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WiFiUdp.h
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/* | |
* Udp.cpp: Library to send/receive UDP packets. | |
* | |
* NOTE: UDP is fast, but has some important limitations (thanks to Warren Gray for mentioning these) | |
* 1) UDP does not guarantee the order in which assembled UDP packets are received. This | |
* might not happen often in practice, but in larger network topologies, a UDP | |
* packet can be received out of sequence. | |
* 2) UDP does not guard against lost packets - so packets *can* disappear without the sender being | |
* aware of it. Again, this may not be a concern in practice on small local networks. | |
* For more information, see http://www.cafeaulait.org/course/week12/35.html | |
* | |
* MIT License: | |
* Copyright (c) 2008 Bjoern Hartmann | |
* Permission is hereby granted, free of charge, to any person obtaining a copy | |
* of this software and associated documentation files (the "Software"), to deal | |
* in the Software without restriction, including without limitation the rights | |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
* copies of the Software, and to permit persons to whom the Software is | |
* furnished to do so, subject to the following conditions: | |
* | |
* The above copyright notice and this permission notice shall be included in | |
* all copies or substantial portions of the Software. | |
* | |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
* THE SOFTWARE. | |
* | |
* bjoern@cs.stanford.edu 12/30/2008 | |
*/ | |
#ifndef _WIFIUDP_H_ | |
#define _WIFIUDP_H_ | |
#include <Arduino.h> | |
#include <Udp.h> | |
#include <cbuf.h> | |
class WiFiUDP : public UDP { | |
private: | |
IPAddress multicast_ip; | |
IPAddress remote_ip; | |
uint16_t server_port; | |
uint16_t remote_port; | |
char * tx_buffer; | |
size_t tx_buffer_len; | |
cbuf * rx_buffer; | |
public: | |
int udp_server; //switch to public instead of private | |
WiFiUDP(); | |
~WiFiUDP(); | |
uint8_t begin(IPAddress a, uint16_t p); | |
uint8_t begin(uint16_t p); | |
uint8_t beginMulticast(IPAddress a, uint16_t p); | |
uint8_t udpBuffer[1460]; | |
void stop(); | |
int beginMulticastPacket(); | |
int beginPacket(); | |
int beginPacket(IPAddress ip, uint16_t port); | |
int beginPacket(const char *host, uint16_t port); | |
int endPacket(); | |
size_t write(uint8_t); | |
size_t write(const uint8_t *buffer, size_t size); | |
int parsePacket(); | |
int parsePacket2(); | |
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(); | |
}; | |
#endif /* _WIFIUDP_H_ */ |
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