#pragma CCOD:script no
#pragma CCOD:options -pthread

#define _GNU_SOURCE
#include <limits.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>

#define NUM_THREADS 3

void *hello (void *threadid) {
	sleep(1);
	return NULL;
}

int main(void) {
	pthread_t thr[NUM_THREADS];
	pthread_attr_t attr, attr2;
	void *stackbottom;
	void *stacktop;
	size_t stacksize;
	int t;

	pthread_attr_init(&attr);
	pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);

	pthread_attr_getstack(&attr, &stackbottom, &stacksize);
	pthread_attr_getstackaddr(&attr, &stacktop);
	printf("Initialization: %p -> %p = %d kB\n", stackbottom, stacktop, stacksize >> 10);

	for (t=0; t<NUM_THREADS; t++) {
		pthread_create(&thr[t], &attr, hello, (void *)t);

		pthread_getattr_np(thr[t], &attr2);
		pthread_attr_getstack(&attr2, &stackbottom, &stacksize);
		pthread_attr_getstackaddr(&attr2, &stacktop);
		printf("Thread %d: %p -> %p = %d kB\n", t, stackbottom, stacktop, stacksize >> 10);
		pthread_attr_destroy(&attr2);
	}
	pthread_attr_destroy(&attr);

	return 0;
}