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Fix some issues

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Justine Tunney 2023-10-09 20:18:48 -07:00
parent 211d5d902e
commit 9d372f48dd
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GPG key ID: BE714B4575D6E328
29 changed files with 373 additions and 63 deletions
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10
libc/thread/sem_post.c
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@ -18,9 +18,12 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/atomic.h"
#include "libc/limits.h"
#include "libc/runtime/syslib.internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/thread/semaphore.h"
#include "third_party/nsync/futex.internal.h"
@ -33,6 +36,13 @@
*/
int sem_post(sem_t *sem) {
int rc, old, wakeups;
#if 0
if (IsXnuSilicon() && sem->sem_magic == SEM_MAGIC_KERNEL) {
return _sysret(__syslib->__sem_post(sem->sem_kernel));
}
#endif
old = atomic_fetch_add_explicit(&sem->sem_value, 1, memory_order_acq_rel);
unassert(old > INT_MIN);
if (old >= 0) {