/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** ************************************************************************ * @file M4OSA_Thread.c * @ingroup OSAL * @brief Implements and manipulate threads * @note This file implements functions to manipulate threads ************************************************************************ */ #include #include #include #include #include #include "M4OSA_Debug.h" #include "M4OSA_Memory.h" #include "M4OSA_Thread.h" #include "M4OSA_Thread_priv.h" #include "M4OSA_Mutex.h" #include "M4OSA_Semaphore.h" #include "M4OSA_CharStar.h" void* M4OSA_threadSyncForEverDo(void *context) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_Bool auto_kill = M4OSA_FALSE; /* M4OSA_Void* userData; */ M4OSA_TRACE2_1("M4OSA_threadSyncForEverDo\t\tLPVOID 0x%x", context); /* userData = threadContext->userData; */ M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); threadContext->state = M4OSA_kThreadRunning; M4OSA_semaphorePost(threadContext->semStartStop); while(threadContext->state == M4OSA_kThreadRunning) { M4OSA_mutexUnlock(threadContext->stateMutex); if((threadContext->func(threadContext->param)) != M4NO_ERROR) { M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); if(threadContext->state == M4OSA_kThreadRunning) { //PR 2354 - ACO : Suppress stopping state and don't // unlock mutex before closing the thread threadContext->state = M4OSA_kThreadOpened; M4OSA_mutexUnlock(threadContext->stateMutex); return 0; } M4OSA_mutexUnlock(threadContext->stateMutex); } M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); } M4OSA_semaphorePost(threadContext->semStartStop); M4OSA_mutexUnlock(threadContext->stateMutex); return 0; } /** ************************************************************************ * @brief This method creates a new thread. After this call the thread is * identified by its "context". The thread function is provided by * the "func" parameter. This function creates & allocates a unique * context. It's the OSAL real time responsibility for managing its * context. It must be freed by the M4OSA_threadSyncClose function. * The context parameter will be sent back to any OSAL core thread * functions to allow retrieving data associated to the opened * thread. * @note This function creates the thread, but the thread is not running. * @note Once the thread is created, the state is M4OSA_kThreadOpened. * @param context:(OUT) Context of the created thread * @param func:(IN) "doIt" function pointer to run * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_ALLOC: there is no more available memory * @return M4ERR_CONTEXT_FAILED: the context creation failed ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncOpen(M4OSA_Context* context, M4OSA_ThreadDoIt func) { M4OSA_ThreadContext* threadContext = M4OSA_NULL; M4OSA_ERR err_code; M4OSA_TRACE1_2("M4OSA_threadSyncOpen\t\tM4OSA_Context* 0x%x\t" "M4OSA_ThreadDoIt 0x%x", context, func); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncOpen"); M4OSA_DEBUG_IF2(func == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncOpen"); *context = M4OSA_NULL; threadContext = (M4OSA_ThreadContext*)M4OSA_32bitAlignedMalloc(sizeof(M4OSA_ThreadContext), M4OSA_THREAD, (M4OSA_Char*)"M4OSA_threadSyncOpen: thread context"); if(threadContext == M4OSA_NULL) { M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_threadSyncOpen"); return M4ERR_ALLOC; } threadContext->func = func; threadContext->stackSize = 64 * 1024; threadContext->name = M4OSA_NULL; threadContext->threadID = 0; threadContext->coreID = M4OSA_THREAD; threadContext->state = M4OSA_kThreadOpened; threadContext->priority = M4OSA_kThreadNormalPriority ; err_code = M4OSA_mutexOpen(&(threadContext->stateMutex)); if(M4OSA_ERR_IS_ERROR(err_code)) { M4OSA_DEBUG(err_code, "M4OSA_threadSyncOpen: M4OSA_mutexOpen"); return err_code; } err_code = M4OSA_semaphoreOpen(&(threadContext->semStartStop), 0); if(M4OSA_ERR_IS_ERROR(err_code)) { M4OSA_DEBUG(err_code, "M4OSA_threadSyncOpen: M4OSA_semaphoreOpen"); return err_code; } *context = threadContext; return M4NO_ERROR; } /** ************************************************************************ * @brief This method runs a specified thread. The "param" parameter * allows the application to set a specific parameter to the * created thread. This parameter will be used as the second one of * the "M4OSA_ThreadDoIt" function. * @note This method is a blocking up to the thread is running. * Before calling this method, the state is M4OSA_kThreadOpened. * Once the method is called, the state is M4OSA_kThreadStarting. * Once the thread is running, the state is M4OSA_kThreadRunning. * @note This method returns immediately. If the "threadStarted" optionID * is not NULL, the thread will call it before running the doIt * function. * @param context:(IN/OUT) Context of the thread * @param param:(IN) Application data thread parameter * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_BAD_CONTEXT: provided context is not a valid one * @return M4ERR_STATE: this function cannot be called now * @return M4ERR_THREAD_NOT_STARTED: the thread did not start ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncStart(M4OSA_Context context, M4OSA_Void* param) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; pthread_attr_t attribute = { 0, 0, 0, 0, 0, 0 }; int min = 0; int max = 0; int priority = 0; struct sched_param sched = { 0 }; M4OSA_TRACE1_2("M4OSA_threadSyncStart\t\tM4OSA_Context 0x%x\tM4OSA_Void* " "0x%x", context, param); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncStart"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncStart"); M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); if(threadContext->state != M4OSA_kThreadOpened) { M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncStart"); return M4ERR_STATE; } threadContext->state = M4OSA_kThreadStarting; M4OSA_mutexUnlock(threadContext->stateMutex); threadContext->param = param; if ( 0 == pthread_attr_init( &attribute ) ) { if ( 0 == pthread_attr_setdetachstate( &attribute, PTHREAD_CREATE_DETACHED ) ) { if ( 0 == pthread_attr_setstacksize( &attribute, (size_t)threadContext->stackSize ) ) { if ( 0 == pthread_attr_setschedpolicy( &attribute, SCHED_OTHER ) ) { /* Tentative patches to handle priorities in a better way : */ /* Use Android's predefined priorities (range +19..-20) *rather than Linux ones (0..99)*/ /* Get min and max priorities */ min = sched_get_priority_min( SCHED_FIFO ); max = sched_get_priority_max( SCHED_FIFO ); M4OSA_TRACE1_2("M4OSA_threadSyncStart MAX=%d MIN=%d", max, min); /* tentative modification of the priorities */ /* Set the priority based on default android priorities */ /* This probably requires some more tuning, * outcome of this priority settings are not yet satisfactory */ /* Implementing thread handling based on Android's thread creation * helpers might bring some improvement (see threads.h) */ switch(threadContext->priority) { case M4OSA_kThreadLowestPriority: priority = ANDROID_PRIORITY_NORMAL; break; case M4OSA_kThreadLowPriority: priority = ANDROID_PRIORITY_DISPLAY; break; case M4OSA_kThreadNormalPriority: priority = ANDROID_PRIORITY_URGENT_DISPLAY; break; case M4OSA_kThreadHighPriority: priority = ANDROID_PRIORITY_AUDIO; break; case M4OSA_kThreadHighestPriority: priority = ANDROID_PRIORITY_URGENT_AUDIO; break; } sched.sched_priority = priority; if ( 0 == pthread_attr_setschedparam( &attribute, &sched ) ) { if ( 0 == pthread_create( &threadContext->threadID, &attribute, &M4OSA_threadSyncForEverDo, (void *)threadContext ) ) { if ( M4OSA_FALSE == M4OSA_ERR_IS_ERROR( M4OSA_semaphoreWait( threadContext->semStartStop, M4OSA_WAIT_FOREVER ) ) ) { return M4NO_ERROR; } } } } } } pthread_attr_destroy( &attribute ); } M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); threadContext->state = M4OSA_kThreadOpened; M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_DEBUG(M4ERR_THREAD_NOT_STARTED, "M4OSA_threadSyncStart"); return M4ERR_THREAD_NOT_STARTED; } /** ************************************************************************ * @brief This method stops a specified thread. * @note This call is a blocking one up to the "M4OSA_ThreadDoIt" * function has returned. * Before the