kc3-lang/libevent/evthread-internal.h

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• Hash : b85b710c
  Author :
  Date : 2009-01-27T22:34:36
  

  Update copyright statements to reflect the facts that:
  a) this is 2009
  b) niels and nick have been comaintainers for a while
  c) saying "all rights reserved" when you then go on to explicitly
     disclaim some rights is sheer cargo-cultism.
  
  svn:r1065
  

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• evthread-internal.h

• /*
   * Copyright (c) 2008 Niels Provos <provos@citi.umich.edu>
   *
   * 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.
   */
  #ifndef _EVTHREAD_INTERNAL_H_
  #define _EVTHREAD_INTERNAL_H_
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include "event-config.h"
  
  struct event_base;
  #ifndef _EVENT_DISABLE_THREAD_SUPPORT
  #define EVTHREAD_USE_LOCKS(base) \
  	(base != NULL && (base)->th_lock != NULL)
  
  #define EVTHREAD_IN_THREAD(base) \
  	((base)->th_get_id == NULL || \
  	(base)->th_owner_id == (*(base)->th_get_id)())
  
  #define EVTHREAD_GET_ID(base) \
  	(*(base)->th_get_id)()
  
  #define EVTHREAD_ACQUIRE_LOCK(base, mode, lock) do {	\
  		if (EVTHREAD_USE_LOCKS(base))		\
  			(*(base)->th_lock)(EVTHREAD_LOCK | mode, \
  			    (base)->lock);			 \
  	} while (0)
  
  #define EVTHREAD_RELEASE_LOCK(base, mode, lock) do {	\
  		if (EVTHREAD_USE_LOCKS(base))		\
  			(*(base)->th_lock)(EVTHREAD_UNLOCK | mode, \
  			    (base)->lock);			   \
  	} while (0)
  #else /* _EVENT_DISABLE_THREAD_SUPPORT */
  #define EVTHREAD_USE_LOCKS(base)
  #define EVTHREAD_IN_THREAD(base)	1
  #define EVTHREAD_GET_ID(base)
  #define EVTHREAD_ACQUIRE_LOCK(base, mode, lock)
  #define EVTHREAD_RELEASE_LOCK(base, mode, lock)
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _EVTHREAD_INTERNAL_H_ */
  

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