mutex.h revision 9c3531d72aeaad6c5f01efe6a1c82023e1379e4d
/*
* Copyright (C) 1998-2000 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* $Id: mutex.h,v 1.14 2000/06/22 21:58:24 tale Exp $ */
#ifndef ISC_MUTEX_H
#define ISC_MUTEX_H 1
#include <pthread.h>
#include <isc/result.h> /* for ISC_R_ codes */
typedef pthread_mutex_t isc_mutex_t;
/* XXX We could do fancier error handling... */
#define isc_mutex_init(mp) \
((pthread_mutex_init((mp), NULL) == 0) ? \
ISC_R_SUCCESS : ISC_R_UNEXPECTED)
#define isc_mutex_lock(mp) \
((pthread_mutex_lock((mp)) == 0) ? \
ISC_R_SUCCESS : ISC_R_UNEXPECTED)
#define isc_mutex_unlock(mp) \
((pthread_mutex_unlock((mp)) == 0) ? \
ISC_R_SUCCESS : ISC_R_UNEXPECTED)
#define isc_mutex_trylock(mp) \
((pthread_mutex_trylock((mp)) == 0) ? \
ISC_R_SUCCESS : ISC_R_LOCKBUSY)
#define isc_mutex_destroy(mp) \
((pthread_mutex_destroy((mp)) == 0) ? \
ISC_R_SUCCESS : ISC_R_UNEXPECTED)
#endif /* ISC_MUTEX_H */