RF24Server.cpp

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/*
 RF24Server.cpp - Arduino implementation of a uIP wrapper class.
 Copyright (c) 2014 tmrh20@gmail.com, github.com/TMRh20
 Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
 All rights reserved.
 
 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 3 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/>.
  */
#include "RF24Ethernet.h"
#include "RF24Server.h"
 
extern "C" {
//#include "uip-conf.h"
}
 
/*************************************************************/
 
RF24Server::RF24Server(uint16_t port) : _port(htons(port))
{
}
 
/*************************************************************/
 
RF24Client RF24Server::available()
{
    Ethernet.tick();
    for (uip_userdata_t* data = &RF24Client::all_data[0]; data < &RF24Client::all_data[UIP_CONNS]; data++)
    {
        if (data->packets_in != 0 && (((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port) || ((data->state & UIP_CLIENT_REMOTECLOSED) && ((uip_userdata_closed_t*)data)->lport == _port)))
        {
            return RF24Client(data);
        }
    }
    return RF24Client();
}
 
/*************************************************************/
 
void RF24Server::begin()
{
    uip_listen(_port);
    RF24Ethernet.tick();
}
 
/*************************************************************/
#if defined(ESP32)
void RF24Server::begin(uint16_t port)
{
    _port = port;
    begin();
}
#endif
 
/*************************************************************/
 
size_t RF24Server::write(uint8_t c)
{
    return write(&c, 1);
}
 
/*************************************************************/
 
size_t RF24Server::write(const uint8_t* buf, size_t size)
{
    size_t ret = 0;
    for (uip_userdata_t* data = &RF24Client::all_data[0]; data < &RF24Client::all_data[UIP_CONNS]; data++)
    {
        if ((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port)
            ret += RF24Client::_write(data, buf, size);
    }
    return ret;
}
 
/*************************************************************/
 
void RF24Server::setTimeout(uint32_t timeout)
{
#if UIP_CONNECTION_TIMEOUT > 0
    for (uint8_t i = 0; i < UIP_CONNS; i++) {
        uip_userdata_t* data = &RF24Client::all_data[i];
        if (data) {
            data->connectTimeout = timeout;
        }
    }
#endif
}