annotate test/testerror.c @ 4966:a130bc2f0a18

Fixed return value
author Sam Lantinga <slouken@libsdl.org>
date Fri, 07 Jan 2011 09:53:08 -0800
parents 0d1b16ee0bca
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1
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2 /* Simple test of the SDL threading code and error handling */
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3
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4 #include <stdio.h>
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5 #include <stdlib.h>
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6 #include <signal.h>
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7
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8 #include "SDL.h"
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9 #include "SDL_thread.h"
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10
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11 static int alive = 0;
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12
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13 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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14 static void
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15 quit(int rc)
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16 {
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17 SDL_Quit();
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18 exit(rc);
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19 }
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20
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21 int SDLCALL
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22 ThreadFunc(void *data)
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23 {
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24 /* Set the child thread error string */
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25 SDL_SetError("Thread %s (%lu) had a problem: %s",
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26 (char *) data, SDL_ThreadID(), "nevermind");
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27 while (alive) {
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28 printf("Thread '%s' is alive!\n", (char *) data);
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29 SDL_Delay(1 * 1000);
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30 }
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31 printf("Child thread error string: %s\n", SDL_GetError());
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32 return (0);
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33 }
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34
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35 int
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36 main(int argc, char *argv[])
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37 {
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38 SDL_Thread *thread;
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39
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40 /* Load the SDL library */
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41 if (SDL_Init(0) < 0) {
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42 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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43 return (1);
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44 }
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45
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46 /* Set the error value for the main thread */
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47 SDL_SetError("No worries");
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48
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49 alive = 1;
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50 thread = SDL_CreateThread(ThreadFunc, "#1");
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51 if (thread == NULL) {
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52 fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
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53 quit(1);
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54 }
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55 SDL_Delay(5 * 1000);
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56 printf("Waiting for thread #1\n");
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57 alive = 0;
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58 SDL_WaitThread(thread, NULL);
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59
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60 printf("Main thread error string: %s\n", SDL_GetError());
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61
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62 SDL_Quit();
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63 return (0);
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64 }