/contrib/bind9/lib/isc/nothreads/include/isc/condition.h
https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 59 lines · 19 code · 13 blank · 27 comment · 1 complexity · cd895b337122c7bd97d54d6d81611875 MD5 · raw file
- /*
- * 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 */