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/*
Copyright (c) 2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _RING_BUFFER_
#define _RING_BUFFER_
#include <stdint.h>
// Define constants and variables for buffering incoming serial data. We're
// using a ring buffer (I think), in which head is the index of the location
// to which to write the next incoming character and tail is the index of the
// location from which to read.
#define SERIAL_BUFFER_SIZE 64
class RingBuffer
{
public:
uint8_t _aucBuffer[SERIAL_BUFFER_SIZE] ;
int _iHead ;
int _iTail ;
public:
RingBuffer( void ) ;
void store_char( uint8_t c ) ;
void clear();
int read_char();
int available();
int peek();
bool isFull();
private:
int nextIndex(int index);
} ;
#endif /* _RING_BUFFER_ */
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