| /* |
| * Copyright (c) 2010, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of Texas Instruments Incorporated nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * @file timm_osal_task.c |
| * This file contains methods that provides the functionality |
| * for creating/destroying tasks. |
| * |
| * @path \ |
| * |
| */ |
| /* -------------------------------------------------------------------------- */ |
| /* ========================================================================= |
| *! |
| *! Revision History |
| *! =================================== |
| *! 21-Oct-2008 Maiya ShreeHarsha: Linux specific changes |
| *! 0.1: Created the first draft version, ksrini@ti.com |
| * ========================================================================= */ |
| |
| /****************************************************************************** |
| * Includes |
| ******************************************************************************/ |
| |
| #include <stdio.h> |
| #include <pthread.h> /*for POSIX calls */ |
| #include <sched.h> /*for sched structure */ |
| #include <unistd.h> |
| |
| |
| |
| #include "timm_osal_types.h" |
| #include "timm_osal_trace.h" |
| #include "timm_osal_error.h" |
| #include "timm_osal_memory.h" |
| #include "timm_osal_task.h" |
| |
| |
| |
| |
| /** |
| * TIMM_OSAL_TASK describe the different task information |
| */ |
| typedef struct TIMM_OSAL_TASK |
| { |
| pthread_t threadID; /*SHM check */ |
| /* To set the priority and stack size */ |
| pthread_attr_t ThreadAttr; /*For setting the priority and stack size */ |
| /** Name of the task */ |
| /* TIMM_OSAL_S8 name[8];*//* eight character plus null char */ |
| /** Pointer to the task stack memory */ |
| /* TIMM_OSAL_PTR stackPtr;*/ |
| /** Size of the task stack */ |
| /* TIMM_OSAL_S32 stackSize;*/ |
| /*parameters to the task */ |
| TIMM_OSAL_U32 uArgc; |
| TIMM_OSAL_PTR pArgv; |
| /** task priority */ |
| /* TIMM_OSAL_S32 priority;*/ |
| /** flag to check if task got created */ |
| TIMM_OSAL_BOOL isCreated; |
| } TIMM_OSAL_TASK; |
| |
| |
| /****************************************************************************** |
| * Function Prototypes |
| ******************************************************************************/ |
| |
| |
| /* ========================================================================== */ |
| /** |
| * @fn TIMM_OSAL_CreateTask function |
| * |
| * @see |
| */ |
| /* ========================================================================== */ |
| |
| TIMM_OSAL_ERRORTYPE TIMM_OSAL_CreateTask(TIMM_OSAL_PTR * pTask, |
| TIMM_OSAL_TaskProc pFunc, |
| TIMM_OSAL_U32 uArgc, |
| TIMM_OSAL_PTR pArgv, |
| TIMM_OSAL_U32 uStackSize, TIMM_OSAL_U32 uPriority, TIMM_OSAL_S8 * pName) |
| { |
| |
| TIMM_OSAL_ERRORTYPE bReturnStatus = TIMM_OSAL_ERR_UNKNOWN; |
| TIMM_OSAL_TASK *pHandle = TIMM_OSAL_NULL; |
| struct sched_param sched; |
| size_t stackSize; |
| *pTask = TIMM_OSAL_NULL; |
| |
| |
| /*Task structure allocation */ |
| pHandle = |
| (TIMM_OSAL_TASK *) TIMM_OSAL_Malloc(sizeof(TIMM_OSAL_TASK), 0, 0, |
| 0); |
| if (pHandle == TIMM_OSAL_NULL) |
| { |
| bReturnStatus = TIMM_OSAL_ERR_ALLOC; |
| goto EXIT; |
| } |
| |
| /* Initial cleaning of the task structure */ |
| TIMM_OSAL_Memset((TIMM_OSAL_PTR) pHandle, 0, sizeof(TIMM_OSAL_TASK)); |
| |
| /*Arguments for task */ |
| pHandle->uArgc = uArgc; |
