text: /*
   * 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;
  }
  