Test of semaphores.

nptl/tst-sem10.c

@@ -0,0 +1,88 @@
+/* Copyright (C) 2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+
+static int
+do_test (void)
+{
+  sem_t s;
+  if (sem_init (&s, 0, 0) == -1)
+    {
+      puts ("sem_init failed");
+      return 1;
+    }
+
+  struct timeval tv;
+  if (gettimeofday (&tv, NULL) != 0)
+    {
+      puts ("gettimeofday failed");
+      return 1;
+    }
+
+  struct timespec ts;
+  TIMEVAL_TO_TIMESPEC (&tv, &ts);
+
+  /* Set ts to yesterday.  */
+  ts.tv_sec -= 86400;
+
+  int type_before;
+  if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_before) != 0)
+    {
+      puts ("first pthread_setcanceltype failed");
+      return 1;
+    }
+
+  errno = 0;
+  if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
+    {
+      puts ("sem_timedwait succeeded");
+      return 1;
+    }
+  if (errno != ETIMEDOUT)
+    {
+      printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
+	      errno);
+      return 1;
+    }
+
+  int type_after;
+  if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &type_after) != 0)
+    {
+      puts ("second pthread_setcanceltype failed");
+      return 1;
+    }
+  if (type_after != PTHREAD_CANCEL_DEFERRED)
+    {
+      puts ("sem_timedwait changed cancellation type");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"

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;
+}

nptl/tst-sem12.c

@@ -0,0 +1,14 @@
+#include <time.h>
+#include <sys/time.h>
+
+
+#define PREPARE \
+  struct timespec ts; \
+  struct timeval tv; \
+  gettimeofday (&tv, NULL); \
+  TIMEVAL_TO_TIMESPEC (&tv, &ts); \
+  ts.tv_sec += 60;
+
+#define SEM_WAIT(s) sem_timedwait (s, &ts)
+
+#include "tst-sem11.c"