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1c935a3420-Apr-2023 Ben Noordhuis

linux: remove bug workaround for obsolete kernels (#3965)

Libuv no longer supports such kernels so the workaround can be removed.


src/unix/linux.c
dfae365f20-Apr-2023 Ben Noordhuis

linux: add IORING_OP_CLOSE support (#3964)


src/unix/fs.c
src/unix/internal.h
src/unix/linux.c
test/test-threadpool-cancel.c
5ca5e47520-Apr-2023 Ben Noordhuis

linux: add IORING_OP_OPENAT support (#3963)


src/unix/fs.c
src/unix/internal.h
src/unix/linux.c
test/test-threadpool-cancel.c
3ba75f1319-Apr-2023 Ben Noordhuis

test: disable signal test under ASan and MSan (#3961)

The signal_multiple_loops test is flaky when run under AddressSanitizer
and MemorySanitizer. Sometimes thread creation fails, other

test: disable signal test under ASan and MSan (#3961)

The signal_multiple_loops test is flaky when run under AddressSanitizer
and MemorySanitizer. Sometimes thread creation fails, other times it
simply times out.

Fixes: https://github.com/libuv/libuv/issues/3956

show more ...


test/test-signal-multiple-loops.c
a7ff759c19-Apr-2023 Ben Noordhuis

linux: fix academic valgrind warning (#3960)

Fix a valgrind warning that only manifested with clang (not gcc!) by
explicitly passing 0L instead of plain 0 as the |sigsz| argument to

linux: fix academic valgrind warning (#3960)

Fix a valgrind warning that only manifested with clang (not gcc!) by
explicitly passing 0L instead of plain 0 as the |sigsz| argument to
io_uring_enter(). That is, pass a long instead of an int.

On x86_64, |sigsz| is passed on the stack (the other arguments are
passed in registers) but where gcc emits a `push $0` that zeroes the
entire stack slot, clang emits a `movl $0,(%rsp)` that leaves the upper
32 bits untouched.

It's academic though since we don't pass IORING_ENTER_EXT_ARG and the
kernel therefore completely ignores the argument.

Refs: https://github.com/libuv/libuv/pull/3952

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src/unix/linux.c
d2c31f4218-Apr-2023 Ben Noordhuis

linux: introduce io_uring support (#3952)

Add io_uring support for several asynchronous file operations:

- read, write
- fsync, fdatasync
- stat, fstat, lstat

io_ur

linux: introduce io_uring support (#3952)

Add io_uring support for several asynchronous file operations:

- read, write
- fsync, fdatasync
- stat, fstat, lstat

io_uring is used when the kernel is new enough, otherwise libuv simply
falls back to the thread pool.

Performance looks great; an 8x increase in throughput has been observed.

This work was sponsored by ISC, the Internet Systems Consortium.

Fixes: https://github.com/libuv/libuv/issues/1947

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docs/src/fs.rst
src/threadpool.c
src/unix/fs.c
src/unix/internal.h
src/unix/linux.c
src/uv-common.h
test/test-threadpool-cancel.c
cb5da59214-Apr-2023 Ben Noordhuis

test: don't use static buffer for formatting (#3953)

Don't use a static buffer to hold human-readable "big" numbers.

The buffer isn't big enough for benchmarks like fs_stat that pri

test: don't use static buffer for formatting (#3953)

Don't use a static buffer to hold human-readable "big" numbers.

The buffer isn't big enough for benchmarks like fs_stat that print a
large number of them. Have the caller pass in a buffer instead.

show more ...


test/benchmark-async-pummel.c
test/benchmark-async.c
test/benchmark-fs-stat.c
test/benchmark-million-async.c
test/benchmark-queue-work.c
test/runner.c
test/task.h
2f33980a12-Apr-2023 Trevor Norris

src: switch to use C11 atomics where available (#3950)

Switch all code in unix/ to use C11 atomics directly.

Change uv_library_shutdown() to use an exchange instead of load/store.

src: switch to use C11 atomics where available (#3950)

Switch all code in unix/ to use C11 atomics directly.

Change uv_library_shutdown() to use an exchange instead of load/store.

Unfortunately MSVC only started supporting C11 atomics in VS2022 version
17.5 Preview 2 as experimental. So resort to using the Interlocked API.

