linux: fix uv_available_parallelism using cgroup (#4278)

uv_available_parallelism does not handle container cpu limit
set by systems like Docker or Kubernetes. This patch fixes
this

linux: fix uv_available_parallelism using cgroup (#4278)

uv_available_parallelism does not handle container cpu limit
set by systems like Docker or Kubernetes. This patch fixes
this limitation by comparing the amount of available cpus
returned by syscall with the quota of cpus available defined
in the cgroup.

Fixes: https://github.com/libuv/libuv/issues/4146

show more ...

linux: retry fs op if unsupported by io_uring (#4268)

Fallback to the threadpool if it returns `EOPNOTSUPP`.

Fixes: https://github.com/nodejs/node/issues/50876

linux: add some more iouring backed fs ops (#4012)

Specifically: `link`, `mkdir`, `rename`, `symlink` and `unlink`.

linux: add IORING_OP_CLOSE support (#3964)

linux: add IORING_OP_OPENAT support (#3963)

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

show more ...

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 ...

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>

show more ...

darwin,process: feed kevent the signal to reap children (#3893)

Since we are emulating this event, but are not using the pending_queue,
we need to make sure it is accounted for properly.

darwin,process: feed kevent the signal to reap children (#3893)

Since we are emulating this event, but are not using the pending_queue,
we need to make sure it is accounted for properly. Also DRY some of the
reset_timeout code here.

This was observed to cause a hang in certain rare cases, particularly on
M1 machines.

Do a bit of code cleanup too, since we do not need to initialize the
internal signal handling pipe if it will not be used.

show more ...

build: add CI for OpenBSD and FreeBSD (#3548)

Fixes: https://github.com/libuv/libuv/issues/3510

misc: extend getpw to take uid as an argument (#3523)

File system operations may return uid and gid values, which we may want
to pretty-print. We already have the code for getting inform

misc: extend getpw to take uid as an argument (#3523)

File system operations may return uid and gid values, which we may want
to pretty-print. We already have the code for getting information for
the current user, so just need to add a parameter to make it exposed for
every user. We expose information about groups in a similar manner also.

show more ...

unix: drop kfreebsd support (#3835)

Because kFreeBSD is dead. RIP.

Fixes: https://github.com/libuv/libuv/issues/3833

doc: bump min supported linux and freebsd versions (#3830)

The old Linux baseline was essentially RHEL 6 but that distro has been
out of support for two years now. Move to RHEL 7.

doc: bump min supported linux and freebsd versions (#3830)

The old Linux baseline was essentially RHEL 6 but that distro has been
out of support for two years now. Move to RHEL 7.

This commit also moves FreeBSD to tier 2 because it isn't actually
part of libuv's CI matrix, only Node's.

Fixes: https://github.com/libuv/libuv/issues/3822

show more ...

build: add MemorySanitizer (MSAN) support (#3788)

- unpoison results from linux system call wrappers

- unpoison results from stat/fstat/lstat to pacify clang 14
(fixed in late

build: add MemorySanitizer (MSAN) support (#3788)

- unpoison results from linux system call wrappers

- unpoison results from stat/fstat/lstat to pacify clang 14
(fixed in later versions)

- add MSAN build option

- turn on MSAN CI build

show more ...

linux: merge files back into single file (#3778)

I split up linux.c around 2012 for no real reason and now I'm merging
it back together, again for no real reason.

I half-jest. I

linux: merge files back into single file (#3778)

I split up linux.c around 2012 for no real reason and now I'm merging
it back together, again for no real reason.

I half-jest. I like the idea of having everything together because I
practically forgot linux-inotify.c existed. It also makes io_uring
experiments a little easier.

Last but not least, it removes about 100 lines of license boilerplate.

show more ...

linux: move epoll.c back into linux-core.c

epoll.c is only used on Android and Linux after commit 5fe59726 ("sunos:
restore use of event ports") so move it back into linux-core.c

linux: move epoll.c back into linux-core.c

epoll.c is only used on Android and Linux after commit 5fe59726 ("sunos:
restore use of event ports") so move it back into linux-core.c

This commit removes a workaround for pre-2.6.27 kernels that don't have
the epoll_create1() system call.

show more ...

android: remove pthread-fixes.c (#3674)

This was a kludge for a bug in old versions (API level <= 16) of the
Android SDK.

