2022.07.12, Version 1.44.2 (Stable)

Changes since version 1.44.1:

* Add SHA to ChangeLog (Jameson Nash)

* aix, ibmi: handle server hang when remote sends TCP RST (V-for-Vas

2022.07.12, Version 1.44.2 (Stable)

Changes since version 1.44.1:

* Add SHA to ChangeLog (Jameson Nash)

* aix, ibmi: handle server hang when remote sends TCP RST (V-for-Vasili)

* build: make CI a bit noisier (Jameson Nash)

* process: reset the signal mask if the fork fails (Jameson Nash)

* zos: implement cmpxchgi() using assembly (Shuowang (Wayne) Zhang)

* build: AC_SUBST for AM_CFLAGS (Claes Nästén)

* ibmi: Implement UDP disconnect (V-for-Vasili)

* doc: update active maintainers list (Ben Noordhuis)

* build: fix kFreeBSD build (James McCoy)

* build: remove Windows 2016 workflows (Darshan Sen)

* Revert "win,errors: remap ERROR_ACCESS_DENIED to UV_EACCES" (Darshan
Sen)

* unix: simplify getpwuid call (Jameson Nash)

* build: filter CI by paths and branches (Jameson Nash)

* build: add iOS to macos CI (Jameson Nash)

* build: re-enable CI for windows changes (Jameson Nash)

* process,iOS: fix build breakage in process.c (Denny C. Dai)

* test: remove unused declarations in tcp_rst test (V-for-Vasili)

* core: add thread-safe strtok implementation (Guilherme Íscaro)

* win: fix incompatible-types warning (twosee)

* test: fix flaky file watcher test (Ben Noordhuis)

* build: fix AIX xlc autotools build (V-for-Vasili)

* unix,win: fix UV_RUN_ONCE + uv_idle_stop loop hang (Ben Noordhuis)

* win: fix unexpected ECONNRESET error on TCP socket (twosee)

* doc: make sample cross-platform build (gengjiawen)

* test: separate some static variables by test cases (Hannah Shi)

* sunos: fs-event callback can be called after uv_close() (Andy
Fiddaman)

* uv: re-register interest in a file after change (Shuowang (Wayne)
Zhang)

* uv: register UV_RENAME event for _RFIM_UNLINK (Shuowang (Wayne) Zhang)

* uv: register __rfim_event 156 as UV_RENAME (Shuowang (Wayne) Zhang)

* doc: remove smartos from supported platforms (Ben Noordhuis)

* macos: avoid posix_spawnp() cwd bug (Jameson Nash)

* release: check versions of autogen scripts are newer (Jameson Nash)

* test: rewrite embed test (Ben Noordhuis)

* openbsd: use utimensat instead of lutimes (tuftedocelot)

* doc: fix link to uvwget example main() function (blogdaren)

* unix: use MSG_CMSG_CLOEXEC where supported (Ben Noordhuis)

* test: remove disabled callback_order test (Ben Noordhuis)

* win,pipe: fix bugs with pipe resource lifetime management (Jameson
Nash)

* loop: better align order-of-events behavior between platforms (Jameson
Nash)

* aix,test: uv_backend_fd is not supported by poll (V-for-Vasili)

* kqueue: skip EVFILT_PROC when invalidating fds (chucksilvers)

* darwin: fix atomic-ops.h ppc64 build (Sergey Fedorov)

* zos: don't err when killing a zombie process (Shuowang (Wayne) Zhang)

* zos: avoid fs event callbacks after uv_close() (Shuowang (Wayne)
Zhang)

* zos: correctly format interface addresses names (Shuowang (Wayne)
Zhang)

* zos: add uv_interface_addresses() netmask support (Shuowang (Wayne)
Zhang)

* zos: improve memory management of ip addresses (Shuowang (Wayne)
Zhang)

* tcp,pipe: fail `bind` or `listen` after `close` (theanarkh)

* zos: implement uv_available_parallelism() (Shuowang (Wayne) Zhang)

* udp,win: fix UDP compiler warning (Jameson Nash)

* zos: fix early exit of epoll_wait() (Shuowang (Wayne) Zhang)

