fifo.h

/*
 * FIFO library.
 * Author: Adrian Studer
 * License: CC BY-SA Creative Commons Attribution-ShareAlike
 *          https://creativecommons.org/licenses/by-sa/4.0/
 *          Please contact the author if you want to use this work in a closed-source project
 *          
 *  Modified and ported to ESP32 Arduino by Andre Janowicz - <aj@main-void.de>
 *  github.com/andrejanowicz/Navinaut-AIS
 */
 
 
#ifndef FIFO_H_
#define FIFO_H_

#include <Arduino.h>

void fifo_reset(void);            // reset FIFO, all unread data is lost

void IRAM_ATTR fifo_new_packet(void);       // start a new packet, discards any non-committed data
void IRAM_ATTR fifo_write_byte(uint8_t data);   // add next byte to current packet
void fifo_commit_packet(void);    // commit data of current packet, starts a new packet

uint16_t fifo_get_packet(void);   // start reading packet from FIFO, returns size of packet, 0=no packet available
uint8_t fifo_read_byte(void);     // read next byte from current packet
void fifo_remove_packet(void);    // remove packet from FIFO, advance to next slot

#endif /* FIFO_H_ */