[BZ #3123]

2006-09-08  Ulrich Drepper  <drepper@redhat.com>
	[BZ #3123]
	* sysdeps/pthread/pthread_cond_wait.c (__condvar_cleanup): Don't
	increment WAKEUP_SEQ if this would increase the value beyond TOTAL_SEQ.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.c: Likewise.
	* Makefile (tests): Add tst-cond22.
	* tst-cond22.c: New file.

1 files changed, 153 insertions, 0 deletions

diff --git a/nptl/tst-cond22.c b/nptl/tst-cond22.c
new file mode 100644
index 0000000..0e829ff
--- /dev/null
+++ b/nptl/tst-cond22.c
@@ -0,0 +1,153 @@
+#include <pthreadP.h>
+#include <stdio.h>
+
+
+static pthread_barrier_t b;
+static pthread_cond_t c = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
+
+
+static void
+cl (void *arg)
+{
+  pthread_mutex_unlock (&m);
+}
+
+
+static void *
+tf (void *arg)
+{
+  if (pthread_mutex_lock (&m) != 0)
+    {
+      printf ("%s: mutex_lock failed\n", __func__);
+      exit (1);
+    }
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      printf ("%s: barrier_wait failed\n", __func__);
+      exit (1);
+    }
+  pthread_cleanup_push (cl, NULL);
+  if (pthread_cond_wait (&c, &m) != 0)
+    {
+      printf ("%s: cond_wait failed\n", __func__);
+      exit (1);
+    }
+  pthread_cleanup_pop (0);
+  if (pthread_mutex_unlock (&m) != 0)
+    {
+      printf ("%s: mutex_unlock failed\n", __func__);
+      exit (1);
+    }
+  return NULL;
+}
+
+
+static int
+do_test (void)
+{
+  int status = 0;
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  pthread_t th;
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("1st create failed");
+      return 1;
+    }
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("1st barrier_wait failed");
+      return 1;
+    }
+  if (pthread_mutex_lock (&m) != 0)
+    {
+      puts ("1st mutex_lock failed");
+      return 1;
+    }
+  if (pthread_cond_signal (&c) != 0)
+    {
+      puts ("1st cond_signal failed");
+      return 1;
+    }
+  if (pthread_cancel (th) != 0)
+    {
+      puts ("cancel failed");
+      return 1;
+    }
+  if (pthread_mutex_unlock (&m) != 0)
+    {
+      puts ("1st mutex_unlock failed");
+      return 1;
+    }
+  void *res;
+  if (pthread_join (th, &res) != 0)
+    {
+      puts ("1st join failed");
+      return 1;
+    }
+  if (res != PTHREAD_CANCELED)
+    {
+      puts ("first thread not canceled");
+      status = 1;
+    }
+
+  printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n",
+  	  c.__data.__lock, c.__data.__futex, c.__data.__total_seq,
+	  c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex,
+	  c.__data.__nwaiters, c.__data.__broadcast_seq);
+
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("2nd create failed");
+      return 1;
+    }
+  e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("2nd barrier_wait failed");
+      return 1;
+    }
+  if (pthread_mutex_lock (&m) != 0)
+    {
+      puts ("2nd mutex_lock failed");
+      return 1;
+    }
+  if (pthread_cond_signal (&c) != 0)
+    {
+      puts ("2nd cond_signal failed");
+      return 1;
+    }
+  if (pthread_mutex_unlock (&m) != 0)
+    {
+      puts ("2nd mutex_unlock failed");
+      return 1;
+    }
+  if (pthread_join (th, &res) != 0)
+    {
+      puts ("2nd join failed");
+      return 1;
+    }
+  if (res != NULL)
+    {
+      puts ("2nd thread canceled");
+      status = 1;
+    }
+
+  printf ("cond = { %d, %x, %lld, %lld, %lld, %p, %u, %u }\n",
+  	  c.__data.__lock, c.__data.__futex, c.__data.__total_seq,
+	  c.__data.__wakeup_seq, c.__data.__woken_seq, c.__data.__mutex,
+	  c.__data.__nwaiters, c.__data.__broadcast_seq);
+
+  return status;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"