Mercurial > sdl-ios-xcode
annotate test/torturethread.c @ 1151:be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
if SDL is built with a non-cdecl calling convention, and it's just generally
bad practice anyhow.
Now programs explicitly call SDL_Quit() where appropriate, wrap SDL_Quit() in
a cdecl function where it can't be avoided, and rely on the parachute where
a crash might have hit the atexit() before (these ARE test programs, after
all!).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 28 Sep 2005 11:36:20 +0000 |
| parents | 74212992fb08 |
| children | d93862a3d821 |
| rev | line source |
|---|---|
| 0 | 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 | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
16 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
17 static void quit(int rc) |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
18 { |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
19 SDL_Quit(); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
20 exit(rc); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
21 } |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
22 |
| 0 | 23 int SubThreadFunc(void *data) { |
| 24 while(! *(int volatile *)data) { | |
| 25 ; /*SDL_Delay(10); /* do nothing */ | |
| 26 } | |
| 27 return 0; | |
| 28 } | |
| 29 | |
| 30 int ThreadFunc(void *data) { | |
| 31 SDL_Thread *sub_threads[NUMTHREADS]; | |
| 32 int flags[NUMTHREADS]; | |
| 33 int i; | |
| 34 int tid = (int ) data; | |
| 35 | |
| 36 fprintf(stderr, "Creating Thread %d\n", tid); | |
| 37 | |
| 38 for(i = 0; i < NUMTHREADS; i++) { | |
| 39 flags[i] = 0; | |
| 40 sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]); | |
| 41 } | |
| 42 | |
| 43 printf("Thread '%d' waiting for signal\n", tid); | |
| 44 while(time_for_threads_to_die[tid] != 1) { | |
| 45 ; /* do nothing */ | |
| 46 } | |
| 47 | |
| 48 printf("Thread '%d' sending signals to subthreads\n", tid); | |
| 49 for(i = 0; i < NUMTHREADS; i++) { | |
| 50 flags[i] = 1; | |
| 51 SDL_WaitThread(sub_threads[i], NULL); | |
| 52 } | |
| 53 | |
| 54 printf("Thread '%d' exiting!\n", tid); | |
| 55 | |
| 56 return 0; | |
| 57 } | |
| 58 | |
| 59 int main(int argc, char *argv[]) | |
| 60 { | |
| 61 SDL_Thread *threads[NUMTHREADS]; | |
| 62 int i; | |
| 63 | |
| 64 /* Load the SDL library */ | |
| 65 if ( SDL_Init(0) < 0 ) { | |
| 66 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
67 return(1); |
| 0 | 68 } |
| 69 | |
| 70 signal(SIGSEGV, SIG_DFL); | |
| 71 for(i = 0; i < NUMTHREADS; i++) { | |
| 72 time_for_threads_to_die[i] = 0; | |
| 73 threads[i] = SDL_CreateThread(ThreadFunc, (void *) i); | |
| 74 | |
| 75 if ( threads[i] == NULL ) { | |
| 76 fprintf(stderr, | |
| 77 "Couldn't create thread: %s\n", SDL_GetError()); | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
78 quit(1); |
| 0 | 79 } |
| 80 } | |
| 81 | |
| 82 for(i = 0; i < NUMTHREADS; i++) { | |
| 83 time_for_threads_to_die[i] = 1; | |
| 84 } | |
| 85 | |
| 86 for(i = NUMTHREADS-1; i >= 0; --i) { | |
| 87 SDL_WaitThread(threads[i], NULL); | |
| 88 } | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
89 SDL_Quit(); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
90 return(0); |
| 0 | 91 } |