2 Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 This software is provided 'as-is', without any express or implied
5 warranty. In no event will the authors be held liable for any damages
6 arising from the use of this software.
8 Permission is granted to anyone to use this software for any purpose,
9 including commercial applications, and to alter it and redistribute it
13 /* Simple test of the SDL threading code */
24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
33 ThreadFunc(void *data)
35 SDL_TLSSet(tls, "baby thread", NULL);
36 SDL_Log("Started thread %s: My thread id is %lu, thread data = %s\n",
37 (char *) data, SDL_ThreadID(), (const char *)SDL_TLSGet(tls));
39 SDL_Log("Thread '%s' is alive!\n", (char *) data);
42 SDL_Log("Thread '%s' exiting!\n", (char *) data);
49 SDL_Log("Killed with SIGTERM, waiting 5 seconds to exit\n");
55 main(int argc, char *argv[])
59 /* Enable standard application logging */
60 SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
62 /* Load the SDL library */
63 if (SDL_Init(0) < 0) {
64 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
68 tls = SDL_TLSCreate();
70 SDL_TLSSet(tls, "main thread", NULL);
71 SDL_Log("Main thread data initially: %s\n", (const char *)SDL_TLSGet(tls));
74 thread = SDL_CreateThread(ThreadFunc, "One", "#1");
76 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
80 SDL_Log("Waiting for thread #1\n");
82 SDL_WaitThread(thread, NULL);
84 SDL_Log("Main thread data finally: %s\n", (const char *)SDL_TLSGet(tls));
87 signal(SIGTERM, killed);
88 thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
90 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
95 SDL_Quit(); /* Never reached */
96 return (0); /* Never reached */