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class Thread
{
public:
Thread(const Thread&);
Thread() : handle(NULL), running(false), finished(false)
{
handle = (HANDLE)(_beginthreadex(NULL, 0, &(Thread::threadRun), this, CREATE_SUSPENDED, NULL));
}
~Thread()
{
if(isRunning()) {
TerminateThread(handle, 0);
}
CloseHandle(handle);
}
void start(void* arg)
{
if(isRunning() || isFinished()) {
throw Exception("Thread is running or finished!");
} else {
this->arg = arg;
ResumeThread(handle);
}
}
void pause()
{
if(isRunning()) {
SuspendThread(handle);
} else {
throw Exception("Thread is not running or finished!");
}
}
void resume()
{
if(!(isRunning())) {
throw Exception("Thread is finished!");
} else {
ResumeThread(handle);
}
}
void stop()
{
if(isRunning()) {
TerminateThread(handle, 0);
running = false;
finished = true;
throw Exception("Thread stopped!");
} else {
throw Exception("Thread is not running or finished!");
}
}
void setPriority(ThreadPriority priority)
{
if(isFinished()) {
throw Exception("Thread is finished!");
} else {
switch(priority) {
case ThreadPriorityLow:
SetThreadPriority(handle, THREAD_PRIORITY_LOWEST);
break;
case ThreadPriorityNormal:
SetThreadPriority(handle, THREAD_PRIORITY_NORMAL);
break;
case ThreadPriorityHigh:
SetThreadPriority(handle, THREAD_PRIORITY_HIGHEST);
break;
default:
throw Exception("Invalid priority!");
break;
}
}
}
bool isRunning()
{
return (running);
}
bool isFinished()
{
return (finished);
}
protected:
virtual void run(void *arg) = 0;
private:
static unsigned int __stdcall threadRun(void *arg)
{
Thread *thread = static_cast<Thread*>(arg);
thread->running = true;
thread->run(thread->arg);
thread->running = false;
thread->finished = true;
_endthreadex(0);
return (0);
}
void *arg;
HANDLE handle;
bool running;
bool finished;
};