htl: Add support for semaphore maximum value

diff --git a/sysdeps/htl/sem-post.c b/sysdeps/htl/sem-post.c
index 77f297314e191e8b66952f00c386e1a8103b885e..2e0be8fc4950c89088ccd4cce50e5d9753c5cf58 100644 (file)
--- 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 348eee74bb0d79fea464ce8b2fd5420f7119c3ef..8e781e4965f7a7758c587da505a008592da84bd0 100644 (file)
--- 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)