kc3-lang/libevent/test/regress_pthread.c

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• Hash : 4ba6eda4
  Author :
  Date : 2009-07-17T20:22:56
  

  Make evthread_use_pthreads() actually return 0 on success.
  
  svn:r1356
  

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• test/regress_pthread.c

• /*
   * Copyright (c) 2007-2009 Niels Provos and Nick Mathewson
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifdef HAVE_CONFIG_H
  #include "event-config.h"
  #endif
  
  #include <sys/types.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  #include <pthread.h>
  #include <assert.h>
  
  #include "event2/util.h"
  #include "event2/event.h"
  #include "event2/event_struct.h"
  #include "event2/thread.h"
  #include "regress.h"
  #include "tinytest_macros.h"
  
  struct cond_wait {
  	pthread_mutex_t lock;
  	pthread_cond_t cond;
  };
  
  static void
  basic_timeout(int fd, short what, void *arg)
  {
  	struct cond_wait *cw = arg;
  	assert(pthread_mutex_lock(&cw->lock) == 0);
  	assert(pthread_cond_broadcast(&cw->cond) == 0);
  	assert(pthread_mutex_unlock(&cw->lock) == 0);
  }
  
  #define NUM_THREADS	100
  static pthread_mutex_t count_lock;
  static int count;
  
  static void *
  basic_thread(void *arg)
  {
  	struct cond_wait cw;
  	struct event_base *base = arg;
  	struct event ev;
  	int i = 0;
  
  	assert(pthread_mutex_init(&cw.lock, NULL) == 0);
  	assert(pthread_cond_init(&cw.cond, NULL) == 0);
  
  	evtimer_assign(&ev, base, basic_timeout, &cw);
  	for (i = 0; i < 100; i++) {
  		struct timeval tv;
  		evutil_timerclear(&tv);
  		assert(evtimer_add(&ev, &tv) == 0);
  
  		assert(pthread_mutex_lock(&cw.lock) == 0);
  		assert(pthread_cond_wait(&cw.cond, &cw.lock) == 0);
  		assert(pthread_mutex_unlock(&cw.lock) == 0);
  
  		assert(pthread_mutex_lock(&count_lock) == 0);
  		++count;
  		assert(pthread_mutex_unlock(&count_lock) == 0);
  	}
  
  	/* exit the loop only if all threads fired all timeouts */
  	assert(pthread_mutex_lock(&count_lock) == 0);
  	if (count >= NUM_THREADS * 100)
  		event_base_loopexit(base, NULL);
  	assert(pthread_mutex_unlock(&count_lock) == 0);
  
  	assert(pthread_cond_destroy(&cw.cond) == 0);
  	assert(pthread_mutex_destroy(&cw.lock) == 0);
  
  	return (NULL);
  }
  
  static void
  pthread_basic(struct event_base *base)
  {
  	pthread_t threads[NUM_THREADS];
  	struct event ev;
  	struct timeval tv;
  	int i;
  
  	for (i = 0; i < NUM_THREADS; ++i)
  		pthread_create(&threads[i], NULL, basic_thread, base);
  
  	evtimer_assign(&ev, base, NULL, NULL);
  	evutil_timerclear(&tv);
  	tv.tv_sec = 1000;
  	event_add(&ev, &tv);
  
  	event_base_dispatch(base);
  
  	for (i = 0; i < NUM_THREADS; ++i)
  		pthread_join(threads[i], NULL);
  
  	event_del(&ev);
  }
  
  void
  regress_threads(void *arg)
  {
  	struct event_base *base;
          (void) arg;
  
  	pthread_mutex_init(&count_lock, NULL);
  
          if (evthread_use_pthreads()<0)
  		tt_abort_msg("Couldn't initialize pthreads!");
  
          base = event_base_new();
          if (evthread_make_base_notifiable(base)<0) {
                  tt_abort_msg("Couldn't make base notifiable!");
          }
  
  	pthread_basic(base);
  
  	pthread_mutex_destroy(&count_lock);
  
  	event_base_free(base);
  end:
          ;
  }
  

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