zero_copy_queue.h

/****************************************************************************
 *
 *  Copyright (c) 2017, Michael Becker (michael.f.becker@gmail.com)
 *
 *  This file is part of the FreeRTOS Add-ons project.
 *
 *  Source Code:
 *  https://github.com/michaelbecker/freertos-addons
 *
 *  Project Page:
 *  http://michaelbecker.github.io/freertos-addons/
 *
 *  On-line Documentation:
 *  http://michaelbecker.github.io/freertos-addons/docs/html/index.html
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a
 *  copy of this software and associated documentation files
 *  (the "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so,subject to the
 *  following conditions:
 *
 *  + The above copyright notice and this permission notice shall be included
 *    in all copies or substantial portions of the Software.
 *  + Credit is appreciated, but not required, if you find this project
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 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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 ***************************************************************************/
 
 
#ifndef ZERO_COPY_QUEUE_H_
#define ZERO_COPY_QUEUE_H_
 
 
typedef void * ZeroCopyQueue_t;
 
 
ZeroCopyQueue_t ZcqCreateQueue( int itemSize,
                                int itemCount,
                                int Alignment);
 
 
void *ZcqAllocateItem(ZeroCopyQueue_t zcq);
 
 
void ZcqFreeItem(ZeroCopyQueue_t zcq, void *item);
 
 
int ZcqEnqueueItem(ZeroCopyQueue_t zcq, void *item, TickType_t Timeout);
 
 
void *ZcqDequeueItem(ZeroCopyQueue_t zcq, TickType_t Timeout);
 
 
#endif