseNotifier).CloseNotify() -} - -func (f *fancyResponseWriterDelegator) Flush() { - f.ResponseWriter.(http.Flusher).Flush() -} - -func (f *fancyResponseWriterDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) { - return f.ResponseWriter.(http.Hijacker).Hijack() -} - -func (f *fancyResponseWriterDelegator) ReadFrom(r io.Reader) (int64, error) { - if !f.wroteHeader { - f.WriteHeader(http.StatusOK) - } - n, err := f.ResponseWriter.(io.ReaderFrom).ReadFrom(r) - f.written += n - return n, err -} - -func sanitizeMethod(m string) string { - switch m { - case "GET", "get": - return "get" - case "PUT", "put": - return "put" - case "HEAD", "head": - return "head" - case "POST", "post": - return "post" - case "DELETE", "delete": - return "delete" - case "CONNECT", "connect": - return "connect" - case "OPTIONS", "options": - return "options" - case "NOTIFY", "notify": - return "notify" - default: - return strings.ToLower(m) - } -} - -func sanitizeCode(s int) string { - switch s { - case 100: - return "100" - case 101: - return "101" - - case 200: - return "200" - case 201: - return "201" - case 202: - return "202" - case 203: - return "203" - case 204: - return "204" - case 205: - return "205" - case 206: - return "206" - - case 300: - return "300" - case 301: - return "301" - case 302: - return "302" - case 304: - return "304" - case 305: - return "305" - case 307: - return "307" - - case 400: - return "400" - case 401: - return "401" - case 402: - return "402" - case 403: - return "403" - case 404: - return "404" - case 405: - return "405" - case 406: - return "406" - case 407: - return "407" - case 408: - return "408" - case 409: - return "409" - case 410: - return "410" - case 411: - return "411" - case 412: - return "412" - case 413: - return "413" - case 414: - return "414" - case 415: - return "415" - case 416: - return "416" - case 417: - return "417" - case 418: - return "418" - - case 500: - return "500" - case 501: - return "501" - case 502: - return "502" - case 503: - return "503" - case 504: - return "504" - case 505: - return "505" - - case 428: - return "428" - case 429: - return "429" - case 431: - return "431" - case 511: - return "511" - - default: - return strconv.Itoa(s) - } -} - -// gzipAccepted returns whether the client will accept gzip-encoded content. -func gzipAccepted(header http.Header) bool { - a := header.Get(acceptEncodingHeader) - parts := strings.Split(a, ",") - for _, part := range parts { - part = strings.TrimSpace(part) - if part == "gzip" || strings.HasPrefix(part, "gzip;") { - return true - } - } - return false -} - -// httpError removes any content-encoding header and then calls http.Error with -// the provided error and http.StatusInternalServerErrer. Error contents is -// supposed to be uncompressed plain text. However, same as with a plain -// http.Error, any header settings will be void if the header has already been -// sent. The error message will still be written to the writer, but it will -// probably be of limited use. -func httpError(rsp http.ResponseWriter, err error) { - rsp.Header().Del(contentEncodingHeader) - http.Error( - rsp, - "An error has occurred while serving metrics:\n\n"+err.Error(), - http.StatusInternalServerError, - ) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go index 55176d58..9b809794 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go @@ -16,8 +16,6 @@ package prometheus import ( "errors" "os" - - "github.com/prometheus/procfs" ) type processCollector struct { @@ -59,20 +57,9 @@ type ProcessCollectorOpts struct { // collector for the current process with an empty namespace string and no error // reporting. // -// Currently, the collector depends on a Linux-style proc filesystem and -// therefore only exports metrics for Linux. -// -// Note: An older version of this function had the following signature: -// -// NewProcessCollector(pid int, namespace string) Collector -// -// Most commonly, it was called as -// -// NewProcessCollector(os.Getpid(), "") -// -// The following call of the current version is equivalent to the above: -// -// NewProcessCollector(ProcessCollectorOpts{}) +// The collector only works on operating systems with a Linux-style proc +// filesystem and on Microsoft Windows. On other operating systems, it will not +// collect any metrics. func NewProcessCollector(opts ProcessCollectorOpts) Collector { ns := "" if len(opts.Namespace) > 0 { @@ -126,7 +113,7 @@ func NewProcessCollector(opts ProcessCollectorOpts) Collector { } // Set up process metric collection if supported by the runtime. - if _, err := procfs.NewStat(); err == nil { + if canCollectProcess() { c.collectFn = c.processCollect } else { c.collectFn = func(ch chan<- Metric) { @@ -153,46 +140,6 @@ func (c *processCollector) Collect(ch chan<- Metric) { c.collectFn(ch) } -func (c *processCollector) processCollect(ch chan<- Metric) { - pid, err := c.pidFn() - if err != nil { - c.reportError(ch, nil, err) - return - } - - p, err := procfs.NewProc(pid) - if err != nil { - c.reportError(ch, nil, err) - return - } - - if stat, err := p.NewStat(); err == nil { - ch <- MustNewConstMetric(c.cpuTotal, CounterValue, stat.CPUTime()) - ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(stat.VirtualMemory())) - ch <- MustNewConstMetric(c.rss, GaugeValue, float64(stat.ResidentMemory())) - if startTime, err := stat.StartTime(); err == nil { - ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime) - } else { - c.reportError(ch, c.startTime, err) - } - } else { - c.reportError(ch, nil, err) - } - - if fds, err := p.FileDescriptorsLen(); err == nil { - ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(fds)) - } else { - c.reportError(ch, c.openFDs, err) - } - - if limits, err := p.NewLimits(); err == nil { - ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(limits.OpenFiles)) - ch <- MustNewConstMetric(c.maxVsize, GaugeValue, float64(limits.AddressSpace)) - } else { - c.reportError(ch, nil, err) - } -} - func (c *processCollector) reportError(ch chan<- Metric, desc *Desc, err error) { if !c.reportErrors { return diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go new file mode 100644 index 00000000..3117461c --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go @@ -0,0 +1,65 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build !windows + +package prometheus + +import ( + "github.com/prometheus/procfs" +) + +func canCollectProcess() bool { + _, err := procfs.NewDefaultFS() + return err == nil +} + +func (c *processCollector) processCollect(ch chan<- Metric) { + pid, err := c.pidFn() + if err != nil { + c.reportError(ch, nil, err) + return + } + + p, err := procfs.NewProc(pid) + if err != nil { + c.reportError(ch, nil, err) + return + } + + if stat, err := p.Stat(); err == nil { + ch <- MustNewConstMetric(c.cpuTotal, CounterValue, stat.CPUTime()) + ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(stat.VirtualMemory())) + ch <- MustNewConstMetric(c.rss, GaugeValue, float64(stat.ResidentMemory())) + if startTime, err := stat.StartTime(); err == nil { + ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime) + } else { + c.reportError(ch, c.startTime, err) + } + } else { + c.reportError(ch, nil, err) + } + + if fds, err := p.FileDescriptorsLen(); err == nil { + ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(fds)) + } else { + c.reportError(ch, c.openFDs, err) + } + + if limits, err := p.Limits(); err == nil { + ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(limits.OpenFiles)) + ch <- MustNewConstMetric(c.maxVsize, GaugeValue, float64(limits.AddressSpace)) + } else { + c.reportError(ch, nil, err) + } +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go new file mode 100644 index 00000000..e0b935d1 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go @@ -0,0 +1,112 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package prometheus + +import ( + "syscall" + "unsafe" + + "golang.org/x/sys/windows" +) + +func canCollectProcess() bool { + return true +} + +var ( + modpsapi = syscall.NewLazyDLL("psapi.dll") + modkernel32 = syscall.NewLazyDLL("kernel32.dll") + + procGetProcessMemoryInfo = modpsapi.NewProc("GetProcessMemoryInfo") + procGetProcessHandleCount = modkernel32.NewProc("GetProcessHandleCount") +) + +type processMemoryCounters struct { + // https://docs.microsoft.com/en-us/windows/desktop/api/psapi/ns-psapi-_process_memory_counters_ex + _ uint32 + PageFaultCount uint32 + PeakWorkingSetSize uint64 + WorkingSetSize uint64 + QuotaPeakPagedPoolUsage uint64 + QuotaPagedPoolUsage uint64 + QuotaPeakNonPagedPoolUsage uint64 + QuotaNonPagedPoolUsage uint64 + PagefileUsage uint64 + PeakPagefileUsage uint64 + PrivateUsage uint64 +} + +func getProcessMemoryInfo(handle windows.Handle) (processMemoryCounters, error) { + mem := processMemoryCounters{} + r1, _, err := procGetProcessMemoryInfo.Call( + uintptr(handle), + uintptr(unsafe.Pointer(&mem)), + uintptr(unsafe.Sizeof(mem)), + ) + if r1 != 1 { + return mem, err + } else { + return mem, nil + } +} + +func getProcessHandleCount(handle windows.Handle) (uint32, error) { + var count uint32 + r1, _, err := procGetProcessHandleCount.Call( + uintptr(handle), + uintptr(unsafe.Pointer(&count)), + ) + if r1 != 1 { + return 0, err + } else { + return count, nil + } +} + +func (c *processCollector) processCollect(ch chan<- Metric) { + h, err := windows.GetCurrentProcess() + if err != nil { + c.reportError(ch, nil, err) + return + } + + var startTime, exitTime, kernelTime, userTime windows.Filetime + err = windows.GetProcessTimes(h, &startTime, &exitTime, &kernelTime, &userTime) + if err != nil { + c.reportError(ch, nil, err) + return + } + ch <- MustNewConstMetric(c.startTime, GaugeValue, float64(startTime.Nanoseconds()/1e9)) + ch <- MustNewConstMetric(c.cpuTotal, CounterValue, fileTimeToSeconds(kernelTime)+fileTimeToSeconds(userTime)) + + mem, err := getProcessMemoryInfo(h) + if err != nil { + c.reportError(ch, nil, err) + return + } + ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(mem.PrivateUsage)) + ch <- MustNewConstMetric(c.rss, GaugeValue, float64(mem.WorkingSetSize)) + + handles, err := getProcessHandleCount(h) + if err != nil { + c.reportError(ch, nil, err) + return + } + ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(handles)) + ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(16*1024*1024)) // Windows has a hard-coded max limit, not per-process. +} + +func fileTimeToSeconds(ft windows.Filetime) float64 { + return float64(uint64(ft.HighDateTime)<<32+uint64(ft.LowDateTime)) / 1e7 +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go index 67b56d37..fa535684 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go @@ -38,7 +38,6 @@ type delegator interface { type responseWriterDelegator struct { http.ResponseWriter - handler, method string status int written int64 wroteHeader bool @@ -75,8 +74,11 @@ type closeNotifierDelegator struct{ *responseWriterDelegator } type flusherDelegator struct{ *responseWriterDelegator } type hijackerDelegator struct{ *responseWriterDelegator } type readerFromDelegator struct{ *responseWriterDelegator } +type pusherDelegator struct{ *responseWriterDelegator } func (d closeNotifierDelegator) CloseNotify() <-chan bool { + //lint:ignore SA1019 http.CloseNotifier is deprecated but we don't want to + //remove support from client_golang yet. return d.ResponseWriter.(http.CloseNotifier).CloseNotify() } func (d flusherDelegator) Flush() { @@ -93,6 +95,9 @@ func (d readerFromDelegator) ReadFrom(re io.Reader) (int64, error) { d.written += n return n, err } +func (d pusherDelegator) Push(target string, opts *http.PushOptions) error { + return d.ResponseWriter.(http.Pusher).Push(target, opts) +} var pickDelegator = make([]func(*responseWriterDelegator) delegator, 32) @@ -196,4 +201,157 @@ func init() { http.CloseNotifier }{d, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} } + pickDelegator[pusher] = func(d *responseWriterDelegator) delegator { // 16 + return pusherDelegator{d} + } + pickDelegator[pusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 17 + return struct { + *responseWriterDelegator + http.Pusher + http.CloseNotifier + }{d, pusherDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+flusher] = func(d *responseWriterDelegator) delegator { // 18 + return struct { + *responseWriterDelegator + http.Pusher + http.Flusher + }{d, pusherDelegator{d}, flusherDelegator{d}} + } + pickDelegator[pusher+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 19 + return struct { + *responseWriterDelegator + http.Pusher + http.Flusher + http.CloseNotifier + }{d, pusherDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+hijacker] = func(d *responseWriterDelegator) delegator { // 20 + return struct { + *responseWriterDelegator + http.Pusher + http.Hijacker + }{d, pusherDelegator{d}, hijackerDelegator{d}} + } + pickDelegator[pusher+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 21 + return struct { + *responseWriterDelegator + http.Pusher + http.Hijacker + http.CloseNotifier + }{d, pusherDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 22 + return struct { + *responseWriterDelegator + http.Pusher + http.Hijacker + http.Flusher + }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}} + } + pickDelegator[pusher+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { //23 + return struct { + *responseWriterDelegator + http.Pusher + http.Hijacker + http.Flusher + http.CloseNotifier + }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+readerFrom] = func(d *responseWriterDelegator) delegator { // 24 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + }{d, pusherDelegator{d}, readerFromDelegator{d}} + } + pickDelegator[pusher+readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 25 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.CloseNotifier + }{d, pusherDelegator{d}, readerFromDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 26 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Flusher + }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}} + } + pickDelegator[pusher+readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 27 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Flusher + http.CloseNotifier + }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 28 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Hijacker + }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}} + } + pickDelegator[pusher+readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 29 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Hijacker + http.CloseNotifier + }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}} + } + pickDelegator[pusher+readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 30 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Hijacker + http.Flusher + }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}} + } + pickDelegator[pusher+readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 31 + return struct { + *responseWriterDelegator + http.Pusher + io.ReaderFrom + http.Hijacker + http.Flusher + http.CloseNotifier + }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} + } +} + +func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator { + d := &responseWriterDelegator{ + ResponseWriter: w, + observeWriteHeader: observeWriteHeaderFunc, + } + + id := 0 + //lint:ignore SA1019 http.CloseNotifier is deprecated but we don't want to + //remove support from client_golang yet. + if _, ok := w.(http.CloseNotifier); ok { + id += closeNotifier + } + if _, ok := w.(http.Flusher); ok { + id += flusher + } + if _, ok := w.(http.Hijacker); ok { + id += hijacker + } + if _, ok := w.(io.ReaderFrom); ok { + id += readerFrom + } + if _, ok := w.(http.Pusher); ok { + id += pusher + } + + return pickDelegator[id](d) } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go deleted file mode 100644 index 31a70695..00000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go +++ /dev/null @@ -1,181 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.8 - -package promhttp - -import ( - "io" - "net/http" -) - -type pusherDelegator struct{ *responseWriterDelegator } - -func (d pusherDelegator) Push(target string, opts *http.PushOptions) error { - return d.ResponseWriter.(http.Pusher).Push(target, opts) -} - -func init() { - pickDelegator[pusher] = func(d *responseWriterDelegator) delegator { // 16 - return pusherDelegator{d} - } - pickDelegator[pusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 17 - return struct { - *responseWriterDelegator - http.Pusher - http.CloseNotifier - }{d, pusherDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+flusher] = func(d *responseWriterDelegator) delegator { // 18 - return struct { - *responseWriterDelegator - http.Pusher - http.Flusher - }{d, pusherDelegator{d}, flusherDelegator{d}} - } - pickDelegator[pusher+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 19 - return struct { - *responseWriterDelegator - http.Pusher - http.Flusher - http.CloseNotifier - }{d, pusherDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+hijacker] = func(d *responseWriterDelegator) delegator { // 20 - return struct { - *responseWriterDelegator - http.Pusher - http.Hijacker - }{d, pusherDelegator{d}, hijackerDelegator{d}} - } - pickDelegator[pusher+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 21 - return struct { - *responseWriterDelegator - http.Pusher - http.Hijacker - http.CloseNotifier - }{d, pusherDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 22 - return struct { - *responseWriterDelegator - http.Pusher - http.Hijacker - http.Flusher - }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}} - } - pickDelegator[pusher+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { //23 - return struct { - *responseWriterDelegator - http.Pusher - http.Hijacker - http.Flusher - http.CloseNotifier - }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+readerFrom] = func(d *responseWriterDelegator) delegator { // 24 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - }{d, pusherDelegator{d}, readerFromDelegator{d}} - } - pickDelegator[pusher+readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 25 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.CloseNotifier - }{d, pusherDelegator{d}, readerFromDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 26 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Flusher - }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}} - } - pickDelegator[pusher+readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 27 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Flusher - http.CloseNotifier - }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 28 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Hijacker - }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}} - } - pickDelegator[pusher+readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 29 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Hijacker - http.CloseNotifier - }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}} - } - pickDelegator[pusher+readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 30 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Hijacker - http.Flusher - }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}} - } - pickDelegator[pusher+readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 31 - return struct { - *responseWriterDelegator - http.Pusher - io.ReaderFrom - http.Hijacker - http.Flusher - http.CloseNotifier - }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}} - } -} - -func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator { - d := &responseWriterDelegator{ - ResponseWriter: w, - observeWriteHeader: observeWriteHeaderFunc, - } - - id := 0 - if _, ok := w.