#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <sched.h>

int done;
pthread_cond_t c = PTHREAD_COND_INITIALIZER;
pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;

void *new_thread(void *arg) {
    printf("new thread\n");

    pthread_mutex_lock(&m);
    done = 1;
    pthread_cond_signal(&c);
    pthread_mutex_unlock(&m);
    
    return NULL;
}

int
main(int argc, char *argv[]) {
    pthread_t p;
    printf("main: begin\n");
    pthread_create(&p, NULL, new_thread, NULL);

    pthread_mutex_lock(&m);
    while (!done) {
        pthread_cond_wait(&c, &m);
    }
    pthread_mutex_unlock(&m);
    
    printf("main: end\n");
    return 0;
}