mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
e7611a8476
- Get threads working on NetBSD - Get threads working on OpenBSD - Fix Emacs config for Emacs v28 - Improve --strace logging of sigset_t - Improve --strace logging of struct stat - Improve memory safety of DescribeThing functions - Refactor auto stack allocation into LIBC_RUNTIME - Introduce shell.com example which works on Windows - Refactor __strace_thing into DescribeThing functions - Document the CHECK macros and improve them in NDEBUG mode - Rewrite MAP_STACK so it uses FreeBSD behavior across platforms - Deprecate and discourage the use of MAP_GROWSDOWN (it's weird)
53 lines
2.8 KiB
C
53 lines
2.8 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 2020 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/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/strace.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Sleeps for a particular amount of time.
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* @norestart
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*/
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noinstrument int nanosleep(const struct timespec *req, struct timespec *rem) {
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int rc;
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char buf[2][45];
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if (!req) {
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rc = efault();
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} else if (req->tv_sec < 0 ||
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!(0 <= req->tv_nsec && req->tv_nsec <= 999999999)) {
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rc = einval();
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} else if (!IsWindows() && !IsMetal() && !IsXnu()) {
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rc = sys_nanosleep(req, rem);
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} else if (IsXnu()) {
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rc = sys_nanosleep_xnu(req, rem);
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} else if (IsMetal()) {
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rc = enosys(); /* TODO: Sleep on Metal */
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} else {
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rc = sys_nanosleep_nt(req, rem);
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}
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if (!__time_critical) {
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STRACE("nanosleep(%s, [%s]) → %d% m",
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DescribeTimespec(buf[0], sizeof(buf[0]), rc, req),
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DescribeTimespec(buf[1], sizeof(buf[1]), rc, rem), rc);
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}
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return rc;
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}
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