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48 lines
2.6 KiB
C
48 lines
2.6 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/atomic.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/thread/freebsd.internal.h"
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int sys_umtx_timedwait_uint_cp(atomic_int *, int, int, size_t,
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struct _umtx_time *) asm("sys_futex_cp");
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int sys_umtx_timedwait_uint(atomic_int *p, int expect, bool pshare,
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const struct timespec *abstime) {
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int op;
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size_t size;
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struct _umtx_time *tm_p, timo;
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if (!abstime) {
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tm_p = 0;
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size = 0;
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} else {
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timo._clockid = CLOCK_REALTIME;
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timo._flags = UMTX_ABSTIME;
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timo._timeout = *abstime;
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tm_p = &timo;
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size = sizeof(timo);
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}
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if (pshare) {
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op = UMTX_OP_WAIT_UINT;
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} else {
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op = UMTX_OP_WAIT_UINT_PRIVATE;
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}
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return sys_umtx_timedwait_uint_cp(p, op, expect, size, tm_p);
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}
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