text: /* 
   * mutex1d.c
   *
   * As for mutex1.c but with type set to PTHREAD_MUTEX_DEFAULT.
   *
   * Create a simple mutex object, lock it, unlock it, then destroy it.
   * This is the simplest test of the pthread mutex family that we can do.
   *
   * Depends on API functions:
   *	pthread_mutexattr_settype()
   * 	pthread_mutex_init()
   *	pthread_mutex_destroy()
   */
  
  #include "test.h"
  
  pthread_mutex_t mutex = NULL;
  pthread_mutexattr_t mxAttr;
  
  int
  main()
  {
    assert(pthread_mutexattr_init(&mxAttr) == 0);
  
    assert(pthread_mutexattr_settype(&mxAttr, PTHREAD_MUTEX_DEFAULT) == 0);
  
    assert(mutex == NULL);
  
    assert(pthread_mutex_init(&mutex, &mxAttr) == 0);
  
    assert(mutex != NULL);
  
    assert(pthread_mutex_lock(&mutex) == 0);
  
    assert(pthread_mutex_unlock(&mutex) == 0);
  
    assert(pthread_mutex_destroy(&mutex) == 0);
  
    assert(mutex == NULL);
  
    return 0;
  }
  