Revision 0:c555ee16b8e7, committed 2013-09-13

Comitter:

cnhzcy14

Date:

Fri Sep 13 05:19:16 2013 +0000

Commit message:

Simple Thread Class

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CyThread.cpp	Fri Sep 13 05:19:16 2013 +0000
@@ -0,0 +1,75 @@
+#include "CyThread.h"
+#include "error.h"
+using namespace cnhzcy14;
+
+CyThread::CyThread()
+{
+//    _tid = -1;
+//    _thread_def = NULL;
+//    _dynamic_stack = false
+    
+}
+
+void CyThread::init(void (*task)(void const *argument), void *argument,
+        osPriority priority, uint32_t stack_size, unsigned char *stack_pointer) {
+#ifdef CMSIS_OS_RTX
+    osThreadId _tid;
+    _thread_def.pthread = task;
+    _thread_def.tpriority = priority;
+    _thread_def.stacksize = stack_size;
+    if (stack_pointer != NULL) {
+        _thread_def.stack_pointer = stack_pointer;
+        _dynamic_stack = false;
+    } else {
+        _thread_def.stack_pointer = new unsigned char[stack_size];
+        if (_thread_def.stack_pointer == NULL)
+            error("Error allocating the stack memory");
+        _dynamic_stack = true;
+    }
+#endif
+    _tid = osThreadCreate(&_thread_def, argument);
+}
+
+osStatus CyThread::terminate() {
+    return osThreadTerminate(osThreadGetId());
+}
+
+osStatus CyThread::set_priority(osPriority priority) {
+    return osThreadSetPriority(osThreadGetId(), priority);
+}
+
+osPriority CyThread::get_priority() {
+    return osThreadGetPriority(osThreadGetId());
+}
+
+int32_t CyThread::signal_set(int32_t signals) {
+    return osSignalSet(osThreadGetId(), signals);
+}
+
+//CyThread::State CyThread::get_state() {
+//    return ((State)_thread_def.tcb.state);
+//}
+
+osEvent CyThread::signal_wait(int32_t signals, uint32_t millisec) {
+    return osSignalWait(signals, millisec);
+}
+
+osStatus CyThread::wait(uint32_t millisec) {
+    return osDelay(millisec);
+}
+
+osStatus CyThread::yield() {
+    return osThreadYield();
+}
+
+osThreadId CyThread::gettid() {
+    return osThreadGetId();
+}
+
+CyThread::~CyThread() {
+    terminate();
+//    if (_dynamic_stack) {
+//        delete[] (_thread_def.stack_pointer);
+//    }
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CyThread.h	Fri Sep 13 05:19:16 2013 +0000
@@ -0,0 +1,102 @@
+#ifndef _THREAD_CNHZCY14_
+#define _THREAD_CNHZCY14_
+
+#include <stdint.h>
+#include "cmsis_os.h"
+
+
+namespace cnhzcy14
+{
+
+class CyThread
+{
+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 stack_size stack size (in bytes) requirements for the thread function. (default: DEFAULT_STACK_SIZE).
+    @param stack_pointer pointer to the stack area to be used by this thread (default: NULL).
+    */
+    CyThread();
+    
+    void init(void (*task)(void const *argument), void *argument=NULL,
+           osPriority priority=osPriorityNormal,
+           uint32_t stack_size=DEFAULT_STACK_SIZE,
+           unsigned char *stack_pointer=NULL);
+
+    /** 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);
+
+    /** State of the Thread */
+    enum State {
+        Inactive, /**< Not created or terminated */
+        Ready, /**< Ready to run */
+        Running, /**< Running */
+        WaitingDelay, /**< Waiting for a delay to occur */
+        WaitingInterval, /**< Waiting for an interval to occur */
+        WaitingOr, /**< Waiting for one event in a set to occur */
+        WaitingAnd, /**< Waiting for multiple events in a set to occur */
+        WaitingSemaphore, /**< Waiting for a semaphore event to occur */
+        WaitingMailbox, /**< Waiting for a mailbox event to occur */
+        WaitingMutex, /**< Waiting for a mutex event to occur */
+    };
+
+    /** State of this Thread
+    @return the State of this Thread
+    */
+//    State get_state();
+
+    /** 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();
+
+    virtual ~CyThread();
+
+private:
+//    osThreadId _tid;
+    osThreadDef_t _thread_def;
+    bool _dynamic_stack;
+};
+
+}
+
+#endif //_THREAD_CNHZCY14_
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