18211419260

Committed 03 Oct 2025 02:49AM UTC coverage: 80.263% (-0.002%) from 80.265%

Build # 18211419260

Build Type

push

github

Committed by

web-flow

Commit Message

Bump libc from 0.2.175 to 0.2.176 in /src/rust (#22719)

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.175 to 0.2.176.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/libc/releases">libc's
releases</a>.</em></p>
<blockquote>
<h2>0.2.176</h2>
<h3>Support</h3>
<ul>
<li>The default FreeBSD version has been raised from 11 to 12. This
matches <code>rustc</code> since 1.78. (<a
href="https://redirect.github.com/rust-lang/libc/pull/2406">#2406</a>)</li>
<li><code>Debug</code> is now always implemented, rather than being
gated behind the <code>extra_traits</code> feature. (<a
href="https://redirect.github.com/rust-lang/libc/pull/4624">#4624</a>)</li>
</ul>
<h3>Added</h3>
<ul>
<li>AIX: Restore some non-POSIX functions guarded by the
<code>_KERNEL</code> macro. (<a
href="https://redirect.github.com/rust-lang/libc/pull/4607">#4607</a>)</li>
<li>FreeBSD 14: Add <code>st_fileref</code> to <code>struct stat</code>
(<a
href="https://redirect.github.com/rust-lang/libc/pull/4642">#4642</a>)</li>
<li>Haiku: Add the <code>accept4</code> POSIX call (<a
href="https://redirect.github.com/rust-lang/libc/pull/4586">#4586</a>)</li>
<li>Introduce a wrapper for representing padding (<a
href="https://redirect.github.com/rust-lang/libc/pull/4632">#4632</a>)</li>
<li>Linux: Add <code>EM_RISCV</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4659">#4659</a>)</li>
<li>Linux: Add <code>MS_NOSYMFOLLOW</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4389">#4389</a>)</li>
<li>Linux: Add <code>backtrace_symbols(_fd)</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4668">#4668</a>)</li>
<li>Linux: Add missing <code>SOL_PACKET</code> optnames (<a
href="https://redirect.github.com/rust-lang/libc/pull/4669">#4669</a>)</li>
<li>Musl s390x: Add <code>SYS_mseal</code> (<a
href="https://redirect.github.com/rust-lang/libc/pull/4549">#4549</a>)</li>
<li>NuttX: Add <code>__errno</code> (... (continued)

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87.69

/src/python/pants/pantsd/lock_test.py

# Copyright 2016 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).

import os
import shutil
import tempfile
import unittest
from multiprocessing import Manager, Process
from threading import Thread

from pants.pantsd.lock import OwnerPrintingInterProcessFileLock


def hold_lock_until_terminate(path, lock_held, terminate):
    lock = OwnerPrintingInterProcessFileLock(path)
    lock.acquire()
    lock_held.set()
    # NOTE: We shouldn't ever wait this long, this is just to ensure
    # we don't somehow leak child processes.
    terminate.wait(60)
    lock.release()
    lock_held.clear()


class TestOwnerPrintingInterProcessFileLock(unittest.TestCase):
    def setUp(self):
        self.lock_dir = tempfile.mkdtemp()
        self.lock_path = os.path.join(self.lock_dir, "lock")
        self.lock = OwnerPrintingInterProcessFileLock(self.lock_path)
        self.manager = Manager()
        self.lock_held = self.manager.Event()
        self.terminate = self.manager.Event()
        self.lock_process = Process(
            target=hold_lock_until_terminate, args=(self.lock_path, self.lock_held, self.terminate)
        )

    def tearDown(self):
        self.terminate.set()
        try:
            shutil.rmtree(self.lock_dir)
        except OSError:
            pass

    def test_non_blocking_attempt(self):
        self.lock_process.start()
        self.lock_held.wait()
        self.assertFalse(self.lock.acquire(blocking=False))

    def test_message(self):
        self.lock_process.start()
        self.lock_held.wait()
        self.assertTrue(os.path.exists(self.lock.message_path))
        with open(self.lock.message_path) as f:
            message_content = f.read()
        self.assertIn(str(self.lock_process.pid), message_content)

        os.unlink(self.lock.message_path)

        def message_fn(message):
            self.assertIn(self.lock.missing_message_output, message)

        self.lock.acquire(blocking=False, message_fn=message_fn)

    def test_blocking(self):
        self.lock_process.start()
        self.lock_held.wait()
        self.assertFalse(self.lock.acquire(timeout=0.1))

        acquire_is_blocking = self.manager.Event()

        def terminate_subproc(terminate, acquire_is_blocking):
            acquire_is_blocking.wait()
            terminate.set()

        Thread(target=terminate_subproc, args=(self.terminate, acquire_is_blocking)).start()

        def message_fn(message):
            self.assertIn(str(self.lock_process.pid), message)
            acquire_is_blocking.set()

