diff options
| -rw-r--r-- | sysdeps/htl/sem-post.c | 7 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/bits/local_lim.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/sysdeps/htl/sem-post.c b/sysdeps/htl/sem-post.c index 77f297314e..2e0be8fc49 100644 --- a/sysdeps/htl/sem-post.c +++ b/sysdeps/htl/sem-post.c @@ -30,6 +30,13 @@ __sem_post (sem_t *sem) if (sem->__value > 0) /* Do a quick up. */ { + if (sem->__value == SEM_VALUE_MAX) + { + __pthread_spin_unlock (&sem->__lock); + errno = EOVERFLOW; + return -1; + } + assert (sem->__queue == NULL); sem->__value++; __pthread_spin_unlock (&sem->__lock); diff --git a/sysdeps/mach/hurd/bits/local_lim.h b/sysdeps/mach/hurd/bits/local_lim.h index 348eee74bb..8e781e4965 100644 --- a/sysdeps/mach/hurd/bits/local_lim.h +++ b/sysdeps/mach/hurd/bits/local_lim.h @@ -41,3 +41,6 @@ /* The number of threads per process. */ #define _POSIX_THREAD_THREADS_MAX 64 + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX (2147483647) |