(http.CloseNotifier); ok { - id += closeNotifier - } - if _, ok := w.(http.Flusher); ok { - id += flusher - } - if _, ok := w.(http.Hijacker); ok { - id += hijacker - } - if _, ok := w.(io.ReaderFrom); ok { - id += readerFrom - } - if _, ok := w.(http.Pusher); ok { - id += pusher - } - - return pickDelegator[id](d) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go index 668eb6b3..cea5a90f 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go @@ -47,7 +47,6 @@ import ( const ( contentTypeHeader = "Content-Type" - contentLengthHeader = "Content-Length" contentEncodingHeader = "Content-Encoding" acceptEncodingHeader = "Accept-Encoding" ) @@ -85,10 +84,32 @@ func Handler() http.Handler { // instrumentation. Use the InstrumentMetricHandler function to apply the same // kind of instrumentation as it is used by the Handler function. func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler { - var inFlightSem chan struct{} + var ( + inFlightSem chan struct{} + errCnt = prometheus.NewCounterVec( + prometheus.CounterOpts{ + Name: "promhttp_metric_handler_errors_total", + Help: "Total number of internal errors encountered by the promhttp metric handler.", + }, + []string{"cause"}, + ) + ) + if opts.MaxRequestsInFlight > 0 { inFlightSem = make(chan struct{}, opts.MaxRequestsInFlight) } + if opts.Registry != nil { + // Initialize all possibilites that can occur below. + errCnt.WithLabelValues("gathering") + errCnt.WithLabelValues("encoding") + if err := opts.Registry.Register(errCnt); err != nil { + if are, ok := err.(prometheus.AlreadyRegisteredError); ok { + errCnt = are.ExistingCollector.(*prometheus.CounterVec) + } else { + panic(err) + } + } + } h := http.HandlerFunc(func(rsp http.ResponseWriter, req *http.Request) { if inFlightSem != nil { @@ -107,6 +128,7 @@ func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler { if opts.ErrorLog != nil { opts.ErrorLog.Println("error gathering metrics:", err) } + errCnt.WithLabelValues("gathering").Inc() switch opts.ErrorHandling { case PanicOnError: panic(err) @@ -147,6 +169,7 @@ func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler { if opts.ErrorLog != nil { opts.ErrorLog.Println("error encoding and sending metric family:", err) } + errCnt.WithLabelValues("encoding").Inc() switch opts.ErrorHandling { case PanicOnError: panic(err) @@ -237,9 +260,12 @@ const ( // Ignore errors and try to serve as many metrics as possible. However, // if no metrics can be served, serve an HTTP status code 500 and the // last error message in the body. Only use this in deliberate "best - // effort" metrics collection scenarios. It is recommended to at least - // log errors (by providing an ErrorLog in HandlerOpts) to not mask - // errors completely. + // effort" metrics collection scenarios. In this case, it is highly + // recommended to provide other means of detecting errors: By setting an + // ErrorLog in HandlerOpts, the errors are logged. By providing a + // Registry in HandlerOpts, the exposed metrics include an error counter + // "promhttp_metric_handler_errors_total", which can be used for + // alerts. ContinueOnError // Panic upon the first error encountered (useful for "crash only" apps). PanicOnError @@ -262,6 +288,18 @@ type HandlerOpts struct { // logged regardless of the configured ErrorHandling provided ErrorLog // is not nil. ErrorHandling HandlerErrorHandling + // If Registry is not nil, it is used to register a metric + // "promhttp_metric_handler_errors_total", partitioned by "cause". A + // failed registration causes a panic. Note that this error counter is + // different from the instrumentation you get from the various + // InstrumentHandler... helpers. It counts errors that don't necessarily + // result in a non-2xx HTTP status code. There are two typical cases: + // (1) Encoding errors that only happen after streaming of the HTTP body + // has already started (and the status code 200 has been sent). This + // should only happen with custom collectors. (2) Collection errors with + // no effect on the HTTP status code because ErrorHandling is set to + // ContinueOnError. + Registry prometheus.Registerer // If DisableCompression is true, the handler will never compress the // response, even if requested by the client. DisableCompression bool diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go index 86fd5644..83c49b66 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go @@ -14,7 +14,9 @@ package promhttp import ( + "crypto/tls" "net/http" + "net/http/httptrace" "time" "github.com/prometheus/client_golang/prometheus" @@ -95,3 +97,123 @@ func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundT return resp, err }) } + +// InstrumentTrace is used to offer flexibility in instrumenting the available +// httptrace.ClientTrace hook functions. Each function is passed a float64 +// representing the time in seconds since the start of the http request. A user +// may choose to use separately buckets Histograms, or implement custom +// instance labels on a per function basis. +type InstrumentTrace struct { + GotConn func(float64) + PutIdleConn func(float64) + GotFirstResponseByte func(float64) + Got100Continue func(float64) + DNSStart func(float64) + DNSDone func(float64) + ConnectStart func(float64) + ConnectDone func(float64) + TLSHandshakeStart func(float64) + TLSHandshakeDone func(float64) + WroteHeaders func(float64) + Wait100Continue func(float64) + WroteRequest func(float64) +} + +// InstrumentRoundTripperTrace is a middleware that wraps the provided +// RoundTripper and reports times to hook functions provided in the +// InstrumentTrace struct. Hook functions that are not present in the provided +// InstrumentTrace struct are ignored. Times reported to the hook functions are +// time since the start of the request. Only with Go1.9+, those times are +// guaranteed to never be negative. (Earlier Go versions are not using a +// monotonic clock.) Note that partitioning of Histograms is expensive and +// should be used judiciously. +// +// For hook functions that receive an error as an argument, no observations are +// made in the event of a non-nil error value. +// +// See the example for ExampleInstrumentRoundTripperDuration for example usage. +func InstrumentRoundTripperTrace(it *InstrumentTrace, next http.RoundTripper) RoundTripperFunc { + return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { + start := time.Now() + + trace := &httptrace.ClientTrace{ + GotConn: func(_ httptrace.GotConnInfo) { + if it.GotConn != nil { + it.GotConn(time.Since(start).Seconds()) + } + }, + PutIdleConn: func(err error) { + if err != nil { + return + } + if it.PutIdleConn != nil { + it.PutIdleConn(time.Since(start).Seconds()) + } + }, + DNSStart: func(_ httptrace.DNSStartInfo) { + if it.DNSStart != nil { + it.DNSStart(time.Since(start).Seconds()) + } + }, + DNSDone: func(_ httptrace.DNSDoneInfo) { + if it.DNSDone != nil { + it.DNSDone(time.Since(start).Seconds()) + } + }, + ConnectStart: func(_, _ string) { + if it.ConnectStart != nil { + it.ConnectStart(time.Since(start).Seconds()) + } + }, + ConnectDone: func(_, _ string, err error) { + if err != nil { + return + } + if it.ConnectDone != nil { + it.ConnectDone(time.Since(start).Seconds()) + } + }, + GotFirstResponseByte: func() { + if it.GotFirstResponseByte != nil { + it.GotFirstResponseByte(time.Since(start).Seconds()) + } + }, + Got100Continue: func() { + if it.Got100Continue != nil { + it.Got100Continue(time.Since(start).Seconds()) + } + }, + TLSHandshakeStart: func() { + if it.TLSHandshakeStart != nil { + it.TLSHandshakeStart(time.Since(start).Seconds()) + } + }, + TLSHandshakeDone: func(_ tls.ConnectionState, err error) { + if err != nil { + return + } + if it.TLSHandshakeDone != nil { + it.TLSHandshakeDone(time.Since(start).Seconds()) + } + }, + WroteHeaders: func() { + if it.WroteHeaders != nil { + it.WroteHeaders(time.Since(start).Seconds()) + } + }, + Wait100Continue: func() { + if it.Wait100Continue != nil { + it.Wait100Continue(time.Since(start).Seconds()) + } + }, + WroteRequest: func(_ httptrace.WroteRequestInfo) { + if it.WroteRequest != nil { + it.WroteRequest(time.Since(start).Seconds()) + } + }, + } + r = r.WithContext(httptrace.WithClientTrace(r.Context(), trace)) + + return next.RoundTrip(r) + }) +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go deleted file mode 100644 index a034d1ec..00000000 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go +++ /dev/null @@ -1,144 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.8 - -package promhttp - -import ( - "context" - "crypto/tls" - "net/http" - "net/http/httptrace" - "time" -) - -// InstrumentTrace is used to offer flexibility in instrumenting the available -// httptrace.ClientTrace hook functions. Each function is passed a float64 -// representing the time in seconds since the start of the http request. A user -// may choose to use separately buckets Histograms, or implement custom -// instance labels on a per function basis. -type InstrumentTrace struct { - GotConn func(float64) - PutIdleConn func(float64) - GotFirstResponseByte func(float64) - Got100Continue func(float64) - DNSStart func(float64) - DNSDone func(float64) - ConnectStart func(float64) - ConnectDone func(float64) - TLSHandshakeStart func(float64) - TLSHandshakeDone func(float64) - WroteHeaders func(float64) - Wait100Continue func(float64) - WroteRequest func(float64) -} - -// InstrumentRoundTripperTrace is a middleware that wraps the provided -// RoundTripper and reports times to hook functions provided in the -// InstrumentTrace struct. Hook functions that are not present in the provided -// InstrumentTrace struct are ignored. Times reported to the hook functions are -// time since the start of the request. Only with Go1.9+, those times are -// guaranteed to never be negative. (Earlier Go versions are not using a -// monotonic clock.) Note that partitioning of Histograms is expensive and -// should be used judiciously. -// -// For hook functions that receive an error as an argument, no observations are -// made in the event of a non-nil error value. -// -// See the example for ExampleInstrumentRoundTripperDuration for example usage. -func InstrumentRoundTripperTrace(it *InstrumentTrace, next http.RoundTripper) RoundTripperFunc { - return RoundTripperFunc(func(r *http.Request) (*http.Response, error) { - start := time.Now() - - trace := &httptrace.ClientTrace{ - GotConn: func(_ httptrace.GotConnInfo) { - if it.GotConn != nil { - it.GotConn(time.Since(start).Seconds()) - } - }, - PutIdleConn: func(err error) { - if err != nil { - return - } - if it.PutIdleConn != nil { - it.PutIdleConn(time.Since(start).Seconds()) - } - }, - DNSStart: func(_ httptrace.DNSStartInfo) { - if it.DNSStart != nil { - it.DNSStart(time.Since(start).Seconds()) - } - }, - DNSDone: func(_ httptrace.DNSDoneInfo) { - if it.DNSDone != nil { - it.DNSDone(time.Since(start).Seconds()) - } - }, - ConnectStart: func(_, _ string) { - if it.ConnectStart != nil { - it.ConnectStart(time.Since(start).Seconds()) - } - }, - ConnectDone: func(_, _ string, err error) { - if err != nil { - return - } - if it.ConnectDone != nil { - it.ConnectDone(time.Since(start).Seconds()) - } - }, - GotFirstResponseByte: func() { - if it.GotFirstResponseByte != nil { - it.GotFirstResponseByte(time.Since(start).Seconds()) - } - }, - Got100Continue: func() { - if it.Got100Continue != nil { - it.Got100Continue(time.Since(start).Seconds()) - } - }, - TLSHandshakeStart: func() { - if it.TLSHandshakeStart != nil { - it.TLSHandshakeStart(time.Since(start).Seconds()) - } - }, - TLSHandshakeDone: func(_ tls.ConnectionState, err error) { - if err != nil { - return - } - if it.TLSHandshakeDone != nil { - it.TLSHandshakeDone(time.Since(start).Seconds()) - } - }, - WroteHeaders: func() { - if it.WroteHeaders != nil { - it.WroteHeaders(time.Since(start).Seconds()) - } - }, - Wait100Continue: func() { - if it.Wait100Continue != nil { - it.Wait100Continue(time.Since(start).Seconds()) - } - }, - WroteRequest: func(_ httptrace.WroteRequestInfo) { - if it.WroteRequest != nil { - it.WroteRequest(time.Since(start).Seconds()) - } - }, - } - r = r.WithContext(httptrace.WithClientTrace(context.Background(), trace)) - - return next.RoundTrip(r) - }) -} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/registry.go b/vendor/github.com/prometheus/client_golang/prometheus/registry.go index b5e70b93..6c32516a 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/registry.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/registry.go @@ -325,9 +325,17 @@ func (r *Registry) Register(c Collector) error { return nil } if existing, exists := r.collectorsByID[collectorID]; exists { - return AlreadyRegisteredError{ - ExistingCollector: existing, - NewCollector: c, + switch e := existing.(type) { + case *wrappingCollector: + return AlreadyRegisteredError{ + ExistingCollector: e.unwrapRecursively(), + NewCollector: c, + } + default: + return AlreadyRegisteredError{ + ExistingCollector: e, + NewCollector: c, + } } } // If the collectorID is new, but at least one of the descs existed @@ -680,7 +688,7 @@ func processMetric( // Gatherers is a slice of Gatherer instances that implements the Gatherer // interface itself. Its Gather method calls Gather on all Gatherers in the // slice in order and returns the merged results. Errors returned from the -// Gather calles are all returned in a flattened MultiError. Duplicate and +// Gather calls are all returned in a flattened MultiError. Duplicate and // inconsistent Metrics are skipped (first occurrence in slice order wins) and // reported in the returned error. // diff --git a/vendor/github.com/prometheus/client_golang/prometheus/summary.go b/vendor/github.com/prometheus/client_golang/prometheus/summary.go index 2980614d..c970fdee 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/summary.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/summary.go @@ -16,8 +16,10 @@ package prometheus import ( "fmt" "math" + "runtime" "sort" "sync" + "sync/atomic" "time" "github.com/beorn7/perks/quantile" @@ -37,7 +39,7 @@ const quantileLabel = "quantile" // A typical use-case is the observation of request latencies. By default, a // Summary provides the median, the 90th and the 99th percentile of the latency // as rank estimations. However, the default behavior will change in the -// upcoming v0.10 of the library. There will be no rank estimations at all by +// upcoming v1.0.0 of the library. There will be no rank estimations at all by // default. For a sane transition, it is recommended to set the desired rank // estimations explicitly. // @@ -56,16 +58,8 @@ type Summary interface { Observe(float64) } -// DefObjectives are the default Summary quantile values. -// -// Deprecated: DefObjectives will not be used as the default objectives in -// v0.10 of the library. The default Summary will have no quantiles then. -var ( - DefObjectives = map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001} - - errQuantileLabelNotAllowed = fmt.Errorf( - "%q is not allowed as label name in summaries", quantileLabel, - ) +var errQuantileLabelNotAllowed = fmt.Errorf( + "%q is not allowed as label name in summaries", quantileLabel, ) // Default values for SummaryOpts. @@ -84,7 +78,7 @@ const ( // mandatory to set Name to a non-empty string. While all other fields are // optional and can safely be left at their zero value, it is recommended to set // a help string and to explicitly set the Objectives field to the desired value -// as the default value will change in the upcoming v0.10 of the library. +// as the default value will change in the upcoming v1.0.0 of the library. type SummaryOpts struct { // Namespace, Subsystem, and Name are components of the fully-qualified // name of the Summary (created by joining these components with @@ -121,13 +115,8 @@ type SummaryOpts struct { // Objectives defines the quantile rank estimates with their respective // absolute error. If Objectives[q] = e, then the value reported for q // will be the φ-quantile value for some φ between q-e and q+e. The - // default value is DefObjectives. It is used if Objectives is left at - // its zero value (i.e. nil). To create a Summary without Objectives, - // set it to an empty map (i.e. map[float64]float64{}). - // - // Deprecated: Note that the current value of DefObjectives is - // deprecated. It will be replaced by an empty map in v0.10 of the - // library. Please explicitly set Objectives to the desired value. + // default value is an empty map, resulting in a summary without + // quantiles. Objectives map[float64]float64 // MaxAge defines the duration for which an observation stays relevant @@ -151,7 +140,7 @@ type SummaryOpts struct { BufCap uint32 } -// Great fuck-up with the sliding-window decay algorithm... The Merge method of +// Problem with the sliding-window decay algorithm... The Merge method of // perk/quantile is actually not working as advertised - and it might be // unfixable, as the underlying algorithm is apparently not capable of merging // summaries in the first place. To avoid using Merge, we are currently adding @@ -196,7 +185,7 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary { } if opts.Objectives == nil { - opts.Objectives = DefObjectives + opts.Objectives = map[float64]float64{} } if opts.MaxAge < 0 { @@ -214,6 +203,17 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary { opts.BufCap = DefBufCap } + if len(opts.Objectives) == 