Question

#include <stdlib.h>

#include <stdio.h>

#include "uthread.h"

#include "uthread_mutex_cond.h"

uthread_t t0, t1, t2;

void randomStall() {

int i, r = random() >> 16;

while (i++<r);

}

void* p0(void* v) {

randomStall();

printf("zero\n");

return NULL;

}

void* p1(void* v) {

randomStall();

printf("one\n");

return NULL;

}

void* p2(void* v) {

randomStall();

printf("two\n");

return NULL;

}

int main(int arg, char** arv) {

uthread_init(4);

t0 = uthread_create(p0, NULL);

t1 = uthread_create(p1, NULL);

t2 = uthread_create(p2, NULL);

randomStall();

uthread_join (t0, NULL);

uthread_join (t1, NULL);

uthread_join (t2, NULL);

printf("three\n");

printf("------\n");

}