mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
34 lines
2.4 KiB
C
34 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2022 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/strace.internal.h"
|
|
#include "libc/calls/struct/timespec.h"
|
|
#include "libc/calls/struct/timespec.internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/intrin/describeflags.internal.h"
|
|
#include "libc/intrin/futex.internal.h"
|
|
#include "libc/sysv/consts/futex.h"
|
|
|
|
int _futex(void *, int, int, struct timespec *) hidden;
|
|
int _futex_wait(void *addr, int expect, struct timespec *timeout) {
|
|
int ax = _futex(addr, FUTEX_WAIT, expect, timeout);
|
|
if (IsOpenbsd() && ax > 0) ax = -ax; // yes openbsd does this w/o cf
|
|
STRACE("futex(%t, FUTEX_WAIT, %d, %s) → %s", addr, expect,
|
|
DescribeTimespec(0, timeout), DescribeFutexResult(ax));
|
|
return ax;
|
|
}
|