test/testerror.c

   1
   2 /* Simple test of the SDL threading code and error handling */
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <signal.h>
   7
   8 #include "SDL.h"
   9 #include "SDL_thread.h"
  10
  11 static int alive = 0;
  12
  13 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
  14 static void quit(int rc)
  15 {
  16         SDL_Quit();
  17         exit(rc);
  18 }
  19
  20 int SDLCALL ThreadFunc(void *data)
  21 {
  22         /* Set the child thread error string */
  23         SDL_SetError("Thread %s (%d) had a problem: %s",
  24                         (char *)data, SDL_ThreadID(), "nevermind");
  25         while ( alive ) {
  26                 printf("Thread '%s' is alive!\n", (char *)data);
  27                 SDL_Delay(1*1000);
  28         }
  29         printf("Child thread error string: %s\n", SDL_GetError());
  30         return(0);
  31 }
  32
  33 int main(int argc, char *argv[])
  34 {
  35         SDL_Thread *thread;
  36
  37         /* Load the SDL library */
  38         if ( SDL_Init(0) < 0 ) {
  39                 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
  40                 return(1);
  41         }
  42
  43         /* Set the error value for the main thread */
  44         SDL_SetError("No worries");
  45
  46         alive = 1;
  47         thread = SDL_CreateThread(ThreadFunc, "#1");
  48         if ( thread == NULL ) {
  49                 fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
  50                 quit(1);
  51         }
  52         SDL_Delay(5*1000);
  53         printf("Waiting for thread #1\n");
  54         alive = 0;
  55         SDL_WaitThread(thread, NULL);
  56
  57         printf("Main thread error string: %s\n", SDL_GetError());
  58
  59         SDL_Quit();
  60         return(0);
  61 }