SDL  2.0
testerror.c
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1 /*
2  Copyright (C) 1997-2020 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 }
SDL.h
SDL_CreateThread
#define SDL_CreateThread(fn, name, data)
Definition: SDL_thread.h:132
SDL_GetError
#define SDL_GetError
Definition: SDL_dynapi_overrides.h:113
quit
static void quit(int rc)
Definition: testerror.c:24
alive
static int alive
Definition: testerror.c:20
NULL
#define NULL
Definition: begin_code.h:167
SDLCALL
#define SDLCALL
Definition: SDL_internal.h:49
SDL_Thread
Definition: SDL_thread_c.h:55
SDL_LogError
#define SDL_LogError
Definition: SDL_dynapi_overrides.h:36
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
SDL_LOG_CATEGORY_APPLICATION
@ SDL_LOG_CATEGORY_APPLICATION
Definition: SDL_log.h:66
SDL_Quit
#define SDL_Quit
Definition: SDL_dynapi_overrides.h:58
SDL_Delay
#define SDL_Delay
Definition: SDL_dynapi_overrides.h:486
ThreadFunc
int ThreadFunc(void *data)
Definition: testerror.c:31
SDL_LOG_PRIORITY_INFO
@ SDL_LOG_PRIORITY_INFO
Definition: SDL_log.h:106
SDL_LogSetPriority
#define SDL_LogSetPriority
Definition: SDL_dynapi_overrides.h:236
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_Init
#define SDL_Init
Definition: SDL_dynapi_overrides.h:54
SDL_ThreadID
#define SDL_ThreadID
Definition: SDL_dynapi_overrides.h:475
SDL_WaitThread
#define SDL_WaitThread
Definition: SDL_dynapi_overrides.h:478
main
int main(int argc, char *argv[])
Definition: testerror.c:45