BIND9 Internals: lib/isc/pthreads/include/isc/condition.h Source File

00001 /*
00002  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
00003  * Copyright (C) 1998-2001  Internet Software Consortium.
00004  *
00005  * Permission to use, copy, modify, and/or distribute this software for any
00006  * purpose with or without fee is hereby granted, provided that the above
00007  * copyright notice and this permission notice appear in all copies.
00008  *
00009  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
00010  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
00011  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
00012  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
00013  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
00014  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
00015  * PERFORMANCE OF THIS SOFTWARE.
00016  */
00017 
00018 /* $Id: condition.h,v 1.26 2007/06/19 23:47:18 tbox Exp $ */
00019 
00020 #ifndef ISC_CONDITION_H
00021 #define ISC_CONDITION_H 1
00022 
00023 /*! \file */
00024 
00025 #include <isc/lang.h>
00026 #include <isc/mutex.h>
00027 #include <isc/result.h>
00028 #include <isc/types.h>
00029 
00030 typedef pthread_cond_t isc_condition_t;
00031 
00032 #define isc_condition_init(cp) \
00033         ((pthread_cond_init((cp), NULL) == 0) ? \
00034          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00035 
00036 #if ISC_MUTEX_PROFILE
00037 #define isc_condition_wait(cp, mp) \
00038         ((pthread_cond_wait((cp), &((mp)->mutex)) == 0) ? \
00039          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00040 #else
00041 #define isc_condition_wait(cp, mp) \
00042         ((pthread_cond_wait((cp), (mp)) == 0) ? \
00043          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00044 #endif
00045 
00046 #define isc_condition_signal(cp) \
00047         ((pthread_cond_signal((cp)) == 0) ? \
00048          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00049 
00050 #define isc_condition_broadcast(cp) \
00051         ((pthread_cond_broadcast((cp)) == 0) ? \
00052          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00053 
00054 #define isc_condition_destroy(cp) \
00055         ((pthread_cond_destroy((cp)) == 0) ? \
00056          ISC_R_SUCCESS : ISC_R_UNEXPECTED)
00057 
00058 ISC_LANG_BEGINDECLS
00059 
00060 isc_result_t
00061 isc_condition_waituntil(isc_condition_t *, isc_mutex_t *, isc_time_t *);
00062 
00063 ISC_LANG_ENDDECLS
00064 
00065 #endif /* ISC_CONDITION_H */