Defining global client variable for Web Server

Forum 2005-2010 (read only) Software Syntax & Programs
1

I'm using the example ethernet web server code and I'm trying to define the web client "Client client = server.available();" which is currently located in a loop as a global variable.

I have tried:

Client client; // Defining client outside of a class (globally)

loop(){

     client = server.available();

}

But returns the error:
no matching function for call to 'Client::Client()'

/Applications/Arduino.app/Contents/Resources/Java/hardware/libraries/Ethernet/Client.h:6: note: Client::Client(const Client&)

Would anyone know how to define client globally but still keep updating in a loop. So that I can do some processing on the client in other classes/functions.

This is the Arduino Ethernet Web Server example code (stripped down) for example.

/*
 * Web Server
 *
 */

#include <Ethernet.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 10, 0, 0, 177 };

Server server(80);

void setup()
{
  Ethernet.begin(mac, ip);
  server.begin();
}

void loop()
{
  Client client = server.available();
  if (client) {
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        }
      }
    }
}
2

I don't think you really want to do that; it appears as the returned Client from server.Available() is the first connected client with data in the buffer.

You could pass the client to your other functions from within loop; like this:

void loop(
{
     Client c = Server.available();
     DoWork(c);
}

void DoWork(Client &c)
{
   c.println("Hello");
}