1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/* 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;
/* 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 (%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);
}
int
main(int argc, char *argv[])
{
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);
}
|
