NetBufferPool.cpp

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    Scorched3D 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <net/NetBufferPool.h>

NetBufferPool *NetBufferPool::instance_ = 0;

NetBufferPool *NetBufferPool::instance()
{
        if (!instance_)
        {
                instance_ = new NetBufferPool;
        }
        return instance_;
}

NetBufferPool::NetBufferPool() : messagePoolMutex_(0)
{
        messagePoolMutex_ = SDL_CreateMutex();
}

NetBufferPool::~NetBufferPool()
{
        SDL_DestroyMutex(messagePoolMutex_);
}

void NetBufferPool::addToPool(NetBuffer *message)
{
        SDL_LockMutex(messagePoolMutex_);
        messagePool_.push_back(message);
        SDL_UnlockMutex(messagePoolMutex_);
}

NetBuffer *NetBufferPool::getFromPool()
{
        SDL_LockMutex(messagePoolMutex_);

        NetBuffer *result = 0;
        if (messagePool_.empty())
        {
                result = new NetBuffer;
        }
        else
        {
                result = messagePool_.front();
                messagePool_.pop_front();
        }
        result->reset();
        SDL_UnlockMutex(messagePoolMutex_);

        return result;
}

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