deps: upgrade to libuv 1.41.0

Notable changes: - The IBM i platform has been promoted to a Tier 2 platform. - libuv is now built with `-fno-strict-aliasing`, and recommends that projects using libuv do the same. - `uv_fs_mkdir()` now returns `UV_EINVAL` for invalid directory names on Windows. - `uv_uptime()` now returns the correct value on OpenVZ containers. - Windows 8 is the new minimum supported version of Windows. - Bind errors are now reported from `uv_tcp_connect()`. - The `uv_pipe()` function has been added. - The `uv_socketpair()` function has been added. - `uv_read_start()` error handling has been unified across Windows and Unix. PR-URL: #37360 Reviewed-By: Santiago Gimeno <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Jiawen Geng <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Juan José Arboleda <[email protected]>
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diff --git a/deps/uv/.mailmap b/deps/uv/.mailmap
@@ -32,6 +32,7 @@ Nicholas Vavilov <[email protected]>
 Nick Logan <[email protected]> <[email protected]>
 Rasmus Christian Pedersen <[email protected]>
 Rasmus Christian Pedersen <[email protected]> <[email protected]>
+Richard Lau <[email protected]> <[email protected]>
 Robert Mustacchi <[email protected]> <[email protected]>
 Ryan Dahl <[email protected]> <[email protected]>
 Ryan Emery <[email protected]>
@@ -47,6 +48,7 @@ Timothy J. Fontaine <[email protected]>
 Yasuhiro Matsumoto <[email protected]>
 Yazhong Liu <[email protected]>
 Yuki Okumura <[email protected]>
+cjihrig <[email protected]>
 gengjiawen <[email protected]>
 jBarz <[email protected]> <[email protected]>
 jBarz <[email protected]> <[email protected]>

diff --git a/deps/uv/AUTHORS b/deps/uv/AUTHORS
@@ -212,7 +212,7 @@ guworks <[email protected]>
 RossBencina <[email protected]>
 Roger A. Light <[email protected]>
 chenttuuvv <[email protected]>
-Richard Lau <[email protected].com>
+Richard Lau <rlau@redhat.com>
 ronkorving <[email protected]>
 Corbin Simpson <[email protected]>
 Zachary Hamm <[email protected]>
@@ -448,3 +448,14 @@ Aleksej Lebedev <[email protected]>
 Nikolay Mitev <[email protected]>
 Ulrik Strid <[email protected]>
 Elad Lahav <[email protected]>
+Elad Nachmias <[email protected]>
+Darshan Sen <[email protected]>
+Simon Kadisch <[email protected]>
+Momtchil Momtchev <[email protected]>
+Ethel Weston <[email protected]>
+Drew DeVault <[email protected]>
+Mark Klein <[email protected]>
+schamberg97 <[email protected]>
+Bob Weinand <[email protected]>
+Issam E. Maghni <[email protected]>
+Juan Pablo Canepa <[email protected]>
diff --git a/deps/uv/CMakeLists.txt b/deps/uv/CMakeLists.txt
@@ -30,6 +30,13 @@ if(QEMU)
   add_definitions(-D__QEMU__=1)
 endif()
 
+option(ASAN "Enable AddressSanitizer (ASan)" OFF)
+if(ASAN AND CMAKE_C_COMPILER_ID MATCHES "AppleClang|GNU|Clang")
+  add_definitions(-D__ASAN__=1)
+  set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address")
+  set (CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address")
+endif()
+
 # Compiler check
 string(CONCAT is-msvc $<OR:
   $<C_COMPILER_ID:MSVC>,
@@ -95,6 +102,9 @@ list(APPEND uv_cflags ${lint-no-conditional-assignment-msvc})
 list(APPEND uv_cflags ${lint-no-unsafe-msvc})
 list(APPEND uv_cflags ${lint-utf8-msvc} )
 
