/**
 * @file
 * Implements a pool for Packet objects
 */

/******************************************************************************
 * Copyright (c) 2011-2012, AllSeen Alliance. All rights reserved.
 *
 *    Permission to use, copy, modify, and/or distribute this software for any
 *    purpose with or without fee is hereby granted, provided that the above
 *    copyright notice and this permission notice appear in all copies.
 *
 *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 ******************************************************************************/
#ifndef _ALLJOYN_PACKETPOOL_H
#define _ALLJOYN_PACKETPOOL_H

#include <qcc/platform.h>

#include <vector>

#include "Packet.h"

namespace ajn {

class PacketPool {
  public:
    PacketPool();

    QStatus Start(size_t mtu);

    QStatus Stop();

    ~PacketPool();

    Packet* GetPacket();

    void ReturnPacket(Packet* p);

    uint32_t GetMTU() const { return mtu; }

  private:
    size_t mtu;
    qcc::Mutex lock;
    std::vector<Packet*> freeList;
    size_t usedCount;
};

}

#endif