mbed OS5
Fork of UIPEthernet by
UIPUdp.h
- Committer:
- hudakz
- Date:
- 2014-09-15
- Revision:
- 0:5350a66d5279
- Child:
- 2:049ce85163c5
File content as of revision 0:5350a66d5279:
/* UIPUdp.h - Arduino implementation of a uIP wrapper class. 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/>. */ #ifndef UIPUDP_H #define UIPUDP_H #include "ethernet_comp.h" #include "mbed.h" #include <Udp.h> #include "mempool.h" extern "C" { #include "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 #ifndef UIP_UDP_NUMPACKETS #define UIP_UDP_NUMPACKETS 5 #endif class UIPUDP : public UDP { private: struct uip_udp_conn* _uip_udp_conn; struct appdata_t { uint16_t rport; IPAddress ripaddr; memaddress out_pos; memhandle packets_in[UIP_UDP_NUMPACKETS]; memhandle packet_in; memhandle packet_out; bool send; } appdata; public: UIPUDP(void); // Constructor 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(void); // 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(void); // 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(void); // Number of bytes remaining in the current packet int available(void); // Read a single byte from the current packet int read(void); // 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); void flush(void); // Finish reading the current packet // Return the IP address of the host who sent the current incoming packet IPAddress remoteIP(void); // Return the port of the host who sent the current incoming packet uint16_t remotePort(void); private: static void uip_callback(uip_udp_appstate_t* s); }; #endif