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authorUlrich Drepper <drepper@redhat.com>2007-05-26 01:23:04 +0000
committerUlrich Drepper <drepper@redhat.com>2007-05-26 01:23:04 +0000
commit2af4e3e5668f70976762282cfff715e68929aa81 (patch)
tree980d505143102b6f14936c0ea9f8b156717ec553 /nptl/tst-sem11.c
parent20a4d7228e33a9cc3e26a7ee935ede53306d8bd3 (diff)
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Test of semaphores.
Diffstat (limited to 'nptl/tst-sem11.c')
-rw-r--r--nptl/tst-sem11.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/nptl/tst-sem11.c b/nptl/tst-sem11.c
new file mode 100644
index 0000000000..6633ddd1f3
--- /dev/null
+++ b/nptl/tst-sem11.c
@@ -0,0 +1,76 @@
+#include <semaphore.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <internaltypes.h>
+
+#ifndef SEM_WAIT
+# define SEM_WAIT(s) sem_wait (s)
+#endif
+
+static void *
+tf (void *arg)
+{
+#ifdef PREPARE
+  PREPARE
+#endif
+  SEM_WAIT (arg);
+  return NULL;
+}
+
+int
+main (void)
+{
+  int tries = 5;
+  pthread_t th;
+  sem_t s;
+ again:
+  if (sem_init (&s, 0, 0) != 0)
+    {
+      puts ("sem_init failed");
+      return 1;
+    }
+
+  struct new_sem *is = (struct new_sem *) &s;
+
+  if (is->nwaiters != 0)
+    {
+      puts ("nwaiters not initialized");
+      return 1;
+    }
+
+  if (pthread_create (&th, NULL, tf, &s) != 0)
+    {
+      puts ("pthread_create failed");
+      return 1;
+    }
+
+  sleep (1);
+
+  if (pthread_cancel (th) != 0)
+    {
+      puts ("pthread_cancel failed");
+      return 1;
+    }
+
+  void *r;
+  if (pthread_join (th, &r) != 0)
+    {
+      puts ("pthread_join failed");
+      return 1;
+    }
+  if (r != PTHREAD_CANCELED && --tries > 0)
+    {
+      /* Maybe we get the scheduling right the next time.  */
+      sem_destroy (&s);
+      goto again;
+    }
+
+  if (is->nwaiters != 0)
+    {
+      puts ("nwaiters not reset");
+      return 1;
+    }
+
+  return 0;
+}