view src/atomic/macosx/SDL_atomic.c @ 3199:3e1bf2b8bd81

This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form. It also update configure.in to compile the linux version of the library. The three versions are all dummies implementations that do nothing. They are being checked in as place holders. Mostly, I just wanted to get place holders and the configure.in checked in.
author Bob Pendleton <bob@pendleton.com>
date Wed, 24 Jun 2009 20:04:08 +0000
parents
children 3aa519a5c676
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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
*/

#ifdef SDL_ATOMIC_LINUX

#include "SDL.h"
#include "SDL_config.h"
#include "SDL_atomic.h"

Uint32
SDL_AtomicExchange32(Uint32 * ptr, Uint32 value)
{
   return 0;
}

SDL_bool
SDL_AtomicCompareThenSet32(Uint32 * ptr, Uint32 oldvalue, Uint32 newvalue)
{
   return SDL_false;
}

SDL_bool
SDL_AtomicTestThenSet32(Uint32 * ptr)
{
   return SDL_false;
}

void
SDL_AtomicClear32(Uint32 * ptr)
{
}

Uint32
SDL_AtomicFetchThenIncrement32(Uint32 * ptr)
{
   return 0;
}

Uint32
SDL_AtomicFetchThenDecrement32(Uint32 * ptr)
{
   return 0;
}

Uint32
SDL_AtomicFetchThenAdd32(Uint32 * ptr, Uint32 value)
{
   return 0;
}

Uint32
SDL_AtomicFetchThenSubtract32(Uint32 * ptr, Uint32 value)
{
   return 0;
}

Uint32
SDL_AtomicIncrementThenFetch32(Uint32 * ptr)
{
   return 0;
}

Uint32
SDL_AtomicDecrementThenFetch32(Uint32 * ptr)
{
   return 0;
}

Uint32
SDL_AtomicAddThenFetch32(Uint32 * ptr, Uint32 value)
{
   return 0;
}

Uint32
SDL_AtomicSubtractThenFetch32(Uint32 * ptr, Uint32 value)
{
   return 0;
}


#ifdef SDL_HAS_64BIT_TYPE

Uint64
SDL_AtomicExchange64(Uint64 * ptr, Uint64 value)
{
   return 0;
}

SDL_bool
SDL_AtomicCompareThenSet64(Uint64 * ptr,
Uint64 oldvalue, Uint64 newvalue)
{
   return SDL_false;
}

SDL_bool
SDL_AtomicTestThenSet64(Uint64 * ptr)
{
   return SDL_false;
}

void
SDL_AtomicClear64(Uint64 * ptr)
{
}

Uint64
SDL_AtomicFetchThenIncrement64(Uint64 * ptr)
{
   return 0;
}

Uint64
SDL_AtomicFetchThenDecrement64(Uint64 * ptr)
{
   return 0;
}

Uint64
SDL_AtomicFetchThenAdd64(Uint64 * ptr, Uint64 value)
{
   return 0;
}

Uint64
SDL_AtomicFetchThenSubtract64(Uint64 * ptr, Uint64 value)
{
   return 0;
}

Uint64
SDL_AtomicIncrementThenFetch64(Uint64 * ptr)
{
   return 0;
}

Uint64
SDL_AtomicDecrementThenFetch64(Uint64 * ptr)
{
   return 0;
}

Uint64
SDL_AtomicAddThenFetch64(Uint64 * ptr, Uint64 value)
{
   return 0;
}

Uint64
SDL_AtomicSubtractThenFetch64(Uint64 * ptr, Uint64 value)
{
   return 0;
}

#endif
#endif