kc3-lang/libevent/evthread_pthread.c

• Show log

  Commit

• Hash : 309fc7c4
  Author :
  Date : 2009-01-21T07:51:25
  

  New functions to provide sane threading callbacks with pthreads and win32 threading implementations.
  
  svn:r1031
  

Download

• evthread_pthread.c

• #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #include <pthread.h>
  struct event_base;
  #include <event2/thread.h>
  
  #include "mm-internal.h"
  
  static void *
  evthread_posix_lock_create(void)
  {
  	pthread_mutex_t *lock = mm_malloc(sizeof(pthread_mutex_t));
  	if (!lock)
  		return NULL;
  	pthread_mutex_init(lock, NULL);
  	return lock;
  }
  
  static void
  evthread_posix_lock_free(void *_lock)
  {
  	pthread_mutex_t *lock = _lock;
  	pthread_mutex_destroy(lock);
  	mm_free(lock);
  }
  
  static void
  evthread_posix_lock(int mode, void *_lock)
  {
  	pthread_mutex_t *lock = _lock;
  	if (0 != (mode & EVTHREAD_LOCK))
  		pthread_mutex_lock(lock);
  	else
  		pthread_mutex_unlock(lock);
  }
  
  static unsigned long
  evthread_posix_get_id(void)
  {
  	union {
  		pthread_t thr;
  		unsigned long id;
  	} r;
  	r.thr = pthread_self();
  	return r.id;
  }
  
  int
  evthread_use_pthreads(struct event_base *base)
  {
  	evthread_set_lock_create_callbacks(base,
  									   evthread_posix_lock_create,
  									   evthread_posix_lock_free);
  	evthread_set_locking_callback(base, evthread_posix_lock);
  	evthread_set_id_callback(base, evthread_posix_get_id);
  	return -1;
  }
  

Download