* unix,tcp: fix errno handling in uv__tcp_bind() (Samuel Cabrero)

* shutdown,unix: reduce code duplication (Jameson Nash)

* unix: fix c99 comments (Ben Noordhuis)

* unix: retry tcgetattr/tcsetattr() on EINTR (Ben Noordhuis)

* docs: update introduction.rst (Ikko Ashimine)

* unix,stream: optimize uv_shutdown() codepath (Jameson Nash)

* zos: delay signal handling until after normal i/o (Shuowang (Wayne)
Zhang)

* stream: uv__drain() always needs to stop POLLOUT (Jameson Nash)

* unix,tcp: allow EINVAL errno from setsockopt in uv_tcp_close_reset()
(Stacey Marshall)

* win,shutdown: improve how shutdown is dispatched (Jameson Nash)

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win,shutdown: improve how shutdown is dispatched (#3649)

Split this off from endgame, so that it can be handled separately and
earlier, rather than trying to detect inside endgame which

win,shutdown: improve how shutdown is dispatched (#3649)

Split this off from endgame, so that it can be handled separately and
earlier, rather than trying to detect inside endgame which case we are
in. There appear to be some race conditions on the `handle` field still
however, which this does not yet attempt to address.

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unix,tcp: allow EINVAL errno from setsockopt in uv_tcp_close_reset() (#3662)

Some setsockopt() implememantations may return with errno of EINVAL
when the socket has been shut down alread

unix,tcp: allow EINVAL errno from setsockopt in uv_tcp_close_reset() (#3662)

Some setsockopt() implememantations may return with errno of EINVAL
when the socket has been shut down already, as documented in the
Open Group Specifications Issue 7, 2018.

When this happens, reset errno and continue to mark the socket closed
and handle any callback.

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stream: uv__drain() always needs to stop POLLOUT (#3675)

Regression caused by 1a91b51976a1adc6972081faa78b6b70022254d3 mistake.

Refs: https://github.com/libuv/libuv/pull/3648
Fi

stream: uv__drain() always needs to stop POLLOUT (#3675)

Regression caused by 1a91b51976a1adc6972081faa78b6b70022254d3 mistake.

Refs: https://github.com/libuv/libuv/pull/3648
Fixes: https://github.com/libuv/libuv/pull/3648/3671

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zos: delay signal handling until after normal i/o (#3643)

Port the changes made to AIX and other unix systems in #611 to z/OS.

Defers the signal watcher that is used for process man

zos: delay signal handling until after normal i/o (#3643)

Port the changes made to AIX and other unix systems in #611 to z/OS.

Defers the signal watcher that is used for process management until
after the dispatch of regular i/o watchers.

Refs: https://github.com/libuv/libuv/pull/611
Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>

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unix,stream: optimize uv_shutdown() codepath (#3646)

Once the write queue is empty, we can fire the event immediately,
without needing a lot of syscalls and then waiting for the kernel t

unix,stream: optimize uv_shutdown() codepath (#3646)

Once the write queue is empty, we can fire the event immediately,
without needing a lot of syscalls and then waiting for the kernel to
feed us the event on the next tick. This also makes it more similar to
how it would behave if there was a write still in the queue also, which
we dispatch later in the same event loop iteration, then drain.

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docs: update introduction.rst (#3664)

Github -> GitHub

unix: retry tcgetattr/tcsetattr() on EINTR (#3669)

EINTR is explicitly documented as a possible error code of tcsetattr().

The documentation for tcgetattr() is silent on the subject

unix: retry tcgetattr/tcsetattr() on EINTR (#3669)

EINTR is explicitly documented as a possible error code of tcsetattr().

The documentation for tcgetattr() is silent on the subject but better
safe than sorry.

Fixes: https://github.com/libuv/libuv/issues/3645

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unix: fix c99 comments (#3667)

Causes compilation errors for people that build libuv with a C89
compiler.

