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condition.h
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mutex.h
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once.h
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thread.h
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Editing: condition.h
/* * 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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