text: /* 
   * robust4.c
   *
   *
   * --------------------------------------------------------------------------
   *
   *      Pthreads-win32 - POSIX Threads Library for Win32
   *      Copyright(C) 1998 John E. Bossom
   *      Copyright(C) 1999,2012 Pthreads-win32 contributors
   *
   *      Homepage1: http://sourceware.org/pthreads-win32/
   *      Homepage2: http://sourceforge.net/projects/pthreads4w/
   *
   *      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
   *
   * --------------------------------------------------------------------------
   *
   * Thread A locks multiple robust mutexes
   * Thread B blocks on same mutexes in different orderings
   * Thread A terminates with thread waiting on mutexes
   * Thread B awakes and inherits each mutex in turn, sets consistent and unlocks
   * Main acquires mutexes with recovered state.
   *
   * Depends on API functions: 
   *      pthread_create()
   *      pthread_join()
   *	pthread_mutex_init()
   *	pthread_mutex_lock()
   *	pthread_mutex_unlock()
   *	pthread_mutex_destroy()
   *	pthread_mutexattr_init()
   *	pthread_mutexattr_setrobust()
   *	pthread_mutexattr_settype()
   *	pthread_mutexattr_destroy()
   */
  
  #include "test.h"
  
  static int lockCount;
  
  static pthread_mutex_t mutex[3];
  
  void * owner(void * arg)
  {
    assert(pthread_mutex_lock(&mutex[0]) == 0);
    lockCount++;
    assert(pthread_mutex_lock(&mutex[1]) == 0);
    lockCount++;
    assert(pthread_mutex_lock(&mutex[2]) == 0);
    lockCount++;
    Sleep(200);
  
    return 0;
  }
   
  void * inheritor(void * arg)
  {
    int* o = (int*)arg;
  
    assert(pthread_mutex_lock(&mutex[o[0]]) == EOWNERDEAD);
    lockCount++;
    assert(pthread_mutex_lock(&mutex[o[1]]) == EOWNERDEAD);
    lockCount++;
    assert(pthread_mutex_lock(&mutex[o[2]]) == EOWNERDEAD);
    lockCount++;
    assert(pthread_mutex_consistent(&mutex[o[2]]) == 0);
    assert(pthread_mutex_consistent(&mutex[o[1]]) == 0);
    assert(pthread_mutex_consistent(&mutex[o[0]]) == 0);
    assert(pthread_mutex_unlock(&mutex[o[2]]) == 0);
    assert(pthread_mutex_unlock(&mutex[o[1]]) == 0);
    assert(pthread_mutex_unlock(&mutex[o[0]]) == 0);
  
    return 0;
  }
   
  int
  main()
  {
    pthread_t to, ti;
    pthread_mutexattr_t ma;
    int order[3];
  
    assert(pthread_mutexattr_init(&ma) == 0);
    assert(pthread_mutexattr_setrobust(&ma, PTHREAD_MUTEX_ROBUST) == 0);
  
    order[0]=0;
    order[1]=1;
    order[2]=2;
    lockCount = 0;
    assert(pthread_mutex_init(&mutex[0], &ma) == 0);
    assert(pthread_mutex_init(&mutex[1], &ma) == 0);
    assert(pthread_mutex_init(&mutex[2], &ma) == 0);
    assert(pthread_create(&to, NULL, owner, NULL) == 0);
    Sleep(100);
    assert(pthread_create(&ti, NULL, inheritor, (void *)order) == 0);
    assert(pthread_join(to, NULL) == 0);
    assert(pthread_join(ti, NULL) == 0);
    assert(lockCount == 6);
    assert(pthread_mutex_lock(&mutex[0]) == 0);
    assert(pthread_mutex_unlock(&mutex[0]) == 0);
    assert(pthread_mutex_destroy(&mutex[0]) == 0);
    assert(pthread_mutex_lock(&mutex[1]) == 0);
    assert(pthread_mutex_unlock(&mutex[1]) == 0);
    assert(pthread_mutex_destroy(&mutex[1]) == 0);
    assert(pthread_mutex_lock(&mutex[2]) == 0);
    assert(pthread_mutex_unlock(&mutex[2]) == 0);
    assert(pthread_mutex_destroy(&mutex[2]) == 0);
  
