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Make fixes and improvements

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- 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
This commit is contained in:
Justine Tunney 2022-11-08 10:09:47 -08:00
parent aee50b1327
commit b407327972
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GPG key ID: BE714B4575D6E328
47 changed files with 645 additions and 306 deletions
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31
libc/calls/clock_gettime.c
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@ -50,20 +50,23 @@
* sys_clock_gettime l: 220𝑐 71𝑛𝑠
*
* @param clock can be one of:
* - `CLOCK_REALTIME`: universally supported
* - `CLOCK_REALTIME_FAST`: ditto but faster on freebsd
* - `CLOCK_MONOTONIC`: universally supported
* - `CLOCK_MONOTONIC_FAST`: ditto but faster on freebsd
* - `CLOCK_MONOTONIC_RAW`: nearly universally supported
* - `CLOCK_PROCESS_CPUTIME_ID`: linux and bsd
* - `CLOCK_THREAD_CPUTIME_ID`: linux and bsd
* - `CLOCK_REALTIME_COARSE`: : linux and openbsd
* - `CLOCK_MONOTONIC_COARSE`: linux
* - `CLOCK_PROF`: linux and netbsd
* - `CLOCK_BOOTTIME`: linux and openbsd
* - `CLOCK_REALTIME_ALARM`: linux-only
* - `CLOCK_BOOTTIME_ALARM`: linux-only
* - `CLOCK_TAI`: linux-only
* - `CLOCK_REALTIME`: universally supported
* - `CLOCK_REALTIME_FAST`: ditto but faster on freebsd
* - `CLOCK_REALTIME_PRECISE`: ditto but better on freebsd
* - `CLOCK_REALTIME_COARSE`: : like `CLOCK_REALTIME_FAST` w/ Linux 2.6.32+
* - `CLOCK_MONOTONIC`: universally supported
* - `CLOCK_MONOTONIC_FAST`: ditto but faster on freebsd
* - `CLOCK_MONOTONIC_PRECISE`: ditto but better on freebsd
* - `CLOCK_MONOTONIC_COARSE`: : like `CLOCK_MONOTONIC_FAST` w/ Linux 2.6.32+
* - `CLOCK_MONOTONIC_RAW`: is actually monotonic but needs Linux 2.6.28+
* - `CLOCK_PROCESS_CPUTIME_ID`: linux and bsd
* - `CLOCK_THREAD_CPUTIME_ID`: linux and bsd
* - `CLOCK_MONOTONIC_COARSE`: linux, freebsd
* - `CLOCK_PROF`: linux and netbsd
* - `CLOCK_BOOTTIME`: linux and openbsd
* - `CLOCK_REALTIME_ALARM`: linux-only
* - `CLOCK_BOOTTIME_ALARM`: linux-only
* - `CLOCK_TAI`: linux-only
* @param ts is where the result is stored
* @return 0 on success, or -1 w/ errno
* @error EPERM if pledge() is in play without stdio promise