        # NOTE: We shouldn't ever wait this long (locally this runs in ~milliseconds)
        # but sometimes CI containers are extremely slow, so we choose a very large
        # value just in case.
        self.assertTrue(self.lock.acquire(timeout=30, message_fn=message_fn))

    def test_reentrant(self):
        self.assertTrue(self.lock.acquire())
        self.assertTrue(self.lock.acquire())

    def test_release(self):
        self.assertTrue(self.lock.acquire())
        self.assertTrue(self.lock.acquired)
        self.lock.release()
        self.assertFalse(self.lock.acquired)

1	# Copyright 2016 Pants project contributors (see CONTRIBUTORS.md).
2	# Licensed under the Apache License, Version 2.0 (see LICENSE).
3
4	import os	1✔
5	import shutil	1✔
6	import tempfile	1✔
7	import unittest	1✔
8	from multiprocessing import Manager, Process	1✔
9	from threading import Thread	1✔
10
11	from pants.pantsd.lock import OwnerPrintingInterProcessFileLock	1✔
12
13
14	def hold_lock_until_terminate(path, lock_held, terminate):	1✔
15	lock = OwnerPrintingInterProcessFileLock(path)	×
16	lock.acquire()	×
17	lock_held.set()	×
18	# NOTE: We shouldn't ever wait this long, this is just to ensure
19	# we don't somehow leak child processes.
20	terminate.wait(60)	×
21	lock.release()	×
22	lock_held.clear()	×
23
24
25	class TestOwnerPrintingInterProcessFileLock(unittest.TestCase):	1✔
26	def setUp(self):	1✔
27	self.lock_dir = tempfile.mkdtemp()	1✔
28	self.lock_path = os.path.join(self.lock_dir, "lock")	1✔
29	self.lock = OwnerPrintingInterProcessFileLock(self.lock_path)	1✔
30	self.manager = Manager()	1✔
31	self.lock_held = self.manager.Event()	1✔
32	self.terminate = self.manager.Event()	1✔
33	self.lock_process = Process(	1✔
34	target=hold_lock_until_terminate, args=(self.lock_path, self.lock_held, self.terminate)
35	)
36
37	def tearDown(self):	1✔
38	self.terminate.set()	1✔
39	try:	1✔
40	shutil.rmtree(self.lock_dir)	1✔
41	except OSError:	×
42	pass	×
43
44	def test_non_blocking_attempt(self):	1✔
45	self.lock_process.start()	1✔
46	self.lock_held.wait()	1✔
47	self.assertFalse(self.lock.acquire(blocking=False))	1✔
48
49	def test_message(self):	1✔
50	self.lock_process.start()	1✔
51	self.lock_held.wait()	1✔
52	self.assertTrue(os.path.exists(self.lock.message_path))	1✔
53	with open(self.lock.message_path) as f:	1✔
54	message_content = f.read()	1✔
55	self.assertIn(str(self.lock_process.pid), message_content)	1✔
56
57	os.unlink(self.lock.message_path)	1✔
58
59	def message_fn(message):	1✔
60	self.assertIn(self.lock.missing_message_output, message)	1✔
61
62	self.lock.acquire(blocking=False, message_fn=message_fn)	1✔
63
64	def test_blocking(self):	1✔
65	self.lock_process.start()	1✔
66	self.lock_held.wait()	1✔
67	self.assertFalse(self.lock.acquire(timeout=0.1))	1✔
68
69	acquire_is_blocking = self.manager.Event()	1✔
70
71	def terminate_subproc(terminate, acquire_is_blocking):	1✔
72	acquire_is_blocking.wait()	1✔
73	terminate.set()	1✔
74
75	Thread(target=terminate_subproc, args=(self.terminate, acquire_is_blocking)).start()	1✔
76
77	def message_fn(message):	1✔
78	self.assertIn(str(self.lock_process.pid), message)	1✔
79	acquire_is_blocking.set()	1✔
80
81	# NOTE: We shouldn't ever wait this long (locally this runs in ~milliseconds)
82	# but sometimes CI containers are extremely slow, so we choose a very large
83	# value just in case.
84	self.assertTrue(self.lock.acquire(timeout=30, message_fn=message_fn))	1✔
85
86	def test_reentrant(self):	1✔
87	self.assertTrue(self.lock.acquire())	1✔
88	self.assertTrue(self.lock.acquire())	1✔
89
90	def test_release(self):	1✔
91	self.assertTrue(self.lock.acquire())	1✔
92	self.assertTrue(self.lock.acquired)	1✔
93	self.lock.release()	1✔
94	self.assertFalse(self.lock.acquired)	1✔

pantsbuild / pants / 18211419260

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