#include <sys/stat.h>
#include <stdlib.h>
#include <pthread.h>
-#include "libc.h"
-
-char *__shm_mapname(const char *, char *);
+#include "lock.h"
static struct {
ino_t ino;
sem_t *sem;
int refcnt;
} *semtab;
-static int lock[2];
+static volatile int lock[1];
#define FLAGS (O_RDWR|O_NOFOLLOW|O_CLOEXEC|O_NONBLOCK)
goto fail;
}
close(fd);
- if (link(tmp, name) == 0) break;
- e = errno;
+ e = link(tmp, name) ? errno : 0;
unlink(tmp);
+ if (!e) break;
+ munmap(map, sizeof(sem_t));
/* Failure is only fatal when doing an exclusive open;
* otherwise, next iteration will try to open the
* existing file. */