linux: don't delay EPOLL_CTL_DEL operations (#4328)

Perform EPOLL_CTL_DEL immediately instead of going through
io_uring's submit queue, otherwise the file descriptor may
be closed by

linux: don't delay EPOLL_CTL_DEL operations (#4328)

Perform EPOLL_CTL_DEL immediately instead of going through
io_uring's submit queue, otherwise the file descriptor may
be closed by the time the kernel starts the operation.

Fixes: https://github.com/libuv/libuv/issues/4323

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win/spawn: optionally run executable paths with no file extension (#4292)

Add a process options flag to enable the optional behavior. Most users
are likely recommended to set this flag b

win/spawn: optionally run executable paths with no file extension (#4292)

Add a process options flag to enable the optional behavior. Most users
are likely recommended to set this flag by default, but it was deemed
potentially breaking to set it by default in libuv.

Co-authored-by: Kyle Edwards <kyle.edwards@kitware.com>

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unix,win: fix busy loop with zero timeout timers (#4250)

Calling `uv_timer_start(h, cb, 0, 0)` from a timer callback resulted in
the timer running immediately because it was inserted at

unix,win: fix busy loop with zero timeout timers (#4250)

Calling `uv_timer_start(h, cb, 0, 0)` from a timer callback resulted in
the timer running immediately because it was inserted at the front of
the timer heap.

If the callback did that every time, libuv would effectively busy-loop
in `uv__run_timers()` and never make forward progress.

Work around that by collecting all expired timers into a queue and only
running their callback afterwards.

Fixes: https://github.com/libuv/libuv/issues/4245
Co-authored-by: Ben Noordhuis <info@bnoordhuis.nl>

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unix,win: utility for setting priority for thread (#4075)

Add uv_thread_setpriority for setting priority for threads created by
uv_thread_create. Add uv_thread_getpriority for getting th

unix,win: utility for setting priority for thread (#4075)

Add uv_thread_setpriority for setting priority for threads created by
uv_thread_create. Add uv_thread_getpriority for getting thread priority.

For Linux by default, if the scheduling policy is SCHED_OTHER and the
priority is 0, we need to set the nice value.

Fixes: https://github.com/libuv/libuv/issues/4051

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unix: reset signal counters after fork (#3485)

If a signal was received but was not dispatched before fork then
caught_signals counter should be reset. Closing of signal pipe makes
i

unix: reset signal counters after fork (#3485)

If a signal was received but was not dispatched before fork then
caught_signals counter should be reset. Closing of signal pipe makes
impossible to receive the signal that was counted.
There is no need in this signal because it was sent to parent process

Fixes: https://github.com/libuv/libuv/issues/3483

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win,spawn: allow `%PATH%` to be unset (#4116)

Fix: https://github.com/libuv/libuv/issues/4115

unix: set ipv6 scope id for link-local addresses (#4107)

Link-local addresses (prefix fe80::/64) don't route unless you specify
the network interface to use so make libuv do that.

unix: set ipv6 scope id for link-local addresses (#4107)

Link-local addresses (prefix fe80::/64) don't route unless you specify
the network interface to use so make libuv do that.

Fixes: https://github.com/nodejs/node/issues/48846

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test: enable disabled spawn_same_stdout_stderr (#4105)

This test was added in commit e403a2c486 from 2014 but its author forgot
to enable it.

test: enable disabled fs_link (#4104)

This test was added in commit 060026ced from 2011 but its author forgot
to actually enable it.

test: enable disabled tcp_connect6_error_fault (#4103)

The test was added in commit e3f2631127 from 2011 but it appears the
author forgot to add it to the test list.

The other t

test: enable disabled tcp_connect6_error_fault (#4103)

The test was added in commit e3f2631127 from 2011 but it appears the
author forgot to add it to the test list.

The other test from that commit was enabled by yours truly in 2012 in
7447048981 but apparently I overlooked the second test as well.

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test: add uv_cancel test for threadpool (#4065 2/2)

Check that uv_cancel() returns UV_EBUSY when called while the uv_work_cb
is being executed.

src: don't run timers if loop is stopped/unref'd (#4048)

The initial run of timers shouldn't happen if uv_stop() has been run
before uv_run() was called, and for backwards compatibility

src: don't run timers if loop is stopped/unref'd (#4048)

The initial run of timers shouldn't happen if uv_stop() has been run
before uv_run() was called, and for backwards compatibility they also
shouldn't run if they have been unref'd before calling uv_run().

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unix,win: add UV_PIPE_NO_TRUNCATE flag (#4040)

Libuv's default behavior is to truncate long Unix socket paths. The flag
tells it to return an error instead.

