mbed official / mbed-rtos

Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.

Dependents:   denki-yohou_b TestY201 Network-RTOS NTPClient_HelloWorld ... more

Deprecated

This is the mbed 2 rtos library. mbed OS 5 integrates the mbed library with mbed-rtos. With this, we have provided thread safety for all mbed APIs. If you'd like to learn about using mbed OS 5, please see the docs.

rtos/Thread.cpp@107:bdd541595fc5, 2016-03-15 (annotated)

Committer:
mbed_official
Date:
Tue Mar 15 09:00:39 2016 +0000
Revision:
107:bdd541595fc5
Parent:
90:21b438192b0f
Child:
112:53ace74b190c
Synchronized with git revision 3afb55095212c88fc1c17177348bc1e16259c1ca



Full URL: https://github.com/mbedmicro/mbed/commit/3afb55095212c88fc1c17177348bc1e16259c1ca/



[STM32F4] Add DEVICE_RTC_LSI=0 to all targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 8:88a1a9c26ae3 1 /* mbed Microcontroller Library
emilmont 8:88a1a9c26ae3 2 * Copyright (c) 2006-2012 ARM Limited
emilmont 8:88a1a9c26ae3 3 *
emilmont 8:88a1a9c26ae3 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
emilmont 8:88a1a9c26ae3 5 * of this software and associated documentation files (the "Software"), to deal
emilmont 8:88a1a9c26ae3 6 * in the Software without restriction, including without limitation the rights
emilmont 8:88a1a9c26ae3 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
emilmont 8:88a1a9c26ae3 8 * copies of the Software, and to permit persons to whom the Software is
emilmont 8:88a1a9c26ae3 9 * furnished to do so, subject to the following conditions:
emilmont 8:88a1a9c26ae3 10 *
emilmont 8:88a1a9c26ae3 11 * The above copyright notice and this permission notice shall be included in
emilmont 8:88a1a9c26ae3 12 * all copies or substantial portions of the Software.
emilmont 8:88a1a9c26ae3 13 *
emilmont 8:88a1a9c26ae3 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
emilmont 8:88a1a9c26ae3 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
emilmont 8:88a1a9c26ae3 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
emilmont 8:88a1a9c26ae3 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
emilmont 8:88a1a9c26ae3 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 8:88a1a9c26ae3 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
emilmont 8:88a1a9c26ae3 20 * SOFTWARE.
emilmont 8:88a1a9c26ae3 21 */
emilmont 8:88a1a9c26ae3 22 #include "Thread.h"
emilmont 8:88a1a9c26ae3 23
mbed_official 40:bd07334df5b1 24 #include "mbed_error.h"
mbed_official 107:bdd541595fc5 25 #include "rtos_idle.h"
emilmont 8:88a1a9c26ae3 26
emilmont 8:88a1a9c26ae3 27 namespace rtos {
emilmont 8:88a1a9c26ae3 28
emilmont 8:88a1a9c26ae3 29 Thread::Thread(void (*task)(void const *argument), void *argument,
emilmont 8:88a1a9c26ae3 30 osPriority priority, uint32_t stack_size, unsigned char *stack_pointer) {
emilmont 8:88a1a9c26ae3 31 #ifdef CMSIS_OS_RTX
emilmont 8:88a1a9c26ae3 32 _thread_def.pthread = task;
emilmont 8:88a1a9c26ae3 33 _thread_def.tpriority = priority;