method is called, the state is M4OSA_kThreadRunning. * Once the method is called, the state is M4OSA_kThreadStopping. * Once the thread is stopped, the state is M4OSA_kThreadOpened. * @note This method returns once the thread has been stopped. If the * "threadStopped" optionID is not NULL, the thread will call it * before dying. * @param context:(IN/OUT) Context of the thread * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_STATE: this function cannot be called now * @return M4ERR_BAD_CONTEXT: provided context is not a valid one ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncStop(M4OSA_Context context) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_TRACE1_1("M4OSA_threadSyncStop\t\tM4OSA_Context 0x%x", context); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncStop"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncStop"); M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); if(threadContext->state != M4OSA_kThreadRunning) { M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncStop"); return M4ERR_STATE; } threadContext->state = M4OSA_kThreadStopping; M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_semaphoreWait(threadContext->semStartStop, M4OSA_WAIT_FOREVER); M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); threadContext->state = M4OSA_kThreadOpened; M4OSA_mutexUnlock(threadContext->stateMutex); return M4NO_ERROR; } /** ************************************************************************ * @brief This method deletes a thread (identified by its context). After * this call the thread and its context are no more useable. This * function frees all the memory related to this thread. * @note Before the method is called, the state is M4OSA_kThreadOpened. * Once the method is called, the state is M4OSA_kThreadClosed. * @param context:(IN/OUT) Context of the thread * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_STATE: this function cannot be called now * @return M4ERR_BAD_CONTEXT: provided context is not a valid one ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncClose(M4OSA_Context context) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_ERR err_code; M4OSA_TRACE1_1("M4OSA_threadSyncClose\t\tM4OSA_Context 0x%x", context); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncClose"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncClose"); M4OSA_DEBUG_IF2(threadContext->state == M4OSA_kThreadClosed, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncClose"); M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); if(threadContext->state != M4OSA_kThreadOpened) { M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncClose"); return M4ERR_STATE; } threadContext->state = M4OSA_kThreadClosed; M4OSA_mutexUnlock(threadContext->stateMutex); err_code = M4OSA_mutexClose(threadContext->stateMutex); if(M4OSA_ERR_IS_ERROR(err_code)) { M4OSA_DEBUG(err_code, "M4OSA_threadSyncClose: M4OSA_mutexClose"); return err_code; } err_code = M4OSA_semaphoreClose(threadContext->semStartStop); if(M4OSA_ERR_IS_ERROR(err_code)) { M4OSA_DEBUG(err_code, "M4OSA_threadSyncClose: M4OSA_semaphoreClose"); return err_code; } if(threadContext->name != M4OSA_NULL) { free(threadContext->name); } free(threadContext); return M4NO_ERROR; } /** ************************************************************************ * @brief This method asks the thread to return its state. * @note The caller is responsible for allocating/deallocating the state * field. * @param context:(IN) Context of the thread * @param state:(OUT) Thread state * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_BAD_CONTEXT: provided context is not a valid one ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncGetState(M4OSA_Context context, M4OSA_ThreadState* state) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_TRACE1_2("M4OSA_threadSyncGetState\t\tM4OSA_Context 0x%x\t" "M4OSA_ThreadState* 0x%x", context, state); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncGetState"); M4OSA_DEBUG_IF2(state == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncGetState"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncGetState"); *state = threadContext->state; return M4NO_ERROR; } /** ************************************************************************ * @brief This method asks the calling thread to sleep during "timeSleep" * milliseconds. * @note This function does not have any context. * @param time:(IN) Time to sleep in milliseconds * @return M4NO_ERROR: there is no error ************************************************************************ */ M4OSA_ERR M4OSA_threadSleep(M4OSA_UInt32 time) { struct timespec rqtp = { 0, 0 }; struct timespec rmtp = { 0, 0 }; M4OSA_TRACE1_1("M4OSA_threadSleep\t\tM4OSA_UInt32 %d", time); rqtp.tv_sec = (time_t)time/1000; rqtp.tv_nsec = (time%1000) * 1000000; nanosleep(&rqtp, &rmtp); return M4NO_ERROR; } #if(M4OSA_OPTIONID_THREAD_PRIORITY == M4OSA_TRUE) M4OSA_ERR M4OSA_SetThreadSyncPriority(M4OSA_Context context, M4OSA_DataOption optionValue) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_ThreadPriorityLevel priority = (M4OSA_ThreadPriorityLevel)(optionValue); M4OSA_TRACE2_2("M4OSA_SetThreadSyncPriority\t\tM4OSA_Context 0x%x\t" "M4OSA_DataOption 0x%x", context, optionValue); if((M4OSA_UInt32)(uintptr_t)optionValue>M4OSA_kThreadLowestPriority) { return M4ERR_PARAMETER; } threadContext->priority = priority; return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_PRIORITY*/ #if(M4OSA_OPTIONID_THREAD_NAME == M4OSA_TRUE) M4OSA_ERR M4OSA_SetThreadSyncName(M4OSA_Context context, M4OSA_DataOption optionValue) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_Char* name = (M4OSA_Char*)optionValue; M4OSA_UInt32 nameSize ; M4OSA_TRACE2_2("M4OSA_SetThreadSyncName\t\tM4OSA_Context 0x%x\t" "M4OSA_DataOption 0x%x", context, optionValue); if(threadContext->name != NULL) { free(threadContext->name); threadContext->name = M4OSA_NULL; } if(optionValue != M4OSA_NULL) { nameSize = strlen((const char *)name)+1; threadContext->name = (M4OSA_Char*)M4OSA_32bitAlignedMalloc(nameSize, M4OSA_THREAD, (M4OSA_Char*)"M4OSA_SetThreadSyncName: thread name"); if(threadContext == M4OSA_NULL) { return M4ERR_ALLOC; } memcpy((void *)threadContext->name, (void *)name, nameSize); } return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_NAME*/ #if(M4OSA_OPTIONID_THREAD_STACK_SIZE == M4OSA_TRUE) M4OSA_ERR M4OSA_SetThreadSyncStackSize(M4OSA_Context context, M4OSA_DataOption optionValue) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_TRACE2_2("M4OSA_SetThreadSyncStackSize\t\tM4OSA_Context 0x%x\t" "M4OSA_DataOption 0x%x", context, optionValue); threadContext->stackSize = (M4OSA_UInt32)(uintptr_t)optionValue; return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_STACK_SIZE*/ /** ************************************************************************ * @brief This method asks the core OSAL-Thread component to set the value * associated with the optionID. The caller is responsible for * allocating/deallocating the memory of the value field. * @note As the caller is responsible of allocating/de-allocating the * "value" field, the callee must copy this field to its internal * variable. * @param context:(IN/OUT) Context of the thread * @param optionID:(IN) ID of the option * @param optionValue:(IN) Value of the option * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_BAD_CONTEXT: provided context is not a valid one * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one * @return M4ERR_STATE: this option is not available now * @return M4ERR_READ_ONLY: this option is a read only one * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncSetOption(M4OSA_Context context, M4OSA_ThreadOptionID optionID, M4OSA_DataOption optionValue) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_ERR err_code; M4OSA_TRACE1_3("M4OSA_threadSyncSetOption\t\tM4OSA_Context 0x%x\t" "M4OSA_OptionID %d\tM4OSA_DataOption 0x%x", context, optionID, optionValue); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncSetOption"); M4OSA_DEBUG_IF2(optionID == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncSetOption"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncSetOption"); M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_THREAD), M4ERR_BAD_OPTION_ID, "M4OSA_threadSyncSetOption"); M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_WRITABLE(optionID), M4ERR_READ_ONLY, "M4OSA_threadSyncSetOption"); M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER); if(threadContext->state != M4OSA_kThreadOpened) { M4OSA_mutexUnlock(threadContext->stateMutex); M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncSetOption"); return M4ERR_STATE; } switch(optionID) { #if(M4OSA_OPTIONID_THREAD_PRIORITY == M4OSA_TRUE) case M4OSA_ThreadPriority: { err_code = M4OSA_SetThreadSyncPriority(context, optionValue); break; } #endif /*M4OSA_OPTIONID_THREAD_PRIORITY*/ #if(M4OSA_OPTIONID_THREAD_NAME == M4OSA_TRUE) case M4OSA_ThreadName: { err_code = M4OSA_SetThreadSyncName(context, optionValue); break; } #endif /*M4OSA_OPTIONID_THREAD_NAME*/ #if(M4OSA_OPTIONID_THREAD_STACK_SIZE == M4OSA_TRUE) case M4OSA_ThreadStackSize: { err_code = M4OSA_SetThreadSyncStackSize(context, optionValue); break; } #endif /*M4OSA_OPTIONID_THREAD_STACK_SIZE*/ default: { M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_threadSyncSetOption"); err_code = M4ERR_NOT_IMPLEMENTED; } } M4OSA_mutexUnlock(threadContext->stateMutex); return err_code; } /** ************************************************************************ * @brief This method asks the OSAL-Thread to return the value associated * with the optionID. The caller is responsible for * allocating/deallocating the memory of the value field. * @note "optionValue" must be cast according to the type related to the * optionID. * @note As the caller is responsible for de-allocating the "value" * field, the core OSAL-Thread component must perform a copy of its * internal value to the value field. * @param context:(IN) Context of the thread * @param optionID:(IN) ID of the option * @param optionValue:(OUT) Value of the option * @return M4NO_ERROR: there is no error * @return M4ERR_PARAMETER: at least one parameter is NULL * @return M4ERR_BAD_CONTEXT: provided context is not a valid one * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one * @return M4ERR_WRITE_ONLY: this option is a write only one * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented ************************************************************************ */ M4OSA_ERR M4OSA_threadSyncGetOption(M4OSA_Context context, M4OSA_ThreadOptionID optionID, M4OSA_DataOption* optionValue) { M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context; M4OSA_TRACE1_3("M4OSA_threadSyncGetOption\t\tM4OSA_Context 0x%x\t" "M4OSA_OptionID %d\tM4OSA_DataOption* 0x%x", context, optionID, optionValue); M4OSA_DEBUG_IF2(context == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncGetOption"); M4OSA_DEBUG_IF2(optionID == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncGetOption"); M4OSA_DEBUG_IF2(optionValue == M4OSA_NULL, M4ERR_PARAMETER, "M4OSA_threadSyncGetOption"); M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD, M4ERR_BAD_CONTEXT, "M4OSA_threadSyncGetOption"); M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_THREAD), M4ERR_BAD_OPTION_ID, "M4OSA_threadSyncGetOption"); M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_READABLE(optionID), M4ERR_WRITE_ONLY, "M4OSA_threadSyncGetOption"); switch(optionID) { #if(M4OSA_OPTIONID_THREAD_PRIORITY == M4OSA_TRUE) case M4OSA_ThreadPriority: { M4OSA_ThreadPriorityLevel* priority = (M4OSA_ThreadPriorityLevel*)optionValue; *priority = threadContext->priority; return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_PRIORITY*/ #if(M4OSA_OPTIONID_THREAD_NAME == M4OSA_TRUE) case M4OSA_ThreadName: { M4OSA_Char** name = (M4OSA_Char**)optionValue; *name = threadContext->name; return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_NAME*/ #if(M4OSA_OPTIONID_THREAD_STACK_SIZE == M4OSA_TRUE) case M4OSA_ThreadStackSize: { M4OSA_UInt32* stackSize = (M4OSA_UInt32*)optionValue; *stackSize = threadContext->stackSize; return M4NO_ERROR; } #endif /*M4OSA_OPTIONID_THREAD_STACK_SIZE*/ default: break; } M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_threadSyncGetOption"); return M4ERR_NOT_IMPLEMENTED; }