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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 0000000..6633ddd
--- /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;
+}