0 { + // Use the lock-free implementation of a Summary without objectives. + s := &noObjectivesSummary{ + desc: desc, + labelPairs: makeLabelPairs(desc, labelValues), + counts: [2]*summaryCounts{&summaryCounts{}, &summaryCounts{}}, + } + s.init(s) // Init self-collection. + return s + } + s := &summary{ desc: desc, @@ -382,6 +382,116 @@ func (s *summary) swapBufs(now time.Time) { } } +type summaryCounts struct { + // sumBits contains the bits of the float64 representing the sum of all + // observations. sumBits and count have to go first in the struct to + // guarantee alignment for atomic operations. + // http://golang.org/pkg/sync/atomic/#pkg-note-BUG + sumBits uint64 + count uint64 +} + +type noObjectivesSummary struct { + // countAndHotIdx enables lock-free writes with use of atomic updates. + // The most significant bit is the hot index [0 or 1] of the count field + // below. Observe calls update the hot one. All remaining bits count the + // number of Observe calls. Observe starts by incrementing this counter, + // and finish by incrementing the count field in the respective + // summaryCounts, as a marker for completion. + // + // Calls of the Write method (which are non-mutating reads from the + // perspective of the summary) swap the hot–cold under the writeMtx + // lock. A cooldown is awaited (while locked) by comparing the number of + // observations with the initiation count. Once they match, then the + // last observation on the now cool one has completed. All cool fields must + // be merged into the new hot before releasing writeMtx. + + // Fields with atomic access first! See alignment constraint: + // http://golang.org/pkg/sync/atomic/#pkg-note-BUG + countAndHotIdx uint64 + + selfCollector + desc *Desc + writeMtx sync.Mutex // Only used in the Write method. + + // Two counts, one is "hot" for lock-free observations, the other is + // "cold" for writing out a dto.Metric. It has to be an array of + // pointers to guarantee 64bit alignment of the histogramCounts, see + // http://golang.org/pkg/sync/atomic/#pkg-note-BUG. + counts [2]*summaryCounts + + labelPairs []*dto.LabelPair +} + +func (s *noObjectivesSummary) Desc() *Desc { + return s.desc +} + +func (s *noObjectivesSummary) Observe(v float64) { + // We increment h.countAndHotIdx so that the counter in the lower + // 63 bits gets incremented. At the same time, we get the new value + // back, which we can use to find the currently-hot counts. + n := atomic.AddUint64(&s.countAndHotIdx, 1) + hotCounts := s.counts[n>>63] + + for { + oldBits := atomic.LoadUint64(&hotCounts.sumBits) + newBits := math.Float64bits(math.Float64frombits(oldBits) + v) + if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) { + break + } + } + // Increment count last as we take it as a signal that the observation + // is complete. + atomic.AddUint64(&hotCounts.count, 1) +} + +func (s *noObjectivesSummary) Write(out *dto.Metric) error { + // For simplicity, we protect this whole method by a mutex. It is not in + // the hot path, i.e. Observe is called much more often than Write. The + // complication of making Write lock-free isn't worth it, if possible at + // all. + s.writeMtx.Lock() + defer s.writeMtx.Unlock() + + // Adding 1<<63 switches the hot index (from 0 to 1 or from 1 to 0) + // without touching the count bits. See the struct comments for a full + // description of the algorithm. + n := atomic.AddUint64(&s.countAndHotIdx, 1<<63) + // count is contained unchanged in the lower 63 bits. + count := n & ((1 << 63) - 1) + // The most significant bit tells us which counts is hot. The complement + // is thus the cold one. + hotCounts := s.counts[n>>63] + coldCounts := s.counts[(^n)>>63] + + // Await cooldown. + for count != atomic.LoadUint64(&coldCounts.count) { + runtime.Gosched() // Let observations get work done. + } + + sum := &dto.Summary{ + SampleCount: proto.Uint64(count), + SampleSum: proto.Float64(math.Float64frombits(atomic.LoadUint64(&coldCounts.sumBits))), + } + + out.Summary = sum + out.Label = s.labelPairs + + // Finally add all the cold counts to the new hot counts and reset the cold counts. + atomic.AddUint64(&hotCounts.count, count) + atomic.StoreUint64(&coldCounts.count, 0) + for { + oldBits := atomic.LoadUint64(&hotCounts.sumBits) + newBits := math.Float64bits(math.Float64frombits(oldBits) + sum.GetSampleSum()) + if atomic.CompareAndSwapUint64(&hotCounts.sumBits, oldBits, newBits) { + atomic.StoreUint64(&coldCounts.sumBits, 0) + break + } + } + return nil +} + type quantSort []*dto.Quantile func (s quantSort) Len() int { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/wrap.go b/vendor/github.com/prometheus/client_golang/prometheus/wrap.go index 49159bf3..e303eef6 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/wrap.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/wrap.go @@ -32,6 +32,12 @@ import ( // WrapRegistererWith provides a way to add fixed labels to a subset of // Collectors. It should not be used to add fixed labels to all metrics exposed. // +// Conflicts between Collectors registered through the original Registerer with +// Collectors registered through the wrapping Registerer will still be +// detected. Any AlreadyRegisteredError returned by the Register method of +// either Registerer will contain the ExistingCollector in the form it was +// provided to the respective registry. +// // The Collector example demonstrates a use of WrapRegistererWith. func WrapRegistererWith(labels Labels, reg Registerer) Registerer { return &wrappingRegisterer{ @@ -54,6 +60,12 @@ func WrapRegistererWith(labels Labels, reg Registerer) Registerer { // (see NewGoCollector) and the process collector (see NewProcessCollector). (In // fact, those metrics are already prefixed with “go_” or “process_”, // respectively.) +// +// Conflicts between Collectors registered through the original Registerer with +// Collectors registered through the wrapping Registerer will still be +// detected. Any AlreadyRegisteredError returned by the Register method of +// either Registerer will contain the ExistingCollector in the form it was +// provided to the respective registry. func WrapRegistererWithPrefix(prefix string, reg Registerer) Registerer { return &wrappingRegisterer{ wrappedRegisterer: reg, @@ -123,6 +135,15 @@ func (c *wrappingCollector) Describe(ch chan<- *Desc) { } } +func (c *wrappingCollector) unwrapRecursively() Collector { + switch wc := c.wrappedCollector.(type) { + case *wrappingCollector: + return wc.unwrapRecursively() + default: + return wc + } +} + type wrappingMetric struct { wrappedMetric Metric prefix string diff --git a/vendor/github.com/prometheus/common/model/time.go b/vendor/github.com/prometheus/common/model/time.go index 46259b1f..7b0064fd 100644 --- a/vendor/github.com/prometheus/common/model/time.go +++ b/vendor/github.com/prometheus/common/model/time.go @@ -150,7 +150,13 @@ func (t *Time) UnmarshalJSON(b []byte) error { return err } - *t = Time(v + va) + // If the value was something like -0.1 the negative is lost in the + // parsing because of the leading zero, this ensures that we capture it. + if len(p[0]) > 0 && p[0][0] == '-' && v+va > 0 { + *t = Time(v+va) * -1 + } else { + *t = Time(v + va) + } default: return fmt.Errorf("invalid time %q", string(b)) diff --git a/vendor/github.com/prometheus/procfs/.golangci.yml b/vendor/github.com/prometheus/procfs/.golangci.yml new file mode 100644 index 00000000..438ca92e --- /dev/null +++ b/vendor/github.com/prometheus/procfs/.golangci.yml @@ -0,0 +1,6 @@ +# Run only staticcheck for now. Additional linters will be enabled one-by-one. +linters: + enable: + - staticcheck + - govet + disable-all: true diff --git a/vendor/github.com/prometheus/procfs/MAINTAINERS.md b/vendor/github.com/prometheus/procfs/MAINTAINERS.md index f1d3b993..56ba67d3 100644 --- a/vendor/github.com/prometheus/procfs/MAINTAINERS.md +++ b/vendor/github.com/prometheus/procfs/MAINTAINERS.md @@ -1,2 +1,2 @@ -* Tobias Schmidt @grobie * Johannes 'fish' Ziemke @discordianfish +* Paul Gier @pgier diff --git a/vendor/github.com/prometheus/procfs/Makefile b/vendor/github.com/prometheus/procfs/Makefile index 947d7d8f..616a0d25 100644 --- a/vendor/github.com/prometheus/procfs/Makefile +++ b/vendor/github.com/prometheus/procfs/Makefile @@ -14,17 +14,16 @@ include Makefile.common %/.unpacked: %.ttar + @echo ">> extracting fixtures" ./ttar -C $(dir $*) -x -f $*.ttar touch $@ -update_fixtures: fixtures.ttar sysfs/fixtures.ttar - -%fixtures.ttar: %/fixtures - rm -v $(dir $*)fixtures/.unpacked - ./ttar -C $(dir $*) -c -f $*fixtures.ttar fixtures/ +update_fixtures: + rm -vf fixtures/.unpacked + ./ttar -c -f fixtures.ttar fixtures/ .PHONY: build build: .PHONY: test -test: fixtures/.unpacked sysfs/fixtures/.unpacked common-test +test: fixtures/.unpacked common-test diff --git a/vendor/github.com/prometheus/procfs/Makefile.common b/vendor/github.com/prometheus/procfs/Makefile.common index 741579e6..d7aea1b8 100644 --- a/vendor/github.com/prometheus/procfs/Makefile.common +++ b/vendor/github.com/prometheus/procfs/Makefile.common @@ -29,12 +29,15 @@ GO ?= go GOFMT ?= $(GO)fmt FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH))) GOOPTS ?= +GOHOSTOS ?= $(shell $(GO) env GOHOSTOS) +GOHOSTARCH ?= $(shell $(GO) env GOHOSTARCH) GO_VERSION ?= $(shell $(GO) version) GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION)) PRE_GO_111 ?= $(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(10|[0-9])\.') -unexport GOVENDOR +GOVENDOR := +GO111MODULE := ifeq (, $(PRE_GO_111)) ifneq (,$(wildcard go.mod)) # Enforce Go modules support just in case the directory is inside GOPATH (and for Travis CI). @@ -55,32 +58,58 @@ $(warning Some recipes may not work as expected as the current Go runtime is '$( # This repository isn't using Go modules (yet). GOVENDOR := $(FIRST_GOPATH)/bin/govendor endif - - unexport GO111MODULE endif PROMU := $(FIRST_GOPATH)/bin/promu -STATICCHECK := $(FIRST_GOPATH)/bin/staticcheck pkgs = ./... -GO_VERSION ?= $(shell $(GO) version) -GO_BUILD_PLATFORM ?= $(subst /,-,$(lastword $(GO_VERSION))) +ifeq (arm, $(GOHOSTARCH)) + GOHOSTARM ?= $(shell GOARM= $(GO) env GOARM) + GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH)v$(GOHOSTARM) +else + GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH) +endif -PROMU_VERSION ?= 0.2.0 +PROMU_VERSION ?= 0.4.0 PROMU_URL := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz +GOLANGCI_LINT := +GOLANGCI_LINT_OPTS ?= +GOLANGCI_LINT_VERSION ?= v1.16.0 +# golangci-lint only supports linux, darwin and windows platforms on i386/amd64. +# windows isn't included here because of the path separator being different. +ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin)) + ifeq ($(GOHOSTARCH),$(filter $(GOHOSTARCH),amd64 i386)) + GOLANGCI_LINT := $(FIRST_GOPATH)/bin/golangci-lint + endif +endif + PREFIX ?= $(shell pwd) BIN_DIR ?= $(shell pwd) DOCKER_IMAGE_TAG ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD)) +DOCKERFILE_PATH ?= ./ DOCKER_REPO ?= prom -.PHONY: all -all: precheck style staticcheck unused build test +DOCKER_ARCHS ?= amd64 + +BUILD_DOCKER_ARCHS = $(addprefix common-docker-,$(DOCKER_ARCHS)) +PUBLISH_DOCKER_ARCHS = $(addprefix common-docker-publish-,$(DOCKER_ARCHS)) +TAG_DOCKER_ARCHS = $(addprefix common-docker-tag-latest-,$(DOCKER_ARCHS)) + +ifeq ($(GOHOSTARCH),amd64) + ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux freebsd darwin windows)) + # Only supported on amd64 + test-flags := -race + endif +endif # This rule is used to forward a target like "build" to "common-build". This # allows a new "build" target to be defined in a Makefile which includes this # one and override "common-build" without override warnings. %: common-% ; +.PHONY: common-all +common-all: precheck style check_license lint unused build test + .PHONY: common-style common-style: @echo ">> checking code style" @@ -102,6 +131,15 @@ common-check_license: exit 1; \ fi +.PHONY: common-deps +common-deps: + @echo ">> getting dependencies" +ifdef GO111MODULE + GO111MODULE=$(GO111MODULE) $(GO) mod download +else + $(GO) get $(GOOPTS) -t ./... +endif + .PHONY: common-test-short common-test-short: @echo ">> running short tests" @@ -110,26 +148,35 @@ common-test-short: .PHONY: common-test common-test: @echo ">> running all tests" - GO111MODULE=$(GO111MODULE) $(GO) test -race $(GOOPTS) $(pkgs) + GO111MODULE=$(GO111MODULE) $(GO) test $(test-flags) $(GOOPTS) $(pkgs) .PHONY: common-format common-format: @echo ">> formatting code" - GO111MODULE=$(GO111MODULE) $(GO) fmt $(GOOPTS) $(pkgs) + GO111MODULE=$(GO111MODULE) $(GO) fmt $(pkgs) .PHONY: common-vet common-vet: @echo ">> vetting code" GO111MODULE=$(GO111MODULE) $(GO) vet $(GOOPTS) $(pkgs) -.PHONY: common-staticcheck -common-staticcheck: $(STATICCHECK) - @echo ">> running staticcheck" +.PHONY: common-lint +common-lint: $(GOLANGCI_LINT) +ifdef GOLANGCI_LINT + @echo ">> running golangci-lint" ifdef GO111MODULE - GO111MODULE=$(GO111MODULE) $(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" -checks "SA*" $(pkgs) +# 'go list' needs to be executed before staticcheck to prepopulate the modules cache. +# Otherwise staticcheck might fail randomly for some reason not yet explained. + GO111MODULE=$(GO111MODULE) $(GO) list -e -compiled -test=true -export=false -deps=true -find=false -tags= -- ./... > /dev/null + GO111MODULE=$(GO111MODULE) $(GOLANGCI_LINT) run $(GOLANGCI_LINT_OPTS) $(pkgs) else - $(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" $(pkgs) + $(GOLANGCI_LINT) run $(pkgs) endif +endif + +# For backward-compatibility. +.PHONY: common-staticcheck +common-staticcheck: lint .PHONY: common-unused common-unused: $(GOVENDOR) @@ -140,8 +187,9 @@ else ifdef GO111MODULE @echo ">> running check for unused/missing packages in go.mod" GO111MODULE=$(GO111MODULE) $(GO) mod tidy +ifeq (,$(wildcard vendor)) @git diff --exit-code -- go.sum go.mod -ifneq (,$(wildcard vendor)) +else @echo ">> running check for unused packages in vendor/" GO111MODULE=$(GO111MODULE) $(GO) mod vendor @git diff --exit-code -- go.sum go.mod vendor/ @@ -159,45 +207,50 @@ common-tarball: promu @echo ">> building release tarball" $(PROMU) tarball --prefix $(PREFIX) $(BIN_DIR) -.PHONY: common-docker -common-docker: - docker build -t "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" . - -.PHONY: common-docker-publish -common-docker-publish: - docker push "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)" - -.PHONY: common-docker-tag-latest -common-docker-tag-latest: - docker tag "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):latest" +.PHONY: common-docker $(BUILD_DOCKER_ARCHS) +common-docker: $(BUILD_DOCKER_ARCHS) +$(BUILD_DOCKER_ARCHS): common-docker-%: + docker build -t "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" \ + --build-arg ARCH="$*" \ + --build-arg OS="linux" \ + $(DOCKERFILE_PATH) + +.PHONY: common-docker-publish $(PUBLISH_DOCKER_ARCHS) +common-docker-publish: $(PUBLISH_DOCKER_ARCHS) +$(PUBLISH_DOCKER_ARCHS): common-docker-publish-%: + docker push "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" + +.PHONY: common-docker-tag-latest $(TAG_DOCKER_ARCHS) +common-docker-tag-latest: $(TAG_DOCKER_ARCHS) +$(TAG_DOCKER_ARCHS): common-docker-tag-latest-%: + docker tag "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:$(DOCKER_IMAGE_TAG)" "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$*:latest" + +.PHONY: common-docker-manifest +common-docker-manifest: + DOCKER_CLI_EXPERIMENTAL=enabled docker manifest create -a "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" $(foreach ARCH,$(DOCKER_ARCHS),$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)-linux-$(ARCH):$(DOCKER_IMAGE_TAG)) + DOCKER_CLI_EXPERIMENTAL=enabled docker manifest push "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" .PHONY: promu promu: $(PROMU) $(PROMU): - curl -s -L $(PROMU_URL) | tar -xvz -C /tmp - mkdir -v -p $(FIRST_GOPATH)/bin - cp -v /tmp/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM)/promu $(PROMU) + $(eval PROMU_TMP := $(shell mktemp -d)) + curl -s -L $(PROMU_URL) | tar -xvzf - -C $(PROMU_TMP) + mkdir -p $(FIRST_GOPATH)/bin + cp $(PROMU_TMP)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM)/promu $(FIRST_GOPATH)/bin/promu + rm -r $(PROMU_TMP) .PHONY: proto proto: @echo ">> generating code from proto files" @./scripts/genproto.sh -.PHONY: $(STATICCHECK) -$(STATICCHECK): -ifdef GO111MODULE -# Get staticcheck from a temporary directory to avoid modifying the local go.{mod,sum}. -# See https://github.com/golang/go/issues/27643. -# For now, we are using the next branch of staticcheck because master isn't compatible yet with Go modules. - tmpModule=$$(mktemp -d 2>&1) && \ - mkdir -p $${tmpModule}/staticcheck && \ - cd "$${tmpModule}"/staticcheck && \ - GO111MODULE=on $(GO) mod init example.com/staticcheck && \ - GO111MODULE=on GOOS= GOARCH= $(GO) get -u honnef.co/go/tools/cmd/staticcheck@next && \ - rm -rf $${tmpModule}; -else - GOOS= GOARCH= GO111MODULE=off $(GO) get -u honnef.co/go/tools/cmd/staticcheck +ifdef GOLANGCI_LINT +$(GOLANGCI_LINT): + mkdir -p $(FIRST_GOPATH)/bin + curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/$(GOLANGCI_LINT_VERSION)/install.sh \ + | sed -e '/install -d/d' \ + | sh -s -- -b $(FIRST_GOPATH)/bin $(GOLANGCI_LINT_VERSION) endif ifdef GOVENDOR @@ -212,7 +265,6 @@ precheck:: define PRECHECK_COMMAND_template = precheck:: $(1)_precheck - PRECHECK_COMMAND_$(1) ?