#include <iostream>
using namespace std;

#include <pthread.h>

class Thread {
	public:
		//
		Thread() {}
		virtual ~Thread() {}
		void start() {
			if(pthread_create(&thread,0,&(Thread::func),this) != 0) {
				cerr << "error: could not create thread" << endl;
				exit(0);
			}
		}
		void join() {
			if(pthread_join(thread,0) != 0) {
				cerr << "error: could not join thread" << endl;
				exit(0);
			}
		}
	private:
		//
		static void *func(void *arg) {
			Thread *thd = reinterpret_cast<Thread *>(arg);
			if(thd)
				thd->execute();
			return (void *)0;
		}
		pthread_t thread;
	protected:
		virtual void execute() = 0;
};

class TestThread : public Thread {
	public:
		TestThread() {}
		~TestThread() {}
	protected:
		void execute() {
			cout << "Running Test thread..." << endl;
			for(int i=0; i<5; i++) {
				cout << "working..." << endl;
				sleep(1);
			}
			cout << "done..." << endl;
		}
};

int main() {
	//
	TestThread thd;
	thd.start();
	thd.join();

	return 0;
}