/* v2 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <pthread.h>
#include <stdio.h>

static int cond = 0;

static void *thr(void *arg)
{
	int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	const int y = 1;
	struct sockaddr_in new_conn;
	socklen_t new_conn_len = sizeof(new_conn);

	setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &y, sizeof(y));
	listen(fd, SOMAXCONN);

	/* Signal main thread we are ready and wait until it
	flips back to zero. */
	cond = 1;
	while(cond)
		;

	accept(fd, (void *)&new_conn, &new_conn_len);
	printf("finished\n");
	return NULL;
}

int main(void)
{
	pthread_t id;
	int i;
	pthread_create(&id, NULL, thr, NULL);

	/* Wait until subthread has arrived at accept(), then flip back */
	while(!cond)
		;
	cond = 0;
	
	pthread_cancel(id);
	pthread_join(id, NULL);
	return 0;
}