#include <unistd.h>

#ifdef USE_SDL
#include <SDL/SDL.h>
#include <SDL/SDL_thread.h>
#else
#include <pthread.h>
#endif

int zero = 0;

// Thread that immediately exits.
#ifdef USE_SDL
int waste_thread(void *unused __attribute__ ((unused)))
#else
void *waste_thread()
#endif
{
    //Do nothing.
#ifdef USE_SDL
    return 0;
#else
    pthread_exit(&zero);
#endif
}

int usage(char *name)
{
	printf("Usage: %s <time_to_run>\n", name);
	return 1;
}

int main(int argc, char *argv[])
{
    int time, i;
#ifndef USE_SDL
    pthread_attr_t attr;
    pthread_t child;
#endif

    if (argc != 2)
	return usage(argv[0]);

    time = atoi(argv[1]);

    if (time < 1)
	return usage(argv[0]);

    for (i = 0; i < time; i++) {
#ifdef USE_SDL
	SDL_CreateThread(waste_thread, NULL);
#else
	pthread_attr_init(&attr);
	// Make it detached.
	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	//                 // And one-to-one with kernel threads.
	pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
	pthread_create(&child, &attr, waste_thread, NULL);
#endif
	// Sleep a second.
	sleep(1);
    }
    return 0;
}