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Introduce shm_open() and shm_unlink()

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Justine Tunney 2023-10-31 23:57:52 -07:00
parent fadb64a2bf
commit 0b1acce680
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GPG key ID: BE714B4575D6E328
9 changed files with 313 additions and 37 deletions
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12
libc/thread/sem_open.c
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@ -171,9 +171,8 @@ static struct Semaphore *sem_open_get(const sem_t *sem,
sem_t *sem_open(const char *name, int oflag, ...) {
sem_t *sem;
va_list va;
const char *path;
char path[78];
struct Semaphore *s;
char pathbuf[PATH_MAX];
unsigned mode = 0, value = 0;
va_start(va, oflag);
@ -206,9 +205,7 @@ sem_t *sem_open(const char *name, int oflag, ...) {
return SEM_FAILED;
}
}
if (!(path = sem_path_np(name, pathbuf, sizeof(pathbuf)))) {
return SEM_FAILED;
}
shm_path_np(name, path);
BLOCK_CANCELATION;
sem_open_init();
sem_open_lock();
@ -321,10 +318,9 @@ int sem_close(sem_t *sem) {
* @raise ENAMETOOLONG if too long
*/
int sem_unlink(const char *name) {
const char *path;
char path[78];
int rc, e = errno;
struct Semaphore *s;
char pathbuf[PATH_MAX];
#if 0
if (IsXnuSilicon()) {
@ -332,7 +328,7 @@ int sem_unlink(const char *name) {
}
#endif
if (!(path = sem_path_np(name, pathbuf, sizeof(pathbuf)))) return -1;
shm_path_np(name, path);
if ((rc = unlink(path)) == -1 && IsWindows() && errno == EACCES) {
sem_open_init();
sem_open_lock();