Mercurial > sdl-ios-xcode

comparison test/torturethread.c @ 0:74212992fb08

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
parents
children be9c9c8f6d53
comparison
equal deleted inserted replaced
-1:000000000000 0:74212992fb08
1
2 /* Simple test of the SDL threading code */
3
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <signal.h>
7 #include <string.h>
8
9 #include "SDL.h"
10 #include "SDL_thread.h"
11
12 #define NUMTHREADS 10
13
14 static char volatile time_for_threads_to_die[NUMTHREADS];
15
16 int SubThreadFunc(void *data) {
17 while(! *(int volatile *)data) {
18 ; /*SDL_Delay(10); /* do nothing */
19 }
20 return 0;
21 }
22
23 int ThreadFunc(void *data) {
24 SDL_Thread *sub_threads[NUMTHREADS];
25 int flags[NUMTHREADS];
26 int i;
27 int tid = (int ) data;
28
29 fprintf(stderr, "Creating Thread %d\n", tid);
30
31 for(i = 0; i < NUMTHREADS; i++) {
32 flags[i] = 0;
33 sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]);
34 }
35
36 printf("Thread '%d' waiting for signal\n", tid);
37 while(time_for_threads_to_die[tid] != 1) {
38 ; /* do nothing */
39 }
40
41 printf("Thread '%d' sending signals to subthreads\n", tid);
42 for(i = 0; i < NUMTHREADS; i++) {
43 flags[i] = 1;
44 SDL_WaitThread(sub_threads[i], NULL);
45 }
46
47 printf("Thread '%d' exiting!\n", tid);
48
49 return 0;
50 }
51
52 int main(int argc, char *argv[])
53 {
54 SDL_Thread *threads[NUMTHREADS];
55 int i;
56
57 /* Load the SDL library */
58 if ( SDL_Init(0) < 0 ) {
59 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
60 exit(1);
61 }
62 atexit(SDL_Quit);
63
64
65 signal(SIGSEGV, SIG_DFL);
66 for(i = 0; i < NUMTHREADS; i++) {
67 time_for_threads_to_die[i] = 0;
68 threads[i] = SDL_CreateThread(ThreadFunc, (void *) i);
69
70 if ( threads[i] == NULL ) {
71 fprintf(stderr,
72 "Couldn't create thread: %s\n", SDL_GetError());
73 exit(1);
74 }
75 }
76
77 for(i = 0; i < NUMTHREADS; i++) {
78 time_for_threads_to_die[i] = 1;
79 }
80
81 for(i = NUMTHREADS-1; i >= 0; --i) {
82 SDL_WaitThread(threads[i], NULL);
83 }
84 return(0); /* Never reached */
85 }