#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
pthread_mutex_t mymutex;
pthread_cond_t mycond;
int somevalue = 0;



void some_func()
{
    printf("fck yeaa\n");
}

void *onethread()
{
    pthread_mutex_lock(&mymutex);

    while(somevalue == 0) pthread_cond_wait(&mycond, &mymutex);

    if(somevalue == 0xdeadbeef)
        some_func();

    pthread_mutex_unlock(&mymutex);
}


void *otherthread()
{
    pthread_mutex_lock(&mymutex);

    somevalue = 0xdeadbeef;

    pthread_cond_broadcast(&mycond);

    pthread_mutex_unlock(&mymutex);
}

int main()
{
    pthread_t p1;
    pthread_t p2;
    pthread_cond_init (&mycond, NULL);
    pthread_mutex_init(&mymutex, NULL);
    pthread_create(&p1, NULL, onethread, (void *) 0);
    pthread_create(&p2, NULL, otherthread, (void *) 0);

    pthread_exit(NULL);
}