SDL  2.0
testerror.c
Go to the documentation of this file.
1 /*
2  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
3 
4  This software is provided 'as-is', without any express or implied
5  warranty. In no event will the authors be held liable for any damages
6  arising from the use of this software.
7 
8  Permission is granted to anyone to use this software for any purpose,
9  including commercial applications, and to alter it and redistribute it
10  freely.
11 */
12 
13 /* Simple test of the SDL threading code and error handling */
14 
15 #include <stdio.h>
16 #include <stdlib.h>
17 
18 #include "SDL.h"
19 
20 static int alive = 0;
21 
22 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
23 static void
24 quit(int rc)
25 {
26  SDL_Quit();
27  exit(rc);
28 }
29 
30 int SDLCALL
32 {
33  /* Set the child thread error string */
34  SDL_SetError("Thread %s (%lu) had a problem: %s",
35  (char *) data, SDL_ThreadID(), "nevermind");
36  while (alive) {
37  SDL_Log("Thread '%s' is alive!\n", (char *) data);
38  SDL_Delay(1 * 1000);
39  }
40  SDL_Log("Child thread error string: %s\n", SDL_GetError());
41  return (0);
42 }
43 
44 int
45 main(int argc, char *argv[])
46 {
47  SDL_Thread *thread;
48 
49  /* Enable standard application logging */
51 
52  /* Load the SDL library */
53  if (SDL_Init(0) < 0) {
54  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
55  return (1);
56  }
57 
58  /* Set the error value for the main thread */
59  SDL_SetError("No worries");
60 
61  alive = 1;
62  thread = SDL_CreateThread(ThreadFunc, NULL, "#1");
63  if (thread == NULL) {
64  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
65  quit(1);
66  }
67  SDL_Delay(5 * 1000);
68  SDL_Log("Waiting for thread #1\n");
69  alive = 0;
70  SDL_WaitThread(thread, NULL);
71 
72  SDL_Log("Main thread error string: %s\n", SDL_GetError());
73 
74  SDL_Quit();
75  return (0);
76 }
#define SDL_ThreadID
#define SDL_GetError
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
#define SDL_LogError
#define SDL_Log
#define SDL_Quit
int ThreadFunc(void *data)
Definition: testerror.c:31
static void quit(int rc)
Definition: testerror.c:24
#define SDL_CreateThread
#define SDL_Delay
#define SDL_LogSetPriority
#define NULL
Definition: begin_code.h:164
#define SDL_SetError
#define SDL_Init
#define SDLCALL
Definition: SDL_internal.h:45
int main(int argc, char *argv[])
Definition: testerror.c:45
#define SDL_WaitThread
static int alive
Definition: testerror.c:20