mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-02 17:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use futexes on OpenBSD and improve threading

Browse source
This commit is contained in:
Justine Tunney 2022-07-17 19:59:49 -07:00
parent 5b11033d4d
commit 4f4889ddf7
17 changed files with 114 additions and 63 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libc/intrin/pthread_mutex_lock.c
View file

@ -32,12 +32,12 @@
static int pthread_mutex_lock_spin(pthread_mutex_t *mutex, int expect,
int tries) {
volatile int i;
if (tries < 7) {
volatile int i;
for (i = 0; i != 1 << tries; i++) {
}
tries++;
} else if (IsLinux() /* || IsOpenbsd() */) {
} else if (IsLinux() || IsOpenbsd()) {
atomic_fetch_add(&mutex->waits, 1);
_futex_wait(&mutex->lock, expect, &(struct timespec){1});
atomic_fetch_sub(&mutex->waits, 1);