text: /*
   * File: inherit1.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 inheritance.
   *
   * 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];
  
  
  void * func(void * arg)
  {
    int policy;
    struct sched_param param;
  
    assert(pthread_getschedparam(pthread_self(), &policy, &param) == 0);
    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;
    pthread_t mainThread = pthread_self();
    pthread_attr_t attr;
    void * result = NULL;
    struct sched_param param;
    struct sched_param mainParam;
    int prio;
    int policy;
    int inheritsched = -1;
    pthread_t threadID = pthread_self();
    HANDLE threadH = pthread_getw32threadhandle_np(threadID);
  
    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_attr_init(&attr) == 0);
    assert(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED) == 0);
    assert(pthread_attr_getinheritsched(&attr, &inheritsched) == 0);
    assert(inheritsched == PTHREAD_INHERIT_SCHED);
  
    for (prio = minPrio; prio <= maxPrio; prio++)
      {
        mainParam.sched_priority = prio;
  
        /* Set the thread's priority to a known initial value. */
        SetThreadPriority(threadH, PTW32TEST_THREAD_INIT_PRIO);
  
        /* Change the main thread priority */
        assert(pthread_setschedparam(mainThread, SCHED_OTHER, &mainParam) == 0);
        assert(pthread_getschedparam(mainThread, &policy, &mainParam) == 0);
        assert(policy == SCHED_OTHER);
        /* Priority returned below should be the level set by pthread_setschedparam(). */
        assert(mainParam.sched_priority == prio);
        assert(GetThreadPriority(threadH) ==
                 validPriorities[prio+(PTW32TEST_MAXPRIORITIES/2)]);
  
        for (param.sched_priority = prio;
             param.sched_priority <= maxPrio;
             param.sched_priority++)
          {
            /* The new thread create should ignore this new priority */
            assert(pthread_attr_setschedparam(&attr, &param) == 0);
            assert(pthread_create(&t, &attr, func, NULL) == 0);
            pthread_join(t, &result);
            assert((int)(size_t) result == mainParam.sched_priority);
          }
      }
  
    return 0;
  }
  