diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/thread/epoc/SDL_sysmutex.cpp')
-rw-r--r-- | distrib/sdl-1.2.12/src/thread/epoc/SDL_sysmutex.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.12/src/thread/epoc/SDL_sysmutex.cpp b/distrib/sdl-1.2.12/src/thread/epoc/SDL_sysmutex.cpp new file mode 100644 index 0000000..1792012 --- /dev/null +++ b/distrib/sdl-1.2.12/src/thread/epoc/SDL_sysmutex.cpp @@ -0,0 +1,105 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2006 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* + SDL_sysmutex.cpp + + Epoc version by Markus Mertama (w@iki.fi) +*/ + + +/* Mutex functions using the Win32 API */ + +#include<e32std.h> + +#include "SDL_error.h" +#include "SDL_mutex.h" + + + +struct SDL_mutex + { + TInt handle; + }; + +extern TInt CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny*, TAny*); + +TInt NewMutex(const TDesC& aName, TAny* aPtr1, TAny*) + { + return ((RMutex*)aPtr1)->CreateGlobal(aName); + } + +/* Create a mutex */ +SDL_mutex *SDL_CreateMutex(void) +{ + RMutex rmutex; + + TInt status = CreateUnique(NewMutex, &rmutex, NULL); + if(status != KErrNone) + { + SDL_SetError("Couldn't create mutex"); + } + SDL_mutex* mutex = new /*(ELeave)*/ SDL_mutex; + mutex->handle = rmutex.Handle(); + return(mutex); +} + +/* Free the mutex */ +void SDL_DestroyMutex(SDL_mutex *mutex) +{ + if ( mutex ) + { + RMutex rmutex; + rmutex.SetHandle(mutex->handle); + rmutex.Signal(); + rmutex.Close(); + delete(mutex); + mutex = NULL; + } +} + +/* Lock the mutex */ +int SDL_mutexP(SDL_mutex *mutex) +{ + if ( mutex == NULL ) { + SDL_SetError("Passed a NULL mutex"); + return -1; + } + RMutex rmutex; + rmutex.SetHandle(mutex->handle); + rmutex.Wait(); + return(0); +} + +/* Unlock the mutex */ +int SDL_mutexV(SDL_mutex *mutex) +{ + if ( mutex == NULL ) { + SDL_SetError("Passed a NULL mutex"); + return -1; + } + RMutex rmutex; + rmutex.SetHandle(mutex->handle); + rmutex.Signal(); + return(0); +} |