mirror of
https://github.com/jart/cosmopolitan.git
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b407327972
- clock_nanosleep() is now much faster on OpenBSD and NetBSD - Thread joining is now much faster on NetBSD - FreeBSD timestamps are now more accurate - Thread spawning now goes faster on XNU - Clean up the clone() code
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/calls/struct/timespec.h"
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#include "libc/errno.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/clock.h"
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int n;
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int shown[64];
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void show(int clock) {
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int i;
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struct timespec ts;
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if (clock == 127) return;
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for (i = 0; i < n; ++i) {
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if (shown[i] == clock) {
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return;
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}
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}
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shown[n++] = clock;
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if (clock_getres(clock, &ts) != -1) {
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kprintf("%s %'ld ns\n", DescribeClockName(clock), timespec_tonanos(ts));
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} else {
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kprintf("%s %s\n", DescribeClockName(clock), _strerrno(errno));
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}
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}
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int main(int argc, char *argv[]) {
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show(CLOCK_REALTIME);
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show(CLOCK_REALTIME_FAST);
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show(CLOCK_REALTIME_PRECISE);
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show(CLOCK_REALTIME_COARSE);
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show(CLOCK_MONOTONIC);
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show(CLOCK_MONOTONIC_RAW);
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show(CLOCK_MONOTONIC_FAST);
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show(CLOCK_MONOTONIC_PRECISE);
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show(CLOCK_MONOTONIC_COARSE);
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show(CLOCK_PROCESS_CPUTIME_ID);
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show(CLOCK_THREAD_CPUTIME_ID);
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show(CLOCK_PROF);
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show(CLOCK_BOOTTIME);
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show(CLOCK_REALTIME_ALARM);
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show(CLOCK_BOOTTIME_ALARM);
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show(CLOCK_TAI);
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show(CLOCK_UPTIME);
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show(CLOCK_UPTIME_PRECISE);
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show(CLOCK_UPTIME_FAST);
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show(CLOCK_SECOND);
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}
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