Henrik Ekblad
2fd948fc66
Upgraded RF24 to latest version which supports SoftSPI. Added DigitalIO and UTFT libraries to support the new example. Fix problem reported in RelayWithButtonActuator example.
127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
/*
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UIPUdp.h - Arduino implementation of a uIP wrapper class.
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Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
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All rights reserved.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UIPUDP_H
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#define UIPUDP_H
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#include "ethernet_comp.h"
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#include "Arduino.h"
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#include <Udp.h>
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#include "utility/mempool.h"
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extern "C" {
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#include "utility/uip.h"
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}
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#define UIP_UDP_MAXDATALEN 1500
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#define UIP_UDP_PHYH_LEN UIP_LLH_LEN+UIP_IPUDPH_LEN
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#define UIP_UDP_MAXPACKETSIZE UIP_UDP_MAXDATALEN+UIP_UDP_PHYH_LEN
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typedef struct {
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memaddress out_pos;
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memhandle packet_next;
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memhandle packet_in;
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memhandle packet_out;
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boolean send;
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} uip_udp_userdata_t;
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class UIPUDP : public UDP
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{
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private:
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struct uip_udp_conn *_uip_udp_conn;
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uip_udp_userdata_t appdata;
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public:
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UIPUDP(); // Constructor
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uint8_t
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begin(uint16_t);// initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
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void
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stop(); // Finish with the UDP socket
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// Sending UDP packets
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// Start building up a packet to send to the remote host specific in ip and port
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// Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
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int
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beginPacket(IPAddress ip, uint16_t port);
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// Start building up a packet to send to the remote host specific in host and port
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// Returns 1 if successful, 0 if there was a problem resolving the hostname or port
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int
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beginPacket(const char *host, uint16_t port);
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// Finish off this packet and send it
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// Returns 1 if the packet was sent successfully, 0 if there was an error
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int
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endPacket();
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// Write a single byte into the packet
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size_t
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write(uint8_t);
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// Write size bytes from buffer into the packet
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size_t
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write(const uint8_t *buffer, size_t size);
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using Print::write;
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// Start processing the next available incoming packet
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// Returns the size of the packet in bytes, or 0 if no packets are available
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int
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parsePacket();
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// Number of bytes remaining in the current packet
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int
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available();
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// Read a single byte from the current packet
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int
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read();
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// Read up to len bytes from the current packet and place them into buffer
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// Returns the number of bytes read, or 0 if none are available
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int
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read(unsigned char* buffer, size_t len);
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// Read up to len characters from the current packet and place them into buffer
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// Returns the number of characters read, or 0 if none are available
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int
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read(char* buffer, size_t len)
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{
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return read((unsigned char*) buffer, len);
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}
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;
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// Return the next byte from the current packet without moving on to the next byte
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int
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peek();
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void
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flush(); // Finish reading the current packet
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// Return the IP address of the host who sent the current incoming packet
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IPAddress
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remoteIP();
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// Return the port of the host who sent the current incoming packet
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uint16_t
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remotePort();
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private:
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friend void uipudp_appcall(void);
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friend class UIPEthernetClass;
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static void _send(uip_udp_userdata_t *data);
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};
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#endif
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