diff options
Diffstat (limited to 'lib/libc/gen/sem_new.c')
| -rw-r--r-- | lib/libc/gen/sem_new.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/lib/libc/gen/sem_new.c b/lib/libc/gen/sem_new.c index e95b290..3e1f5ea 100644 --- a/lib/libc/gen/sem_new.c +++ b/lib/libc/gen/sem_new.c @@ -41,6 +41,7 @@ #include <fcntl.h> #include <pthread.h> #include <stdarg.h> +#include <stdbool.h> #include <stdlib.h> #include <string.h> #include <time.h> @@ -260,6 +261,7 @@ int _sem_close(sem_t *sem) { struct sem_nameinfo *ni; + bool last; if (sem_check_validity(sem) != 0) return (-1); @@ -274,21 +276,17 @@ _sem_close(sem_t *sem) _pthread_mutex_lock(&sem_llock); LIST_FOREACH(ni, &sem_list, next) { if (sem == ni->sem) { - if (--ni->open_count > 0) { - _pthread_mutex_unlock(&sem_llock); - return (0); + last = --ni->open_count == 0; + if (last) + LIST_REMOVE(ni, next); + _pthread_mutex_unlock(&sem_llock); + if (last) { + munmap(sem, sizeof(*sem)); + free(ni); } - break; + return (0); } } - - if (ni != NULL) { - LIST_REMOVE(ni, next); - _pthread_mutex_unlock(&sem_llock); - munmap(sem, sizeof(*sem)); - free(ni); - return (0); - } _pthread_mutex_unlock(&sem_llock); errno = EINVAL; return (-1); |
