mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-04 18:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Support process shared condition variables

Browse source
This commit is contained in:
Justine Tunney 2024-07-22 16:33:23 -07:00
parent 3de6632be6
commit 0a9a6f86bb
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
14 changed files with 168 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

11
libc/intrin/pthread_yield_np.c
View file

@ -22,6 +22,8 @@
#include "libc/runtime/syslib.internal.h"
#include "libc/thread/thread.h"
void sys_sched_yield(void);
/**
* Yields current thread's remaining timeslice to operating system.
*
@ -30,13 +32,16 @@
int pthread_yield_np(void) {
if (IsXnuSilicon()) {
__syslib->__pthread_yield_np();
} else if (IsOpenbsd()) {
pthread_pause_np(); // sched_yield() is punishingly slow on OpenBSD
} else if (IsOpenbsd() || IsNetbsd()) {
// sched_yield() is punishingly slow on OpenBSD
// it's ruinously slow it'll destroy everything
pthread_pause_np();
} else {
sched_yield();
sys_sched_yield();
}
return 0;
}
__weak_reference(pthread_yield_np, thrd_yield);
__weak_reference(pthread_yield_np, sched_yield);
__weak_reference(pthread_yield_np, pthread_yield);