= $(1) $$(strip $$(PRECHECK_OPTIONS_$(1))) .PHONY: $(1)_precheck $(1)_precheck: diff --git a/vendor/github.com/prometheus/procfs/README.md b/vendor/github.com/prometheus/procfs/README.md index 20954947..6f8850fe 100644 --- a/vendor/github.com/prometheus/procfs/README.md +++ b/vendor/github.com/prometheus/procfs/README.md @@ -1,7 +1,7 @@ # procfs This procfs package provides functions to retrieve system, kernel and process -metrics from the pseudo-filesystem proc. +metrics from the pseudo-filesystems /proc and /sys. *WARNING*: This package is a work in progress. Its API may still break in backwards-incompatible ways without warnings. Use it at your own risk. @@ -9,3 +9,45 @@ backwards-incompatible ways without warnings. Use it at your own risk. [![GoDoc](https://godoc.org/github.com/prometheus/procfs?status.png)](https://godoc.org/github.com/prometheus/procfs) [![Build Status](https://travis-ci.org/prometheus/procfs.svg?branch=master)](https://travis-ci.org/prometheus/procfs) [![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/procfs)](https://goreportcard.com/report/github.com/prometheus/procfs) + +## Usage + +The procfs library is organized by packages based on whether the gathered data is coming from +/proc, /sys, or both. Each package contains an `FS` type which represents the path to either /proc, /sys, or both. For example, current cpu statistics are gathered from +`/proc/stat` and are available via the root procfs package. First, the proc filesystem mount +point is initialized, and then the stat information is read. + +```go +fs, err := procfs.NewFS("/proc") +stats, err := fs.Stat() +``` + +Some sub-packages such as `blockdevice`, require access to both the proc and sys filesystems. + +```go + fs, err := blockdevice.NewFS("/proc", "/sys") + stats, err := fs.ProcDiskstats() +``` + +## Building and Testing + +The procfs library is normally built as part of another application. However, when making +changes to the library, the `make test` command can be used to run the API test suite. + +### Updating Test Fixtures + +The procfs library includes a set of test fixtures which include many example files from +the `/proc` and `/sys` filesystems. These fixtures are included as a [ttar](https://github.com/ideaship/ttar) file +which is extracted automatically during testing. To add/update the test fixtures, first +ensure the `fixtures` directory is up to date by removing the existing directory and then +extracting the ttar file using `make fixtures/.unpacked` or just `make test`. + +```bash +rm -rf fixtures +make test +``` + +Next, make the required changes to the extracted files in the `fixtures` directory. When +the changes are complete, run `make update_fixtures` to create a new `fixtures.ttar` file +based on the updated `fixtures` directory. And finally, verify the changes using +`git diff fixtures.ttar`. diff --git a/vendor/github.com/prometheus/procfs/buddyinfo.go b/vendor/github.com/prometheus/procfs/buddyinfo.go index d3a82680..63d4229a 100644 --- a/vendor/github.com/prometheus/procfs/buddyinfo.go +++ b/vendor/github.com/prometheus/procfs/buddyinfo.go @@ -31,19 +31,9 @@ type BuddyInfo struct { Sizes []float64 } -// NewBuddyInfo reads the buddyinfo statistics. -func NewBuddyInfo() ([]BuddyInfo, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return nil, err - } - - return fs.NewBuddyInfo() -} - // NewBuddyInfo reads the buddyinfo statistics from the specified `proc` filesystem. -func (fs FS) NewBuddyInfo() ([]BuddyInfo, error) { - file, err := os.Open(fs.Path("buddyinfo")) +func (fs FS) BuddyInfo() ([]BuddyInfo, error) { + file, err := os.Open(fs.proc.Path("buddyinfo")) if err != nil { return nil, err } diff --git a/vendor/github.com/prometheus/procfs/fixtures.ttar b/vendor/github.com/prometheus/procfs/fixtures.ttar index 13c831ef..6b42e7ba 100644 --- a/vendor/github.com/prometheus/procfs/fixtures.ttar +++ b/vendor/github.com/prometheus/procfs/fixtures.ttar @@ -1,45 +1,53 @@ # Archive created by ttar -c -f fixtures.ttar fixtures/ Directory: fixtures -Mode: 755 +Mode: 775 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Directory: fixtures/proc +Mode: 775 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Directory: fixtures/26231 +Directory: fixtures/proc/26231 Mode: 755 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Path: fixtures/26231/cmdline +Path: fixtures/proc/26231/cmdline Lines: 1 vimNULLBYTEtest.goNULLBYTE+10NULLBYTEEOF Mode: 644 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Path: fixtures/26231/comm +Path: fixtures/proc/26231/comm Lines: 1 vim Mode: 644 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Path: fixtures/26231/cwd +Path: fixtures/proc/26231/cwd SymlinkTo: /usr/bin # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Path: fixtures/26231/exe +Path: fixtures/proc/26231/environ +Lines: 1 +PATH=/go/bin:/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/binNULLBYTEHOSTNAME=cd24e11f73a5NULLBYTETERM=xtermNULLBYTEGOLANG_VERSION=1.12.5NULLBYTEGOPATH=/goNULLBYTEHOME=/rootNULLBYTEEOF +Mode: 644 +# ttar - 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"fmt" - "os" - "path" - - "github.com/prometheus/procfs/nfs" - "github.com/prometheus/procfs/xfs" + "github.com/prometheus/procfs/internal/fs" ) -// FS represents the pseudo-filesystem proc, which provides an interface to +// FS represents the pseudo-filesystem sys, which provides an interface to // kernel data structures. -type FS string - -// DefaultMountPoint is the common mount point of the proc filesystem. -const DefaultMountPoint = "/proc" - -// NewFS returns a new FS mounted under the given mountPoint. It will error -// if the mount point can't be read. -func NewFS(mountPoint string) (FS, error) { - info, err := os.Stat(mountPoint) - if err != nil { - return "", fmt.Errorf("could not read %s: %s", mountPoint, err) - } - if !info.IsDir() { - return "", fmt.Errorf("mount point %s is not a directory", mountPoint) - } - - return FS(mountPoint), nil -} - -// Path returns the path of the given subsystem relative to the procfs root. -func (fs FS) Path(p ...string) string { - return path.Join(append([]string{string(fs)}, p...)...) +type FS struct { + proc fs.FS } -// XFSStats retrieves XFS filesystem runtime statistics. -func (fs FS) XFSStats() (*xfs.Stats, error) { - f, err := os.Open(fs.Path("fs/xfs/stat")) - if err != nil { - return nil, err - } - defer f.Close() - - return xfs.ParseStats(f) -} - -// NFSClientRPCStats retrieves NFS client RPC statistics. -func (fs FS) NFSClientRPCStats() (*nfs.ClientRPCStats, error) { - f, err := os.Open(fs.Path("net/rpc/nfs")) - if err != nil { - return nil, err - } - defer f.Close() +// DefaultMountPoint is the common mount point of the proc filesystem. +const DefaultMountPoint = fs.DefaultProcMountPoint - return nfs.ParseClientRPCStats(f) +// NewDefaultFS returns a new proc FS mounted under the default proc mountPoint. +// It will error if the mount point directory can't be read or is a file. +func NewDefaultFS() (FS, error) { + return NewFS(DefaultMountPoint) } -// NFSdServerRPCStats retrieves NFS daemon RPC statistics. -func (fs FS) NFSdServerRPCStats() (*nfs.ServerRPCStats, error) { - f, err := os.Open(fs.Path("net/rpc/nfsd")) +// NewFS returns a new proc FS mounted under the given proc mountPoint. It will error +// if the mount point directory can't be read or is a file. +func NewFS(mountPoint string) (FS, error) { + fs, err := fs.NewFS(mountPoint) if err != nil { - return nil, err + return FS{}, err } - defer f.Close() - - return nfs.ParseServerRPCStats(f) + return FS{fs}, nil } diff --git a/vendor/github.com/prometheus/procfs/go.mod b/vendor/github.com/prometheus/procfs/go.mod index e89ee6c9..b2f8cca9 100644 --- a/vendor/github.com/prometheus/procfs/go.mod +++ b/vendor/github.com/prometheus/procfs/go.mod @@ -1 +1,6 @@ module github.com/prometheus/procfs + +require ( + github.com/google/go-cmp v0.3.0 + golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 +) diff --git a/vendor/github.com/prometheus/procfs/go.sum b/vendor/github.com/prometheus/procfs/go.sum new file mode 100644 index 00000000..db54133d --- /dev/null +++ b/vendor/github.com/prometheus/procfs/go.sum @@ -0,0 +1,4 @@ +github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY= +github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw= +golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= diff --git a/vendor/github.com/prometheus/procfs/internal/fs/fs.go b/vendor/github.com/prometheus/procfs/internal/fs/fs.go new file mode 100644 index 00000000..7ddfd6b6 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/internal/fs/fs.go @@ -0,0 +1,55 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package fs + +import ( + "fmt" + "os" + "path/filepath" +) + +const ( + // DefaultProcMountPoint is the common mount point of the proc filesystem. + DefaultProcMountPoint = "/proc" + + // DefaultSysMountPoint is the common mount point of the sys filesystem. + DefaultSysMountPoint = "/sys" + + // DefaultConfigfsMountPoint is the commont mount point of the configfs + DefaultConfigfsMountPoint = "/sys/kernel/config" +) + +// FS represents a pseudo-filesystem, normally /proc or /sys, which provides an +// interface to kernel data structures. +type FS string + +// NewFS returns a new FS mounted under the given mountPoint. It will error +// if the mount point can't be read. +func NewFS(mountPoint string) (FS, error) { + info, err := os.Stat(mountPoint) + if err != nil { + return "", fmt.Errorf("could not read %s: %s", mountPoint, err) + } + if !info.IsDir() { + return "", fmt.Errorf("mount point %s is not a directory", mountPoint) + } + + return FS(mountPoint), nil +} + +// Path appends the given path elements to the filesystem path, adding separators +// as necessary. +func (fs FS) Path(p ...string) string { + return filepath.Join(append([]string{string(fs)}, p...)...) +} diff --git a/vendor/github.com/prometheus/procfs/internal/util/parse.go b/vendor/github.com/prometheus/procfs/internal/util/parse.go deleted file mode 100644 index ca74889a..00000000 --- a/vendor/github.com/prometheus/procfs/internal/util/parse.go +++ /dev/null @@ -1,73 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package util - -import ( - "io/ioutil" - "strconv" - "strings" -) - -// ParseUint32s parses a slice of strings into a slice of uint32s. -func ParseUint32s(ss []string) ([]uint32, error) { - us := make([]uint32, 0, len(ss)) - for _, s := range ss { - u, err := strconv.ParseUint(s, 10, 32) - if err != nil { - return nil, err - } - - us = append(us, uint32(u)) - } - - return us, nil -} - -// ParseUint64s parses a slice of strings into a slice of uint64s. -func ParseUint64s(ss []string) ([]uint64, error) { - us := make([]uint64, 0, len(ss)) - for _, s := range ss { - u, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return nil, err - } - - us = append(us, u) - } - - return us, nil -} - -// ReadUintFromFile reads a file and attempts to parse a uint64 from it. -func ReadUintFromFile(path string) (uint64, error) { - data, err := ioutil.ReadFile(path) - if err != nil { - return 0, err - } - return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64) -} - -// ParseBool parses a string into a boolean pointer. -func ParseBool(b string) *bool { - var truth bool - switch b { - case "enabled": - truth = true - case "disabled": - truth = false - default: - return nil - } - return &truth -} diff --git a/vendor/github.com/prometheus/procfs/internal/util/sysreadfile_linux.go b/vendor/github.com/prometheus/procfs/internal/util/sysreadfile_linux.go deleted file mode 100644 index df0d567b..00000000 --- a/vendor/github.com/prometheus/procfs/internal/util/sysreadfile_linux.go +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build !windows - -package util - -import ( - "bytes" - "os" - "syscall" -) - -// SysReadFile is a simplified ioutil.ReadFile that invokes syscall.Read directly. -// https://github.com/prometheus/node_exporter/pull/728/files -func SysReadFile(file string) (string, error) { - f, err := os.Open(file) - if err != nil { - return "", err - } - defer f.Close() - - // On some machines, hwmon drivers are broken and return EAGAIN. This causes - // Go's ioutil.ReadFile implementation to poll forever. - // - // Since we either want to read data or bail immediately, do the simplest - // possible read using syscall directly. - b := make([]byte, 128) - n, err := syscall.Read(int(f.Fd()), b) - if err != nil { - return "", err - } - - return string(bytes.TrimSpace(b[:n])), nil -} diff --git a/vendor/github.com/prometheus/procfs/ipvs.go b/vendor/github.com/prometheus/procfs/ipvs.go index e36d4a3b..2d6cb8d1 100644 --- a/vendor/github.com/prometheus/procfs/ipvs.go +++ b/vendor/github.com/prometheus/procfs/ipvs.go @@ -62,19 +62,9 @@ type IPVSBackendStatus struct { Weight uint64 } -// NewIPVSStats reads the IPVS statistics. -func NewIPVSStats() (IPVSStats, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return IPVSStats{}, err - } - - return fs.NewIPVSStats() -} - -// NewIPVSStats reads the IPVS statistics from the specified `proc` filesystem. -func (fs FS) NewIPVSStats() (IPVSStats, error) { - file, err := os.Open(fs.Path("net/ip_vs_stats")) +// IPVSStats reads the IPVS statistics from the specified `proc` filesystem. +func (fs FS) IPVSStats() (IPVSStats, error) { + file, err := os.Open(fs.proc.Path("net/ip_vs_stats")) if err != nil { return IPVSStats{}, err } @@ -131,19 +121,9 @@ func parseIPVSStats(file io.Reader) (IPVSStats, error) { return stats, nil } -// NewIPVSBackendStatus reads and returns the status of all (virtual,real) server pairs. -func NewIPVSBackendStatus() ([]IPVSBackendStatus, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return []IPVSBackendStatus{}, err - } - - return fs.NewIPVSBackendStatus() -} - -// NewIPVSBackendStatus reads and returns the status of all (virtual,real) server pairs from the specified `proc` filesystem. -func (fs FS) NewIPVSBackendStatus() ([]IPVSBackendStatus, error) { - file, err := os.Open(fs.Path("net/ip_vs")) +// IPVSBackendStatus reads and returns the status of all (virtual,real) server pairs from the specified `proc` filesystem. +func (fs FS) IPVSBackendStatus() ([]IPVSBackendStatus, error) { + file, err := os.Open(fs.proc.Path("net/ip_vs")) if err != nil { return nil, err } diff --git a/vendor/github.com/prometheus/procfs/mdstat.go b/vendor/github.com/prometheus/procfs/mdstat.go index 9dc19583..2af3ada1 100644 --- a/vendor/github.com/prometheus/procfs/mdstat.go +++ b/vendor/github.com/prometheus/procfs/mdstat.go @@ -22,8 +22,8 @@ import ( ) var ( - statuslineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) - buildlineRE = regexp.MustCompile(`\((\d+)/\d+\)`) + statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) + recoveryLineRE = regexp.MustCompile(`\((\d+)/\d+\)`) ) // MDStat holds info parsed from /proc/mdstat. @@ -34,117 +34,160 @@ type MDStat struct { ActivityState string // Number of active disks. DisksActive int64 - // Total number of disks the device consists of. + // Total number of disks the device requires. DisksTotal int64 + // Number of failed disks. + DisksFailed int64 + // Spare disks in the device. + DisksSpare int64 // Number of blocks the device holds. BlocksTotal int64 // Number of blocks on the device that are in sync. BlocksSynced int64 } -// ParseMDStat parses an mdstat-file and returns a struct with the relevant infos. -func (fs FS) ParseMDStat() (mdstates []MDStat, err error) { - mdStatusFilePath := fs.Path("mdstat") - content, err := ioutil.ReadFile(mdStatusFilePath) +// MDStat parses an mdstat-file (/proc/mdstat) and returns a slice of +// structs containing the relevant info. More information available here: +// https://raid.wiki.kernel.org/index.php/Mdstat +func (fs FS) MDStat() ([]MDStat, error) { + data, err := ioutil.ReadFile(fs.proc.Path("mdstat")) if err != nil { - return []MDStat{}, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) + return nil, fmt.Errorf("error parsing mdstat %s: %s", fs.proc.Path("mdstat"), err) } + mdstat, err := parseMDStat(data) + if err != nil { + return nil, fmt.Errorf("error parsing mdstat %s: %s", fs.proc.Path("mdstat"), err) + } + return mdstat, nil +} - mdStates := []MDStat{} - lines := strings.Split(string(content), "\n") - for i, l := range lines { - if l == "" { - continue - } - if l[0] == ' ' { - continue - } - if strings.HasPrefix(l, "Personalities") || strings.HasPrefix(l, "unused") { +// parseMDStat parses data from mdstat file (/proc/mdstat) and returns a slice of +// structs containing the relevant info. +func parseMDStat(mdStatData []byte) ([]MDStat, error) { + mdStats := []MDStat{} + lines := strings.Split(string(mdStatData), "\n") + + for i, line := range lines { + if strings.TrimSpace(line) == "" || line[0] == ' ' || + strings.HasPrefix(line, "Personalities") || + strings.HasPrefix(line, "unused") { continue } - mainLine := strings.Split(l, " ") - if len(mainLine) < 3 { - return mdStates, fmt.Errorf("error parsing mdline: %s", l) + deviceFields := strings.Fields(line) + if len(deviceFields) < 3 { + return nil, fmt.Errorf("not enough fields in mdline (expected at least 3): %s", line) } - mdName := mainLine[0] - activityState := mainLine[2] + mdName := deviceFields[0] // mdx + state := deviceFields[2] // active or inactive if len(lines) <= i+3 { - return mdStates, fmt.Errorf( - "error parsing %s: too few lines for md device %s", - mdStatusFilePath, + return nil, fmt.Errorf( + "error parsing %s: too few lines for md device", mdName, ) } - active, total, size, err := evalStatusline(lines[i+1]) + // Failed disks have the suffix (F) & Spare disks have the suffix (S). + fail := int64(strings.Count(line, "(F)")) + spare := int64(strings.Count(line, "(S)")) + active, total, size, err := evalStatusLine(lines[i], lines[i+1]) + if err != nil { - return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) + return nil, fmt.Errorf("error parsing md device lines: %s", err) } - // j is the line number of the syncing-line. - j := i + 2 + syncLineIdx := i + 2 if strings.Contains(lines[i+2], "bitmap") { // skip bitmap line - j = i + 3 + syncLineIdx++ } // If device is syncing at the moment, get the number of currently // synced bytes, otherwise that number equals the size of the device. syncedBlocks := size - if strings.Contains(lines[j], "recovery") || strings.Contains(lines[j], "resync") { - syncedBlocks, err = evalBuildline(lines[j]) - if err != nil { - return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) + recovering := strings.Contains(lines[syncLineIdx], "recovery") + resyncing := strings.Contains(lines[syncLineIdx], "resync") + + // Append recovery and resyncing state info. + if recovering || resyncing { + if recovering { + state = "recovering" + } else { + state = "resyncing" + } + + // Handle case when resync=PENDING or resync=DELAYED. + if strings.Contains(lines[syncLineIdx], "PENDING") || + strings.Contains(lines[syncLineIdx], "DELAYED") { + syncedBlocks = 0 + } else { + syncedBlocks, err = evalRecoveryLine(lines[syncLineIdx]) + if err != nil { + return nil, fmt.Errorf("error parsing sync line in md device %s: %s", mdName, err) + } } } - mdStates = append(mdStates, MDStat{ + mdStats = append(mdStats, MDStat{ Name: mdName, - ActivityState: activityState, + ActivityState: state, DisksActive: active, + DisksFailed: fail, + DisksSpare: spare, DisksTotal: total, BlocksTotal: size, BlocksSynced: syncedBlocks, }) } - return mdStates, nil + return mdStats, nil } -func evalStatusline(statusline string) (active, total, size int64, err error) { - matches := statuslineRE.FindStringSubmatch(statusline) - if len(matches) != 4 { - return 0, 0, 0, fmt.Errorf("unexpected statusline: %s", statusline) - } +func evalStatusLine(deviceLine, statusLine