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Add posix semaphores support

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There's still some bugs to work out on Windows and OpenBSD.
This commit is contained in:
Justine Tunney 2022-10-14 08:25:47 -07:00
parent f52f65b2e3
commit 8111462789
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GPG key ID: BE714B4575D6E328
36 changed files with 779 additions and 59 deletions
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12
libc/thread/pthread_sigmask.c
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@ -17,10 +17,20 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/sigset.h"
#include "libc/errno.h"
/**
* Examines and/or changes blocked signals on current thread.
*
* @return 0 on success, or errno on error
*/
int pthread_sigmask(int how, const sigset_t *set, sigset_t *old) {
return sigprocmask(how, set, old);
int rc, e = errno;
if (!sigprocmask(how, set, old)) {
rc = 0;
} else {
rc = errno;
errno = e;
}
return rc;
}