/*
 * MOST NetServices "Light" V3.2.7.0.1796 MultiInstance Patch
 *
 * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * You may also obtain this software under a propriety license from Microchip.
 * Please contact Microchip for further information.
 *
 */

/*!
 * \file
 * \brief Implementation of class CTelQueue
 *
 * \cond MNS_INTERNAL_DOC
 * \addtogroup  G_MSG_QUEUE
 * @{
 */

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/* Includes                                                                                       */
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#include "mns_telqueue.h"
#include "mns_misc.h"
 
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/* Internal constants                                                                             */
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/* Implementation                                                                                 */
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/*! \brief  Constructor of class CTelQueue
 *  \param  self            The instance
 *  \param  mns_inst_id     MOST NetServices instance id
 */
void Telq_Ctor(CTelQueue *self, uint8_t mns_inst_id)
{
    self->mns_inst_id = mns_inst_id;
    Dl_Ctor(&self->list, self->mns_inst_id);
}

/*! \brief  Retrieves the head object of the telegram queue
 *  \param  self    The instance
 *  \return Reference to the telegram if a telegram object is available.
 *          Otherwise \c NULL.
 */
Msg_MostTel_t* Telq_Dequeue(CTelQueue *self)
{
    Msg_MostTel_t *tel_ptr = NULL;
    CDlNode *node_ptr = Dl_PopHead(&self->list);
 
    if (node_ptr != NULL)
    {
        tel_ptr = (Msg_MostTel_t*)Dln_GetData(node_ptr);
    }
 
    return tel_ptr;
}

/*! \brief  Retrieves a reference to the head object 
 *          without removing it from the telegram queue
 *  \param  self    The instance
 *  \return Reference to the telegram if a telegram object is available.
 *          Otherwise \c NULL.
 */
Msg_MostTel_t* Telq_Peek(CTelQueue *self)
{
    Msg_MostTel_t *tel_ptr = NULL;
    CDlNode *node_ptr = Dl_PeekHead(&self->list);
 
    if (node_ptr != NULL)
    {
        tel_ptr = (Msg_MostTel_t*)Dln_GetData(node_ptr);
    }
 
    return tel_ptr;
}

/*! \brief  Adds a telegram to the tail of the queue
 *  \param  self    The instance
 *  \param  tel_ptr Reference to the telegram 
 */
void Telq_Enqueue(CTelQueue *self, Msg_MostTel_t *tel_ptr)
{
    Dl_InsertTail(&self->list, Msg_GetNode((CMessage*)(void*)tel_ptr));
}

/*! \brief  Retrieves the current number of objects in the telegram queue 
 *  \param  self    The instance
 *  \return The current number of available telegram objects in the pool
 */
uint8_t Telq_GetSize(CTelQueue *self)
{
    return (uint8_t)Dl_GetSize(&self->list);
}

/*!
 * @}
 * \endcond
 */

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/* End of file                                                                                    */
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