static void

quit(int rc)

    SDL_Quit();

    exit(rc);

int SDLCALL

SubThreadFunc(void *data)

{

    while (!*(int volatile *) data) {

        ;                       /*SDL_Delay(10); *//* do nothing */

    }

    return 0;

int SDLCALL

ThreadFunc(void *data)

{

    SDL_Thread *sub_threads[NUMTHREADS];

    int flags[NUMTHREADS];

    int i;

    int tid = (int) (uintptr_t) data;

    fprintf(stderr, "Creating Thread %d\n", tid);

    for (i = 0; i < NUMTHREADS; i++) {

        flags[i] = 0;

        sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]);

    }

    printf("Thread '%d' waiting for signal\n", tid);

    while (time_for_threads_to_die[tid] != 1) {

        ;                       /* do nothing */

    }

    printf("Thread '%d' sending signals to subthreads\n", tid);

    for (i = 0; i < NUMTHREADS; i++) {

        flags[i] = 1;

        SDL_WaitThread(sub_threads[i], NULL);

    }

    printf("Thread '%d' exiting!\n", tid);

    return 0;

int

main(int argc, char *argv[])

    SDL_Thread *threads[NUMTHREADS];

    int i;

    /* Load the SDL library */

    if (SDL_Init(0) < 0) {

        fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());

        return (1);

    }

    signal(SIGSEGV, SIG_DFL);

    for (i = 0; i < NUMTHREADS; i++) {

        time_for_threads_to_die[i] = 0;

        threads[i] = SDL_CreateThread(ThreadFunc, (void *) (uintptr_t) i);

        if (threads[i] == NULL) {

            fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());

            quit(1);

        }

    }

    for (i = 0; i < NUMTHREADS; i++) {

        time_for_threads_to_die[i] = 1;

    }

    for (i = 0; i < NUMTHREADS; i++) {

        SDL_WaitThread(threads[i], NULL);

    }

    SDL_Quit();

    return (0);