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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
61 lines
3.4 KiB
C
61 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/errno.h"
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#include "libc/thread/thread.h"
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#include "libc/thread/thread2.h"
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#include "third_party/nsync/common.internal.h"
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#include "third_party/nsync/cv.h"
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#include "third_party/nsync/time.h"
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/**
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* Waits for condition with optional time limit, e.g.
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*
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* struct timespec ts; // one second timeout
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* ts = timespec_add(timespec_real(), timespec_frommillis(1000));
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* if (pthread_cond_timedwait(cond, mutex, &ts) == ETIMEDOUT) {
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* // handle timeout...
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* }
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*
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* @param mutex needs to be held by thread when calling this function
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* @param abstime may be null to wait indefinitely and should contain
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* some arbitrary interval added to a `CLOCK_REALTIME` timestamp
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* @return 0 on success, or errno on error
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* @raise ETIMEDOUT if `abstime` was specified and the current time
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* exceeded its value
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* @raise EPERM if `mutex` is `PTHREAD_MUTEX_ERRORCHECK` and the lock
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* isn't owned by the current thread
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* @raise EINVAL if `0 ≤ abstime->tv_nsec < 1000000000` wasn't the case
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* @raise ECANCELED if calling thread was cancelled in masked mode
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* @see pthread_cond_broadcast()
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* @see pthread_cond_signal()
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* @cancelationpoint
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*/
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errno_t pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
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const struct timespec *abstime) {
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if (abstime && !(0 <= abstime->tv_nsec && abstime->tv_nsec < 1000000000)) {
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return EINVAL;
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}
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if (mutex->_type != PTHREAD_MUTEX_NORMAL) {
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nsync_panic_("pthread cond needs normal mutex\n");
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}
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return nsync_cv_wait_with_deadline(
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(nsync_cv *)cond, (nsync_mu *)mutex,
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abstime ? *abstime : nsync_time_no_deadline, 0);
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}
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