1 /* 2 * 3 * Copyright 2010 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 SEC_OSAL_Semaphore.c 20 * @brief 21 * @author SeungBeom Kim (sbcrux.kim (at) samsung.com) 22 * @version 1.0 23 * @history 24 * 2010.7.15 : 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 "SEC_OSAL_Memory.h" 34 #include "SEC_OSAL_Semaphore.h" 35 36 #undef SEC_LOG_TAG 37 #define SEC_LOG_TAG "SEC_LOG_SEMA" 38 #define SEC_LOG_OFF 39 #include "SEC_OSAL_Log.h" 40 41 42 OMX_ERRORTYPE SEC_OSAL_SemaphoreCreate(OMX_HANDLETYPE *semaphoreHandle) 43 { 44 sem_t *sema; 45 46 sema = (sem_t *)SEC_OSAL_Malloc(sizeof(sem_t)); 47 if (!sema) 48 return OMX_ErrorInsufficientResources; 49 50 if (sem_init(sema, 0, 0) != 0) 51 return OMX_ErrorUndefined; 52 53 *semaphoreHandle = (OMX_HANDLETYPE)sema; 54 return OMX_ErrorNone; 55 } 56 57 OMX_ERRORTYPE SEC_OSAL_SemaphoreTerminate(OMX_HANDLETYPE semaphoreHandle) 58 { 59 sem_t *sema = (sem_t *)semaphoreHandle; 60 61 if (sema == NULL) 62 return OMX_ErrorBadParameter; 63 64 if (sem_destroy(sema) != 0) 65 return OMX_ErrorUndefined; 66 67 SEC_OSAL_Free(sema); 68 return OMX_ErrorNone; 69 } 70 71 OMX_ERRORTYPE SEC_OSAL_SemaphoreWait(OMX_HANDLETYPE semaphoreHandle) 72 { 73 sem_t *sema = (sem_t *)semaphoreHandle; 74 75 FunctionIn(); 76 77 if (sema == NULL) 78 return OMX_ErrorBadParameter; 79 80 if (sem_wait(sema) != 0) 81 return OMX_ErrorUndefined; 82 83 FunctionOut(); 84 85 return OMX_ErrorNone; 86 } 87 88 OMX_ERRORTYPE SEC_OSAL_SemaphorePost(OMX_HANDLETYPE semaphoreHandle) 89 { 90 sem_t *sema = (sem_t *)semaphoreHandle; 91 92 FunctionIn(); 93 94 if (sema == NULL) 95 return OMX_ErrorBadParameter; 96 97 if (sem_post(sema) != 0) 98 return OMX_ErrorUndefined; 99 100 FunctionOut(); 101 102 return OMX_ErrorNone; 103 } 104 105 OMX_ERRORTYPE SEC_OSAL_Set_SemaphoreCount(OMX_HANDLETYPE semaphoreHandle, OMX_S32 val) 106 { 107 sem_t *sema = (sem_t *)semaphoreHandle; 108 109 if (sema == NULL) 110 return OMX_ErrorBadParameter; 111 112 if (sem_init(sema, 0, val) != 0) 113 return OMX_ErrorUndefined; 114 115 return OMX_ErrorNone; 116 } 117 118 OMX_ERRORTYPE SEC_OSAL_Get_SemaphoreCount(OMX_HANDLETYPE semaphoreHandle, OMX_S32 *val) 119 { 120 sem_t *sema = (sem_t *)semaphoreHandle; 121 OMX_U32 semaVal = 0; 122 123 if (sema == NULL) 124 return OMX_ErrorBadParameter; 125 126 if (sem_getvalue(sema, &semaVal) != 0) 127 return OMX_ErrorUndefined; 128 129 *val = semaVal; 130 131 return OMX_ErrorNone; 132 } 133