Refs: https://github.com/libuv/libuv/discussions/3666

shutdown,unix: reduce code duplication (#3648)

The UV_ECANCELED codepath had an incorrect comment, and the
implementation was generally less robust (for example, not checking if
`cb`

shutdown,unix: reduce code duplication (#3648)

The UV_ECANCELED codepath had an incorrect comment, and the
implementation was generally less robust (for example, not checking if
`cb` was NULL), so we can merge these codepaths for cleaner code.

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unix,tcp: fix errno handling in uv__tcp_bind() (#3652)

The errno value is only meaningful if bind() fails and returns -1.

Some bind() implementations may return success but modify e

unix,tcp: fix errno handling in uv__tcp_bind() (#3652)

The errno value is only meaningful if bind() fails and returns -1.

Some bind() implementations may return success but modify errno value
internally, like the socket_wrapper library used by the Samba testsuite.

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zos: fix early exit of epoll_wait() (#3653)

This fixes an early exit bug in z/OS implementation of epoll_wait(),
resulting in some file events not being correctly captured.

The

zos: fix early exit of epoll_wait() (#3653)

This fixes an early exit bug in z/OS implementation of epoll_wait(),
resulting in some file events not being correctly captured.

The problem is that reventcount should only be incremented by 1, because
_NFDS counts as 1 even for fds with multiple revents set.

Also makes a few minor improvements to remove redundant checks.

Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>

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udp,win: fix UDP compiler warning (#3647)

Previously it would pass a pointer to uninitialized memory to WSASendTo,
which triggered a compiler warning. However, `addrlen` will be 0, so it

udp,win: fix UDP compiler warning (#3647)

Previously it would pass a pointer to uninitialized memory to WSASendTo,
which triggered a compiler warning. However, `addrlen` will be 0, so it
seems unlikely to trigger an error or uninitialized memory access.

Refs: https://github.com/libuv/leps/pull/10
Refs: https://github.com/libuv/libuv/pull/1872
Refs: https://github.com/libuv/libuv/pull/2217

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zos: implement uv_available_parallelism() (#3650)

Implement uv_available_parallelism() for z/OS by reporting the number of
online cpu using __get_num_online_cpus() from ZOSLIB.

tcp,pipe: fail `bind` or `listen` after `close` (#3641)

Return `UV_EINVAL` in `bind` and `listen` when `handle` is
`UV_HANDLE_CLOSING` or `UV_HANDLE_CLOSED`.

Fixes: https://gith

tcp,pipe: fail `bind` or `listen` after `close` (#3641)

Return `UV_EINVAL` in `bind` and `listen` when `handle` is
`UV_HANDLE_CLOSING` or `UV_HANDLE_CLOSED`.

Fixes: https://github.com/libuv/libuv/issues/3503

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zos: improve memory management of ip addresses (#3640 3/3)

Fixes an issue where under certain conditions, dynamically allocated
ip addresses, strings, and buffers were either leaking mem

zos: improve memory management of ip addresses (#3640 3/3)

Fixes an issue where under certain conditions, dynamically allocated
ip addresses, strings, and buffers were either leaking memory, being
incorrectly freed, or not performing error checks.

Also fixes an issue where the uv_interface_address_t struct was not
correctly initialized to 0, so use calloc() instead of malloc().

Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>

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zos: add uv_interface_addresses() netmask support (#3640 2/3)

Use SIOCGIFNETMASK ioctl to retrieve the netmask for IPv4. However, this
approach is not supported for IPv6.

For IP

zos: add uv_interface_addresses() netmask support (#3640 2/3)

Use SIOCGIFNETMASK ioctl to retrieve the netmask for IPv4. However, this
approach is not supported for IPv6.

For IPv6 netmask, z/OS currently only provides the prefix length through
the __nif6e_prefixlen in __net_ifconf6entry_t struct, but this can be
used to calculate the IPv6 netmask similar to android implementation.

Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>

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zos: correctly format interface addresses names (#3640 1/3)

On z/OS, the interface address name contains EBCDIC and may be padded
with whitespaces. The whitespace padding needs to be tri

zos: correctly format interface addresses names (#3640 1/3)

On z/OS, the interface address name contains EBCDIC and may be padded
with whitespaces. The whitespace padding needs to be trimmed, and the
interface address name needs to be converted from EBCDIC to ASCII.