+check_c_compiler_flag(-fno-strict-aliasing UV_F_STRICT_ALIASING)
+list(APPEND uv_cflags $<$<BOOL:${UV_F_STRICT_ALIASING}>:-fno-strict-aliasing>)
+
 set(uv_sources
     src/fs-poll.c
     src/idna.c
@@ -108,7 +118,7 @@ set(uv_sources
     src/version.c)
 
 if(WIN32)
-  list(APPEND uv_defines WIN32_LEAN_AND_MEAN _WIN32_WINNT=0x0600)
+  list(APPEND uv_defines WIN32_LEAN_AND_MEAN _WIN32_WINNT=0x0602)
   list(APPEND uv_libraries
        psapi
        user32
@@ -318,7 +328,6 @@ if(CMAKE_SYSTEM_NAME STREQUAL "QNX")
     src/unix/bsd-ifaddrs.c
     src/unix/no-proctitle.c
     src/unix/no-fsevents.c)
-  list(APPEND uv_cflags -fno-strict-aliasing)
   list(APPEND uv_libraries socket)
 endif()
 
@@ -466,6 +475,7 @@ if(LIBUV_BUILD_TESTS)
        test/test-poll-close-doesnt-corrupt-stack.c
        test/test-poll-close.c
        test/test-poll-closesocket.c
+       test/test-poll-multiple-handles.c
        test/test-poll-oob.c
        test/test-poll.c
        test/test-process-priority.c

diff --git a/deps/uv/ChangeLog b/deps/uv/ChangeLog
@@ -1,3 +1,82 @@
+2021.02.14, Version 1.41.0 (Stable), 1dff88e5161cba5c59276d2070d2e304e4dcb242
+
+Changes since version 1.40.0:
+
+* mailmap: update contact information for richardlau (Richard Lau)
+
+* build: add asan checks (gengjiawen)
+
+* unix: report bind error in uv_tcp_connect() (Ben Noordhuis)
+
+* doc: uv_tcp_bind() never returns UV_EADDRINUSE (Ben Noordhuis)
+
+* test: fix pump and tcp_write_batch benchmarks (Santiago Gimeno)
+
+* doc: mark IBM i as Tier 2 support (Jesse Gorzinski)
+
+* doc,poll: add notes (repeated cb & cancel pending cb) (Elad Nachmias)
+
+* linux: fix -Wincompatible-pointer-types warning (Ben Noordhuis)
+
+* linux: fix -Wsign-compare warning (Ben Noordhuis)
+
+* android: add system call api guards (Ben Noordhuis)
+
+* unix,win: harmonize uv_read_start() error handling (Ben Noordhuis)
+
+* unix,win: more uv_read_start() argument validation (Ben Noordhuis)
+
+* build: turn on -fno-strict-aliasing (Ben Noordhuis)
+
+* stream: add uv_pipe and uv_socketpair to the API (Jameson Nash)
+
+* unix,win: initialize timer `timeout` field (Ben Noordhuis)
+
+* bsd-ifaddrs: improve comments (Darshan Sen)
+
+* test: remove unnecessary uv_fs_stat() calls (Ben Noordhuis)
+
+* fs: fix utime/futime timestamp rounding errors (Ben Noordhuis)
+
+* test: ensure reliable floating point comparison (Jameson Nash)
+
+* unix,fs: fix uv_fs_sendfile() (Santiago Gimeno)
+
+* unix: fix uv_fs_stat when using statx (Simon Kadisch)
+
+* linux,macos: fix uv_set_process_title regression (Momtchil Momtchev)
+
+* doc: clarify UDP errors and recvmmsg (Ethel Weston)
+
+* test-getaddrinfo: use example.invalid (Drew DeVault)
+
+* Revert "build: fix android autotools build" (Bernardo Ramos)
+
+* unix,fs: on DVS fs, statx returns EOPNOTSUPP (Mark Klein)
+
+* win, fs: mkdir really return UV_EINVAL for invalid names (Nicholas Vavilov)
+
+* tools: migrate tools/make_dist_html.py to python3 (Dominique Dumont)
+
+* unix: fix uv_uptime() on linux (schamberg97)
+
+* unix: check for partial copy_file_range support (Momtchil Momtchev)
+
+* win: bump minimum supported version to windows 8 (Ben Noordhuis)
+
+* poll,unix: ensure safety of rapid fd reuse (Bob Weinand)
+
+* test: fix some warnings (Issam E. Maghni)
+
+* unix: fix uv_uptime() regression (Santiago Gimeno)
+
+* doc: fix versionadded metadata (cjihrig)
+
+* test: fix 'incompatible pointer types' warnings (cjihrig)
+
+* unix: check for EXDEV in uv__fs_sendfile() (Darshan Sen)
+
+
 2020.09.26, Version 1.40.0 (Stable), 4e69e333252693bd82d6338d6124f0416538dbfc
 
