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/*
* Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC 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: condition.h,v 1.6 2007/06/19 23:47:18 tbox Exp $ */
/*
* This provides a limited subset of the isc_condition_t
* functionality for use by single-threaded programs that
* need to block waiting for events. Only a single
* call to isc_condition_wait() may be blocked at any given
* time, and the _waituntil and _broadcast functions are not
* supported. This is intended primarily for use by the omapi
* library, and may go away once omapi goes away. Use for
* other purposes is strongly discouraged.
*/
#ifndef ISC_CONDITION_H
#define ISC_CONDITION_H 1
#include <isc/mutex.h>
typedef int isc_condition_t;
isc_result_t isc__nothread_wait_hack(isc_condition_t *cp, isc_mutex_t *mp);
isc_result_t isc__nothread_signal_hack(isc_condition_t *cp);
#define isc_condition_init(cp) \
(*(cp) = 0, ISC_R_SUCCESS)
#define isc_condition_wait(cp, mp) \
isc__nothread_wait_hack(cp, mp)
#define isc_condition_waituntil(cp, mp, tp) \
((void)(cp), (void)(mp), (void)(tp), ISC_R_NOTIMPLEMENTED)
#define isc_condition_signal(cp) \
isc__nothread_signal_hack(cp)
#define isc_condition_broadcast(cp) \
((void)(cp), ISC_R_NOTIMPLEMENTED)
#define isc_condition_destroy(cp) \
(*(cp) == 0 ? (*(cp) = -1, ISC_R_SUCCESS) : ISC_R_UNEXPECTED)
#endif /* ISC_CONDITION_H */
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