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https://github.com/zephyrproject-rtos/zephyr
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103e84abcb
The revised option name more accurately describes its purpose, and avoids potential confusion with the microkernel's tickless idle capability. Also, inverting the "polarity" of the option means that conditional code that references it does not have to use negative logic, which make the code easier to comprehend. Change-Id: I0c6f82f077a87a28544048d214efa7020939e566 Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/* microkernel/sema.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 SEMA_H
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#define SEMA_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <microkernel/cmdPkt.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 /* SEMA_H */
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