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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
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Diffstat (limited to 'pthreads/tests/semaphore3.c')
-rw-r--r--pthreads/tests/semaphore3.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/pthreads/tests/semaphore3.c b/pthreads/tests/semaphore3.c
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+++ b/pthreads/tests/semaphore3.c
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+/*
+ * File: semaphore3.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2005 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@callisto.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This 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 of the License, or (at your option) any later version.
+ *
+ * This 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 this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis: Verify sem_getvalue returns the correct number of waiters.
+ * -
+ *
+ * Test Method (Validation or Falsification):
+ * - Validation
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * -
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+
+#include "test.h"
+
+#define MAX_COUNT 100
+
+sem_t s;
+
+void *
+thr (void * arg)
+{
+ assert(sem_wait(&s) == 0);
+ assert(pthread_detach(pthread_self()) == 0);
+ return NULL;
+}
+
+int
+main()
+{
+ int value = 0;
+ int i;
+ pthread_t t[MAX_COUNT+1];
+
+ assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0);
+ assert(sem_getvalue(&s, &value) == 0);
+// printf("Value = %d\n", value); fflush(stdout);
+ assert(value == 0);
+
+ for (i = 1; i <= MAX_COUNT; i++)
+ {
+ assert(pthread_create(&t[i], NULL, thr, NULL) == 0);
+ do {
+ sched_yield();
+ assert(sem_getvalue(&s, &value) == 0);
+ } while (value != -i);
+// printf("Value = %d\n", value); fflush(stdout);
+ assert(-value == i);
+ }
+
+ for (i = MAX_COUNT - 1; i >= 0; i--)
+ {
+ assert(sem_post(&s) == 0);
+ assert(sem_getvalue(&s, &value) == 0);
+// printf("Value = %d\n", value); fflush(stdout);
+ assert(-value == i);
+ }
+
+ return 0;
+}
+