1/* 2 * 3 * Copyright 2012 Samsung Electronics S.LSI Co. LTD 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18/* 19 * @file Exynos_OSAL_Semaphore.c 20 * @brief 21 * @author SeungBeom Kim (sbcrux.kim@samsung.com) 22 * @version 2.0.0 23 * @history 24 * 2012.02.20 : Create 25 */ 26 27#include <stdio.h> 28#include <stdlib.h> 29#include <string.h> 30#include <pthread.h> 31#include <semaphore.h> 32 33#include "Exynos_OSAL_Memory.h" 34#include "Exynos_OSAL_Semaphore.h" 35 36#undef EXYNOS_LOG_TAG 37#define EXYNOS_LOG_TAG "EXYNOS_LOG_SEMA" 38#define EXYNOS_LOG_OFF 39#include "Exynos_OSAL_Log.h" 40 41 42OMX_ERRORTYPE Exynos_OSAL_SemaphoreCreate(OMX_HANDLETYPE *semaphoreHandle) 43{ 44 sem_t *sema; 45 46 sema = (sem_t *)Exynos_OSAL_Malloc(sizeof(sem_t)); 47 if (!sema) 48 return OMX_ErrorInsufficientResources; 49 50 if (sem_init(sema, 0, 0) != 0) { 51 Exynos_OSAL_Free(sema); 52 return OMX_ErrorUndefined; 53 } 54 55 *semaphoreHandle = (OMX_HANDLETYPE)sema; 56 return OMX_ErrorNone; 57} 58 59OMX_ERRORTYPE Exynos_OSAL_SemaphoreTerminate(OMX_HANDLETYPE semaphoreHandle) 60{ 61 sem_t *sema = (sem_t *)semaphoreHandle; 62 63 if (sema == NULL) 64 return OMX_ErrorBadParameter; 65 66 if (sem_destroy(sema) != 0) 67 return OMX_ErrorUndefined; 68 69 Exynos_OSAL_Free(sema); 70 return OMX_ErrorNone; 71} 72 73OMX_ERRORTYPE Exynos_OSAL_SemaphoreWait(OMX_HANDLETYPE semaphoreHandle) 74{ 75 sem_t *sema = (sem_t *)semaphoreHandle; 76 77 FunctionIn(); 78 79 if (sema == NULL) 80 return OMX_ErrorBadParameter; 81 82 if (sem_wait(sema) != 0) 83 return OMX_ErrorUndefined; 84 85 FunctionOut(); 86 87 return OMX_ErrorNone; 88} 89 90OMX_ERRORTYPE Exynos_OSAL_SemaphorePost(OMX_HANDLETYPE semaphoreHandle) 91{ 92 sem_t *sema = (sem_t *)semaphoreHandle; 93 94 FunctionIn(); 95 96 if (sema == NULL) 97 return OMX_ErrorBadParameter; 98 99 if (sem_post(sema) != 0) 100 return OMX_ErrorUndefined; 101 102 FunctionOut(); 103 104 return OMX_ErrorNone; 105} 106 107OMX_ERRORTYPE Exynos_OSAL_Set_SemaphoreCount(OMX_HANDLETYPE semaphoreHandle, OMX_S32 val) 108{ 109 sem_t *sema = (sem_t *)semaphoreHandle; 110 111 if (sema == NULL) 112 return OMX_ErrorBadParameter; 113 114 if (sem_init(sema, 0, val) != 0) 115 return OMX_ErrorUndefined; 116 117 return OMX_ErrorNone; 118} 119 120OMX_ERRORTYPE Exynos_OSAL_Get_SemaphoreCount(OMX_HANDLETYPE semaphoreHandle, OMX_S32 *val) 121{ 122 sem_t *sema = (sem_t *)semaphoreHandle; 123 int semaVal = 0; 124 125 if (sema == NULL) 126 return OMX_ErrorBadParameter; 127 128 if (sem_getvalue(sema, &semaVal) != 0) 129 return OMX_ErrorUndefined; 130 131 *val = (OMX_S32)semaVal; 132 133 return OMX_ErrorNone; 134} 135