67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/* microkernel/semaphore.h - microkernel semaphore header file */
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/*
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* Copyright (c) 1997-2010, 2012-2014 Wind River Systems, Inc.
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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 are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SEMAPHORE_H
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#define _SEMAPHORE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <microkernel/command_packet.h>
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extern void isr_sem_give(ksem_t sema, struct cmd_pkt_set *pSet);
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extern void fiber_sem_give(ksem_t sema, struct cmd_pkt_set *pSet);
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extern void task_sem_give(ksem_t sema);
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extern void task_sem_group_give(ksemg_t semagroup);
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extern int task_sem_count_get(ksem_t sema);
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extern void task_sem_reset(ksem_t sema);
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extern void task_sem_group_reset(ksemg_t semagroup);
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extern int _task_sem_take(ksem_t sema, int32_t time);
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extern ksem_t _task_sem_group_take(ksemg_t semagroup, int32_t time);
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#define task_sem_take(s) _task_sem_take(s, TICKS_NONE)
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#define task_sem_take_wait(s) _task_sem_take(s, TICKS_UNLIMITED)
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#define task_sem_group_take_wait(g) _task_sem_group_take(g, TICKS_UNLIMITED)
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#ifdef CONFIG_SYS_CLOCK_EXISTS
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#define task_sem_take_wait_timeout(s, t) _task_sem_take(s, t)
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#define task_sem_group_take_wait_timeout(g, t) _task_sem_group_take(g, t)
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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 /* _SEMAPHORE_H */
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