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https://github.com/jart/cosmopolitan.git
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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/' ```
59 lines
2.8 KiB
C
59 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 et 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/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/time/struct/timezone.h"
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/**
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* Returns system wall time in microseconds, e.g.
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*
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* int64_t t;
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* char p[20];
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* struct tm tm;
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* struct timeval tv;
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* gettimeofday(&tv, 0);
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* t = tv.tv_sec;
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* gmtime_r(&t, &tm);
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* iso8601(p, &tm);
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* printf("%s\n", p);
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*
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* @param tv points to timeval that receives result if non-null
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* @param tz is completely ignored
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* @return 0 on success, or -1 w/ errno
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* @raise EFAULT if `tv` points to invalid memory
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* @see clock_gettime() for nanosecond precision
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* @see strftime() for string formatting
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* @asyncsignalsafe
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* @vforksafe
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*/
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int gettimeofday(struct timeval *tv, struct timezone *tz) {
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if (tv) {
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struct timespec ts;
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if (clock_gettime(CLOCK_REALTIME, &ts) != -1) {
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tv->tv_sec = ts.tv_sec;
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tv->tv_usec = (ts.tv_nsec + 999) / 1000;
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return 0;
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} else {
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return -1;
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}
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} else {
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return 0;
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}
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}
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