emilmont 8:88a1a9c26ae3 34 _thread_def.stacksize = stack_size;
emilmont 8:88a1a9c26ae3 35 if (stack_pointer != NULL) {
mbed_official 59:28712e303960 36 _thread_def.stack_pointer = (uint32_t*)stack_pointer;
emilmont 8:88a1a9c26ae3 37 _dynamic_stack = false;
emilmont 8:88a1a9c26ae3 38 } else {
mbed_official 59:28712e303960 39 _thread_def.stack_pointer = new uint32_t[stack_size/sizeof(uint32_t)];
emilmont 8:88a1a9c26ae3 40 if (_thread_def.stack_pointer == NULL)
mbed_official 25:420a92812cd1 41 error("Error allocating the stack memory\n");
emilmont 8:88a1a9c26ae3 42 _dynamic_stack = true;
emilmont 8:88a1a9c26ae3 43 }
mbed_official 84:143955ffb790 44
mbed_official 84:143955ffb790 45 //Fill the stack with a magic word for maximum usage checking
mbed_official 90:21b438192b0f 46 for (uint32_t i = 0; i < (stack_size / sizeof(uint32_t)); i++) {
mbed_official 84:143955ffb790 47 _thread_def.stack_pointer[i] = 0xE25A2EA5;
mbed_official 84:143955ffb790 48 }
emilmont 8:88a1a9c26ae3 49 #endif
emilmont 8:88a1a9c26ae3 50 _tid = osThreadCreate(&_thread_def, argument);
emilmont 8:88a1a9c26ae3 51 }
emilmont 8:88a1a9c26ae3 52
emilmont 8:88a1a9c26ae3 53 osStatus Thread::terminate() {
emilmont 8:88a1a9c26ae3 54 return osThreadTerminate(_tid);
emilmont 8:88a1a9c26ae3 55 }
emilmont 8:88a1a9c26ae3 56
emilmont 8:88a1a9c26ae3 57 osStatus Thread::set_priority(osPriority priority) {
emilmont 8:88a1a9c26ae3 58 return osThreadSetPriority(_tid, priority);
emilmont 8:88a1a9c26ae3 59 }
emilmont 8:88a1a9c26ae3 60
emilmont 8:88a1a9c26ae3 61 osPriority Thread::get_priority() {
emilmont 8:88a1a9c26ae3 62 return osThreadGetPriority(_tid);
emilmont 8:88a1a9c26ae3 63 }
emilmont 8:88a1a9c26ae3 64
emilmont 8:88a1a9c26ae3 65 int32_t Thread::signal_set(int32_t signals) {
emilmont 8:88a1a9c26ae3 66 return osSignalSet(_tid, signals);
emilmont 8:88a1a9c26ae3 67 }
emilmont 8:88a1a9c26ae3 68
mbed_official 76:85a52b7ef44b 69 int32_t Thread::signal_clr(int32_t signals) {
mbed_official 76:85a52b7ef44b 70 return osSignalClear(_tid, signals);
mbed_official 76:85a52b7ef44b 71 }
mbed_official 76:85a52b7ef44b 72
emilmont 8:88a1a9c26ae3 73 Thread::State Thread::get_state() {
mbed_official 48:e9a2c7cb57a4 74 #ifndef __MBED_CMSIS_RTOS_CA9
emilmont 8:88a1a9c26ae3 75 return ((State)_thread_def.tcb.state);
mbed_official 48:e9a2c7cb57a4 76 #else
mbed_official 48:e9a2c7cb57a4 77 uint8_t status;
mbed_official 48:e9a2c7cb57a4 78 status = osThreadGetState(_tid);
mbed_official 48:e9a2c7cb57a4 79 return ((State)status);
mbed_official 48:e9a2c7cb57a4 80 #endif
emilmont 8:88a1a9c26ae3 81 }
emilmont 8:88a1a9c26ae3 82
mbed_official 84:143955ffb790 83 uint32_t Thread::stack_size() {
mbed_official 84:143955ffb790 84 #ifndef __MBED_CMSIS_RTOS_CA9
mbed_official 84:143955ffb790 85 return _thread_def.tcb.priv_stack;
mbed_official 84:143955ffb790 86 #else
mbed_official 84:143955ffb790 87 return 0;
mbed_official 84:143955ffb790 88 #endif
