author | Sam Lantinga <slouken@libsdl.org> |
Mon, 29 May 2006 04:04:35 +0000 | |
branch | SDL-1.3 |
changeset 1668 | 4da1ee79c9af |
parent 1662 | 782fd950bd46 |
permissions | -rw-r--r-- |
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/* Test the thread and mutex locking functions |
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Also exercises the system's signal/thread interaction |
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*/ |
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#include <signal.h> |
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#include <stdio.h> |
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#include "SDL.h" |
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#include "SDL_mutex.h" |
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#include "SDL_thread.h" |
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static SDL_mutex *mutex = NULL; |
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static Uint32 mainthread; |
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static SDL_Thread *threads[6]; |
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static volatile int doterminate = 0; |
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/* |
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* 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:
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* calling conventions may differ... |
be9c9c8f6d53
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Ryan C. Gordon <icculus@icculus.org>
parents:
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*/ |
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782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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static void |
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SDL_Quit_Wrapper(void) |
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{ |
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SDL_Quit(); |
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Sam Lantinga <slouken@libsdl.org>
parents:
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} |
782fd950bd46
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Sam Lantinga <slouken@libsdl.org>
parents:
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782fd950bd46
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Sam Lantinga <slouken@libsdl.org>
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void |
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printid(void) |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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{ |
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printf("Process %u: exiting\n", SDL_ThreadID()); |
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} |
782fd950bd46
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Sam Lantinga <slouken@libsdl.org>
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782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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void |
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terminate(int sig) |
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{ |
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signal(SIGINT, terminate); |
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doterminate = 1; |
782fd950bd46
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Sam Lantinga <slouken@libsdl.org>
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} |
782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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void |
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closemutex(int sig) |
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{ |
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Uint32 id = SDL_ThreadID(); |
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int i; |
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printf("Process %u: Cleaning up...\n", id == mainthread ? 0 : id); |
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parents:
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for (i = 0; i < 6; ++i) |
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SDL_KillThread(threads[i]); |
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SDL_DestroyMutex(mutex); |
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exit(sig); |
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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
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} |
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
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782fd950bd46
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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int SDLCALL |
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Run(void *data) |
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{ |
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if (SDL_ThreadID() == mainthread) |
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signal(SIGTERM, closemutex); |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents:
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while (1) { |
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printf("Process %u ready to work\n", SDL_ThreadID()); |
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if (SDL_mutexP(mutex) < 0) { |
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fprintf(stderr, "Couldn't lock mutex: %s", SDL_GetError()); |
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exit(1); |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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} |
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printf("Process %u, working!\n", SDL_ThreadID()); |
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SDL_Delay(1 * 1000); |
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printf("Process %u, done!\n", SDL_ThreadID()); |
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if (SDL_mutexV(mutex) < 0) { |
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fprintf(stderr, "Couldn't unlock mutex: %s", SDL_GetError()); |
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exit(1); |
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parents:
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} |
782fd950bd46
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/* If this sleep isn't done, then threads may starve */ |
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SDL_Delay(10); |
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if (SDL_ThreadID() == mainthread && doterminate) { |
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printf("Process %u: raising SIGTERM\n", SDL_ThreadID()); |
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raise(SIGTERM); |
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} |
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} |
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return (0); |
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} |
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int |
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main(int argc, char *argv[]) |
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{ |
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int i; |
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int maxproc = 6; |
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/* Load the SDL library */ |
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if (SDL_Init(0) < 0) { |
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fprintf(stderr, "%s\n", SDL_GetError()); |
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exit(1); |
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} |
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atexit(SDL_Quit_Wrapper); |
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if ((mutex = SDL_CreateMutex()) == NULL) { |
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fprintf(stderr, "Couldn't create mutex: %s\n", SDL_GetError()); |
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exit(1); |
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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents:
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} |
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mainthread = SDL_ThreadID(); |
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printf("Main thread: %u\n", mainthread); |
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atexit(printid); |
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for (i = 0; i < maxproc; ++i) { |
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if ((threads[i] = SDL_CreateThread(Run, NULL)) == NULL) |
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fprintf(stderr, "Couldn't create thread!\n"); |
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parents:
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} |
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signal(SIGINT, terminate); |
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Run(NULL); |
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return (0); /* Never reached */ |
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} |