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/* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and/or associated documentation files (the
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* "Materials"), to deal in the Materials without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Materials, and to
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* permit persons to whom the Materials are furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Materials.
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*
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* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*/
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#include <errno.h>
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#include <time.h>
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#include <semaphore.h>
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#include <stdlib.h>
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#include "owfsemaphore.h"
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#include "owfmemory.h"
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#define SEM(x) (sem_t*)(*x)
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OWF_API_CALL OWFint
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OWF_Semaphore_Init(OWF_SEMAPHORE* sem, OWFint val)
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{
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*sem = xalloc(1, sizeof(sem_t));
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if (!*sem) {
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return ENOMEM;
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}
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return sem_init(SEM(sem), 0, val);
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}
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OWF_API_CALL OWFint
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OWF_Semaphore_Wait(OWF_SEMAPHORE* sem)
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{
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if (!*sem) {
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return EINVAL;
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}
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return sem_wait(SEM(sem));
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}
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OWF_API_CALL OWFint
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OWF_Semaphore_TryWait(OWF_SEMAPHORE* sem)
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{
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if (!*sem) {
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return EINVAL;
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}
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return sem_trywait(SEM(sem));
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}
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OWF_API_CALL void
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OWF_Semaphore_Post(OWF_SEMAPHORE* sem)
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{
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if (!*sem) {
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return;
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}
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sem_post(SEM(sem));
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}
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OWF_API_CALL OWFint
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OWF_Semaphore_GetValue(OWF_SEMAPHORE* sem, OWFint* val)
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{
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if (!*sem) {
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return EINVAL;
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}
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return sem_getvalue(SEM(sem), (int *)val);
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}
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OWF_API_CALL OWFint
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OWF_Semaphore_Destroy(OWF_SEMAPHORE* sem)
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{
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OWFint err = EINVAL;
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if (*sem) {
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err = sem_destroy(SEM(sem));
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xfree(*sem);
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*sem = NULL;
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}
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return err;
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}
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