mbed_official 84:143955ffb790 89 }
mbed_official 84:143955ffb790 90
mbed_official 84:143955ffb790 91 uint32_t Thread::free_stack() {
mbed_official 84:143955ffb790 92 #ifndef __MBED_CMSIS_RTOS_CA9
mbed_official 84:143955ffb790 93 uint32_t bottom = (uint32_t)_thread_def.tcb.stack;
mbed_official 84:143955ffb790 94 return _thread_def.tcb.tsk_stack - bottom;
mbed_official 84:143955ffb790 95 #else
mbed_official 84:143955ffb790 96 return 0;
mbed_official 84:143955ffb790 97 #endif
mbed_official 84:143955ffb790 98 }
mbed_official 84:143955ffb790 99
mbed_official 84:143955ffb790 100 uint32_t Thread::used_stack() {
mbed_official 84:143955ffb790 101 #ifndef __MBED_CMSIS_RTOS_CA9
mbed_official 84:143955ffb790 102 uint32_t top = (uint32_t)_thread_def.tcb.stack + _thread_def.tcb.priv_stack;
mbed_official 84:143955ffb790 103 return top - _thread_def.tcb.tsk_stack;
mbed_official 84:143955ffb790 104 #else
mbed_official 84:143955ffb790 105 return 0;
mbed_official 84:143955ffb790 106 #endif
mbed_official 84:143955ffb790 107 }
mbed_official 84:143955ffb790 108
mbed_official 84:143955ffb790 109 uint32_t Thread::max_stack() {
mbed_official 84:143955ffb790 110 #ifndef __MBED_CMSIS_RTOS_CA9
mbed_official 84:143955ffb790 111 uint32_t high_mark = 0;
mbed_official 84:143955ffb790 112 while (_thread_def.tcb.stack[high_mark] == 0xE25A2EA5)
mbed_official 84:143955ffb790 113 high_mark++;
mbed_official 84:143955ffb790 114 return _thread_def.tcb.priv_stack - (high_mark * 4);
mbed_official 84:143955ffb790 115 #else
mbed_official 84:143955ffb790 116 return 0;
mbed_official 84:143955ffb790 117 #endif
mbed_official 84:143955ffb790 118 }
mbed_official 84:143955ffb790 119
emilmont 8:88a1a9c26ae3 120 osEvent Thread::signal_wait(int32_t signals, uint32_t millisec) {
emilmont 8:88a1a9c26ae3 121 return osSignalWait(signals, millisec);
emilmont 8:88a1a9c26ae3 122 }
emilmont 8:88a1a9c26ae3 123
emilmont 8:88a1a9c26ae3 124 osStatus Thread::wait(uint32_t millisec) {
emilmont 8:88a1a9c26ae3 125 return osDelay(millisec);
emilmont 8:88a1a9c26ae3 126 }
emilmont 8:88a1a9c26ae3 127
emilmont 8:88a1a9c26ae3 128 osStatus Thread::yield() {
emilmont 8:88a1a9c26ae3 129 return osThreadYield();
emilmont 8:88a1a9c26ae3 130 }
emilmont 8:88a1a9c26ae3 131
emilmont 8:88a1a9c26ae3 132 osThreadId Thread::gettid() {
emilmont 8:88a1a9c26ae3 133 return osThreadGetId();
emilmont 8:88a1a9c26ae3 134 }
emilmont 8:88a1a9c26ae3 135
mbed_official 107:bdd541595fc5 136 void Thread::attach_idle_hook(void (*fptr)(void)) {
mbed_official 107:bdd541595fc5 137 rtos_attach_idle_hook(fptr);
mbed_official 107:bdd541595fc5 138 }
mbed_official 107:bdd541595fc5 139
emilmont 8:88a1a9c26ae3 140 Thread::~Thread() {
emilmont 8:88a1a9c26ae3 141 terminate();
emilmont 8:88a1a9c26ae3 142 if (_dynamic_stack) {
emilmont 8:88a1a9c26ae3 143 delete[] (_thread_def.stack_pointer);
emilmont 8:88a1a9c26ae3 144 }
emilmont 8:88a1a9c26ae3 145 }
emilmont 8:88a1a9c26ae3 146
emilmont 8:88a1a9c26ae3 147 }