string) (active, total, size int64, err error) { - size, err = strconv.ParseInt(matches[1], 10, 64) + sizeStr := strings.Fields(statusLine)[0] + size, err = strconv.ParseInt(sizeStr, 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) + } + + if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") { + // In the device deviceLine, only disks have a number associated with them in []. + total = int64(strings.Count(deviceLine, "[")) + return total, total, size, nil + } + + if strings.Contains(deviceLine, "inactive") { + return 0, 0, size, nil + } + + matches := statusLineRE.FindStringSubmatch(statusLine) + if len(matches) != 4 { + return 0, 0, 0, fmt.Errorf("couldn't find all the substring matches: %s", statusLine) } total, err = strconv.ParseInt(matches[2], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) } active, err = strconv.ParseInt(matches[3], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) } return active, total, size, nil } -func evalBuildline(buildline string) (syncedBlocks int64, err error) { - matches := buildlineRE.FindStringSubmatch(buildline) +func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, err error) { + matches := recoveryLineRE.FindStringSubmatch(recoveryLine) if len(matches) != 2 { - return 0, fmt.Errorf("unexpected buildline: %s", buildline) + return 0, fmt.Errorf("unexpected recoveryLine: %s", recoveryLine) } syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64) if err != nil { - return 0, fmt.Errorf("%s in buildline: %s", err, buildline) + return 0, fmt.Errorf("%s in recoveryLine: %s", err, recoveryLine) } return syncedBlocks, nil diff --git a/vendor/github.com/prometheus/procfs/mountinfo.go b/vendor/github.com/prometheus/procfs/mountinfo.go new file mode 100644 index 00000000..61fa6188 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/mountinfo.go @@ -0,0 +1,178 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package procfs + +import ( + "bufio" + "fmt" + "io" + "os" + "strconv" + "strings" +) + +var validOptionalFields = map[string]bool{ + "shared": true, + "master": true, + "propagate_from": true, + "unbindable": true, +} + +// A MountInfo is a type that describes the details, options +// for each mount, parsed from /proc/self/mountinfo. +// The fields described in each entry of /proc/self/mountinfo +// is described in the following man page. +// http://man7.org/linux/man-pages/man5/proc.5.html +type MountInfo struct { + // Unique Id for the mount + MountId int + // The Id of the parent mount + ParentId int + // The value of `st_dev` for the files on this FS + MajorMinorVer string + // The pathname of the directory in the FS that forms + // the root for this mount + Root string + // The pathname of the mount point relative to the root + MountPoint string + // Mount options + Options map[string]string + // Zero or more optional fields + OptionalFields map[string]string + // The Filesystem type + FSType string + // FS specific information or "none" + Source string + // Superblock options + SuperOptions map[string]string +} + +// Returns part of the mountinfo line, if it exists, else an empty string. +func getStringSliceElement(parts []string, idx int, defaultValue string) string { + if idx >= len(parts) { + return defaultValue + } + return parts[idx] +} + +// Reads each line of the mountinfo file, and returns a list of formatted MountInfo structs. +func parseMountInfo(r io.Reader) ([]*MountInfo, error) { + mounts := []*MountInfo{} + scanner := bufio.NewScanner(r) + for scanner.Scan() { + mountString := scanner.Text() + parsedMounts, err := parseMountInfoString(mountString) + if err != nil { + return nil, err + } + mounts = append(mounts, parsedMounts) + } + + err := scanner.Err() + return mounts, err +} + +// Parses a mountinfo file line, and converts it to a MountInfo struct. +// An important check here is to see if the hyphen separator, as if it does not exist, +// it means that the line is malformed. +func parseMountInfoString(mountString string) (*MountInfo, error) { + var err error + + // OptionalFields can be zero, hence these checks to ensure we do not populate the wrong values in the wrong spots + separatorIndex := strings.Index(mountString, "-") + if separatorIndex == -1 { + return nil, fmt.Errorf("no separator found in mountinfo string: %s", mountString) + } + beforeFields := strings.Fields(mountString[:separatorIndex]) + afterFields := strings.Fields(mountString[separatorIndex+1:]) + if (len(beforeFields) + len(afterFields)) < 7 { + return nil, fmt.Errorf("too few fields") + } + + mount := &MountInfo{ + MajorMinorVer: getStringSliceElement(beforeFields, 2, ""), + Root: getStringSliceElement(beforeFields, 3, ""), + MountPoint: getStringSliceElement(beforeFields, 4, ""), + Options: mountOptionsParser(getStringSliceElement(beforeFields, 5, "")), + OptionalFields: nil, + FSType: getStringSliceElement(afterFields, 0, ""), + Source: getStringSliceElement(afterFields, 1, ""), + SuperOptions: mountOptionsParser(getStringSliceElement(afterFields, 2, "")), + } + + mount.MountId, err = strconv.Atoi(getStringSliceElement(beforeFields, 0, "")) + if err != nil { + return nil, fmt.Errorf("failed to parse mount ID") + } + mount.ParentId, err = strconv.Atoi(getStringSliceElement(beforeFields, 1, "")) + if err != nil { + return nil, fmt.Errorf("failed to parse parent ID") + } + // Has optional fields, which is a space separated list of values. + // Example: shared:2 master:7 + if len(beforeFields) > 6 { + mount.OptionalFields = make(map[string]string) + optionalFields := beforeFields[6:] + for _, field := range optionalFields { + optionSplit := strings.Split(field, ":") + target, value := optionSplit[0], "" + if len(optionSplit) == 2 { + value = optionSplit[1] + } + // Checks if the 'keys' in the optional fields in the mountinfo line are acceptable. + // Allowed 'keys' are shared, master, propagate_from, unbindable. + if _, ok := validOptionalFields[target]; ok { + mount.OptionalFields[target] = value + } + } + } + return mount, nil +} + +// Parses the mount options, superblock options. +func mountOptionsParser(mountOptions string) map[string]string { + opts := make(map[string]string) + options := strings.Split(mountOptions, ",") + for _, opt := range options { + splitOption := strings.Split(opt, "=") + if len(splitOption) < 2 { + key := splitOption[0] + opts[key] = "" + } else { + key, value := splitOption[0], splitOption[1] + opts[key] = value + } + } + return opts +} + +// Retrieves mountinfo information from `/proc/self/mountinfo`. +func GetMounts() ([]*MountInfo, error) { + f, err := os.Open("/proc/self/mountinfo") + if err != nil { + return nil, err + } + defer f.Close() + return parseMountInfo(f) +} + +// Retrieves mountinfo information from a processes' `/proc//mountinfo`. +func GetProcMounts(pid int) ([]*MountInfo, error) { + f, err := os.Open(fmt.Sprintf("/proc/%d/mountinfo", pid)) + if err != nil { + return nil, err + } + defer f.Close() + return parseMountInfo(f) +} diff --git a/vendor/github.com/prometheus/procfs/mountstats.go b/vendor/github.com/prometheus/procfs/mountstats.go index fc385afc..35b2ef35 100644 --- a/vendor/github.com/prometheus/procfs/mountstats.go +++ b/vendor/github.com/prometheus/procfs/mountstats.go @@ -69,8 +69,8 @@ type MountStats interface { type MountStatsNFS struct { // The version of statistics provided. StatVersion string - // The optional mountaddr of the NFS mount. - MountAddress string + // The mount options of the NFS mount. + Opts map[string]string // The age of the NFS mount. Age time.Duration // Statistics related to byte counters for various operations. @@ -181,11 +181,11 @@ type NFSOperationStats struct { // Number of bytes received for this operation, including RPC headers and payload. BytesReceived uint64 // Duration all requests spent queued for transmission before they were sent. - CumulativeQueueTime time.Duration + CumulativeQueueMilliseconds uint64 // Duration it took to get a reply back after the request was transmitted. - CumulativeTotalResponseTime time.Duration + CumulativeTotalResponseMilliseconds uint64 // Duration from when a request was enqueued to when it was completely handled. - CumulativeTotalRequestTime time.Duration + CumulativeTotalRequestMilliseconds uint64 } // A NFSTransportStats contains statistics for the NFS mount RPC requests and @@ -204,7 +204,7 @@ type NFSTransportStats struct { // spent waiting for connections to the server to be established. ConnectIdleTime uint64 // Duration since the NFS mount last saw any RPC traffic. - IdleTime time.Duration + IdleTimeSeconds uint64 // Number of RPC requests for this mount sent to the NFS server. Sends uint64 // Number of RPC responses for this mount received from the NFS server. @@ -342,10 +342,15 @@ func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, e switch ss[0] { case fieldOpts: + if stats.Opts == nil { + stats.Opts = map[string]string{} + } for _, opt := range strings.Split(ss[1], ",") { split := strings.Split(opt, "=") - if len(split) == 2 && split[0] == "mountaddr" { - stats.MountAddress = split[1] + if len(split) == 2 { + stats.Opts[split[0]] = split[1] + } else { + stats.Opts[opt] = "" } } case fieldAge: @@ -519,15 +524,15 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) { } ops = append(ops, NFSOperationStats{ - Operation: strings.TrimSuffix(ss[0], ":"), - Requests: ns[0], - Transmissions: ns[1], - MajorTimeouts: ns[2], - BytesSent: ns[3], - BytesReceived: ns[4], - CumulativeQueueTime: time.Duration(ns[5]) * time.Millisecond, - CumulativeTotalResponseTime: time.Duration(ns[6]) * time.Millisecond, - CumulativeTotalRequestTime: time.Duration(ns[7]) * time.Millisecond, + Operation: strings.TrimSuffix(ss[0], ":"), + Requests: ns[0], + Transmissions: ns[1], + MajorTimeouts: ns[2], + BytesSent: ns[3], + BytesReceived: ns[4], + CumulativeQueueMilliseconds: ns[5], + CumulativeTotalResponseMilliseconds: ns[6], + CumulativeTotalRequestMilliseconds: ns[7], }) } @@ -603,7 +608,7 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats Bind: ns[1], Connect: ns[2], ConnectIdleTime: ns[3], - IdleTime: time.Duration(ns[4]) * time.Second, + IdleTimeSeconds: ns[4], Sends: ns[5], Receives: ns[6], BadTransactionIDs: ns[7], diff --git a/vendor/github.com/prometheus/procfs/net_dev.go b/vendor/github.com/prometheus/procfs/net_dev.go index 3f252337..a0b7a011 100644 --- a/vendor/github.com/prometheus/procfs/net_dev.go +++ b/vendor/github.com/prometheus/procfs/net_dev.go @@ -47,23 +47,13 @@ type NetDevLine struct { // are interface names. type NetDev map[string]NetDevLine -// NewNetDev returns kernel/system statistics read from /proc/net/dev. -func NewNetDev() (NetDev, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return nil, err - } - - return fs.NewNetDev() -} - -// NewNetDev returns kernel/system statistics read from /proc/net/dev. -func (fs FS) NewNetDev() (NetDev, error) { - return newNetDev(fs.Path("net/dev")) +// NetDev returns kernel/system statistics read from /proc/net/dev. +func (fs FS) NetDev() (NetDev, error) { + return newNetDev(fs.proc.Path("net/dev")) } -// NewNetDev returns kernel/system statistics read from /proc/[pid]/net/dev. -func (p Proc) NewNetDev() (NetDev, error) { +// NetDev returns kernel/system statistics read from /proc/[pid]/net/dev. +func (p Proc) NetDev() (NetDev, error) { return newNetDev(p.path("net/dev")) } @@ -75,7 +65,7 @@ func newNetDev(file string) (NetDev, error) { } defer f.Close() - nd := NetDev{} + netDev := NetDev{} s := bufio.NewScanner(f) for n := 0; s.Scan(); n++ { // Skip the 2 header lines. @@ -83,20 +73,20 @@ func newNetDev(file string) (NetDev, error) { continue } - line, err := nd.parseLine(s.Text()) + line, err := netDev.parseLine(s.Text()) if err != nil { - return nd, err + return netDev, err } - nd[line.Name] = *line + netDev[line.Name] = *line } - return nd, s.Err() + return netDev, s.Err() } // parseLine parses a single line from the /proc/net/dev file. Header lines // must be filtered prior to calling this method. -func (nd NetDev) parseLine(rawLine string) (*NetDevLine, error) { +func (netDev NetDev) parseLine(rawLine string) (*NetDevLine, error) { parts := strings.SplitN(rawLine, ":", 2) if len(parts) != 2 { return nil, errors.New("invalid net/dev line, missing colon") @@ -185,11 +175,11 @@ func (nd NetDev) parseLine(rawLine string) (*NetDevLine, error) { // Total aggregates the values across interfaces and returns a new NetDevLine. // The Name field will be a sorted comma separated list of interface names. -func (nd NetDev) Total() NetDevLine { +func (netDev NetDev) Total() NetDevLine { total := NetDevLine{} - names := make([]string, 0, len(nd)) - for _, ifc := range nd { + names := make([]string, 0, len(netDev)) + for _, ifc := range netDev { names = append(names, ifc.Name) total.RxBytes += ifc.RxBytes total.RxPackets += ifc.RxPackets diff --git a/vendor/github.com/prometheus/procfs/net_unix.go b/vendor/github.com/prometheus/procfs/net_unix.go new file mode 100644 index 00000000..240340a8 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/net_unix.go @@ -0,0 +1,275 @@ +// Copyright 2018 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package procfs + +import ( + "bufio" + "errors" + "fmt" + "io" + "os" + "strconv" + "strings" +) + +// For the proc file format details, +// see https://elixir.bootlin.com/linux/v4.17/source/net/unix/af_unix.c#L2815 +// and https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/net.h#L48. + +const ( + netUnixKernelPtrIdx = iota + netUnixRefCountIdx + _ + netUnixFlagsIdx + netUnixTypeIdx + netUnixStateIdx + netUnixInodeIdx + + // Inode and Path are optional. + netUnixStaticFieldsCnt = 6 +) + +const ( + netUnixTypeStream = 1 + netUnixTypeDgram = 2 + netUnixTypeSeqpacket = 5 + + netUnixFlagListen = 1 << 16 + + netUnixStateUnconnected = 1 + netUnixStateConnecting = 2 + netUnixStateConnected = 3 + netUnixStateDisconnected = 4 +) + +var errInvalidKernelPtrFmt = errors.New("Invalid Num(the kernel table slot number) format") + +// NetUnixType is the type of the type field. +type NetUnixType uint64 + +// NetUnixFlags is the type of the flags field. +type NetUnixFlags uint64 + +// NetUnixState is the type of the state field. +type NetUnixState uint64 + +// NetUnixLine represents a line of /proc/net/unix. +type NetUnixLine struct { + KernelPtr string + RefCount uint64 + Protocol uint64 + Flags NetUnixFlags + Type NetUnixType + State NetUnixState + Inode uint64 + Path string +} + +// NetUnix holds the data read from /proc/net/unix. +type NetUnix struct { + Rows []*NetUnixLine +} + +// NewNetUnix returns data read from /proc/net/unix. +func NewNetUnix() (*NetUnix, error) { + fs, err := NewFS(DefaultMountPoint) + if err != nil { + return nil, err + } + + return fs.NewNetUnix() +} + +// NewNetUnix returns data read from /proc/net/unix. +func (fs FS) NewNetUnix() (*NetUnix, error) { + return NewNetUnixByPath(fs.proc.Path("net/unix")) +} + +// NewNetUnixByPath returns data read from /proc/net/unix by file path. +// It might returns an error with partial parsed data, if an error occur after some data parsed. +func NewNetUnixByPath(path string) (*NetUnix, error) { + f, err := os.Open(path) + if err != nil { + return nil, err + } + defer f.Close() + return NewNetUnixByReader(f) +} + +// NewNetUnixByReader returns data read from /proc/net/unix by a reader. +// It might returns an error with partial parsed data, if an error occur after some data parsed. +func NewNetUnixByReader(reader io.Reader) (*NetUnix, error) { + nu := &NetUnix{ + Rows: make([]*NetUnixLine, 0, 32), + } + scanner := bufio.NewScanner(reader) + // Omit the header line. + scanner.Scan() + header := scanner.Text() + // From the man page of proc(5), it does not contain an Inode field, + // but in actually it exists. + // This code works for both cases. + hasInode := strings.Contains(header, "Inode") + + minFieldsCnt := netUnixStaticFieldsCnt + if hasInode { + minFieldsCnt++ + } + for scanner.Scan() { + line := scanner.Text() + item, err := nu.parseLine(line, hasInode, minFieldsCnt) + if err != nil { + return nu, err + } + nu.Rows = append(nu.Rows, item) + } + + return nu, scanner.Err() +} + +func (u *NetUnix) parseLine(line string, hasInode bool, minFieldsCnt int) (*NetUnixLine, error) { + fields := strings.Fields(line) + fieldsLen := len(fields) + if fieldsLen < minFieldsCnt { + return nil, fmt.Errorf( + "Parse Unix domain failed: expect at least %d fields but got %d", + minFieldsCnt, fieldsLen) + } + kernelPtr, err := u.parseKernelPtr(fields[netUnixKernelPtrIdx]) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain num(%s) failed: %s", fields[netUnixKernelPtrIdx], err) + } + users, err := u.parseUsers(fields[netUnixRefCountIdx]) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain ref count(%s) failed: %s", fields[netUnixRefCountIdx], err) + } + flags, err := u.parseFlags(fields[netUnixFlagsIdx]) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain flags(%s) failed: %s", fields[netUnixFlagsIdx], err) + } + typ, err := u.parseType(fields[netUnixTypeIdx]) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain type(%s) failed: %s", fields[netUnixTypeIdx], err) + } + state, err := u.parseState(fields[netUnixStateIdx]) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain state(%s) failed: %s", fields[netUnixStateIdx], err) + } + var inode uint64 + if hasInode { + inodeStr := fields[netUnixInodeIdx] + inode, err = u.parseInode(inodeStr) + if err != nil { + return nil, fmt.Errorf("Parse Unix domain inode(%s) failed: %s", inodeStr, err) + } + } + + nuLine := &NetUnixLine{ + KernelPtr: kernelPtr, + RefCount: users, + Type: typ, + Flags: flags, + State: state, + Inode: inode, + } + + // Path field is optional. + if fieldsLen > minFieldsCnt { + pathIdx := netUnixInodeIdx + 1 + if !hasInode { + pathIdx-- + } + nuLine.Path = fields[pathIdx] + } + + return nuLine, nil +} + +func (u NetUnix) parseKernelPtr(str string) (string, error) { + if !strings.HasSuffix(str, ":") { + return "", errInvalidKernelPtrFmt + } + return str[:len(str)-1], nil +} + +func (u NetUnix) parseUsers(hexStr string) (uint64, error) { + return strconv.ParseUint(hexStr, 16, 32) +} + +func (u NetUnix) parseProtocol(hexStr string) (uint64, error) { + return strconv.ParseUint(hexStr, 16, 32) +} + +func (u NetUnix) parseType(hexStr string) (NetUnixType, error) { + typ, err := strconv.ParseUint(hexStr, 16, 16) + if err != nil { + return 0, err + } + return NetUnixType(typ), nil +} + +func (u NetUnix) parseFlags(hexStr string) (NetUnixFlags, error) { + flags, err := strconv.ParseUint(hexStr, 16, 32) + if err != nil { + return 0, err + } + return NetUnixFlags(flags), nil +} + +func (u NetUnix) parseState(hexStr string) (NetUnixState, error) { + st, err := strconv.ParseInt(hexStr, 16, 8) + if err != nil { + return 0, err + } + return NetUnixState(st), nil +} + +func (u NetUnix) parseInode(inodeStr string) (uint64, error) { + return strconv.ParseUint(inodeStr, 10, 64) +} + +func (t NetUnixType) String() string { + switch t { + case netUnixTypeStream: + return "stream" + case netUnixTypeDgram: + return "dgram" + case netUnixTypeSeqpacket: + return "seqpacket" + } + return "unknown" +} + +func (f NetUnixFlags) String() string { + switch f { + case netUnixFlagListen: + return "listen" + default: + return "default" + } +} + +func (s NetUnixState) String() string { + switch s { + case netUnixStateUnconnected: + return "unconnected" + case netUnixStateConnecting: + return "connecting" + case netUnixStateConnected: + return "connected" + case netUnixStateDisconnected: + return "disconnected" + } + return "unknown" +} diff --git a/vendor/github.com/prometheus/procfs/nfs/nfs.go b/vendor/github.com/prometheus/procfs/nfs/nfs.go deleted file mode 100644 index 651bf681..00000000 --- a/vendor/github.com/prometheus/procfs/nfs/nfs.go +++ /dev/null @@ -1,263 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package nfs implements parsing of /proc/net/rpc/nfsd. -// Fields are documented in https://www.svennd.be/nfsd-stats-explained-procnetrpcnfsd/ -package nfs - -// ReplyCache models the "rc" line. -type ReplyCache struct { - Hits uint64 - Misses uint64 - NoCache uint64 -} - -// FileHandles models the "fh" line. -type FileHandles struct { - Stale uint64 - TotalLookups uint64 - AnonLookups uint64 - DirNoCache uint64 - NoDirNoCache uint64 -} - -// InputOutput models the "io" line. -type InputOutput struct { - Read uint64 - Write uint64 -} - -// Threads models the "th" line. -type Threads struct { - Threads uint64 - FullCnt uint64 -} - -// ReadAheadCache models the "ra" line. -type ReadAheadCache struct { - CacheSize uint64 - CacheHistogram []uint64 - NotFound uint64 -} - -// Network models the "net" line. -type Network struct { - NetCount uint64 - UDPCount uint64 - TCPCount uint64 - TCPConnect uint64 -} - -// ClientRPC models the nfs "rpc" line. -type ClientRPC struct { - RPCCount uint64 - Retransmissions uint64 - AuthRefreshes uint64 -} - -// ServerRPC models the nfsd "rpc" line. -type ServerRPC struct { - RPCCount uint64 - BadCnt uint64 - BadFmt uint64 - BadAuth uint64 - BadcInt uint64 -} - -// V2Stats models the "proc2" line. -type V2Stats struct { - Null uint64 - GetAttr uint64 - SetAttr uint64 - Root uint64 - Lookup uint64 - ReadLink uint64 - Read uint64 - WrCache uint64 - Write uint64 - Create uint64 - Remove uint64 - Rename uint64 - Link uint64 - SymLink uint64 - MkDir uint64 - RmDir uint64 - ReadDir uint64 - FsStat uint64 -} - -// V3Stats models the "proc3" line. -type V3Stats struct { - Null uint64 - GetAttr uint64 - SetAttr uint64 - Lookup uint64 - Access uint64 - ReadLink uint64 - Read uint64 - Write uint64 - Create uint64 - MkDir uint64 - SymLink uint64 - MkNod uint64 - Remove uint64 - RmDir uint64 - Rename uint64 - Link uint64 - ReadDir uint64 - ReadDirPlus uint64 - FsStat uint64 - FsInfo uint64 - PathConf uint64 - Commit uint64 -} - -// ClientV4Stats models the nfs "proc4" line. -type ClientV4Stats struct { - Null uint64 - Read uint64 - Write uint64 - Commit uint64 - Open uint64 - OpenConfirm uint64 - OpenNoattr uint64 - OpenDowngrade uint64 - Close uint64 - Setattr uint64 - FsInfo uint64 - Renew uint64 - SetClientID uint64 - SetClientIDConfirm uint64 - Lock uint64 - Lockt uint64 - Locku uint64 - Access uint64 - Getattr uint64 - Lookup uint64 - LookupRoot uint64 - Remove uint64 - Rename uint64 - Link uint64 - Symlink uint64 - Create uint64 - Pathconf uint64 - StatFs uint64 - ReadLink uint64 - ReadDir uint64 - ServerCaps uint64 - DelegReturn uint64 - GetACL uint64 - SetACL uint64 - FsLocations uint64 - ReleaseLockowner uint64 - Secinfo uint64 - FsidPresent uint64 - ExchangeID uint64 - CreateSession uint64 - DestroySession uint64 - Sequence uint64 - GetLeaseTime uint64 - ReclaimComplete uint64 - LayoutGet uint64 - GetDeviceInfo uint64 - LayoutCommit uint64 - LayoutReturn uint64 - SecinfoNoName uint64 - TestStateID uint64 - FreeStateID uint64 - GetDeviceList uint64 - BindConnToSession uint64 - DestroyClientID uint64 - Seek uint64 - Allocate uint64 - DeAllocate uint64 - LayoutStats uint64 - Clone uint64 -} - -// ServerV4Stats models the nfsd "proc4" line. -type ServerV4Stats struct { - Null uint64 - Compound uint64 -} - -// V4Ops models the "proc4ops" line: NFSv4 operations -// Variable list, see: -// v4.0 https://tools.ietf.org/html/rfc3010 (38 operations) -// v4.1 https://tools.ietf.org/html/rfc5661 (58 operations) -// v4.2 https://tools.ietf.org/html/draft-ietf-nfsv4-minorversion2-41 (71 operations) -type V4Ops struct { - //Values uint64 // Variable depending on v4.x sub-version. TODO: Will this always at least include the fields in this struct? - Op0Unused uint64 - Op1Unused uint64 - Op2Future uint64 - Access uint64 - Close uint64 - Commit uint64 - Create uint64 - DelegPurge uint64 - DelegReturn uint64 - GetAttr uint64 - GetFH uint64 - Link uint64 - Lock uint64 - Lockt uint64 - Locku uint64 - Lookup uint64 - LookupRoot uint64 - Nverify uint64 - Open uint64 - OpenAttr uint64 - OpenConfirm uint64 - OpenDgrd uint64 - PutFH uint64 - PutPubFH uint64 - PutRootFH uint64 - Read uint64 - ReadDir uint64 - ReadLink uint64 - Remove uint64 - Rename uint64 - Renew uint64 - RestoreFH uint64 - SaveFH uint64 - SecInfo uint64 - SetAttr uint64 - Verify uint64 - Write uint64 - RelLockOwner uint64 -} - -// ClientRPCStats models all stats from /proc/net/rpc/nfs. -type ClientRPCStats struct { - Network Network - ClientRPC ClientRPC - V2Stats V2Stats - V3Stats V3Stats - ClientV4Stats ClientV4Stats -} - -// ServerRPCStats models all stats from /proc/net/rpc/nfsd. -type ServerRPCStats struct { - ReplyCache ReplyCache - FileHandles FileHandles - InputOutput InputOutput - Threads Threads - ReadAheadCache ReadAheadCache - Network Network - ServerRPC ServerRPC - V2Stats V2Stats - V3Stats V3Stats - ServerV4Stats ServerV4Stats - V4Ops V4Ops -} diff --git a/vendor/github.com/prometheus/procfs/nfs/parse.go b/vendor/github.com/prometheus/procfs/nfs/parse.go deleted file mode 100644 index 95a83cc5..00000000 --- a/vendor/github.com/prometheus/procfs/nfs/parse.go +++ /dev/null @@ -1,317 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package nfs - -import ( - "fmt" -) - -func parseReplyCache(v []uint64) (ReplyCache, error) { - if len(v) != 3 { - return ReplyCache{}, fmt.Errorf("invalid ReplyCache line %q", v) - } - - return ReplyCache{ - Hits: v[0], - Misses: v[1], - NoCache: v[2], - }, nil -} - -func parseFileHandles(v []uint64) (FileHandles, error) { - if len(v) != 5 { - return FileHandles{}, fmt.Errorf("invalid FileHandles, line %q", v) - } - - return FileHandles{ - Stale: v[0], - TotalLookups: v[1], - AnonLookups: v[2], - DirNoCache: v[3], - NoDirNoCache: v[4], - }, nil -} - -func parseInputOutput(v []uint64) (InputOutput, error) { - if len(v) != 2 { - return InputOutput{}, fmt.Errorf("invalid InputOutput line %q", v) - } - - return InputOutput{ - Read: v[0], - Write: v[1], - }, nil -} - -func parseThreads(v []uint64) (Threads, error) { - if len(v) != 2 { - return Threads{}, fmt.Errorf("invalid Threads line %q", v) - } - - return Threads{ - Threads: v[0], - FullCnt: v[1], - }, nil -} - -func parseReadAheadCache(v []uint64) (ReadAheadCache, error) { - if len(v) != 12 { - return ReadAheadCache{}, fmt.Errorf("invalid ReadAheadCache line %q", v) - } - - return ReadAheadCache{ - CacheSize: v[0], - CacheHistogram: v[1:11], - NotFound: v[11], - }, nil -} - -func parseNetwork(v []uint64) (Network, error) { - if len(v) != 4 { - return Network{}, fmt.Errorf("invalid Network line %q", v) - } - - return Network{ - NetCount: v[0], - UDPCount: v[1], - TCPCount: v[2], - TCPConnect: v[3], - }, nil -} - -func parseServerRPC(v []uint64) (ServerRPC, error) { - if len(v) != 5 { - return ServerRPC{}, fmt.Errorf("invalid RPC line %q", v) - } - - return ServerRPC{ - RPCCount: v[0], - BadCnt: v[1], - BadFmt: v[2], - BadAuth: v[3], - BadcInt: v[4], - }, nil -} - -func parseClientRPC(v []uint64) (ClientRPC, error) { - if len(v) != 3 { - return ClientRPC{}, fmt.Errorf("invalid RPC line %q", v) - } - - return ClientRPC{ - RPCCount: v[0], - Retransmissions: v[1], - AuthRefreshes: v[2], - }, nil -} - -func parseV2Stats(v []uint64) (V2Stats, error) { - values := int(v[0]) - if len(v[1:]) != values || values != 18 { - return V2Stats{}, fmt.Errorf("invalid V2Stats line %q", v) - } - - return V2Stats{ - Null: v[1], - GetAttr: v[2], - SetAttr: v[3], - Root: v[4], - Lookup: v[5], - ReadLink: v[6], - Read: v[7], - WrCache: v[8], - Write: v[9], - Create: v[10], - Remove: v[11], - Rename: v[12], - Link: v[13], - SymLink: v[14], - MkDir: v[15], - RmDir: v[16], - ReadDir: v[17], - FsStat: v[18], - }, nil -} - -func parseV3Stats(v []uint64) (V3Stats, error) { - values := int(v[0]) - if len(v[1:]) != values || values != 22 { - return V3Stats{}, fmt.Errorf("invalid V3Stats line %q", v) - } - - return V3Stats{ - Null: v[1], - GetAttr: v[2], - SetAttr: v[3], - Lookup: v[4], - Access: v[5], - ReadLink: v[6], - Read: v[7], - Write: v[8], - Create: v[9], - MkDir: v[10], - SymLink: v[11], - MkNod: v[12], - Remove: v[13], - RmDir: v[14], - Rename: v[15], - Link: v[16], - ReadDir: v[17], - ReadDirPlus: v[18], - FsStat: v[19], - FsInfo: v[20], - PathConf: v[21], - Commit: v[22], - }, nil -} - -func parseClientV4Stats(v []uint64) (ClientV4Stats, error) { - values := int(v[0]) - if len(v[1:]) != values { - return ClientV4Stats{}, fmt.Errorf("invalid ClientV4Stats line %q", v) - } - - // This function currently supports mapping 59 NFS v4 client stats. Older - // kernels may emit fewer stats, so we must detect this and pad out the - // values to match the expected slice size. - if values < 59 { - newValues := make([]uint64, 60) - copy(newValues, v) - v = newValues - } - - return ClientV4Stats{ - Null: v[1], - Read: v[2], - Write: v[3], - Commit: v[4], - Open: v[5], - OpenConfirm: v[6], - OpenNoattr: v[7], - OpenDowngrade: v[8], - Close: v[9], - Setattr: v[10], - FsInfo: v[11], - Renew: v[12], - SetClientID: v[13], - SetClientIDConfirm: v[14], - Lock: v[15], - Lockt: v[16], - Locku: v[17], - Access: v[18], - Getattr: v[19], - Lookup: v[20], - LookupRoot: v[21], - Remove: v[22], - Rename: v[23], - Link: v[24], - Symlink: v[25], - Create: v[26], - Pathconf: v[27], - StatFs: v[28], - ReadLink: v[29], - ReadDir: v[30], - ServerCaps: v[31], - DelegReturn: v[32], - GetACL: v[33], - SetACL: v[34], - FsLocations: v[35], - ReleaseLockowner: v[36], - Secinfo: v[37], - FsidPresent: v[38], - ExchangeID: v[39], - CreateSession: v[40], - DestroySession: v[41], - Sequence: v[42], - GetLeaseTime: v[43], - ReclaimComplete: v[44], - LayoutGet: v[45], - GetDeviceInfo: v[46], - LayoutCommit: v[47], - LayoutReturn: v[48], - SecinfoNoName: v[49], - TestStateID: v[50], - FreeStateID: v[51], - GetDeviceList: v[52], - BindConnToSession: v[53], - DestroyClientID: v[54], - Seek: v[55], - Allocate: v[56], - DeAllocate: v[57], - LayoutStats: v[58], - Clone: v[59], - }, nil -} - -func parseServerV4Stats(v []uint64) (ServerV4Stats, error) { - values := int(v[0]) - if len(v[1:]) != values || values != 2 { - return ServerV4Stats{}, fmt.Errorf("invalid V4Stats line %q", v) - } - - return ServerV4Stats{ - Null: v[1], - Compound: v[2], - }, nil -} - -func parseV4Ops(v []uint64) (V4Ops, error) { - values := int(v[0]) - if len(v[1:]) != values || values < 39 { - return V4Ops{}, fmt.Errorf("invalid V4Ops line %q", v) - } - - stats := V4Ops{ - Op0Unused: v[1], - Op1Unused: v[2], - Op2Future: v[3], - Access: v[4], - Close: v[5], - Commit: v[6], - Create: v[7], - DelegPurge: v[8], - DelegReturn: v[9], - GetAttr: v[10], - GetFH: v[11], - Link: v[12], - Lock: v[13], - Lockt: v[14], - Locku: v[15], - Lookup: v[16], - LookupRoot: v[17], - Nverify: v[18], - Open: v[19], - OpenAttr: v[20], - OpenConfirm: v[21], - OpenDgrd: v[22], - PutFH: v[23], - PutPubFH: v[24], - PutRootFH: v[25], - Read: v[26], - ReadDir: v[27], - ReadLink: v[28], - Remove: v[29], - Rename: v[30], - Renew: v[31], - RestoreFH: v[32], - SaveFH: v[33], - SecInfo: v[34], - SetAttr: v[35], - Verify: v[36], - Write: v[37], - RelLockOwner: v[38], - } - - return stats, nil -} diff --git a/vendor/github.com/prometheus/procfs/nfs/parse_nfs.go b/vendor/github.com/prometheus/procfs/nfs/parse_nfs.go deleted file mode 100644 index c0d3a5ad..00000000 --- a/vendor/github.com/prometheus/procfs/nfs/parse_nfs.go +++ /dev/null @@ -1,67 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package nfs - -import ( - "bufio" - "fmt" - "io" - "strings" - - "github.com/prometheus/procfs/internal/util" -) - -// ParseClientRPCStats returns stats read from /proc/net/rpc/nfs -func ParseClientRPCStats(r io.Reader) (*ClientRPCStats, error) { - stats := &ClientRPCStats{} - - scanner := bufio.NewScanner(r) - for scanner.Scan() { - line := scanner.Text() - parts := strings.Fields(scanner.Text()) - // require at least - if len(parts) < 2 { - return nil, fmt.Errorf("invalid NFS metric line %q", line) - } - - values, err := util.ParseUint64s(parts[1:]) - if err != nil { - return nil, fmt.Errorf("error parsing NFS metric line: %s", err) - } - - switch metricLine := parts[0]; metricLine { - case "net": - stats.Network, err = parseNetwork(values) - case "rpc": - stats.ClientRPC, err = parseClientRPC(values) - case "proc2": - stats.V2Stats, err = parseV2Stats(values) - case "proc3": - stats.V3Stats, err = parseV3Stats(values) - case "proc4": - stats.ClientV4Stats, err = parseClientV4Stats(values) - default: - return nil, fmt.Errorf("unknown NFS metric line %q", metricLine) - } - if err != nil { - return nil, fmt.Errorf("errors parsing NFS metric line: %s", err) - } - } - - if err := scanner.Err(); err != nil { - return nil, fmt.Errorf("error scanning NFS file: %s", err) - } - - return stats, nil -} diff --git a/vendor/github.com/prometheus/procfs/nfs/parse_nfsd.go b/vendor/github.com/prometheus/procfs/nfs/parse_nfsd.go deleted file mode 100644 index 57bb4a35..00000000 --- a/vendor/github.com/prometheus/procfs/nfs/parse_nfsd.go +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package nfs - -import ( - "bufio" - "fmt" - "io" - "strings" - - "github.com/prometheus/procfs/internal/util" -) - -// ParseServerRPCStats returns stats read from /proc/net/rpc/nfsd -func ParseServerRPCStats(r io.Reader) (*ServerRPCStats, error) { - stats := &ServerRPCStats{} - - scanner := bufio.NewScanner(r) - for scanner.Scan() { - line := scanner.Text() - parts := strings.Fields(scanner.Text()) - // require at least - if len(parts) < 2 { - return nil, fmt.Errorf("invalid NFSd metric line %q", line) - } - label := parts[0] - - var values []uint64 - var err error - if label == "th" { - if len(parts) < 3 { - return nil, fmt.Errorf("invalid NFSd th metric line %q", line) - } - values, err = util.ParseUint64s(parts[1:3]) - } else { - values, err = util.ParseUint64s(parts[1:]) - } - if err != nil { - return nil, fmt.Errorf("error parsing NFSd metric line: %s", err) - } - - switch metricLine := parts[0]; metricLine { - case "rc": - stats.ReplyCache, err = parseReplyCache(values) - case "fh": - stats.FileHandles, err = parseFileHandles(values) - case "io": - stats.InputOutput, err = parseInputOutput(values) - case "th": - stats.Threads, err = parseThreads(values) - case "ra": - stats.ReadAheadCache, err = parseReadAheadCache(values) - case "net": - stats.Network, err = parseNetwork(values) - case "rpc": - stats.ServerRPC, err = parseServerRPC(values) - case "proc2": - stats.V2Stats, err = parseV2Stats(values) - case "proc3": - stats.V3Stats, err = parseV3Stats(values) - case "proc4": - stats.ServerV4Stats, err = parseServerV4Stats(values) - case "proc4ops": - stats.V4Ops, err = parseV4Ops(values) - default: - return nil, fmt.Errorf("unknown NFSd metric line %q", metricLine) - } - if err != nil { - return nil, fmt.Errorf("errors parsing NFSd metric line: %s", err) - } - } - - if err := scanner.Err(); err != nil { - return nil, fmt.Errorf("error scanning NFSd file: %s", err) - } - - return stats, nil -} diff --git a/vendor/github.com/prometheus/procfs/proc.go b/vendor/github.com/prometheus/procfs/proc.go index 06bed0ef..41c148d0 100644 --- a/vendor/github.com/prometheus/procfs/proc.go +++ b/vendor/github.com/prometheus/procfs/proc.go @@ -20,6 +20,8 @@ import ( "os" "strconv" "strings" + + "github.com/prometheus/procfs/internal/fs" ) // Proc provides information about a running process. @@ -27,7 +29,7 @@ type Proc struct { // The process ID. PID int - fs FS + fs fs.FS } // Procs represents a list of Proc structs. @@ -52,7 +54,7 @@ func NewProc(pid int) (Proc, error) { if err != nil { return Proc{}, err } - return fs.NewProc(pid) + return fs.Proc(pid) } // AllProcs returns a list of all currently available processes under /proc. @@ -66,28 +68,35 @@ func AllProcs() (Procs, error) { // Self returns a process for the current process. func (fs FS) Self() (Proc, error) { - p, err := os.Readlink(fs.Path("self")) + p, err := os.Readlink(fs.proc.Path("self")) if err != nil { return Proc{}, err } - pid, err := strconv.Atoi(strings.Replace(p, string(fs), "", -1)) + pid, err := strconv.Atoi(strings.Replace(p, string(fs.proc), "", -1)) if err != nil { return Proc{}, err } - return fs.NewProc(pid) + return fs.Proc(pid) } // NewProc returns a process for the given pid. +// +// Deprecated: use fs.Proc() instead func (fs FS) NewProc(pid int) (Proc, error) { - if _, err := os.Stat(fs.Path(strconv.Itoa(pid))); err != nil { + return fs.Proc(pid) +} + +// Proc returns a process for the given pid. +func (fs FS) Proc(pid int) (Proc, error) { + if _, err := os.Stat(fs.proc.Path(strconv.Itoa(pid))); err != nil { return Proc{}, err } - return Proc{PID: pid, fs: fs}, nil + return Proc{PID: pid, fs: fs.proc}, nil } // AllProcs returns a list of all currently available processes. func (fs FS) AllProcs() (Procs, error) { - d, err := os.Open(fs.Path()) + d, err := os.Open(fs.proc.Path()) if err != nil { return Procs{}, err } @@ -104,7 +113,7 @@ func (fs FS) AllProcs() (Procs, error) { if err != nil { continue } - p = append(p, Proc{PID: int(pid), fs: fs}) + p = append(p, Proc{PID: int(pid), fs: fs.proc}) } return p, nil @@ -238,6 +247,20 @@ func (p Proc) MountStats() ([]*Mount, error) { return parseMountStats(f) } +// MountInfo retrieves mount information for mount points in a +// process's namespace. +// It supplies information missing in `/proc/self/mounts` and +// fixes various other problems with that file too. +func (p Proc) MountInfo() ([]*MountInfo, error) { + f, err := os.Open(p.path("mountinfo")) + if err != nil { + return nil, err + } + defer f.Close() + + return parseMountInfo(f) +} + func (p Proc) fileDescriptors() ([]string, error) { d, err := os.Open(p.path("fd")) if err != nil { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_pre_1_8.go b/vendor/github.com/prometheus/procfs/proc_environ.go similarity index 50% rename from vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_pre_1_8.go rename to vendor/github.com/prometheus/procfs/proc_environ.go index 8bb9b8b6..7172bb58 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_pre_1_8.go +++ b/vendor/github.com/prometheus/procfs/proc_environ.go @@ -1,4 +1,4 @@ -// Copyright 2017 The Prometheus Authors +// Copyright 2019 The Prometheus Authors // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at @@ -11,34 +11,33 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build !go1.8 - -package promhttp +package procfs import ( - "io" - "net/http" + "io/ioutil" + "os" + "strings" ) -func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator { - d := &responseWriterDelegator{ - ResponseWriter: w, - observeWriteHeader: observeWriteHeaderFunc, - } +// Environ reads process environments from /proc//environ +func (p Proc) Environ() ([]string, error) { + environments := make([]string, 0) - id := 0 - if _, ok := w.