Ref: https://devblogs.microsoft.com/cppblog/c11-atomics-in-visual-studio-2022-version-17-5-preview-2/
Fixes: https://github.com/libuv/libuv/issues/3948

show more ...


src/unix/core.c
src/unix/fs.c
src/unix/kqueue.c
src/unix/linux.c
src/uv-common.c
src/uv-common.h
e189c31311-Apr-2023 Jason Zhang

doc: consistent single backquote in misc.rst (#3946)

Fixes: https://github.com/libuv/libuv/issues/3928


docs/src/misc.rst
1eae559811-Apr-2023 Stacey Marshall

unix,sunos: SO_REUSEPORT not valid on all sockets (#3949)

Issue observed on Solaris with ISC BIND 9.18 which reported "unable to
open route socket: unexpected error". illumos did not hit

unix,sunos: SO_REUSEPORT not valid on all sockets (#3949)

Issue observed on Solaris with ISC BIND 9.18 which reported "unable to
open route socket: unexpected error". illumos did not hit it because it
does not have SO_REUSEPORT (open RFE
https://www.illumos.org/issues/12455)

show more ...


src/unix/udp.c
244df24b01-Apr-2023 Ben Noordhuis

linux: remove arm oabi support (#3942)

The last major distro that supported the oabi calling convention was
Debian 5 (Lenny) and that went out of support in February 2012. It seems
l

linux: remove arm oabi support (#3942)

The last major distro that supported the oabi calling convention was
Debian 5 (Lenny) and that went out of support in February 2012. It seems
like a fairly safe assumption that nothing speaks oabi anymore in this
day and age.

Fixes: https://github.com/libuv/libuv/issues/3935

show more ...


src/unix/linux.c
28b9f1e631-Mar-2023 Ben Noordhuis

linux: replace unsafe macro with inline function (#3933)

Replace the throw-type-safety-to-the-wind CAST() macro with an inline
function that is hopefully harder to misuse. It should make

linux: replace unsafe macro with inline function (#3933)

Replace the throw-type-safety-to-the-wind CAST() macro with an inline
function that is hopefully harder to misuse. It should make the inotify
code slightly more legible if nothing else.

show more ...


src/unix/internal.h
src/unix/linux.c
0c8eccc328-Mar-2023 Ben Noordhuis

linux: remove epoll_pwait() emulation code path (#3936)

This was removed before in 2018 but then reinstated again in 2019 to
fix building with old Android SDKs. Well, time marches on; th

linux: remove epoll_pwait() emulation code path (#3936)

This was removed before in 2018 but then reinstated again in 2019 to
fix building with old Android SDKs. Well, time marches on; this time
it's gone for good.

Refs: https://github.com/libuv/libuv/pull/1372
Refs: https://github.com/libuv/libuv/pull/2358

show more ...


src/unix/linux.c
7b84d5b020-Mar-2023 Trevor Norris

doc: add trevnorris to maintainers (#3931)


MAINTAINERS.md
6600954920-Mar-2023 Trevor Norris

win,unix: change execution order of timers (#3927)

The maximum number of times timers should run when uv_run() is called
with UV_RUN_ONCE and UV_RUN_NOWAIT is 1. Do that by conditionally

win,unix: change execution order of timers (#3927)

The maximum number of times timers should run when uv_run() is called
with UV_RUN_ONCE and UV_RUN_NOWAIT is 1. Do that by conditionally
calling timers before entering the while loop when called with
UV_RUN_DEFAULT.

The reason to always run timers at the end of the while loop, instead of
at the beginning, is to help enforce the conceptual event loop model.
Which starts when entering the event provider (e.g. calling poll).

Other than only allowing timers to be processed once per uv_run()
execution, the only other noticeable change this will show is if all the
following are true:
* uv_run() is called with UV_RUN_NOWAIT or UV_RUN_ONCE.
* An event is waiting to be received when poll is called.
* Execution time between the call to uv_timer_start() and entering the
while loop is longer than the timeout.

If all these are true, then timers that would have executed before
entering the event provider will now be executed afterward.

Fixes: https://github.com/libuv/libuv/issues/3686
Co-authored-by: Momtchil Momtchev <momtchil@momtchev.com>

show more ...


docs/src/design.rst
docs/src/static/loop_iteration.png
src/unix/core.c
src/win/core.c
test/test-list.h
test/test-timer.c
4a65e10f16-Mar-2023 Trevor Norris

doc: add entries to LINKS.md (#3925)

Add the libuv wrapper nsuv to the list, along with other C++ apps that
were found to use libuv extensively and have been maintained recently.


LINKS.md
d4eb276e13-Mar-2023 Niklas Mischkulnig <4586894+mischnic@users.noreply.github.com>

darwin: bring back macos-specific copyfile(3) (#3654)

Co-authored-by: Mingye Wang <arthur200126@gmail.com>


src/unix/fs.c
91a7e49812-Mar-2023 Trevor Norris

test: silence more valgrind warnings (#3917)

Pass the loop to MAKE_VALGRIND_HAPPY() so it's explicit on which loop
needs to be cleaned up. Since it asserts on uv_loop_close(), need to

test: silence more valgrind warnings (#3917)

Pass the loop to MAKE_VALGRIND_HAPPY() so it's explicit on which loop
needs to be cleaned up. Since it asserts on uv_loop_close(), need to
remove a couple of those that were being done before the call.