Fixes: https://githu

unix,win: add UV_PIPE_NO_TRUNCATE flag (#4040)

Libuv's default behavior is to truncate long Unix socket paths. The flag
tells it to return an error instead.

Fixes: https://github.com/libuv/libuv/issues/4036

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fs: use WTF-8 on Windows (#2970)

This allows working with valid filenames that are not well-formed
UTF-16. This is a superset of UTF-8, which does not error when it
encounters an unp

fs: use WTF-8 on Windows (#2970)

This allows working with valid filenames that are not well-formed
UTF-16. This is a superset of UTF-8, which does not error when it
encounters an unpaired surrogate but simply allows it.

Fixes: https://github.com/libuv/libuv/issues/2048
Refs: https://simonsapin.github.io/wtf-8/
Replaces: https://github.com/libuv/libuv/pull/2192 by Nikolai Vavilov <vvnicholas@gmail.com>
Co-authored-by: Jameson Nash <vtjnash@gmail.com>

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Revert "win: implement uv_try_write() for pipes(#3825 1/2)"

This reverts commit 244e0e20592f40fce87d573c9f7b6ff7f189c382.

For some reason this is breaking node.js IPC. I plan to inv

Revert "win: implement uv_try_write() for pipes(#3825 1/2)"

This reverts commit 244e0e20592f40fce87d573c9f7b6ff7f189c382.

For some reason this is breaking node.js IPC. I plan to investigate it
but we can let this for the next release.t

PR-URL: https://github.com/libuv/libuv/pull/4003

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unix: handle CQ overflow in iou ring (#3991)

When there are more than 128 concurrent cq completions the CQ ring
overflows as signaled via the `UV__IORING_SQ_CQ_OVERFLOW`. If this
hap

unix: handle CQ overflow in iou ring (#3991)

When there are more than 128 concurrent cq completions the CQ ring
overflows as signaled via the `UV__IORING_SQ_CQ_OVERFLOW`. If this
happens we have to enter the kernel to get the remaining items.

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unix,win: add uv_clock_gettime() (#3971)

Fixes: https://github.com/libuv/libuv/issues/1674

src: fix events/events_waiting metrics counter (#3957)

The worker pool calls all callbacks locally within the queue. So the
value of nevents doesn't properly reflect that case. Increase

src: fix events/events_waiting metrics counter (#3957)

The worker pool calls all callbacks locally within the queue. So the
value of nevents doesn't properly reflect that case. Increase the number
of events directly from the worker pool's callback to correct this.

In order to properly determine if the events_waiting counter needs to be
incremented, store the timeout value at the time the event provider was
called.

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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>

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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.

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win: implement uv_try_write() for pipes(#3825 1/2)

win: fix fstat for pipes and character files (#3811)

Calling uv_fs_fstat for file types other then disk type was resulting in
error on Windows while it was retrieving data on Linux. This

win: fix fstat for pipes and character files (#3811)

Calling uv_fs_fstat for file types other then disk type was resulting in
error on Windows while it was retrieving data on Linux. This change
enables getting fstat for pipes and character files on Windows with data
fetched being as reasonable as possible.

A simple test is also added to check this behavior on all platforms. It
uses stdin, stdout and stderr. uv_fs_fstat needs to pass with disk files
pipes and character files (eg. console).

Refs: https://github.com/nodejs/node/issues/40006
Co-authored-by: Jameson Nash <vtjnash@gmail.com>

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src: add new metrics APIs (#3749)

The following metrics are now always recorded and available via the new
uv_metrics_info() API.

* loop_count: Number of event loop iterations.

src: add new metrics APIs (#3749)

The following metrics are now always recorded and available via the new
uv_metrics_info() API.

* loop_count: Number of event loop iterations.
* events: Total number of events processed by the event handler.
* events_waiting: Total number of events waiting in the event queue when
the event provider request was made.

Benchmarking has shown no noticeable impact recording these metrics.

PR-URL: https://github.com/libuv/libuv/pull/3749

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win,pipe: fixes in uv_pipe_connect()

Make unices and windows consistent when closing a pipe while it's
connecting so they all return `UV_ECANCELED`.

Avoid race condition between

win,pipe: fixes in uv_pipe_connect()

Make unices and windows consistent when closing a pipe while it's
connecting so they all return `UV_ECANCELED`.

Avoid race condition between `pipe_connect_thread_proc()` and `uv_close()` when
accessing `handle->name`.

Fixes: https://github.com/libuv/libuv/issues/3578

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win: optimize udp receive performance (#3807)

Do at most 32 nonblocking udp receive in a row.

Fixes: https://github.com/libuv/libuv/issues/3704