Imported Upstream version 0.13.2+dsfg1

deps/w32-pthreads/tests/priority2.c

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+/*
+ * File: priority2.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.,
+ *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Test Synopsis:
+ * - Test thread priority setting after creation.
+ *
+ * Test Method (Validation or Falsification):
+ * - 
+ *
+ * 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"
+
+enum {
+  PTW32TEST_THREAD_INIT_PRIO = 0,
+  PTW32TEST_MAXPRIORITIES = 512
+};
+
+int minPrio;
+int maxPrio;
+int validPriorities[PTW32TEST_MAXPRIORITIES];
+pthread_barrier_t startBarrier, endBarrier;
+
+void * func(void * arg)
+{
+  int policy;
+  int result;
+  struct sched_param param;
+
+  result = pthread_barrier_wait(&startBarrier);
+  assert(result == 0 || result == PTHREAD_BARRIER_SERIAL_THREAD);
+  assert(pthread_getschedparam(pthread_self(), &policy, &param) == 0);
+  assert(policy == SCHED_OTHER);
+  result = pthread_barrier_wait(&endBarrier);
+  assert(result == 0 || result == PTHREAD_BARRIER_SERIAL_THREAD);
+  return (void *) (size_t)param.sched_priority;
+}
+
+
+void *
+getValidPriorities(void * arg)
+{
+  int prioSet;
+  pthread_t thread = pthread_self();
+  HANDLE threadH = pthread_getw32threadhandle_np(thread);
+  struct sched_param param;
+
+  for (prioSet = minPrio;
+       prioSet <= maxPrio;
+       prioSet++)
+    {
+	/*
+       * If prioSet is invalid then the threads priority is unchanged
+       * from the previous value. Make the previous value a known
+       * one so that we can check later.
+       */
+        param.sched_priority = prioSet;
+	assert(pthread_setschedparam(thread, SCHED_OTHER, &param) == 0);
+	validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)] = GetThreadPriority(threadH);
+    }
+
+  return (void *) 0;
+}
+
+
+int
+main()
+{
+  pthread_t t;
+  void * result = NULL;
+  int result2;
+  struct sched_param param;
+
+  assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
+  assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
+
+  assert(pthread_create(&t, NULL, getValidPriorities, NULL) == 0);
+  assert(pthread_join(t, &result) == 0);
+
+  assert(pthread_barrier_init(&startBarrier, NULL, 2) == 0);
+  assert(pthread_barrier_init(&endBarrier, NULL, 2) == 0);
+
+  /* Set the thread's priority to a known initial value.
+   * If the new priority is invalid then the threads priority
+   * is unchanged from the previous value.
+   */
+  SetThreadPriority(pthread_getw32threadhandle_np(pthread_self()),
+                    PTW32TEST_THREAD_INIT_PRIO);
+
+  for (param.sched_priority = minPrio;
+       param.sched_priority <= maxPrio;
+       param.sched_priority++)
+    {
+      assert(pthread_create(&t, NULL, func, NULL) == 0);
+      assert(pthread_setschedparam(t, SCHED_OTHER, &param) == 0);
+      result2 = pthread_barrier_wait(&startBarrier);
+      assert(result2 == 0 || result2 == PTHREAD_BARRIER_SERIAL_THREAD);
+      result2 = pthread_barrier_wait(&endBarrier);
+      assert(result2 == 0 || result2 == PTHREAD_BARRIER_SERIAL_THREAD);
+      assert(GetThreadPriority(pthread_getw32threadhandle_np(t)) ==
+	  validPriorities[param.sched_priority+(PTW32TEST_MAXPRIORITIES/2)]);
+      pthread_join(t, &result);
+      assert(param.sched_priority == (int)(size_t)result);
+    }
+
+  return 0;
+}