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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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4
libc/thread/pthread_getname_np.c
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@ -45,7 +45,7 @@
* @raise ENOSYS on MacOS, Windows, FreeBSD, and OpenBSD
*/
errno_t pthread_getname_np(pthread_t thread, char *name, size_t size) {
int e, fd, rc, tid, len;
int fd, rc, tid, len, e = errno;
if (!size) return 0;
bzero(name, size);
@ -55,7 +55,6 @@ errno_t pthread_getname_np(pthread_t thread, char *name, size_t size) {
// TASK_COMM_LEN is 16 on Linux so we're just being paranoid.
char buf[256] = {0};
if (tid == gettid()) {
e = errno;
if (prctl(PR_GET_NAME, buf) == -1) {
rc = errno;
errno = e;
@ -66,7 +65,6 @@ errno_t pthread_getname_np(pthread_t thread, char *name, size_t size) {
p = stpcpy(p, "/proc/self/task/");
p = FormatUint32(p, tid);
p = stpcpy(p, "/comm");
e = errno;
if ((fd = sys_open(path, O_RDONLY | O_CLOEXEC, 0)) == -1) {
rc = errno;
errno = e;