| pHandle->pArgv = pArgv; |
| |
| pHandle->isCreated = TIMM_OSAL_FALSE; |
| |
| |
| if (SUCCESS != pthread_attr_init(&pHandle->ThreadAttr)) |
| { |
| /*TIMM_OSAL_Error("Task Init Attr Init failed!"); */ |
| goto EXIT; |
| } |
| /* Updation of the priority and the stack size */ |
| |
| if (SUCCESS != pthread_attr_getschedparam(&pHandle->ThreadAttr, |
| &sched)) |
| { |
| /*TIMM_OSAL_Error("Task Init Get Sched Params failed!"); */ |
| goto EXIT; |
| } |
| |
| sched.sched_priority = uPriority; /* relative to the default priority */ |
| if (SUCCESS != pthread_attr_setschedparam(&pHandle->ThreadAttr, |
| &sched)) |
| { |
| /*TIMM_OSAL_Error("Task Init Set Sched Paramsfailed!"); */ |
| goto EXIT; |
| } |
| |
| /*First get the default stack size */ |
| if (SUCCESS != pthread_attr_getstacksize(&pHandle->ThreadAttr, |
| &stackSize)) |
| { |
| /*TIMM_OSAL_Error("Task Init Set Stack Size failed!"); */ |
| goto EXIT; |
| } |
| |
| /*Check if requested stack size is larger than the current default stack size */ |
| if (uStackSize > stackSize) |
| { |
| stackSize = uStackSize; |
| if (SUCCESS != pthread_attr_setstacksize(&pHandle->ThreadAttr, |
| stackSize)) |
| { |
| /*TIMM_OSAL_Error("Task Init Set Stack Size failed!"); */ |
| goto EXIT; |
| } |
| } |
| |
| |
| |
| if (SUCCESS != pthread_create(&pHandle->threadID, |
| &pHandle->ThreadAttr, pFunc, pArgv)) |
| { |
| /*TIMM_OSAL_Error ("Create_Task failed !"); */ |
| goto EXIT; |
| } |
| |
| |
| /* Task was successfully created */ |
| pHandle->isCreated = TIMM_OSAL_TRUE; |
| *pTask = (TIMM_OSAL_PTR) pHandle; |
| bReturnStatus = TIMM_OSAL_ERR_NONE; |
| /**pTask = (TIMM_OSAL_PTR *)pHandle;*/ |
| |
| EXIT: |
| /* if((TIMM_OSAL_ERR_NONE != bReturnStatus) && (TIMM_OSAL_NULL != pHandle)) { |
| TIMM_OSAL_Free (pHandle->stackPtr);*/ |
| if ((TIMM_OSAL_ERR_NONE != bReturnStatus)) |
| { |
| TIMM_OSAL_Free(pHandle); |
| } |
| return bReturnStatus; |
| |
| } |
| |
| /* ========================================================================== */ |
| /** |
| * @fn TIMM_OSAL_DeleteTask |
| * |
| * @see |
| */ |
| /* ========================================================================== */ |
| |
| TIMM_OSAL_ERRORTYPE TIMM_OSAL_DeleteTask(TIMM_OSAL_PTR pTask) |
| { |
| TIMM_OSAL_ERRORTYPE bReturnStatus = TIMM_OSAL_ERR_UNKNOWN; |
| |
| TIMM_OSAL_TASK *pHandle = (TIMM_OSAL_TASK *) pTask; |
| void *retVal; |
| |
| if ((NULL == pHandle) || (TIMM_OSAL_TRUE != pHandle->isCreated)) |
| { |
| /* this task was never created */ |
| bReturnStatus = TIMM_OSAL_ERR_PARAMETER; |
| goto EXIT; |
| } |
| if (pthread_attr_destroy(&pHandle->ThreadAttr)) |
| { |
| /*TIMM_OSAL_Error("Delete_Task failed !"); */ |
| goto EXIT; |
| } |
| if (pthread_join(pHandle->threadID, &retVal)) |
| { |
| /*TIMM_OSAL_Error("Delete_Task failed !"); */ |
| goto EXIT; |
| /* bReturnStatus = TIMM_OSAL_ERR_CREATE(TIMM_OSAL_ERR, TIMM_OSAL_COMP_TASK, status);*//*shm to be done */ |
| } |
| bReturnStatus = TIMM_OSAL_ERR_NONE; |
| TIMM_OSAL_Free(pHandle); |
| EXIT: |
| return bReturnStatus; |
| } |
| |
| |
| TIMM_OSAL_ERRORTYPE TIMM_OSAL_SleepTask(TIMM_OSAL_U32 mSec) |
| { |
| TIMM_OSAL_S32 nReturn = 0; |
| |
| #ifdef _POSIX_VERSION_1_ |
| usleep(1000 * mSec); |
| #else |
| nReturn = usleep(1000 * mSec); |
| #endif |
| if (nReturn == 0) |
| return TIMM_OSAL_ERR_NONE; |
| else |
| return TIMM_OSAL_ERR_UNKNOWN; |
| } |