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add operator==, localPort, remotePort and remoteIP to UIPClient, new …
…example AdvancedChatServer.ino
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/* | ||
Advanced Chat Server | ||
A simple server that distributes any incoming messages to all | ||
connected clients but the client the message comes from. | ||
To use telnet to your device's IP address and type. | ||
You can see the client's input in the serial monitor as well. | ||
Using an Arduino Wiznet Ethernet shield. | ||
Circuit: | ||
* Ethernet shield attached to pins 10, 11, 12, 13 | ||
* Analog inputs attached to pins A0 through A5 (optional) | ||
created 18 Dec 2009 | ||
by David A. Mellis | ||
modified 9 Apr 2012 | ||
by Tom Igoe | ||
redesigned to make use of operator== 25 Nov 2013 | ||
by Norbert Truchsess | ||
*/ | ||
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#include <UIPEthernet.h> | ||
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// Enter a MAC address and IP address for your controller below. | ||
// The IP address will be dependent on your local network. | ||
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byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; | ||
IPAddress ip(192,168,0,6); | ||
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// telnet defaults to port 23 | ||
EthernetServer server(23); | ||
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EthernetClient clients[4]; | ||
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void setup() { | ||
// initialize the ethernet device | ||
Ethernet.begin(mac, ip); | ||
// start listening for clients | ||
server.begin(); | ||
// Open serial communications and wait for port to open: | ||
Serial.begin(9600); | ||
while (!Serial) { | ||
; // wait for serial port to connect. Needed for Leonardo only | ||
} | ||
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Serial.print("Chat server address:"); | ||
Serial.println(Ethernet.localIP()); | ||
} | ||
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void loop() { | ||
// wait for a new client: | ||
EthernetClient client = server.available(); | ||
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if (client) { | ||
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boolean newClient = true; | ||
for (byte i=0;i<4;i++) { | ||
//check whether this client refers to the same socket as one of the existing instances: | ||
if (clients[i]==client) { | ||
newClient = false; | ||
break; | ||
} | ||
} | ||
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if (newClient) { | ||
//check which of the existing clients can be overridden: | ||
for (byte i=0;i<4;i++) { | ||
if (!clients[i] && clients[i]!=client) { | ||
clients[i] = client; | ||
break; | ||
} | ||
} | ||
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// clead out the input buffer: | ||
client.flush(); | ||
Serial.println("We have a new client"); | ||
client.println("Hello, client!"); | ||
client.print("my IP: "); | ||
client.println(Ethernet.localIP()); | ||
client.print("my port: "); | ||
client.println(client.localPort()); | ||
client.print("your IP: "); | ||
client.println(client.remoteIP()); | ||
client.print("your port: "); | ||
client.println(client.remotePort()); | ||
} | ||
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if (client.available() > 0) { | ||
// read the bytes incoming from the client: | ||
char thisChar = client.read(); | ||
// echo the bytes back to all other connected clients: | ||
for (byte i=0;i<4;i++) { | ||
if (!clients[i] || (clients[i]==client)) { | ||
continue; | ||
} | ||
clients[i].write(thisChar); | ||
} | ||
// echo the bytes to the server as well: | ||
Serial.write(thisChar); | ||
} | ||
} | ||
for (byte i=0;i<4;i++) { | ||
if (!(clients[i].connected())) { | ||
// client.stop() invalidates the internal socket-descriptor, so next use of == will allways return false; | ||
clients[i].stop(); | ||
} | ||
} | ||
} |