Mercurial > sdl-ios-xcode
view test/testlock.c @ 3023:d72a0dd80e8b
DirectFB cleanups & simple window manager
- use SDL_getenv, not getenv ...
- no more support for 0.9.25 - not even mentioned any longer on directfb.org
- fix fullscreen issues
- add a simple window manager unless the directfb team comes up with a working wm.
The driver has support for a very, very basic window manager you may
want to use when runnning with "wm=default". Use
export SDL_DIRECTFB_WM=1
to enable basic window borders including icon support. In order to have the window title rendered,
you need to have the following font installed:
/usr/share/fonts/truetype/freefont/FreeSans.ttf
author | Couriersud <couriersud@arcor.de> |
---|---|
date | Sun, 11 Jan 2009 23:49:23 +0000 |
parents | 4436464c4f51 |
children | 0d1b16ee0bca |
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/* Test the thread and mutex locking functions Also exercises the system's signal/thread interaction */ #include <signal.h> #include <stdio.h> #include "SDL.h" #include "SDL_mutex.h" #include "SDL_thread.h" static SDL_mutex *mutex = NULL; static Uint32 mainthread; static SDL_Thread *threads[6]; static volatile int doterminate = 0; /* * SDL_Quit() shouldn't be used with atexit() directly because * calling conventions may differ... */ static void SDL_Quit_Wrapper(void) { SDL_Quit(); } void printid(void) { printf("Process %u: exiting\n", SDL_ThreadID()); } void terminate(int sig) { signal(SIGINT, terminate); doterminate = 1; } void closemutex(int sig) { Uint32 id = SDL_ThreadID(); int i; printf("Process %u: Cleaning up...\n", id == mainthread ? 0 : id); doterminate = 1; for (i = 0; i < 6; ++i) SDL_WaitThread(threads[i], NULL); SDL_DestroyMutex(mutex); exit(sig); } int SDLCALL Run(void *data) { if (SDL_ThreadID() == mainthread) signal(SIGTERM, closemutex); while (!doterminate) { printf("Process %u ready to work\n", SDL_ThreadID()); if (SDL_mutexP(mutex) < 0) { fprintf(stderr, "Couldn't lock mutex: %s", SDL_GetError()); exit(1); } printf("Process %u, working!\n", SDL_ThreadID()); SDL_Delay(1 * 1000); printf("Process %u, done!\n", SDL_ThreadID()); if (SDL_mutexV(mutex) < 0) { fprintf(stderr, "Couldn't unlock mutex: %s", SDL_GetError()); exit(1); } /* If this sleep isn't done, then threads may starve */ SDL_Delay(10); } if (SDL_ThreadID() == mainthread && doterminate) { printf("Process %u: raising SIGTERM\n", SDL_ThreadID()); raise(SIGTERM); } return (0); } int main(int argc, char *argv[]) { int i; int maxproc = 6; /* Load the SDL library */ if (SDL_Init(0) < 0) { fprintf(stderr, "%s\n", SDL_GetError()); exit(1); } atexit(SDL_Quit_Wrapper); if ((mutex = SDL_CreateMutex()) == NULL) { fprintf(stderr, "Couldn't create mutex: %s\n", SDL_GetError()); exit(1); } mainthread = SDL_ThreadID(); printf("Main thread: %u\n", mainthread); atexit(printid); for (i = 0; i < maxproc; ++i) { if ((threads[i] = SDL_CreateThread(Run, NULL)) == NULL) fprintf(stderr, "Couldn't create thread!\n"); } signal(SIGINT, terminate); Run(NULL); return (0); /* Never reached */ }