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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* Simple test of the SDL threading code */
#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)
{
printf("Started thread %s: My thread id is %u\n",
(char *)data, SDL_ThreadID());
while ( alive ) {
printf("Thread '%s' is alive!\n", (char *)data);
SDL_Delay(1*1000);
}
printf("Thread '%s' exiting!\n", (char *)data);
return(0);
}
static void killed(int sig)
{
printf("Killed with SIGTERM, waiting 5 seconds to exit\n");
SDL_Delay(5*1000);
alive = 0;
quit(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);
}
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);
alive = 1;
thread = SDL_CreateThread(ThreadFunc, "#2");
if ( thread == NULL ) {
fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
quit(1);
}
SDL_Delay(5*1000);
printf("Killing thread #2\n");
SDL_KillThread(thread);
alive = 1;
signal(SIGTERM, killed);
thread = SDL_CreateThread(ThreadFunc, "#3");
if ( thread == NULL ) {
fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
quit(1);
}
raise(SIGTERM);
SDL_Quit(); /* Never reached */
return(0); /* Never reached */
}
|