kc3-lang/SDL/test/testthread.c

Branch : - branch - v2.28 - tag -

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  Commit

• Author : David Ludwig
  Date : 2014-12-03 10:55:23
  Hash : 70438be2
  Message : WinRT: fixed bug whereby SDL would override an app's default orientation WinRT apps can set a default, preferred orientation via a .appxmanifest file. SDL was overriding this on app startup, and making the app use all possible orientations (landscape and portrait). Thanks to Eric Wing for the heads up on this!

• test/testthread.c

• /*
    Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely.
  */
  
  /* Simple test of the SDL threading code */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <signal.h>
  
  #include "SDL.h"
  #include "SDL_thread.h"
  
  static SDL_TLSID tls;
  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)
  {
      SDL_TLSSet(tls, "baby thread", NULL);
      SDL_Log("Started thread %s: My thread id is %lu, thread data = %s\n",
             (char *) data, SDL_ThreadID(), (const char *)SDL_TLSGet(tls));
      while (alive) {
          SDL_Log("Thread '%s' is alive!\n", (char *) data);
          SDL_Delay(1 * 1000);
      }
      SDL_Log("Thread '%s' exiting!\n", (char *) data);
      return (0);
  }
  
  static void
  killed(int sig)
  {
      SDL_Log("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;
  
  	/* Enable standard application logging */
      SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
  
      /* Load the SDL library */
      if (SDL_Init(0) < 0) {
          SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
          return (1);
      }
  
      tls = SDL_TLSCreate();
      SDL_assert(tls);
      SDL_TLSSet(tls, "main thread", NULL);
      SDL_Log("Main thread data initially: %s\n", (const char *)SDL_TLSGet(tls));
  
      alive = 1;
      thread = SDL_CreateThread(ThreadFunc, "One", "#1");
      if (thread == NULL) {
          SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
          quit(1);
      }
      SDL_Delay(5 * 1000);
      SDL_Log("Waiting for thread #1\n");
      alive = 0;
      SDL_WaitThread(thread, NULL);
  
      SDL_Log("Main thread data finally: %s\n", (const char *)SDL_TLSGet(tls));
  
      alive = 1;
      signal(SIGTERM, killed);
      thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
      if (thread == NULL) {
          SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
          quit(1);
      }
      raise(SIGTERM);
  
      SDL_Quit();                 /* Never reached */
      return (0);                 /* Never reached */
  }