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Diff: UdpSocket.h
- Revision:
- 9:a156d3de5647
- Child:
- 11:647d53d146f1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/UdpSocket.h Tue Aug 27 15:01:10 2019 +0000 @@ -0,0 +1,108 @@ +/* + UIPUdp.h - Arduino implementation of a UIP wrapper class. + Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de> + All rights reserved. + + Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com> + + 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/>. + */ +#ifndef UIPUDP_H +#define UIPUDP_H + +#include "mbed.h" +#include "utility/Udp.h" +#include "IpAddress.h" +#include "utility/MemPool.h" +extern "C" +{ +#include "utility/uip.h" +} +#define UIP_UDP_MAXDATALEN 1500 +#define UIP_UDP_PHYH_LEN UIP_LLH_LEN + UIP_IPUDPH_LEN +#define UIP_UDP_MAXPACKETSIZE UIP_UDP_MAXDATALEN + UIP_UDP_PHYH_LEN + +typedef struct +{ + memaddress out_pos; + memhandle packet_next; + memhandle packet_in; + memhandle packet_out; + bool send; +} uip_udp_userdata_t; + +class UdpSocket : public Udp +{ +private: + struct uip_udp_conn* _uip_udp_conn; + uip_udp_userdata_t appdata; +public: + UdpSocket(); // Constructor + virtual ~UdpSocket() { } // Virtual destructor + uint8_t begin(uint16_t); // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use + void stop(); // Finish with the UDP socket + // Sending UDP packets + // Start building up a packet to send to the remote host specific in ip and port + // Returns 1 if successful, 0 if there was a problem with the supplied IP address or port + int beginPacket(IpAddress ip, uint16_t port); + + // Start building up a packet to send to the remote host specific in host and port + // Returns 1 if successful, 0 if there was a problem resolving the hostname or port + int beginPacket(const char* host, uint16_t port); + + // Finish off this packet and send it + // Returns 1 if the packet was sent successfully, 0 if there was an error + int endPacket(); + + // Write a single byte into the packet + size_t write(uint8_t); + + // Write size bytes from buffer into the packet + size_t write(const uint8_t* buffer, size_t size); + + // using Print::write; + // Start processing the next available incoming packet + // Returns the size of the packet in bytes, or 0 if no packets are available + int parsePacket(); + + // Number of bytes remaining in the current packet + int available(); + + // Read a single byte from the current packet + int read(); + + // Read up to len bytes from the current packet and place them into buffer + // Returns the number of bytes read, or 0 if none are available + int read(unsigned char* buffer, size_t len); + // Read up to len characters from the current packet and place them into buffer + + // Returns the number of characters read, or 0 if none are available + int read(char* buffer, size_t len) { return read((unsigned char*)buffer, len); } + + // Return the next byte from the current packet without moving on to the next byte + int peek(); + void flush(); // Finish reading the current packet + + // Return the IP address of the host who sent the current incoming packet + IpAddress remoteIP(); + + // Return the port of the host who sent the current incoming packet + uint16_t remotePort(); +private: + friend void uipudp_appcall(); + + friend class UipEthernet; + static void _send(uip_udp_userdata_t* data); +}; +#endif