#include <QtCore/QCoreApplication>
#include <QtCore/QThread>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>

class MyThread : public QThread
{
	void run();
};

void MyThread::run() {
	printf("Thread OK.\n");
}

int qt_test(int argc, char** argv) {
	QCoreApplication app(argc, argv);

	MyThread thread;
	thread.start();

	int p[2];
	char buf;
	pipe(p);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			printf("Child OK.\n");
			write(p[1], "\0", 1);
			exit(0);
		default:
			break;
		
	}
	close(p[1]);
	read(p[0], &buf, 1);
	thread.wait();
	return 0;
}

void* thread_run(void* arg) {
	printf("Thread OK.\n");
}

int pure_test() {
	pthread_t thread;
	pthread_create(&thread, NULL, thread_run, NULL);

	int p[2];
	char buf;
	pipe(p);

	switch (fork()) {
		case -1:
			perror("fork() failed");
		case 0:
			close(p[0]);
			printf("Child OK.\n");
			write(p[1], "\0", 1);
			exit(0);
		default:
			break;
		
	}
	
	close(p[1]);
	read(p[0], &buf, 1);
	pthread_join(thread, NULL);
	return 0;
}

int main(int argc, char** argv) {
	if (argc == 2) {
		if (!strcmp("qt", argv[1])) {
			return qt_test(argc, argv);
		}
	}
	return pure_test();
}