 Changes since version 1.39.0:

diff --git a/deps/uv/Makefile.am b/deps/uv/Makefile.am
@@ -56,7 +56,7 @@ if WINNT
 uvinclude_HEADERS += include/uv/win.h include/uv/tree.h
 AM_CPPFLAGS += -I$(top_srcdir)/src/win \
                -DWIN32_LEAN_AND_MEAN \
-               -D_WIN32_WINNT=0x0600
+               -D_WIN32_WINNT=0x0602
 libuv_la_SOURCES += src/win/async.c \
                     src/win/atomicops-inl.h \
                     src/win/core.c \
@@ -225,6 +225,7 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-poll-close.c \
                          test/test-poll-close-doesnt-corrupt-stack.c \
                          test/test-poll-closesocket.c \
+                         test/test-poll-multiple-handles.c \
                          test/test-poll-oob.c \
                          test/test-process-priority.c \
                          test/test-process-title.c \
@@ -385,10 +386,6 @@ if ANDROID
 uvinclude_HEADERS += include/uv/android-ifaddrs.h
 libuv_la_CFLAGS += -D_GNU_SOURCE
 libuv_la_SOURCES += src/unix/android-ifaddrs.c \
-                    src/unix/linux-core.c \
-                    src/unix/linux-inotify.c \
-                    src/unix/linux-syscalls.c \
-                    src/unix/procfs-exepath.c \
                     src/unix/pthread-fixes.c \
                     src/unix/random-getrandom.c \
                     src/unix/random-sysctl-linux.c

diff --git a/deps/uv/README.md b/deps/uv/README.md
@@ -286,6 +286,16 @@ listed in `test/benchmark-list.h`.
 
 Check the [SUPPORTED_PLATFORMS file](SUPPORTED_PLATFORMS.md).
 
+### `-fno-strict-aliasing`
+
+It is recommended to turn on the `-fno-strict-aliasing` compiler flag in
+projects that use libuv. The use of ad hoc "inheritance" in the libuv API
+may not be safe in the presence of compiler optimizations that depend on
+strict aliasing.
+
+MSVC does not have an equivalent flag but it also does not appear to need it
+at the time of writing (December 2019.)
+
 ### AIX Notes
 
 AIX compilation using IBM XL C/C++ requires version 12.1 or greater.

diff --git a/deps/uv/SUPPORTED_PLATFORMS.md b/deps/uv/SUPPORTED_PLATFORMS.md
@@ -4,14 +4,14 @@
 |---|---|---|---|
 | GNU/Linux | Tier 1 | Linux >= 2.6.32 with glibc >= 2.12 | |
 | macOS | Tier 1 | macOS >= 10.7 | |
-| Windows | Tier 1 | >= Windows 7 | MSVC 2008 and later are supported |
+| Windows | Tier 1 | >= Windows 8 | VS 2015 and later are supported |
 | FreeBSD | Tier 1 | >= 10 | |
 | AIX | Tier 2 | >= 6 | Maintainers: @libuv/aix |
+| IBM i | Tier 2 | >= IBM i 7.2 | Maintainers: @libuv/ibmi |
 | z/OS | Tier 2 | >= V2R2 | Maintainers: @libuv/zos |
 | Linux with musl | Tier 2 | musl >= 1.0 | |
 | SmartOS | Tier 2 | >= 14.4 | Maintainers: @libuv/smartos |
 | Android | Tier 3 | NDK >= r15b | |
-| IBM i | Tier 3 | >= IBM i 7.2 | Maintainers: @libuv/ibmi |
 | MinGW | Tier 3 | MinGW32 and MinGW-w64 | |
 | SunOS | Tier 3 | Solaris 121 and later | |
 | Other | Tier 3 | N/A | |

