LTEUDP.h

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/*
 *  LTEUDP.h - LTEUDP include file for Spresense Arduino
 *  Copyright 2019 Sony Semiconductor Solutions Corporation
 *
 *  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 _LTE_UDP_H_
#define _LTE_UDP_H_
 
#ifdef SUBCORE
#error "LTEUDP library is NOT supported by SubCore."
#endif
 
/****************************************************************************
 * Included Files
 ****************************************************************************/
 
#include <Udp.h>
 
class IPAddress;
 
/****************************************************************************
 * class declaration
 ****************************************************************************/
 
class LTEUDPBuffer
{
public:
  LTEUDPBuffer();
  LTEUDPBuffer(size_t size);
  ~LTEUDPBuffer();
 
  size_t write(uint8_t val);
  size_t write(const uint8_t *buffer, size_t size);
  int available();
  int read();
  int read(char* buffer, size_t size);
  int peek();
 
private:
  size_t _maxSize;
  char *_buf;
  int _begin;
  int _end;
};
 
class LTEUDP : public UDP
{
public:
  LTEUDP();
 
  ~LTEUDP();
 
  uint8_t begin(uint16_t port);
 
  void stop();
 
  int beginPacket(IPAddress ip, uint16_t port);
 
  int beginPacket(const char *host, uint16_t port);
 
  int endPacket();
 
  size_t write(uint8_t val);
 
  size_t write(const uint8_t *buffer, size_t size);
 
  int parsePacket();
 
  int available();
 
  int read();
 
  int read(unsigned char* buffer, size_t len);
 
  int read(char* buffer, size_t len);
 
  int peek();
 
  void flush();
 
  IPAddress remoteIP();
 
  uint16_t remotePort();
 
  int setTimeout(uint32_t milliseconds);
 
private:
  int _fd;
  uint8_t *_wbuf;
  size_t _wbufSize;
  LTEUDPBuffer *_rbuf;
  IPAddress _remoteIp;
  uint16_t _remotePort;
};
 
#endif