SDL/test/testerror.c
Edward Rudd b88ca1b4a6 the last parameter of XChangeProperty is the number of elements.. and when the element format is 32.. the element is "long" so we have 5 long elements here.
Yes this seems confusing as on mac+linux Long is either 32 or 64bits depending on the architecture, but this is how the X11 protocol is defined. Thus 5 is the correct value for the nelts here.  Not 5 or 10 depending on the architecture.

More info on the confusion https://bugs.freedesktop.org/show_bug.cgi?id=16802
2015-02-10 16:28:56 -05:00

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1.9 KiB
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 and error handling */
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "SDL.h"
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)
{
/* Set the child thread error string */
SDL_SetError("Thread %s (%lu) had a problem: %s",
(char *) data, SDL_ThreadID(), "nevermind");
while (alive) {
SDL_Log("Thread '%s' is alive!\n", (char *) data);
SDL_Delay(1 * 1000);
}
SDL_Log("Child thread error string: %s\n", SDL_GetError());
return (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);
}
/* Set the error value for the main thread */
SDL_SetError("No worries");
alive = 1;
thread = SDL_CreateThread(ThreadFunc, NULL, "#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 error string: %s\n", SDL_GetError());
SDL_Quit();
return (0);
}