diff --git a/deps/uv/configure.ac b/deps/uv/configure.ac
@@ -13,7 +13,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_PREREQ(2.57)
-AC_INIT([libuv], [1.40.0], [https://github.com/libuv/libuv/issues])
+AC_INIT([libuv], [1.41.0], [https://github.com/libuv/libuv/issues])
 AC_CONFIG_MACRO_DIR([m4])
 m4_include([m4/libuv-extra-automake-flags.m4])
 m4_include([m4/as_case.m4])
@@ -25,6 +25,7 @@ AC_ENABLE_STATIC
 AC_PROG_CC
 AM_PROG_CC_C_O
 CC_FLAG_VISIBILITY #[-fvisibility=hidden]
+CC_CHECK_CFLAGS_APPEND([-fno-strict-aliasing])
 CC_CHECK_CFLAGS_APPEND([-g])
 CC_CHECK_CFLAGS_APPEND([-std=gnu89])
 CC_CHECK_CFLAGS_APPEND([-Wall])

diff --git a/deps/uv/docs/src/pipe.rst b/deps/uv/docs/src/pipe.rst
@@ -118,3 +118,21 @@ API
     function is blocking.
 
     .. versionadded:: 1.16.0
+
+.. c:function:: int uv_pipe(uv_file fds[2], int read_flags, int write_flags)
+
+    Create a pair of connected pipe handles.
+    Data may be written to `fds[1]` and read from `fds[0]`.
+    The resulting handles can be passed to `uv_pipe_open`, used with `uv_spawn`,
+    or for any other purpose.
+
+    Valid values for `flags` are:
+
+      - UV_NONBLOCK_PIPE: Opens the specified socket handle for `OVERLAPPED`
+        or `FIONBIO`/`O_NONBLOCK` I/O usage.
+        This is recommended for handles that will be used by libuv,
+        and not usually recommended otherwise.
+
+    Equivalent to :man:`pipe(2)` with the `O_CLOEXEC` flag set.
+
+    .. versionadded:: 1.41.0
diff --git a/deps/uv/docs/src/poll.rst b/deps/uv/docs/src/poll.rst
@@ -86,36 +86,63 @@ API
 .. c:function:: int uv_poll_start(uv_poll_t* handle, int events, uv_poll_cb cb)
 
     Starts polling the file descriptor. `events` is a bitmask made up of
-    UV_READABLE, UV_WRITABLE, UV_PRIORITIZED and UV_DISCONNECT. As soon as an
-    event is detected the callback will be called with `status` set to 0, and the
-    detected events set on the `events` field.
+    `UV_READABLE`, `UV_WRITABLE`, `UV_PRIORITIZED` and `UV_DISCONNECT`. As soon
+    as an event is detected the callback will be called with `status` set to 0,
+    and the detected events set on the `events` field.
 
-    The UV_PRIORITIZED event is used to watch for sysfs interrupts or TCP out-of-band
-    messages.
+    The `UV_PRIORITIZED` event is used to watch for sysfs interrupts or TCP
+    out-of-band messages.
 
-    The UV_DISCONNECT event is optional in the sense that it may not be
-    reported and the user is free to ignore it, but it can help optimize the shutdown
-    path because an extra read or write call might be avoided.
+    The `UV_DISCONNECT` event is optional in the sense that it may not be
+    reported and the user is free to ignore it, but it can help optimize the
+    shutdown path because an extra read or write call might be avoided.
 
     If an error happens while polling, `status` will be < 0 and corresponds
-    with one of the UV_E* error codes (see :ref:`errors`). The user should
+    with one of the `UV_E*` error codes (see :ref:`errors`). The user should
     not close the socket while the handle is active. If the user does that
-    anyway, the callback *may* be called reporting an error status, but this
-    is **not** guaranteed.
+    anyway, the callback *may* be called reporting an error status, but this is
+    **not** guaranteed.
 