Co-authored-by: John Barboza <jbarboza@ca.ibm.com>
Co-authored-by: Igor Todorovski <itodorov@ca.ibm.com>

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zos: avoid fs event callbacks after uv_close() (#3620)

On z/OS, fs events are implemented by registering file interest. When
closing a fs event handle, it's possible that a change notifi

zos: avoid fs event callbacks after uv_close() (#3620)

On z/OS, fs events are implemented by registering file interest. When
closing a fs event handle, it's possible that a change notification has
already been generated. In that case, the attempt to unregister file
interest will fail with EALREADY. This will result in the fs event being
delivered even though the handle is closing, which should not happen.

Fixes: https://github.com/libuv/libuv/issues/3601

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zos: don't err when killing a zombie process (#3625)

On z/OS, EPERM is returned if the process being killed is a zombie.
However, this shouldn't be treated as an error, so return 0 inste

zos: don't err when killing a zombie process (#3625)

On z/OS, EPERM is returned if the process being killed is a zombie.
However, this shouldn't be treated as an error, so return 0 instead.

Co-authored-by: Muntasir Mallick <mmallick@ca.ibm.com>
Co-authored-by: Gaby Baghdadi <baghdadi@ca.ibm.com>

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darwin: fix atomic-ops.h ppc64 build (#3634)

kqueue: skip EVFILT_PROC when invalidating fds (#3629)

On NetBSD with libuv 1.44.1 we see that cmake occasionally hangs
waiting for a child process to exit, with libuv waiting forever fo

kqueue: skip EVFILT_PROC when invalidating fds (#3629)

On NetBSD with libuv 1.44.1 we see that cmake occasionally hangs
waiting for a child process to exit, with libuv waiting forever for
`kevent` to deliver more events that never come. The child process has
already exited and is waiting to be collected with `waitpid`.

The hang occurs when the batch of events returned by one call to
`kevent` contains both a EVFILT_READ event for an fd and a later
EVFILT_PROC record for the PID with the same value as the earlier fd.
What happens is that `uv__platform_invalidate_fd` is called to
invalidate events later in the same batch for the fd, but
`uv__platform_invalidate_fd` invalidates the later EVFILT_PROC event
too because it sees the same "ident" value and does not check the
"filter" value to differentiate "ident" values that refer to fds vs.
"ident" values that refer to PIDs.

Add a check for the "filter" value to avoid confusing these two
different kinds of event "ident" values.

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aix,test: uv_backend_fd is not supported by poll (#3621)

Fixes: https://github.com/libuv/libuv/issues/3614
Co-authored-by: Vasili Skurydzin <vasili.skurydzin@ibm.com>

loop: better align order-of-events behavior between platforms (#3598)

Previously, Windows would always defer event processing to the loop
after they were received. This could cause confu

loop: better align order-of-events behavior between platforms (#3598)

Previously, Windows would always defer event processing to the loop
after they were received. This could cause confusion for users who were
using prepare and idle callbacks, as seen from this bug in nodejs[^1] and
this discussion in libuv[^2], and even some discrepancies in the libuv
tests too[^3].

[^1]: https://github.com/nodejs/node/pull/42340
[^2]: https://github.com/libuv/libuv/discussions/3550
[^3]: See change to test-spawn.c in this PR

So rather than declare those usages to be wrong, we change libuv to meet
those users expectations.

Replaces: https://github.com/libuv/libuv/pull/3585

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win,pipe: fix bugs with pipe resource lifetime management (#3611)

If `uv_close` was called while a connect was pending, we would fail to
release the resources for the connection, since w

win,pipe: fix bugs with pipe resource lifetime management (#3611)

If `uv_close` was called while a connect was pending, we would fail to
release the resources for the connection, since we had not yet set the
type of the struct.

Fix a thread data-race on slow connect path code: only permitted to
write to `req` on threads, as anything else causes data race
corruption.

There seemed be a small variety of other resource management bugs in
edge cases, which turned out to make this a lot larger than initially
expected.

Refs: https://github.com/libuv/libuv/pull/3598#issuecomment-1111513567

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