Changeset 8

Timestamp:

Apr 22, 2011, 9:37:36 AM (14 years ago)

Author:

Mattia Monga

Message:

Incrementers and watcher

Location:

trunk

Files:

• pthreads-counter.c (added)
• pthreads-pc.c (modified) (2 diffs)

trunk/pthreads-pc.c

@@ -55 +55 @@
   pthread_mutex_lock(&lock);
 
-  if (count == N) pthread_cond_wait(&full, &lock);
+  while (count == N) pthread_cond_wait(&full, &lock);
   buffer[count++] = o;
   if (count == 1) pthread_cond_signal(&empty);
@@ -67 +67 @@
   pthread_mutex_lock(&lock);
 
-  if (count == 0) pthread_cond_wait(&empty, &lock);
+  while (count == 0) pthread_cond_wait(&empty, &lock);
   *result = buffer[--count];
   if (count == N-1) pthread_cond_signal(&full);