(http.CloseNotifier); ok { - id += closeNotifier - } - if _, ok := w.(http.Flusher); ok { - id += flusher + f, err := os.Open(p.path("environ")) + if err != nil { + return environments, err } - if _, ok := w.(http.Hijacker); ok { - id += hijacker + defer f.Close() + + data, err := ioutil.ReadAll(f) + if err != nil { + return environments, err } - if _, ok := w.(io.ReaderFrom); ok { - id += readerFrom + + environments = strings.Split(string(data), "\000") + if len(environments) > 0 { + environments = environments[:len(environments)-1] } - return pickDelegator[id](d) + return environments, nil } diff --git a/vendor/github.com/prometheus/procfs/proc_io.go b/vendor/github.com/prometheus/procfs/proc_io.go index 0251c83b..0ff89b1c 100644 --- a/vendor/github.com/prometheus/procfs/proc_io.go +++ b/vendor/github.com/prometheus/procfs/proc_io.go @@ -39,8 +39,8 @@ type ProcIO struct { CancelledWriteBytes int64 } -// NewIO creates a new ProcIO instance from a given Proc instance. -func (p Proc) NewIO() (ProcIO, error) { +// IO creates a new ProcIO instance from a given Proc instance. +func (p Proc) IO() (ProcIO, error) { pio := ProcIO{} f, err := os.Open(p.path("io")) diff --git a/vendor/github.com/prometheus/procfs/proc_limits.go b/vendor/github.com/prometheus/procfs/proc_limits.go index f04ba6fd..91ee24df 100644 --- a/vendor/github.com/prometheus/procfs/proc_limits.go +++ b/vendor/github.com/prometheus/procfs/proc_limits.go @@ -78,7 +78,14 @@ var ( ) // NewLimits returns the current soft limits of the process. +// +// Deprecated: use p.Limits() instead func (p Proc) NewLimits() (ProcLimits, error) { + return p.Limits() +} + +// Limits returns the current soft limits of the process. +func (p Proc) Limits() (ProcLimits, error) { f, err := os.Open(p.path("limits")) if err != nil { return ProcLimits{}, err diff --git a/vendor/github.com/prometheus/procfs/proc_ns.go b/vendor/github.com/prometheus/procfs/proc_ns.go index d06c26eb..c66740ff 100644 --- a/vendor/github.com/prometheus/procfs/proc_ns.go +++ b/vendor/github.com/prometheus/procfs/proc_ns.go @@ -29,9 +29,9 @@ type Namespace struct { // Namespaces contains all of the namespaces that the process is contained in. type Namespaces map[string]Namespace -// NewNamespaces reads from /proc/[pid/ns/* to get the namespaces of which the +// Namespaces reads from /proc//ns/* to get the namespaces of which the // process is a member. -func (p Proc) NewNamespaces() (Namespaces, error) { +func (p Proc) Namespaces() (Namespaces, error) { d, err := os.Open(p.path("ns")) if err != nil { return nil, err diff --git a/vendor/github.com/prometheus/procfs/proc_psi.go b/vendor/github.com/prometheus/procfs/proc_psi.go new file mode 100644 index 00000000..46fe2662 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/proc_psi.go @@ -0,0 +1,101 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package procfs + +// The PSI / pressure interface is described at +// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/accounting/psi.txt +// Each resource (cpu, io, memory, ...) is exposed as a single file. +// Each file may contain up to two lines, one for "some" pressure and one for "full" pressure. +// Each line contains several averages (over n seconds) and a total in µs. +// +// Example io pressure file: +// > some avg10=0.06 avg60=0.21 avg300=0.99 total=8537362 +// > full avg10=0.00 avg60=0.13 avg300=0.96 total=8183134 + +import ( + "fmt" + "io" + "io/ioutil" + "os" + "strings" +) + +const lineFormat = "avg10=%f avg60=%f avg300=%f total=%d" + +// PSILine is a single line of values as returned by /proc/pressure/* +// The Avg entries are averages over n seconds, as a percentage +// The Total line is in microseconds +type PSILine struct { + Avg10 float64 + Avg60 float64 + Avg300 float64 + Total uint64 +} + +// PSIStats represent pressure stall information from /proc/pressure/* +// Some indicates the share of time in which at least some tasks are stalled +// Full indicates the share of time in which all non-idle tasks are stalled simultaneously +type PSIStats struct { + Some *PSILine + Full *PSILine +} + +// PSIStatsForResource reads pressure stall information for the specified +// resource from /proc/pressure/. At time of writing this can be +// either "cpu", "memory" or "io". +func (fs FS) PSIStatsForResource(resource string) (PSIStats, error) { + file, err := os.Open(fs.proc.Path(fmt.Sprintf("%s/%s", "pressure", resource))) + if err != nil { + return PSIStats{}, fmt.Errorf("psi_stats: unavailable for %s", resource) + } + + defer file.Close() + return parsePSIStats(resource, file) +} + +// parsePSIStats parses the specified file for pressure stall information +func parsePSIStats(resource string, file io.Reader) (PSIStats, error) { + psiStats := PSIStats{} + stats, err := ioutil.ReadAll(file) + if err != nil { + return psiStats, fmt.Errorf("psi_stats: unable to read data for %s", resource) + } + + for _, l := range strings.Split(string(stats), "\n") { + prefix := strings.Split(l, " ")[0] + switch prefix { + case "some": + psi := PSILine{} + _, err := fmt.Sscanf(l, fmt.Sprintf("some %s", lineFormat), &psi.Avg10, &psi.Avg60, &psi.Avg300, &psi.Total) + if err != nil { + return PSIStats{}, err + } + psiStats.Some = &psi + case "full": + psi := PSILine{} + _, err := fmt.Sscanf(l, fmt.Sprintf("full %s", lineFormat), &psi.Avg10, &psi.Avg60, &psi.Avg300, &psi.Total) + if err != nil { + return PSIStats{}, err + } + psiStats.Full = &psi + default: + // If we encounter a line with an unknown prefix, ignore it and move on + // Should new measurement types be added in the future we'll simply ignore them instead + // of erroring on retrieval + continue + } + } + + return psiStats, nil +} diff --git a/vendor/github.com/prometheus/procfs/proc_stat.go b/vendor/github.com/prometheus/procfs/proc_stat.go index e7c626a8..dbde1fa0 100644 --- a/vendor/github.com/prometheus/procfs/proc_stat.go +++ b/vendor/github.com/prometheus/procfs/proc_stat.go @@ -18,6 +18,8 @@ import ( "fmt" "io/ioutil" "os" + + "github.com/prometheus/procfs/internal/fs" ) // Originally, this USER_HZ value was dynamically retrieved via a sysconf call @@ -99,11 +101,18 @@ type ProcStat struct { // Resident set size in pages. RSS int - fs FS + proc fs.FS } // NewStat returns the current status information of the process. +// +// Deprecated: use p.Stat() instead func (p Proc) NewStat() (ProcStat, error) { + return p.Stat() +} + +// Stat returns the current status information of the process. +func (p Proc) Stat() (ProcStat, error) { f, err := os.Open(p.path("stat")) if err != nil { return ProcStat{}, err @@ -118,7 +127,7 @@ func (p Proc) NewStat() (ProcStat, error) { var ( ignore int - s = ProcStat{PID: p.PID, fs: p.fs} + s = ProcStat{PID: p.PID, proc: p.fs} l = bytes.Index(data, []byte("(")) r = bytes.LastIndex(data, []byte(")")) ) @@ -175,7 +184,8 @@ func (s ProcStat) ResidentMemory() int { // StartTime returns the unix timestamp of the process in seconds. func (s ProcStat) StartTime() (float64, error) { - stat, err := s.fs.NewStat() + fs := FS{proc: s.proc} + stat, err := fs.Stat() if err != nil { return 0, err } diff --git a/vendor/github.com/prometheus/procfs/proc_status.go b/vendor/github.com/prometheus/procfs/proc_status.go new file mode 100644 index 00000000..6b4b61f7 --- /dev/null +++ b/vendor/github.com/prometheus/procfs/proc_status.go @@ -0,0 +1,162 @@ +// Copyright 2018 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package procfs + +import ( + "bytes" + "io/ioutil" + "os" + "strconv" + "strings" +) + +// ProcStat provides status information about the process, +// read from /proc/[pid]/stat. +type ProcStatus struct { + // The process ID. + PID int + // The process name. + Name string + + // Peak virtual memory size. + VmPeak uint64 + // Virtual memory size. + VmSize uint64 + // Locked memory size. + VmLck uint64 + // Pinned memory size. + VmPin uint64 + // Peak resident set size. + VmHWM uint64 + // Resident set size (sum of RssAnnon RssFile and RssShmem). + VmRSS uint64 + // Size of resident anonymous memory. + RssAnon uint64 + // Size of resident file mappings. + RssFile uint64 + // Size of resident shared memory. + RssShmem uint64 + // Size of data segments. + VmData uint64 + // Size of stack segments. + VmStk uint64 + // Size of text segments. + VmExe uint64 + // Shared library code size. + VmLib uint64 + // Page table entries size. + VmPTE uint64 + // Size of second-level page tables. + VmPMD uint64 + // Swapped-out virtual memory size by anonymous private. + VmSwap uint64 + // Size of hugetlb memory portions + HugetlbPages uint64 + + // Number of voluntary context switches. + VoluntaryCtxtSwitches uint64 + // Number of involuntary context switches. + NonVoluntaryCtxtSwitches uint64 +} + +// NewStatus returns the current status information of the process. +func (p Proc) NewStatus() (ProcStatus, error) { + f, err := os.Open(p.path("status")) + if err != nil { + return ProcStatus{}, err + } + defer f.Close() + + data, err := ioutil.ReadAll(f) + if err != nil { + return ProcStatus{}, err + } + + s := ProcStatus{PID: p.PID} + + lines := strings.Split(string(data), "\n") + for _, line := range lines { + if !bytes.Contains([]byte(line), []byte(":")) { + continue + } + + kv := strings.SplitN(line, ":", 2) + + // removes spaces + k := string(strings.TrimSpace(kv[0])) + v := string(strings.TrimSpace(kv[1])) + // removes "kB" + v = string(bytes.Trim([]byte(v), " kB")) + + // value to int when possible + // we can skip error check here, 'cause vKBytes is not used when value is a string + vKBytes, _ := strconv.ParseUint(v, 10, 64) + // convert kB to B + vBytes := vKBytes * 1024 + + s.fillStatus(k, v, vKBytes, vBytes) + } + + return s, nil +} + +func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintBytes uint64) { + switch k { + case "Name": + s.Name = vString + case "VmPeak": + s.VmPeak = vUintBytes + case "VmSize": + s.VmSize = vUintBytes + case "VmLck": + s.VmLck = vUintBytes + case "VmPin": + s.VmPin = vUintBytes + case "VmHWM": + s.VmHWM = vUintBytes + case "VmRSS": + s.VmRSS = vUintBytes + case "RssAnon": + s.RssAnon = vUintBytes + case "RssFile": + s.RssFile = vUintBytes + case "RssShmem": + s.RssShmem = vUintBytes + case "VmData": + s.VmData = vUintBytes + case "VmStk": + s.VmStk = vUintBytes + case "VmExe": + s.VmExe = vUintBytes + case "VmLib": + s.VmLib = vUintBytes + case "VmPTE": + s.VmPTE = vUintBytes + case "VmPMD": + s.VmPMD = vUintBytes + case "VmSwap": + s.VmSwap = vUintBytes + case "HugetlbPages": + s.HugetlbPages = vUintBytes + case "voluntary_ctxt_switches": + s.VoluntaryCtxtSwitches = vUint + case "nonvoluntary_ctxt_switches": + s.NonVoluntaryCtxtSwitches = vUint + } +} + +// TotalCtxtSwitches returns the total context switch. +func (s ProcStatus) TotalCtxtSwitches() uint64 { + return s.VoluntaryCtxtSwitches + s.NonVoluntaryCtxtSwitches +} diff --git a/vendor/github.com/prometheus/procfs/stat.go b/vendor/github.com/prometheus/procfs/stat.go index 61eb6b0e..6661ee03 100644 --- a/vendor/github.com/prometheus/procfs/stat.go +++ b/vendor/github.com/prometheus/procfs/stat.go @@ -20,6 +20,8 @@ import ( "os" "strconv" "strings" + + "github.com/prometheus/procfs/internal/fs" ) // CPUStat shows how much time the cpu spend in various stages. @@ -78,16 +80,6 @@ type Stat struct { SoftIRQ SoftIRQStat } -// NewStat returns kernel/system statistics read from /proc/stat. -func NewStat() (Stat, error) { - fs, err := NewFS(DefaultMountPoint) - if err != nil { - return Stat{}, err - } - - return fs.NewStat() -} - // Parse a cpu statistics line and returns the CPUStat struct plus the cpu id (or -1 for the overall sum). func parseCPUStat(line string) (CPUStat, int64, error) { cpuStat := CPUStat{} @@ -149,11 +141,31 @@ func parseSoftIRQStat(line string) (SoftIRQStat, uint64, error) { return softIRQStat, total, nil } -// NewStat returns an information about current kernel/system statistics. +// NewStat returns information about current cpu/process statistics. +// See https://www.kernel.org/doc/Documentation/filesystems/proc.txt +// +// Deprecated: use fs.Stat() instead +func NewStat() (Stat, error) { + fs, err := NewFS(fs.DefaultProcMountPoint) + if err != nil { + return Stat{}, err + } + return fs.Stat() +} + +// NewStat returns information about current cpu/process statistics. +// See https://www.kernel.org/doc/Documentation/filesystems/proc.txt +// +// Deprecated: use fs.Stat() instead func (fs FS) NewStat() (Stat, error) { - // See https://www.kernel.org/doc/Documentation/filesystems/proc.txt + return fs.Stat() +} + +// Stat returns information about current cpu/process statistics. +// See https://www.kernel.org/doc/Documentation/filesystems/proc.txt +func (fs FS) Stat() (Stat, error) { - f, err := os.Open(fs.Path("stat")) + f, err := os.Open(fs.proc.Path("stat")) if err != nil { return Stat{}, err } diff --git a/vendor/github.com/prometheus/procfs/ttar b/vendor/github.com/prometheus/procfs/ttar index b0171a12..19ef02b8 100755 --- a/vendor/github.com/prometheus/procfs/ttar +++ b/vendor/github.com/prometheus/procfs/ttar @@ -86,8 +86,10 @@ Usage: $bname [-C ] -c -f (create archive) $bname [-C ] -x -f (extract archive) Options: - -C (change directory) - -v (verbose) + -C (change directory) + -v (verbose) + --recursive-unlink (recursively delete existing directory if path + collides with file or directory to extract) Example: Change to sysfs directory, create ttar file from fixtures directory $bname -C sysfs -c -f sysfs/fixtures.ttar fixtures/ @@ -111,8 +113,9 @@ function set_cmd { } unset VERBOSE +unset RECURSIVE_UNLINK -while getopts :cf:htxvC: opt; do +while getopts :cf:-:htxvC: opt; do case $opt in c) set_cmd "create" @@ -136,6 +139,18 @@ while getopts :cf:htxvC: opt; do C) CDIR=$OPTARG ;; + -) + case $OPTARG in + recursive-unlink) + RECURSIVE_UNLINK="yes" + ;; + *) + echo -e "Error: invalid option -$OPTARG" + echo + usage 1 + ;; + esac + ;; *) echo >&2 "ERROR: invalid option -$OPTARG" echo @@ -212,16 +227,16 @@ function extract { local eof_without_newline if [ "$size" -gt 0 ]; then if [[ "$line" =~ [^\\]EOF ]]; then - # An EOF not preceeded by a backslash indicates that the line + # An EOF not preceded by a backslash indicates that the line # does not end with a newline eof_without_newline=1 else eof_without_newline=0 fi # Replace NULLBYTE with null byte if at beginning of line - # Replace NULLBYTE with null byte unless preceeded by backslash + # Replace NULLBYTE with null byte unless preceded by backslash # Remove one backslash in front of NULLBYTE (if any) - # Remove EOF unless preceeded by backslash + # Remove EOF unless preceded by backslash # Remove one backslash in front of EOF if [ $USE_PYTHON -eq 1 ]; then echo -n "$line" | python -c "$PYTHON_EXTRACT_FILTER" >> "$path" @@ -245,7 +260,16 @@ function extract { fi if [[ $line =~ ^Path:\ (.*)$ ]]; then path=${BASH_REMATCH[1]} - if [ -e "$path" ] || [ -L "$path" ]; then + if [ -L "$path" ]; then + rm "$path" + elif [ -d "$path" ]; then + if [ "${RECURSIVE_UNLINK:-}" == "yes" ]; then + rm -r "$path" + else + # Safe because symlinks to directories are dealt with above + rmdir "$path" + fi + elif [ -e "$path" ]; then rm "$path" fi elif [[ $line =~ ^Lines:\ (.