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75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/*
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* Copyright (c) 2008 Niels Provos <provos@citi.umich.edu>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _EVTHREAD_INTERNAL_H_
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#define _EVTHREAD_INTERNAL_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "config.h"
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enum evthread_locks {
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EVTHREAD_BASE_LOCK = 0,
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EVTHREAD_NUM_LOCKS = 1
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};
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struct event_base;
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#ifndef DISABLE_THREAD_SUPPORT
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#define EVTHREAD_USE_LOCKS(base) \
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((base)->th_lock != NULL)
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#define EVTHREAD_IN_THREAD(base) \
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((base)->th_get_id == NULL || \
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(base)->th_owner_id == (*(base)->th_get_id)())
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#define EVTHREAD_GET_ID(base) \
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(*(base)->th_get_id)()
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#define EVTHREAD_ACQUIRE_LOCK(base, mode, lock) do { \
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if (EVTHREAD_USE_LOCKS(base)) \
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(*(base)->th_lock)(EVTHREAD_LOCK | mode, lock); \
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} while (0)
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#define EVTHREAD_RELEASE_LOCK(base, mode, lock) do { \
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if (EVTHREAD_USE_LOCKS(base)) \
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(*(base)->th_lock)(EVTHREAD_UNLOCK | mode, lock); \
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} while (0)
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#else /* DISABLE_THREAD_SUPPORT */
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#define EVTHREAD_USE_LOCKS(base)
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#define EVTHREAD_IN_THREAD(base) 1
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#define EVTHREAD_GET_ID(base)
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#define EVTHREAD_ACQUIRE_LOCK(base, mode, lock)
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#define EVTHREAD_RELEASE_LOCK(base, mode, lock)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _EVTHREAD_INTERNAL_H_ */
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