61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _FUTEX_SYNCHRO_H
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#define _FUTEX_SYNCHRO_H
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#ifndef HAVE_FUTEX
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#error "HAVE_FUTEX not defined"
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#endif
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#define FUTEX_WAIT_INFINITE (0)
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typedef struct futex_mutex_t futex_mutex_t;
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struct futex_mutex_t
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{
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volatile int value;
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};
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typedef struct futex_cond_t futex_cond_t;
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struct futex_cond_t
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{
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volatile int value;
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};
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#if __cplusplus
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extern "C" {
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#endif
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void futex_mutex_init(futex_mutex_t *m);
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int futex_mutex_lock(futex_mutex_t *m, unsigned msec);
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void futex_mutex_unlock(futex_mutex_t *m);
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int futex_mutex_trylock(futex_mutex_t *m);
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void futex_cond_init(futex_cond_t *c);
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int futex_cond_wait(futex_cond_t *c, futex_mutex_t *m, unsigned msec);
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void futex_cond_signal(futex_cond_t *c);
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void futex_cond_broadcast(futex_cond_t *c);
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#if __cplusplus
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} // extern "C"
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#endif
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#endif // _FUTEX_SYNCHRO_H
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