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external/CMSIS_5/CMSIS/RTOS/Template/CPP/Thread.h

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+/* Copyright (c) 2012 mbed.org */
+#ifndef THREAD_H
+#define THREAD_H 
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+#define DEFAULT_STACK_SIZE 0x1000
+
+namespace rtos {
+
+/*! The Thread class allow defining, creating, and controlling thread functions in the system. */
+class Thread {
+public:
+    /*! Create a new thread, and start it executing the specified function.
+      \param   task      function to be executed by this thread.
+      \param   argument  pointer that is passed to the thread function as start argument. (default: NULL).
+      \param   priority  initial priority of the thread function. (default: osPriorityNormal).
+      \param   stacksz   stack size (in bytes) requirements for the thread function. (default: DEFAULT_STACK_SIZE).
+    */
+    Thread(void (*task)(void const *argument),
+           void *argument=NULL,
+           osPriority priority=osPriorityNormal,
+           uint32_t stacksize=DEFAULT_STACK_SIZE);
+    
+    /*! Terminate execution of a thread and remove it from Active Threads
+      \return  status code that indicates the execution status of the function.
+    */
+    osStatus terminate();
+    
+    /*! Set priority of an active thread
+      \param   priority  new priority value for the thread function.
+      \return  status code that indicates the execution status of the function.
+    */
+    osStatus set_priority(osPriority priority);
+    
+    /*! Get priority of an active thread
+      \ return  current priority value of the thread function.
+    */
+    osPriority get_priority();
+    
+    /*! Set the specified Signal Flags of an active thread.
+      \param   signals  specifies the signal flags of the thread that should be set.
+      \return  previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
+    */
+    int32_t signal_set(int32_t signals);
+    
+    /*! Wait for one or more Signal Flags to become signaled for the current RUNNING thread. 
+      \param   signals   wait until all specified signal flags set or 0 for any single signal flag.
+      \param   millisec  timeout value or 0 in case of no time-out. (default: osWaitForever).
+      \return  event flag information or error code.
+    */
+    static osEvent signal_wait(int32_t signals, uint32_t millisec=osWaitForever);
+    
+    
+    /*! Wait for a specified time period in millisec:
+      \param   millisec  time delay value
+      \return  status code that indicates the execution status of the function. 
+    */
+    static osStatus wait(uint32_t millisec);
+    
+    /*! Pass control to next thread that is in state READY.
+      \return  status code that indicates the execution status of the function.
+    */
+    static osStatus yield();
+    
+    /*! Get the thread id of the current running thread.
+      \return  thread ID for reference by other functions or NULL in case of error.
+    */
+    static osThreadId gettid();
+
+private:
+    osThreadId _tid;
+    osThreadDef_t _thread_def;
+};
+
+}
+#endif