Mercurial > sdl-ios-xcode
annotate test/testlock.c @ 4106:12bb6311fd5d SDL-1.2
Hans de Goede fixed bug #495
When running boswars: http://www.boswars.org/ on a machine with intel
integrathed graphics it crashes when it tries to play the initial theora
splashscreen video:
X Error of failed request: BadAlloc (insufficient resources for operation)
Major opcode of failed request: 140 (XVideo)
Minor opcode of failed request: 19 ()
Serial number of failed request: 25
Current serial number in output stream: 26
boswars: xcb_xlib.c:41: xcb_xlib_lock: Assertion `!c->xlib.lock' failed.
Aborted
I recognized this problem from a few years back, when I encountered it while
working on the Xv blitter for xmame. The problem is that for some reason
creation the Xvport and XvImage succeeds, and failure (lack of resources / hw
capability?) is only indicated during the first XvPut[Shm]Image. I've written a
patch for SDL using the work around for this I developed for xmame (and which
is still used successfully in xmame after many years of usage).
I'll admit it isn't very pretty, but after investigating several possibilities
this was the best option, any other fixes would need changes to the SDL api and
abi.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 29 Dec 2007 02:23:48 +0000 |
| parents | 290b5baf2fca |
| children | 782fd950bd46 c121d94672cb |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Test the thread and mutex locking functions | |
| 3 Also exercises the system's signal/thread interaction | |
| 4 */ | |
| 5 | |
| 6 #include <signal.h> | |
| 7 #include <stdio.h> | |
| 8 | |
| 9 #include "SDL.h" | |
| 10 #include "SDL_mutex.h" | |
| 11 #include "SDL_thread.h" | |
| 12 | |
| 13 static SDL_mutex *mutex = NULL; | |
| 14 static Uint32 mainthread; | |
| 15 static SDL_Thread *threads[6]; | |
| 1769 | 16 static volatile int doterminate = 0; |
| 0 | 17 |
|
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
|
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() shouldn't be used with atexit() directly because |
|
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 * calling conventions may differ... |
|
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 static void SDL_Quit_Wrapper(void) |
|
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
|
23 { |
|
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
|
24 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
|
25 } |
|
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
|
26 |
| 0 | 27 void printid(void) |
| 28 { | |
| 29 printf("Process %u: exiting\n", SDL_ThreadID()); | |
| 30 } | |
| 31 | |
| 32 void terminate(int sig) | |
| 33 { | |
| 1769 | 34 signal(SIGINT, terminate); |
| 35 doterminate = 1; | |
| 0 | 36 } |
| 37 void closemutex(int sig) | |
| 38 { | |
| 39 Uint32 id = SDL_ThreadID(); | |
| 40 int i; | |
| 41 printf("Process %u: Cleaning up...\n", id == mainthread ? 0 : id); | |
| 42 for ( i=0; i<6; ++i ) | |
| 43 SDL_KillThread(threads[i]); | |
| 44 SDL_DestroyMutex(mutex); | |
| 45 exit(sig); | |
| 46 } | |
| 1769 | 47 int SDLCALL Run(void *data) |
| 0 | 48 { |
| 49 if ( SDL_ThreadID() == mainthread ) | |
| 50 signal(SIGTERM, closemutex); | |
| 51 while ( 1 ) { | |
| 52 printf("Process %u ready to work\n", SDL_ThreadID()); | |
| 53 if ( SDL_mutexP(mutex) < 0 ) { | |
| 54 fprintf(stderr, "Couldn't lock mutex: %s", SDL_GetError()); | |
| 55 exit(1); | |
| 56 } | |
| 57 printf("Process %u, working!\n", SDL_ThreadID()); | |
| 58 SDL_Delay(1*1000); | |
| 59 printf("Process %u, done!\n", SDL_ThreadID()); | |
| 60 if ( SDL_mutexV(mutex) < 0 ) { | |
| 61 fprintf(stderr, "Couldn't unlock mutex: %s", SDL_GetError()); | |
| 62 exit(1); | |
| 63 } | |
| 64 /* If this sleep isn't done, then threads may starve */ | |
| 65 SDL_Delay(10); | |
| 1769 | 66 if (SDL_ThreadID() == mainthread && doterminate) { |
| 67 printf("Process %u: raising SIGTERM\n", SDL_ThreadID()); | |
| 68 raise(SIGTERM); | |
| 69 } | |
| 0 | 70 } |
| 71 return(0); | |
| 72 } | |
| 73 | |
| 74 int main(int argc, char *argv[]) | |
| 75 { | |
| 76 int i; | |
| 77 int maxproc = 6; | |
| 78 | |
| 79 /* Load the SDL library */ | |
| 80 if ( SDL_Init(0) < 0 ) { | |
| 81 fprintf(stderr, "%s\n", SDL_GetError()); | |
| 82 exit(1); | |
| 83 } | |
|
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
|
84 atexit(SDL_Quit_Wrapper); |
| 0 | 85 |
| 86 if ( (mutex=SDL_CreateMutex()) == NULL ) { | |
| 87 fprintf(stderr, "Couldn't create mutex: %s\n", SDL_GetError()); | |
| 88 exit(1); | |
| 89 } | |
| 90 | |
| 91 mainthread = SDL_ThreadID(); | |
| 92 printf("Main thread: %u\n", mainthread); | |
| 93 atexit(printid); | |
| 94 for ( i=0; i<maxproc; ++i ) { | |
| 95 if ( (threads[i]=SDL_CreateThread(Run, NULL)) == NULL ) | |
| 96 fprintf(stderr, "Couldn't create thread!\n"); | |
| 97 } | |
| 98 signal(SIGINT, terminate); | |
| 99 Run(NULL); | |
| 100 | |
| 101 return(0); /* Never reached */ | |
| 102 } |