mirror of
https://github.com/jart/cosmopolitan.git
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bcf9af94bf
- Now using 10x better GCD semaphores - We now generate Linux-like thread ids - We now use fast system clock / sleep libraries - The APE M1 loader now generates Linux-like stacks
67 lines
3.2 KiB
C
67 lines
3.2 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net 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/calls/struct/timespec.h"
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#include "libc/calls/struct/timespec.internal.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/calls/struct/timeval.internal.h"
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/fmt/conv.h"
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#include "libc/runtime/syslib.internal.h"
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#include "libc/sock/internal.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/sysv/consts/timer.h"
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#include "libc/sysv/errfuns.h"
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int sys_clock_nanosleep_xnu(int clock, int flags, const struct timespec *req,
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struct timespec *rem) {
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#ifdef __x86_64__
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struct timeval abs, now, rel;
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if (clock == CLOCK_REALTIME) {
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if (flags & TIMER_ABSTIME) {
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abs = timespec_totimeval(*req);
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sys_gettimeofday_xnu(&now, 0, 0);
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if (timeval_cmp(abs, now) > 0) {
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rel = timeval_sub(abs, now);
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return sys_select(0, 0, 0, 0, &rel);
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} else {
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return 0;
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}
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} else {
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return sys_nanosleep_xnu(req, rem);
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}
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} else {
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return enotsup();
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}
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#else
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long res;
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struct timespec abs, now, rel;
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if (flags & TIMER_ABSTIME) {
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abs = *req;
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if (!(res = __syslib->clock_gettime(clock, &now))) {
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if (timespec_cmp(abs, now) > 0) {
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rel = timespec_sub(abs, now);
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res = __syslib->nanosleep(&rel, 0);
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}
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}
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} else {
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res = __syslib->nanosleep(req, rem);
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}
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return _sysret(res);
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#endif
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}
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