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Thread.cpp
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2012 ARM Limited 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 00020 * SOFTWARE. 00021 */ 00022 #include "Thread.h" 00023 00024 #include "mbed_error.h" 00025 00026 namespace rtos { 00027 00028 Thread::Thread(void (*task)(void const *argument), void *argument, 00029 osPriority priority, uint32_t stack_size, unsigned char *stack_pointer) { 00030 #ifdef CMSIS_OS_RTX 00031 _thread_def.pthread = task; 00032 _thread_def.tpriority = priority; 00033 _thread_def.stacksize = stack_size; 00034 #ifndef __MBED_CMSIS_RTOS_CA9 00035 if (stack_pointer != NULL) { 00036 _thread_def.stack_pointer = (uint32_t*)stack_pointer; 00037 _dynamic_stack = false; 00038 } else { 00039 _thread_def.stack_pointer = new uint32_t[stack_size/sizeof(uint32_t)]; 00040 if (_thread_def.stack_pointer == NULL) 00041 error("Error allocating the stack memory\n"); 00042 _dynamic_stack = true; 00043 } 00044 #endif 00045 #endif 00046 _tid = osThreadCreate(&_thread_def, argument); 00047 } 00048 00049 osStatus Thread::terminate() { 00050 return osThreadTerminate(_tid); 00051 } 00052 00053 osStatus Thread::set_priority(osPriority priority) { 00054 return osThreadSetPriority(_tid, priority); 00055 } 00056 00057 osPriority Thread::get_priority() { 00058 return osThreadGetPriority(_tid); 00059 } 00060 00061 int32_t Thread::signal_set(int32_t signals) { 00062 return osSignalSet(_tid, signals); 00063 } 00064 00065 Thread::State Thread::get_state() { 00066 #ifndef __MBED_CMSIS_RTOS_CA9 00067 return ((State)_thread_def.tcb.state); 00068 #else 00069 uint8_t status; 00070 status = osThreadGetState(_tid); 00071 return ((State)status); 00072 #endif 00073 } 00074 00075 osEvent Thread::signal_wait(int32_t signals, uint32_t millisec) { 00076 return osSignalWait(signals, millisec); 00077 } 00078 00079 osStatus Thread::wait(uint32_t millisec) { 00080 return osDelay(millisec); 00081 } 00082 00083 osStatus Thread::yield() { 00084 return osThreadYield(); 00085 } 00086 00087 osThreadId Thread::gettid() { 00088 return osThreadGetId(); 00089 } 00090 00091 Thread::~Thread() { 00092 terminate(); 00093 #ifndef __MBED_CMSIS_RTOS_CA9 00094 if (_dynamic_stack) { 00095 delete[] (_thread_def.stack_pointer); 00096 } 00097 #endif 00098 } 00099 00100 }
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