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Introduce cosmo_futex_wait and cosmo_futex_wake

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Cosmopolitan Futexes are now exposed as a public API.
This commit is contained in:
Justine Tunney 2024-11-22 11:08:29 -08:00
parent 729f7045e3
commit 9ddbfd921e
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GPG key ID: BE714B4575D6E328
66 changed files with 886 additions and 917 deletions
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6
third_party/openmp/kmp_lock.cpp vendored
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@ -23,7 +23,7 @@
#if KMP_USE_FUTEX
#ifdef __COSMOPOLITAN__
#include "third_party/nsync/futex.internal.h"
#include <cosmo.h>
#else
#include <sys/syscall.h>
#include <unistd.h>
@ -380,7 +380,7 @@ __kmp_acquire_futex_lock_timed_template(kmp_futex_lock_t *lck, kmp_int32 gtid) {
long rc;
#ifdef __COSMOPOLITAN__
if ((rc = nsync_futex_wait_((int *)&(lck->lk.poll), poll_val, false, 0, NULL)) != 0) {
if ((rc = cosmo_futex_wait((int *)&(lck->lk.poll), poll_val, false, 0, NULL)) != 0) {
#else
if ((rc = syscall(__NR_futex, (int *)&(lck->lk.poll), FUTEX_WAIT, poll_val, NULL,
NULL, 0)) != 0) {
@ -462,7 +462,7 @@ int __kmp_release_futex_lock(kmp_futex_lock_t *lck, kmp_int32 gtid) {
("__kmp_release_futex_lock: lck:%p, T#%d futex_wake 1 thread\n",
lck, gtid));
#ifdef __COSMOPOLITAN__
nsync_futex_wake_((int *)&(lck->lk.poll), 1, false);
cosmo_futex_wake((int *)&(lck->lk.poll), 1, false);
#else
syscall(__NR_futex, &(lck->lk.poll), FUTEX_WAKE, KMP_LOCK_BUSY(1, futex),
NULL, NULL, 0);