From 400b2fdd3f1eeeb90061275df9b47ff1d4abe380 Mon Sep 17 00:00:00 2001
From: dmathieu <42@dmathieu.com>
Date: Wed, 20 Nov 2024 14:59:37 +0100
Subject: [PATCH] move lookupcgroupv2 to libpf

---
 {util/cgroup => libpf}/cgroupv2.go | 5 ++---
 reporter/otlp_reporter.go          | 3 +--
 2 files changed, 3 insertions(+), 5 deletions(-)
 rename {util/cgroup => libpf}/cgroupv2.go (86%)

diff --git a/util/cgroup/cgroupv2.go b/libpf/cgroupv2.go
similarity index 86%
rename from util/cgroup/cgroupv2.go
rename to libpf/cgroupv2.go
index 5026ec87..aa5d952f 100644
--- a/util/cgroup/cgroupv2.go
+++ b/libpf/cgroupv2.go
@@ -1,7 +1,7 @@
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
-package cgroup // import "go.opentelemetry.io/ebpf-profiler/util/cgroup"
+package libpf // import "go.opentelemetry.io/ebpf-profiler/libpf"
 
 import (
 	"bufio"
@@ -11,7 +11,6 @@ import (
 
 	lru "github.com/elastic/go-freelru"
 	log "github.com/sirupsen/logrus"
-	"go.opentelemetry.io/ebpf-profiler/libpf"
 )
 
 var (
@@ -19,7 +18,7 @@ var (
 )
 
 // LookupCgroupv2 returns the cgroupv2 ID for pid.
-func LookupCgroupv2(cgrouplru *lru.SyncedLRU[libpf.PID, string], pid libpf.PID) (string, error) {
+func LookupCgroupv2(cgrouplru *lru.SyncedLRU[PID, string], pid PID) (string, error) {
 	id, ok := cgrouplru.Get(pid)
 	if ok {
 		return id, nil
diff --git a/reporter/otlp_reporter.go b/reporter/otlp_reporter.go
index 57f01658..ec92eca7 100644
--- a/reporter/otlp_reporter.go
+++ b/reporter/otlp_reporter.go
@@ -27,7 +27,6 @@ import (
 
 	"go.opentelemetry.io/ebpf-profiler/libpf"
 	"go.opentelemetry.io/ebpf-profiler/libpf/xsync"
-	"go.opentelemetry.io/ebpf-profiler/util/cgroup"
 )
 
 // Assert that we implement the full Reporter interface.
@@ -209,7 +208,7 @@ func (r *OTLPReporter) ReportTraceEvent(trace *libpf.Trace, meta *TraceEventMeta
 	traceEventsMap := r.traceEvents.WLock()
 	defer r.traceEvents.WUnlock(&traceEventsMap)
 
-	containerID, err := cgroup.LookupCgroupv2(r.cgroupv2ID, meta.PID)
+	containerID, err := libpf.LookupCgroupv2(r.cgroupv2ID, meta.PID)
 	if err != nil {
 		log.Debugf("Failed to get a cgroupv2 ID as container ID for PID %d: %v",
 			meta.PID, err)