Cleanup where loop was assigned, so the entire test either uses loop or
uv_default_loop(). Not both.

Also take care of any reqs that may have been left uncleaned.

show more ...


test/benchmark-async-pummel.c
test/benchmark-async.c
test/benchmark-fs-stat.c
test/benchmark-getaddrinfo.c
test/benchmark-loop-count.c
test/benchmark-million-async.c
test/benchmark-million-timers.c
test/benchmark-multi-accept.c
test/benchmark-ping-pongs.c
test/benchmark-ping-udp.c
test/benchmark-pound.c
test/benchmark-pump.c
test/benchmark-queue-work.c
test/benchmark-spawn.c
test/benchmark-tcp-write-batch.c
test/benchmark-udp-pummel.c
test/task.h
test/test-active.c
test/test-async-null-cb.c
test/test-async.c
test/test-callback-stack.c
test/test-close-fd.c
test/test-close-order.c
test/test-connect-unspecified.c
test/test-connection-fail.c
test/test-default-loop-close.c
test/test-delayed-accept.c
test/test-eintr-handling.c
test/test-embed.c
test/test-emfile.c
test/test-fork.c
test/test-fs-copyfile.c
test/test-fs-event.c
test/test-fs-open-flags.c
test/test-fs-poll.c
test/test-fs-readdir.c
test/test-fs.c
test/test-getaddrinfo.c
test/test-getnameinfo.c
test/test-getsockname.c
test/test-handle-fileno.c
test/test-idle.c
test/test-ip-name.c
test/test-ip4-addr.c
test/test-ip6-addr.c
test/test-ipc-heavy-traffic-deadlock-bug.c
test/test-ipc-send-recv.c
test/test-ipc.c
test/test-loop-alive.c
test/test-loop-close.c
test/test-loop-handles.c
test/test-loop-stop.c
test/test-loop-time.c
test/test-metrics.c
test/test-multiple-listen.c
test/test-not-readable-nor-writable-on-read-error.c
test/test-not-writable-after-shutdown.c
test/test-osx-select.c
test/test-ping-pong.c
test/test-pipe-bind-error.c
test/test-pipe-close-stdout-read-stdin.c
test/test-pipe-connect-error.c
test/test-pipe-connect-multiple.c
test/test-pipe-connect-prepare.c
test/test-pipe-getsockname.c
test/test-pipe-pending-instances.c
test/test-pipe-sendmsg.c
test/test-pipe-server-close.c
test/test-pipe-set-fchmod.c
test/test-pipe-set-non-blocking.c
test/test-pipe-try-write.c
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-title.c
test/test-queue-foreach-delete.c
test/test-random.c
test/test-readable-on-eof.c
test/test-ref.c
test/test-run-nowait.c
test/test-run-once.c
test/test-shutdown-close.c
test/test-shutdown-eof.c
test/test-shutdown-simultaneous.c
test/test-shutdown-twice.c
test/test-signal-multiple-loops.c
test/test-signal-pending-on-close.c
test/test-signal.c
test/test-socket-buffer-size.c
test/test-spawn.c
test/test-stdio-over-pipes.c
test/test-tcp-alloc-cb-fail.c
test/test-tcp-bind-error.c
test/test-tcp-bind6-error.c
test/test-tcp-close-accept.c
test/test-tcp-close-after-read-timeout.c
test/test-tcp-close-reset.c
test/test-tcp-close-while-connecting.c
test/test-tcp-close.c
test/test-tcp-connect-error-after-write.c
test/test-tcp-connect-error.c
test/test-tcp-connect-timeout.c
test/test-tcp-connect6-error.c
test/test-tcp-create-socket-early.c
test/test-tcp-flags.c
test/test-tcp-oob.c
test/test-tcp-open.c
test/test-tcp-read-stop-start.c
test/test-tcp-read-stop.c
test/test-tcp-rst.c
test/test-tcp-shutdown-after-write.c
test/test-tcp-try-write-error.c
test/test-tcp-try-write.c
test/test-tcp-unexpected-read.c
test/test-tcp-write-after-connect.c
test/test-tcp-write-fail.c
test/test-tcp-write-in-a-row.c
test/test-tcp-write-queue-order.c
test/test-tcp-write-to-half-open-connection.c
test/test-tcp-writealot.c
test/test-threadpool-cancel.c
test/test-threadpool.c
test/test-timer-again.c
test/test-timer-from-check.c
test/test-timer.c
test/test-tty-duplicate-key.c
test/test-tty-escape-sequence-processing.c
test/test-tty.c
test/test-udp-alloc-cb-fail.c
test/test-udp-bind.c
test/test-udp-connect.c
test/test-udp-connect6.c
test/test-udp-create-socket-early.c
test/test-udp-dgram-too-big.c
test/test-udp-ipv6.c
test/test-udp-mmsg.c
test/test-udp-multicast-interface.c
test/test-udp-multicast-interface6.c
test/test-udp-multicast-join.c
test/test-udp-multicast-join6.c
test/test-udp-multicast-ttl.c
test/test-udp-open.c
test/test-udp-options.c
test/test-udp-recv-in-a-row.c
test/test-udp-send-and-recv.c
test/test-udp-send-hang-loop.c
test/test-udp-send-immediate.c
test/test-udp-send-unreachable.c
test/test-udp-sendmmsg-error.c
test/test-udp-try-send.c
test/test-walk-handles.c
test/test-watcher-cross-stop.c
dfb206c812-Mar-2023 Bruno Passeri