     .. note::
-        Calling :c:func:`uv_poll_start` on a handle that is already active is fine. Doing so
-        will update the events mask that is being watched for.
+        Calling :c:func:`uv_poll_start` on a handle that is already active is
+        fine. Doing so will update the events mask that is being watched for.
 
     .. note::
-        Though UV_DISCONNECT can be set, it is unsupported on AIX and as such will not be set
-        on the `events` field in the callback.
+        Though `UV_DISCONNECT` can be set, it is unsupported on AIX and as such
+        will not be set on the `events` field in the callback.
 
-    .. versionchanged:: 1.9.0 Added the UV_DISCONNECT event.
-    .. versionchanged:: 1.14.0 Added the UV_PRIORITIZED event.
+    .. note::
+        If one of the events `UV_READABLE` or `UV_WRITABLE` are set, the
+        callback will be called again, as long as the given fd/socket remains
+        readable or writable accordingly. Particularly in each of the following
+        scenarios:
+
+        * The callback has been called because the socket became
+          readable/writable and the callback did not conduct a read/write on
+          this socket at all.
+        * The callback committed a read on the socket, and has not read all the
+          available data (when `UV_READABLE` is set).
+        * The callback committed a write on the socket, but it remained
+          writable afterwards (when `UV_WRITABLE` is set).
+        * The socket has already became readable/writable before calling
+          :c:func:`uv_poll_start` on a poll handle associated with this socket,
+          and since then the state of the socket did not changed.
+
+        In all of the above listed scenarios, the socket remains readable or
+        writable and hence the callback will be called again (depending on the
+        events set in the bitmask). This behaviour is known as level
+        triggering.
+
+    .. versionchanged:: 1.9.0 Added the `UV_DISCONNECT` event.
+    .. versionchanged:: 1.14.0 Added the `UV_PRIORITIZED` event.
 
 .. c:function:: int uv_poll_stop(uv_poll_t* poll)
 
     Stop polling the file descriptor, the callback will no longer be called.
 
+    .. note::
+        Calling :c:func:`uv_poll_stop` is effective immediately: any pending
+        callback is also canceled, even if the socket state change notification
+        was already pending.
+
 .. seealso:: The :c:type:`uv_handle_t` API functions also apply.
diff --git a/deps/uv/docs/src/process.rst b/deps/uv/docs/src/process.rst
@@ -119,12 +119,14 @@ Data types
             * flags may be specified to create a duplex data stream.
             */
             UV_READABLE_PIPE = 0x10,
-            UV_WRITABLE_PIPE = 0x20
+            UV_WRITABLE_PIPE = 0x20,
             /*
-             * Open the child pipe handle in overlapped mode on Windows.
-             * On Unix it is silently ignored.
-             */
-            UV_OVERLAPPED_PIPE = 0x40
+            * When UV_CREATE_PIPE is specified, specifying UV_NONBLOCK_PIPE opens the
+            * handle in non-blocking mode in the child. This may cause loss of data,
+            * if the child is not designed to handle to encounter this mode,
+            * but can also be significantly more efficient.
+            */
+            UV_NONBLOCK_PIPE = 0x40
         } uv_stdio_flags;
 
 

diff --git a/deps/uv/docs/src/stream.rst b/deps/uv/docs/src/stream.rst
@@ -139,6 +139,11 @@ API
     be made several times until there is no more data to read or
     :c:func:`uv_read_stop` is called.
 
+    .. versionchanged:: 1.38.0 :c:func:`uv_read_start()` now consistently
+      returns `UV_EALREADY` when called twice, and `UV_EINVAL` when the
+      stream is closing. With older libuv versions, it returns `UV_EALREADY`
+      on Windows but not UNIX, and `UV_EINVAL` on UNIX but not Windows.
+
 .. c:function:: int uv_read_stop(uv_stream_t*)
 
     Stop reading data from the stream. The :c:type:`uv_read_cb` callback will