    order[0]=1;
    order[1]=0;
    order[2]=2;
    lockCount = 0;
    assert(pthread_mutex_init(&mutex[0], &ma) == 0);
    assert(pthread_mutex_init(&mutex[1], &ma) == 0);
    assert(pthread_mutex_init(&mutex[2], &ma) == 0);
    assert(pthread_create(&to, NULL, owner, NULL) == 0);
    Sleep(100);
    assert(pthread_create(&ti, NULL, inheritor, (void *)order) == 0);
    assert(pthread_join(to, NULL) == 0);
    assert(pthread_join(ti, NULL) == 0);
    assert(lockCount == 6);
    assert(pthread_mutex_lock(&mutex[0]) == 0);
    assert(pthread_mutex_unlock(&mutex[0]) == 0);
    assert(pthread_mutex_destroy(&mutex[0]) == 0);
    assert(pthread_mutex_lock(&mutex[1]) == 0);
    assert(pthread_mutex_unlock(&mutex[1]) == 0);
    assert(pthread_mutex_destroy(&mutex[1]) == 0);
    assert(pthread_mutex_lock(&mutex[2]) == 0);
    assert(pthread_mutex_unlock(&mutex[2]) == 0);
    assert(pthread_mutex_destroy(&mutex[2]) == 0);
  
    order[0]=0;
    order[1]=2;
    order[2]=1;
    lockCount = 0;
    assert(pthread_mutex_init(&mutex[0], &ma) == 0);
    assert(pthread_mutex_init(&mutex[1], &ma) == 0);
    assert(pthread_mutex_init(&mutex[2], &ma) == 0);
    assert(pthread_create(&to, NULL, owner, NULL) == 0);
    Sleep(100);
    assert(pthread_create(&ti, NULL, inheritor, (void *)order) == 0);
    assert(pthread_join(to, NULL) == 0);
    assert(pthread_join(ti, NULL) == 0);
    assert(lockCount == 6);
    assert(pthread_mutex_lock(&mutex[0]) == 0);
    assert(pthread_mutex_unlock(&mutex[0]) == 0);
    assert(pthread_mutex_destroy(&mutex[0]) == 0);
    assert(pthread_mutex_lock(&mutex[1]) == 0);
    assert(pthread_mutex_unlock(&mutex[1]) == 0);
    assert(pthread_mutex_destroy(&mutex[1]) == 0);
    assert(pthread_mutex_lock(&mutex[2]) == 0);
    assert(pthread_mutex_unlock(&mutex[2]) == 0);
    assert(pthread_mutex_destroy(&mutex[2]) == 0);
  
    order[0]=2;
    order[1]=1;
    order[2]=0;
    lockCount = 0;
    assert(pthread_mutex_init(&mutex[0], &ma) == 0);
    assert(pthread_mutex_init(&mutex[1], &ma) == 0);
    assert(pthread_mutex_init(&mutex[2], &ma) == 0);
    assert(pthread_create(&to, NULL, owner, NULL) == 0);
    Sleep(100);
    assert(pthread_create(&ti, NULL, inheritor, (void *)order) == 0);
    assert(pthread_join(to, NULL) == 0);
    assert(pthread_join(ti, NULL) == 0);
    assert(lockCount == 6);
    assert(pthread_mutex_lock(&mutex[0]) == 0);
    assert(pthread_mutex_unlock(&mutex[0]) == 0);
    assert(pthread_mutex_destroy(&mutex[0]) == 0);
    assert(pthread_mutex_lock(&mutex[1]) == 0);
    assert(pthread_mutex_unlock(&mutex[1]) == 0);
    assert(pthread_mutex_destroy(&mutex[1]) == 0);
    assert(pthread_mutex_lock(&mutex[2]) == 0);
    assert(pthread_mutex_unlock(&mutex[2]) == 0);
    assert(pthread_mutex_destroy(&mutex[2]) == 0);
  
    assert(pthread_mutexattr_destroy(&ma) == 0);
  
    return 0;
  }
  