File content as of revision 11:ea484e1b7fc4:

/*
 * Copyright 2014, ACKme Networks
 * All Rights Reserved.
 *
 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of ACKme Networks;
 * the contents of this file may not be disclosed to third parties, copied
 * or duplicated in any form, in whole or in part, without the prior
 * written permission of ACKme Networks.
 */

#pragma once


#include "WiconnectTypes.h"


namespace wiconnect
{

/**
 * Class for hold queued commands
 *
 * @note Internal use only
 */
class CommandQueue
{
public:
    /*************************************************************************************************/
    CommandQueue()
    {
        head = tail = queue;
        count = 0;
    }

    /*************************************************************************************************/
    bool isFull()
    {
        return count == WICONNECT_MAX_QUEUED_COMMANDS;
    }

    /*************************************************************************************************/
    bool isEmpty()
    {
        return count == 0;
    }

    /*************************************************************************************************/
    bool push(QueuedCommand *cmd)
    {
        if(isFull())
        {
            return false;
        }
        ++count;
        *tail = cmd;
        if(++tail >= queue + WICONNECT_MAX_QUEUED_COMMANDS)
        {
            tail = queue;
        }

        return true;
    }

    /*************************************************************************************************/
    QueuedCommand* pop()
    {
        if(isEmpty())
            return NULL;

        QueuedCommand* cmd = *head;
        --count;
        if(++head >= queue + WICONNECT_MAX_QUEUED_COMMANDS)
        {
            head = queue;
        }
        return cmd;
    }

protected:
    QueuedCommand* queue[WICONNECT_MAX_QUEUED_COMMANDS];
    QueuedCommand** head;
    QueuedCommand** tail;
    int count;
};




}