linux: fix ceph copy error truncating readonly files (#3920)

Trying to copy a read-only file onto a ceph-fuse filesystem fails,
returning an `EACCES` error. This happens when the destina

linux: fix ceph copy error truncating readonly files (#3920)

Trying to copy a read-only file onto a ceph-fuse filesystem fails,
returning an `EACCES` error. This happens when the destination
doesn't exist yet, and a new file is created.

By checking that the error matches, and that the destination file
is empty, we can fix this issue while waiting for a proper Ceph
fix to be upstreamed.

Fixes: https://github.com/libuv/libuv/issues/3919
Refs: https://github.com/nodejs/node/issues/37284
Refs: https://github.com/libuv/libuv/issues/3117
Refs: https://github.com/libuv/libuv/issues/3322

show more ...


src/unix/fs.c
9581e3df10-Mar-2023 Ben Noordhuis

test: fix visual studio 2015 build error (#3918)


test/test-fs.c
964f79f706-Mar-2023 Jameson Nash

barrier: wait for prior out before next in (#3905)

This code would previously get confused between rounds of the barrier
being called and a thread might incorrectly get stuck (deadlock)

barrier: wait for prior out before next in (#3905)

This code would previously get confused between rounds of the barrier
being called and a thread might incorrectly get stuck (deadlock) if the
next round started before that thread had exited the current round.

Avoid that by not starting the next round in++ before out-- has reached
zero indicating that all threads have left the prior round.

And fix it that on Windows by replacing the implementation with the one
from unix. There are some awkward platform-specific redirection here
with an extra malloc that is not needed on Win32, but that will be fixed
in libuv v2.

Fixes: https://github.com/libuv/libuv/issue/3872

show more ...


CMakeLists.txt
Makefile.am
include/uv/win.h
src/thread-common.c
src/unix/thread.c
src/win/thread.c
test/test-barrier.c
460accf903-Mar-2023 Trevor Norris

test: make valgrind happy (#3916)

Missing a call to MAKE_VALGRIND_HAPPY() to silence valgrind output.


test/test-fs.c
780b40ea27-Feb-2023 Trevor Norris

win: fix leak in uv_chdir (#3912)

The call to uv__cwd() always returns a new allocation. The previously
allocated utf16_buffer needs to be free'd before passing it in to
receive the

win: fix leak in uv_chdir (#3912)

The call to uv__cwd() always returns a new allocation. The previously
allocated utf16_buffer needs to be free'd before passing it in to
receive the next allocation.

show more ...


src/win/util.c
e613fdd817-Feb-2023 Ben Noordhuis

macos: fix fsevents thread race conditions (#3909)

ThreadSanitizer complains about unsynchronized access to the
handle->loop->cf_state pointer.

The warning is probably benign bu

macos: fix fsevents thread race conditions (#3909)

ThreadSanitizer complains about unsynchronized access to the
handle->loop->cf_state pointer.

The warning is probably benign but the fsevents thread already knows
the pointer. It doesn't have to read it, it just needs to propagate it.

Refs: https://github.com/libuv/libuv/issues/3880

show more ...


src/unix/fsevents.c
62c2374a07-Feb-2023 Jameson Nash

unix: DRY and fix tcp bind error path (#3904)

The conditional bind-to-port logic in tcp.c had an error path that
closed the socket file descriptor while it was still owned by the
uv_

unix: DRY and fix tcp bind error path (#3904)

The conditional bind-to-port logic in tcp.c had an error path that
closed the socket file descriptor while it was still owned by the
uv_tcp_t handle.

Fix that by not closing the file descriptor and refactoring the code so
it is hopefully harder to get wrong in the future.

The refactoring also makes the code a little flatter, removes duplicated
code, and, arguably, is in a more idiomatic libuv style.

Fixes: https://github.com/libuv/libuv/issues/3461
Replaces: https://github.com/libuv/libuv/pull/3462
Co-authored-by: Ben Noordhuis <info@bnoordhuis.nl>

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src/unix/internal.h
src/unix/tcp.c
src/unix/udp.c

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