kc3-lang/libevent/evthread_win32.c

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

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

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• evthread_win32.c

• #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #ifdef WIN32
  #include <winsock2.h>
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>
  #undef WIN32_LEAN_AND_MEAN
  #endif
  
  struct event_base;
  #include <event2/thread.h>
  
  static void *
  evthread_win32_lock_create(void)
  {
  	CRITICAL_SECTION *lock = mm_malloc(sizeof(CRITICAL_SECTION));
  	if (!lock)
  		return NULL;
  	InitializeCriticalSection(lock);
  	return lock;
  }
  
  static void
  evthread_win32_lock_free(void *_lock)
  {
  	CRITICAL_SECTION *lock = _lock;
  	DeleteCriticalSection(lock);
  }
  
  static void
  evthread_win32_lock(int mode, void *_lock)
  {
  	CRITICAL_SECTION *lock = _lock;
  	if (0 != (mode & EVTHREAD_LOCK))
  		EnterCriticalSection(lock);
  	else
  		LeaveCriticalSection(lock);
  }
  
  static unsigned long
  evthread_win32_get_id(void)
  {
  	return (unsigned long) GetCurrentThreadId();
  }
  
  int
  evthread_use_windows_threads(struct event_base *base)
  {
  	evthread_set_lock_create_callbacks(base,
  									   evthread_win32_lock_create,
  									   evthread_win32_lock_free);
  	evthread_set_locking_callback(base, evthread_win32_lock);
  	evthread_set_id_callback(base, evthread_win32_get_id);
  	return 0;
  }
  
  

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