The os390 port had a build dependency on the file but d

android: remove pthread-fixes.c (#3674)

This was a kludge for a bug in old versions (API level <= 16) of the
Android SDK.

The os390 port had a build dependency on the file but does not actually
use it so that too has been removed.

show more ...

aix, ibmi: handle server hang when remote sends TCP RST (#3482)

Workaround getsockname() not working for a TCP handle that has
received RST from the remote.

Co-authored-by: Jame

aix, ibmi: handle server hang when remote sends TCP RST (#3482)

Workaround getsockname() not working for a TCP handle that has
received RST from the remote.

Co-authored-by: Jameson Nash <vtjnash@gmail.com>

show more ...

unix: remove uv__cloexec_ioctl() (#3515)

Now that uv__cloexec_fcntl() is simplified
(https://github.com/libuv/libuv/pull/3492), there is no benefit to
maintaining duplicate code path

unix: remove uv__cloexec_ioctl() (#3515)

Now that uv__cloexec_fcntl() is simplified
(https://github.com/libuv/libuv/pull/3492), there is no benefit to
maintaining duplicate code paths for the same thing.

show more ...

freebsd: use copy_file_range() in uv_fs_sendfile() (#3496)

Use copy_file_range() on FreeBSD 13 and above.

hurd: unbreak build on GNU/Hurd (#3450)

The GNU/Hurd platform does not define IP_ADD_SOURCE_MEMBERSHIP,
IP_DROP_SOURCE_MEMBERSHIP, MCAST_JOIN_SOURCE_GROUP and
MCAST_LEAVE_SOURCE_GROU

hurd: unbreak build on GNU/Hurd (#3450)

The GNU/Hurd platform does not define IP_ADD_SOURCE_MEMBERSHIP,
IP_DROP_SOURCE_MEMBERSHIP, MCAST_JOIN_SOURCE_GROUP and
MCAST_LEAVE_SOURCE_GROUP.

Implement a few functions for the GNU/Hurd. Specifically:

* uv_resident_set_memory (from Linux)
* uv_get_free_memory (from Linux)
* uv_get_total_memory (from Linux)
* uv_cpu_info (from cygwin)
* uv__process_title_cleanup (void)
* uv_get_constrained_memory (stub)
* Leave proctitle unimplemented on Hurd for now
* Implement hurdish uv_exepath
* Enable ifaddrs api
* Unbreak udp basics
* Unbreak futime and lutime on Hurd

show more ...

win: fix style nits [NFC] (#3474)

Internal functions usually have a uv__ prefix.

process,bsd: handle kevent NOTE_EXIT failure (#3451)

The kernel may return ESRCH if the child has already exited here.
This is rather annoying, and means we must indirectly handle
no

process,bsd: handle kevent NOTE_EXIT failure (#3451)

The kernel may return ESRCH if the child has already exited here.
This is rather annoying, and means we must indirectly handle
notification to our event loop of the process exit.

Refs: https://github.com/libuv/libuv/pull/3441
Refs: https://github.com/libuv/libuv/pull/3257

show more ...

process: monitor for exit with kqueue on BSDs (#3441)

This adds a workaround for an xnu kernel bug that sometimes results in
SIGCHLD not being delivered. The workaround is to use kevent

process: monitor for exit with kqueue on BSDs (#3441)

This adds a workaround for an xnu kernel bug that sometimes results in
SIGCHLD not being delivered. The workaround is to use kevent to listen
for EVFILT_PROC/NOTE_EXIT events instead of relying on SIGCHLD on *BSD.

Apple rdar: FB9529664
Refs: https://github.com/libuv/libuv/pull/3257

show more ...

unix: strnlen is not available on Solaris 10

`strnlen` was not available on Solaris 10, so provide a fallback
implementation for it.

PR-URL: https://github.com/libuv/libuv/pull/

unix: strnlen is not available on Solaris 10

`strnlen` was not available on Solaris 10, so provide a fallback
implementation for it.

PR-URL: https://github.com/libuv/libuv/pull/3152
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>

show more ...