mirror of
https://github.com/Ryujinx/SDL.git
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0e45984fa0
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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/* Simple test of the SDL threading code */
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include "SDL.h"
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static SDL_TLSID tls;
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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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static void
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quit(int rc)
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{
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SDL_Quit();
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exit(rc);
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}
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int SDLCALL
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ThreadFunc(void *data)
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{
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SDL_TLSSet(tls, "baby thread", NULL);
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SDL_Log("Started thread %s: My thread id is %lu, thread data = %s\n",
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(char *) data, SDL_ThreadID(), (const char *)SDL_TLSGet(tls));
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while (alive) {
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SDL_Log("Thread '%s' is alive!\n", (char *) data);
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SDL_Delay(1 * 1000);
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}
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SDL_Log("Thread '%s' exiting!\n", (char *) data);
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return (0);
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}
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static void
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killed(int sig)
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{
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SDL_Log("Killed with SIGTERM, waiting 5 seconds to exit\n");
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SDL_Delay(5 * 1000);
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alive = 0;
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quit(0);
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}
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int
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main(int argc, char *argv[])
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{
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SDL_Thread *thread;
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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/* Load the SDL library */
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if (SDL_Init(0) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return (1);
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}
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tls = SDL_TLSCreate();
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SDL_assert(tls);
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SDL_TLSSet(tls, "main thread", NULL);
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SDL_Log("Main thread data initially: %s\n", (const char *)SDL_TLSGet(tls));
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alive = 1;
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thread = SDL_CreateThread(ThreadFunc, "One", "#1");
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if (thread == NULL) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
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quit(1);
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}
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SDL_Delay(5 * 1000);
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SDL_Log("Waiting for thread #1\n");
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alive = 0;
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SDL_WaitThread(thread, NULL);
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SDL_Log("Main thread data finally: %s\n", (const char *)SDL_TLSGet(tls));
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alive = 1;
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signal(SIGTERM, killed);
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thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
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if (thread == NULL) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
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quit(1);
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}
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raise(SIGTERM);
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SDL_Quit(); /* Never reached */
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return (0); /* Never reached */
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}
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