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testhread.c
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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;
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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quit(int rc)
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SDL_Quit();
exit(rc);
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ThreadFunc(void *data)
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printf("Started thread %s: My thread id is %u\n",
(char *) data, SDL_ThreadID());
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while (alive) {
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printf("Thread '%s' is alive!\n", (char *) data);
SDL_Delay(1 * 1000);
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printf("Thread '%s' exiting!\n", (char *) data);
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}
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killed(int sig)
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printf("Killed with SIGTERM, waiting 5 seconds to exit\n");
SDL_Delay(5 * 1000);
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quit(0);
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}
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main(int argc, char *argv[])
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SDL_Thread *thread;
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/* Load the SDL library */
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if (SDL_Init(0) < 0) {
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return (1);
}
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thread = SDL_CreateThread(ThreadFunc, "#1");
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if (thread == NULL) {
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fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
quit(1);
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SDL_Delay(5 * 1000);
printf("Waiting for thread #1\n");
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SDL_WaitThread(thread, NULL);
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thread = SDL_CreateThread(ThreadFunc, "#2");
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if (thread == NULL) {
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fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
quit(1);
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SDL_Delay(5 * 1000);
printf("Killing thread #2\n");
SDL_KillThread(thread);
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signal(SIGTERM, killed);
thread = SDL_CreateThread(ThreadFunc, "#3");
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if (thread == NULL) {
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fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
quit(1);
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raise(SIGTERM);
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SDL_Quit(); /* Never reached */
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return (0); /* Never reached */