view test/testhread.c @ 3566:07c8339c95c6

Fixed bug #905 Give the foreign window message proc more control over Windows events. This may need to be adjusted when we add the capability for the app to specify whether it wants SDL to handle input for the window or not.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 15 Dec 2009 09:20:10 +0000
parents 4436464c4f51
children 0d1b16ee0bca
line wrap: on
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/* Simple test of the SDL threading code */

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>

#include "SDL.h"
#include "SDL_thread.h"

static int alive = 0;

/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void
quit(int rc)
{
    SDL_Quit();
    exit(rc);
}

int SDLCALL
ThreadFunc(void *data)
{
    printf("Started thread %s: My thread id is %u\n",
           (char *) data, SDL_ThreadID());
    while (alive) {
        printf("Thread '%s' is alive!\n", (char *) data);
        SDL_Delay(1 * 1000);
    }
    printf("Thread '%s' exiting!\n", (char *) data);
    return (0);
}

static void
killed(int sig)
{
    printf("Killed with SIGTERM, waiting 5 seconds to exit\n");
    SDL_Delay(5 * 1000);
    alive = 0;
    quit(0);
}

int
main(int argc, char *argv[])
{
    SDL_Thread *thread;

    /* Load the SDL library */
    if (SDL_Init(0) < 0) {
        fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
        return (1);
    }

    alive = 1;
    thread = SDL_CreateThread(ThreadFunc, "#1");
    if (thread == NULL) {
        fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
        quit(1);
    }
    SDL_Delay(5 * 1000);
    printf("Waiting for thread #1\n");
    alive = 0;
    SDL_WaitThread(thread, NULL);

    alive = 1;
    signal(SIGTERM, killed);
    thread = SDL_CreateThread(ThreadFunc, "#2");
    if (thread == NULL) {
        fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
        quit(1);
    }
    raise(SIGTERM);

    SDL_Quit();                 /* Never reached */
    return (0);                 /* Never reached */
}