*)$ ]]; then @@ -338,8 +362,8 @@ function _create { else < "$file" \ sed 's/EOF/\\EOF/g; - s/NULLBYTE/\\NULLBYTE/g; - s/\x0/NULLBYTE/g; + s/NULLBYTE/\\NULLBYTE/g; + s/\x0/NULLBYTE/g; ' fi if [[ "$eof_without_newline" -eq 1 ]]; then diff --git a/vendor/github.com/prometheus/procfs/xfrm.go b/vendor/github.com/prometheus/procfs/xfrm.go index 8f1508f0..30aa417d 100644 --- a/vendor/github.com/prometheus/procfs/xfrm.go +++ b/vendor/github.com/prometheus/procfs/xfrm.go @@ -97,7 +97,7 @@ func NewXfrmStat() (XfrmStat, error) { // NewXfrmStat reads the xfrm_stat statistics from the 'proc' filesystem. func (fs FS) NewXfrmStat() (XfrmStat, error) { - file, err := os.Open(fs.Path("net/xfrm_stat")) + file, err := os.Open(fs.proc.Path("net/xfrm_stat")) if err != nil { return XfrmStat{}, err } diff --git a/vendor/github.com/prometheus/procfs/xfs/parse.go b/vendor/github.com/prometheus/procfs/xfs/parse.go deleted file mode 100644 index b3d8634d..00000000 --- a/vendor/github.com/prometheus/procfs/xfs/parse.go +++ /dev/null @@ -1,330 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package xfs - -import ( - "bufio" - "fmt" - "io" - "strings" - - "github.com/prometheus/procfs/internal/util" -) - -// ParseStats parses a Stats from an input io.Reader, using the format -// found in /proc/fs/xfs/stat. -func ParseStats(r io.Reader) (*Stats, error) { - const ( - // Fields parsed into stats structures. - fieldExtentAlloc = "extent_alloc" - fieldAbt = "abt" - fieldBlkMap = "blk_map" - fieldBmbt = "bmbt" - fieldDir = "dir" - fieldTrans = "trans" - fieldIg = "ig" - fieldLog = "log" - fieldRw = "rw" - fieldAttr = "attr" - fieldIcluster = "icluster" - fieldVnodes = "vnodes" - fieldBuf = "buf" - fieldXpc = "xpc" - - // Unimplemented at this time due to lack of documentation. - // fieldPushAil = "push_ail" - // fieldXstrat = "xstrat" - // fieldAbtb2 = "abtb2" - // fieldAbtc2 = "abtc2" - // fieldBmbt2 = "bmbt2" - // fieldIbt2 = "ibt2" - // fieldFibt2 = "fibt2" - // fieldQm = "qm" - // fieldDebug = "debug" - ) - - var xfss Stats - - s := bufio.NewScanner(r) - for s.Scan() { - // Expect at least a string label and a single integer value, ex: - // - abt 0 - // - rw 1 2 - ss := strings.Fields(string(s.Bytes())) - if len(ss) < 2 { - continue - } - label := ss[0] - - // Extended precision counters are uint64 values. - if label == fieldXpc { - us, err := util.ParseUint64s(ss[1:]) - if err != nil { - return nil, err - } - - xfss.ExtendedPrecision, err = extendedPrecisionStats(us) - if err != nil { - return nil, err - } - - continue - } - - // All other counters are uint32 values. - us, err := util.ParseUint32s(ss[1:]) - if err != nil { - return nil, err - } - - switch label { - case fieldExtentAlloc: - xfss.ExtentAllocation, err = extentAllocationStats(us) - case fieldAbt: - xfss.AllocationBTree, err = btreeStats(us) - case fieldBlkMap: - xfss.BlockMapping, err = blockMappingStats(us) - case fieldBmbt: - xfss.BlockMapBTree, err = btreeStats(us) - case fieldDir: - xfss.DirectoryOperation, err = directoryOperationStats(us) - case fieldTrans: - xfss.Transaction, err = transactionStats(us) - case fieldIg: - xfss.InodeOperation, err = inodeOperationStats(us) - case fieldLog: - xfss.LogOperation, err = logOperationStats(us) - case fieldRw: - xfss.ReadWrite, err = readWriteStats(us) - case fieldAttr: - xfss.AttributeOperation, err = attributeOperationStats(us) - case fieldIcluster: - xfss.InodeClustering, err = inodeClusteringStats(us) - case fieldVnodes: - xfss.Vnode, err = vnodeStats(us) - case fieldBuf: - xfss.Buffer, err = bufferStats(us) - } - if err != nil { - return nil, err - } - } - - return &xfss, s.Err() -} - -// extentAllocationStats builds an ExtentAllocationStats from a slice of uint32s. -func extentAllocationStats(us []uint32) (ExtentAllocationStats, error) { - if l := len(us); l != 4 { - return ExtentAllocationStats{}, fmt.Errorf("incorrect number of values for XFS extent allocation stats: %d", l) - } - - return ExtentAllocationStats{ - ExtentsAllocated: us[0], - BlocksAllocated: us[1], - ExtentsFreed: us[2], - BlocksFreed: us[3], - }, nil -} - -// btreeStats builds a BTreeStats from a slice of uint32s. -func btreeStats(us []uint32) (BTreeStats, error) { - if l := len(us); l != 4 { - return BTreeStats{}, fmt.Errorf("incorrect number of values for XFS btree stats: %d", l) - } - - return BTreeStats{ - Lookups: us[0], - Compares: us[1], - RecordsInserted: us[2], - RecordsDeleted: us[3], - }, nil -} - -// BlockMappingStat builds a BlockMappingStats from a slice of uint32s. -func blockMappingStats(us []uint32) (BlockMappingStats, error) { - if l := len(us); l != 7 { - return BlockMappingStats{}, fmt.Errorf("incorrect number of values for XFS block mapping stats: %d", l) - } - - return BlockMappingStats{ - Reads: us[0], - Writes: us[1], - Unmaps: us[2], - ExtentListInsertions: us[3], - ExtentListDeletions: us[4], - ExtentListLookups: us[5], - ExtentListCompares: us[6], - }, nil -} - -// DirectoryOperationStats builds a DirectoryOperationStats from a slice of uint32s. -func directoryOperationStats(us []uint32) (DirectoryOperationStats, error) { - if l := len(us); l != 4 { - return DirectoryOperationStats{}, fmt.Errorf("incorrect number of values for XFS directory operation stats: %d", l) - } - - return DirectoryOperationStats{ - Lookups: us[0], - Creates: us[1], - Removes: us[2], - Getdents: us[3], - }, nil -} - -// TransactionStats builds a TransactionStats from a slice of uint32s. -func transactionStats(us []uint32) (TransactionStats, error) { - if l := len(us); l != 3 { - return TransactionStats{}, fmt.Errorf("incorrect number of values for XFS transaction stats: %d", l) - } - - return TransactionStats{ - Sync: us[0], - Async: us[1], - Empty: us[2], - }, nil -} - -// InodeOperationStats builds an InodeOperationStats from a slice of uint32s. -func inodeOperationStats(us []uint32) (InodeOperationStats, error) { - if l := len(us); l != 7 { - return InodeOperationStats{}, fmt.Errorf("incorrect number of values for XFS inode operation stats: %d", l) - } - - return InodeOperationStats{ - Attempts: us[0], - Found: us[1], - Recycle: us[2], - Missed: us[3], - Duplicate: us[4], - Reclaims: us[5], - AttributeChange: us[6], - }, nil -} - -// LogOperationStats builds a LogOperationStats from a slice of uint32s. -func logOperationStats(us []uint32) (LogOperationStats, error) { - if l := len(us); l != 5 { - return LogOperationStats{}, fmt.Errorf("incorrect number of values for XFS log operation stats: %d", l) - } - - return LogOperationStats{ - Writes: us[0], - Blocks: us[1], - NoInternalBuffers: us[2], - Force: us[3], - ForceSleep: us[4], - }, nil -} - -// ReadWriteStats builds a ReadWriteStats from a slice of uint32s. -func readWriteStats(us []uint32) (ReadWriteStats, error) { - if l := len(us); l != 2 { - return ReadWriteStats{}, fmt.Errorf("incorrect number of values for XFS read write stats: %d", l) - } - - return ReadWriteStats{ - Read: us[0], - Write: us[1], - }, nil -} - -// AttributeOperationStats builds an AttributeOperationStats from a slice of uint32s. -func attributeOperationStats(us []uint32) (AttributeOperationStats, error) { - if l := len(us); l != 4 { - return AttributeOperationStats{}, fmt.Errorf("incorrect number of values for XFS attribute operation stats: %d", l) - } - - return AttributeOperationStats{ - Get: us[0], - Set: us[1], - Remove: us[2], - List: us[3], - }, nil -} - -// InodeClusteringStats builds an InodeClusteringStats from a slice of uint32s. -func inodeClusteringStats(us []uint32) (InodeClusteringStats, error) { - if l := len(us); l != 3 { - return InodeClusteringStats{}, fmt.Errorf("incorrect number of values for XFS inode clustering stats: %d", l) - } - - return InodeClusteringStats{ - Iflush: us[0], - Flush: us[1], - FlushInode: us[2], - }, nil -} - -// VnodeStats builds a VnodeStats from a slice of uint32s. -func vnodeStats(us []uint32) (VnodeStats, error) { - // The attribute "Free" appears to not be available on older XFS - // stats versions. Therefore, 7 or 8 elements may appear in - // this slice. - l := len(us) - if l != 7 && l != 8 { - return VnodeStats{}, fmt.Errorf("incorrect number of values for XFS vnode stats: %d", l) - } - - s := VnodeStats{ - Active: us[0], - Allocate: us[1], - Get: us[2], - Hold: us[3], - Release: us[4], - Reclaim: us[5], - Remove: us[6], - } - - // Skip adding free, unless it is present. The zero value will - // be used in place of an actual count. - if l == 7 { - return s, nil - } - - s.Free = us[7] - return s, nil -} - -// BufferStats builds a BufferStats from a slice of uint32s. -func bufferStats(us []uint32) (BufferStats, error) { - if l := len(us); l != 9 { - return BufferStats{}, fmt.Errorf("incorrect number of values for XFS buffer stats: %d", l) - } - - return BufferStats{ - Get: us[0], - Create: us[1], - GetLocked: us[2], - GetLockedWaited: us[3], - BusyLocked: us[4], - MissLocked: us[5], - PageRetries: us[6], - PageFound: us[7], - GetRead: us[8], - }, nil -} - -// ExtendedPrecisionStats builds an ExtendedPrecisionStats from a slice of uint32s. -func extendedPrecisionStats(us []uint64) (ExtendedPrecisionStats, error) { - if l := len(us); l != 3 { - return ExtendedPrecisionStats{}, fmt.Errorf("incorrect number of values for XFS extended precision stats: %d", l) - } - - return ExtendedPrecisionStats{ - FlushBytes: us[0], - WriteBytes: us[1], - ReadBytes: us[2], - }, nil -} diff --git a/vendor/github.com/prometheus/procfs/xfs/xfs.go b/vendor/github.com/prometheus/procfs/xfs/xfs.go deleted file mode 100644 index d86794b7..00000000 --- a/vendor/github.com/prometheus/procfs/xfs/xfs.go +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2017 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package xfs provides access to statistics exposed by the XFS filesystem. -package xfs - -// Stats contains XFS filesystem runtime statistics, parsed from -// /proc/fs/xfs/stat. -// -// The names and meanings of each statistic were taken from -// http://xfs.org/index.php/Runtime_Stats and xfs_stats.h in the Linux -// kernel source. Most counters are uint32s (same data types used in -// xfs_stats.h), but some of the "extended precision stats" are uint64s. -type Stats struct { - // The name of the filesystem used to source these statistics. - // If empty, this indicates aggregated statistics for all XFS - // filesystems on the host. - Name string - - ExtentAllocation ExtentAllocationStats - AllocationBTree BTreeStats - BlockMapping BlockMappingStats - BlockMapBTree BTreeStats - DirectoryOperation DirectoryOperationStats - Transaction TransactionStats - InodeOperation InodeOperationStats - LogOperation LogOperationStats - ReadWrite ReadWriteStats - AttributeOperation AttributeOperationStats - InodeClustering InodeClusteringStats - Vnode VnodeStats - Buffer BufferStats - ExtendedPrecision ExtendedPrecisionStats -} - -// ExtentAllocationStats contains statistics regarding XFS extent allocations. -type ExtentAllocationStats struct { - ExtentsAllocated uint32 - BlocksAllocated uint32 - ExtentsFreed uint32 - BlocksFreed uint32 -} - -// BTreeStats contains statistics regarding an XFS internal B-tree. -type BTreeStats struct { - Lookups uint32 - Compares uint32 - RecordsInserted uint32 - RecordsDeleted uint32 -} - -// BlockMappingStats contains statistics regarding XFS block maps. -type BlockMappingStats struct { - Reads uint32 - Writes uint32 - Unmaps uint32 - ExtentListInsertions uint32 - ExtentListDeletions uint32 - ExtentListLookups uint32 - ExtentListCompares uint32 -} - -// DirectoryOperationStats contains statistics regarding XFS directory entries. -type DirectoryOperationStats struct { - Lookups uint32 - Creates uint32 - Removes uint32 - Getdents uint32 -} - -// TransactionStats contains statistics regarding XFS metadata transactions. -type TransactionStats struct { - Sync uint32 - Async uint32 - Empty uint32 -} - -// InodeOperationStats contains statistics regarding XFS inode operations. -type InodeOperationStats struct { - Attempts uint32 - Found uint32 - Recycle uint32 - Missed uint32 - Duplicate uint32 - Reclaims uint32 - AttributeChange uint32 -} - -// LogOperationStats contains statistics regarding the XFS log buffer. -type LogOperationStats struct { - Writes uint32 - Blocks uint32 - NoInternalBuffers uint32 - Force uint32 - ForceSleep uint32 -} - -// ReadWriteStats contains statistics regarding the number of read and write -// system calls for XFS filesystems. -type ReadWriteStats struct { - Read uint32 - Write uint32 -} - -// AttributeOperationStats contains statistics regarding manipulation of -// XFS extended file attributes. -type AttributeOperationStats struct { - Get uint32 - Set uint32 - Remove uint32 - List uint32 -} - -// InodeClusteringStats contains statistics regarding XFS inode clustering -// operations. -type InodeClusteringStats struct { - Iflush uint32 - Flush uint32 - FlushInode uint32 -} - -// VnodeStats contains statistics regarding XFS vnode operations. -type VnodeStats struct { - Active uint32 - Allocate uint32 - Get uint32 - Hold uint32 - Release uint32 - Reclaim uint32 - Remove uint32 - Free uint32 -} - -// BufferStats contains statistics regarding XFS read/write I/O buffers. -type BufferStats struct { - Get uint32 - Create uint32 - GetLocked uint32 - GetLockedWaited uint32 - BusyLocked uint32 - MissLocked uint32 - PageRetries uint32 - PageFound uint32 - GetRead uint32 -} - -// ExtendedPrecisionStats contains high precision counters used to track the -// total number of bytes read, written, or flushed, during XFS operations. -type ExtendedPrecisionStats struct { - FlushBytes uint64 - WriteBytes uint64 - ReadBytes uint64 -} diff --git a/vendor/golang.org/x/net/html/node.go b/vendor/golang.org/x/net/html/node.go index 2c1cade6..633ee15d 100644 --- a/vendor/golang.org/x/net/html/node.go +++ b/vendor/golang.org/x/net/html/node.go @@ -177,7 +177,7 @@ func (s *nodeStack) index(n *Node) int { // contains returns whether a is within s. func (s *nodeStack) contains(a atom.Atom) bool { for _, n := range *s { - if n.DataAtom == a { + if n.DataAtom == a && n.Namespace == "" { return true } } diff --git a/vendor/golang.org/x/net/html/parse.go b/vendor/golang.org/x/net/html/parse.go index 64a57937..992cff2a 100644 --- a/vendor/golang.org/x/net/html/parse.go +++ b/vendor/golang.org/x/net/html/parse.go @@ -439,9 +439,6 @@ func (p *parser) resetInsertionMode() { case a.Select: if !last { for ancestor, first := n, p.oe[0]; ancestor != first; { - if ancestor == first { - break - } ancestor = p.oe[p.oe.index(ancestor)-1] switch ancestor.DataAtom { case a.Template: @@ -633,7 +630,16 @@ func inHeadIM(p *parser) bool { p.oe.pop() p.acknowledgeSelfClosingTag() return true - case a.Script, a.Title, a.Noscript, a.Noframes, a.Style: + case a.Noscript: + p.addElement() + if p.scripting { + p.setOriginalIM() + p.im = textIM + } else { + p.im = inHeadNoscriptIM + } + return true + case a.Script, a.Title, a.Noframes, a.Style: p.addElement() p.setOriginalIM() p.im = textIM @@ -695,6 +701,49 @@ func inHeadIM(p *parser) bool { return false } +// 12.2.6.4.5. +func inHeadNoscriptIM(p *parser) bool { + switch p.tok.Type { + case DoctypeToken: + // Ignore the token. + return true + case StartTagToken: + switch p.tok.DataAtom { + case a.Html: + return inBodyIM(p) + case a.Basefont, a.Bgsound, a.Link, a.Meta, a.Noframes, a.Style: + return inHeadIM(p) + case a.Head, a.Noscript: + // Ignore the token. + return true + } + case EndTagToken: + switch p.tok.DataAtom { + case a.Noscript, a.Br: + default: + // Ignore the token. + return true + } + case TextToken: + s := strings.TrimLeft(p.tok.Data, whitespace) + if len(s) == 0 { + // It was all whitespace. + return inHeadIM(p) + } + case CommentToken: + return inHeadIM(p) + } + p.oe.pop() + if p.top().DataAtom != a.Head { + panic("html: the new current node will be a head element.") + } + p.im = inHeadIM + if p.tok.DataAtom == a.Noscript { + return true + } + return false +} + // Section 12.2.6.4.6. func afterHeadIM(p *parser) bool { switch p.tok.Type { @@ -904,7 +953,7 @@ func inBodyIM(p *parser) bool { case a.A: for i := len(p.afe) - 1; i >= 0 && p.afe[i].Type != scopeMarkerNode; i-- { if n := p.afe[i]; n.Type == ElementNode && n.DataAtom == a.A { - p.inBodyEndTagFormatting(a.A) + p.inBodyEndTagFormatting(a.A, "a") p.oe.remove(n) p.afe.remove(n) break @@ -918,7 +967,7 @@ func inBodyIM(p *parser) bool { case a.Nobr: p.reconstructActiveFormattingElements() if p.elementInScope(defaultScope, a.Nobr) { - p.inBodyEndTagFormatting(a.Nobr) + p.inBodyEndTagFormatting(a.Nobr, "nobr") p.reconstructActiveFormattingElements() } p.addFormattingElement() @@ -1126,7 +1175,7 @@ func inBodyIM(p *parser) bool { case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6: p.popUntil(defaultScope, a.H1, a.H2, a.H3, a.H4, a.H5, a.H6) case a.A, a.B, a.Big, a.Code, a.Em, a.Font, a.I, a.Nobr, a.S, a.Small, a.Strike, a.Strong, a.Tt, a.U: - p.inBodyEndTagFormatting(p.tok.DataAtom) + p.inBodyEndTagFormatting(p.tok.DataAtom, p.tok.Data) case a.Applet, a.Marquee, a.Object: if p.popUntil(defaultScope, p.tok.DataAtom) { p.clearActiveFormattingElements() @@ -1137,7 +1186,7 @@ func inBodyIM(p *parser) bool { case a.Template: return inHeadIM(p) default: - p.inBodyEndTagOther(p.tok.DataAtom) + p.inBodyEndTagOther(p.tok.DataAtom, p.tok.Data) } case CommentToken: p.addChild(&Node{ @@ -1164,7 +1213,7 @@ func inBodyIM(p *parser) bool { return true } -func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) { +func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom, tagName string) { // This is the "adoption agency" algorithm, described at // https://html.spec.whatwg.org/multipage/syntax.html#adoptionAgency @@ -1186,7 +1235,7 @@ func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) { } } if formattingElement == nil { - p.inBodyEndTagOther(tagAtom) + p.inBodyEndTagOther(tagAtom, tagName) return } feIndex := p.oe.index(formattingElement) @@ -1291,9 +1340,17 @@ func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) { // inBodyEndTagOther performs the "any other end tag" algorithm for inBodyIM. // "Any other end tag" handling from 12.2.6.5 The rules for parsing tokens in foreign content // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign -func (p *parser) inBodyEndTagOther(tagAtom a.Atom) { +func (p *parser) inBodyEndTagOther(tagAtom a.Atom, tagName string) { for i := len(p.oe) - 1; i >= 0; i-- { - if p.oe[i].DataAtom == tagAtom { + // Two element nodes have the same tag if they have the same Data (a + // string-typed field). As an optimization, for common HTML tags, each + // Data string is assigned a unique, non-zero DataAtom (a uint32-typed + // field), since integer comparison is faster than string comparison. + // Uncommon (custom) tags get a zero DataAtom. + // + // The if condition here is equivalent to (p.oe[i].Data == tagName). + if (p.oe[i].DataAtom == tagAtom) && + ((tagAtom != 0) || (p.oe[i].Data == tagName)) { p.oe = p.oe[:i] break } @@ -1687,8 +1744,9 @@ func inCellIM(p *parser) bool { return true } // Close the cell and reprocess. - p.popUntil(tableScope, a.Td, a.Th) - p.clearActiveFormattingElements() + if p.popUntil(tableScope, a.Td, a.Th) { + p.clearActiveFormattingElements() + } p.im = inRowIM return false } @@ -1719,8 +1777,12 @@ func inSelectIM(p *parser) bool { } p.addElement() case a.Select: - p.tok.Type = EndTagToken - return false + if p.popUntil(selectScope, a.Select) { + p.resetInsertionMode() + } else { + // Ignore the token. + return true + } case a.Input, a.Keygen, a.Textarea: if p.elementInScope(selectScope, a.Select) { p.parseImpliedToken(EndTagToken, a.Select, a.Select.String()) @@ -1750,6 +1812,9 @@ func inSelectIM(p *parser) bool { case a.Select: if p.popUntil(selectScope, a.Select) { p.resetInsertionMode() + } else { + // Ignore the token. + return true } case a.Template: return inHeadIM(p) @@ -1775,13 +1840,22 @@ func inSelectInTableIM(p *parser) bool { case StartTagToken, EndTagToken: switch p.tok.DataAtom { case a.Caption, a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr, a.Td, a.Th: - if p.tok.Type == StartTagToken || p.elementInScope(tableScope, p.tok.DataAtom) { - p.parseImpliedToken(EndTagToken, a.Select, a.Select.String()) - return false - } else { + if p.tok.Type == EndTagToken && !p.elementInScope(tableScope, p.tok.DataAtom) { // Ignore the token. return true } + // This is like p.popUntil(selectScope, a.Select), but it also + // matches , not just