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testerror.c
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/* Simple test of the SDL threading code and error handling */
#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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static void
quit (int rc)
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{
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SDL_Quit ();
exit (rc);
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}
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int SDLCALL
ThreadFunc (void *data)
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{
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/* Set the child thread error string */
SDL_SetError ("Thread %s (%d) had a problem: %s",
(char *) data, SDL_ThreadID (), "nevermind");
while (alive) {
printf ("Thread '%s' is alive!\n", (char *) data);
SDL_Delay (1 * 1000);
}
printf ("Child thread error string: %s\n", SDL_GetError ());
return (0);
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}
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int
main (int argc, char *argv[])
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{
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SDL_Thread *thread;
/* Load the SDL library */
if (SDL_Init (0) < 0) {
fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
return (1);
}
/* Set the error value for the main thread */
SDL_SetError ("No worries");
alive = 1;
thread = SDL_CreateThread (ThreadFunc, "#1");
if (thread == NULL) {
fprintf (stderr, "Couldn't create thread: %s\n", SDL_GetError ());
quit (1);
}
SDL_Delay (5 * 1000);
printf ("Waiting for thread #1\n");
alive = 0;
SDL_WaitThread (thread, NULL);
printf ("Main thread error string: %s\n", SDL_GetError ());
SDL_Quit ();
return (0);
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}