Diff: main.cpp

Revision:

0:c3fbb0514bfc

Child:

1:da09e6a94937

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Sep 05 15:42:09 2010 +0000
@@ -0,0 +1,195 @@
+
+// TCP Echo server
+// 2010/9/6
+
+
+/*
+
+(Execute Sample)
+PC side:
+telnet 192.168.0.25 12345
+Trying 192.168.0.25...
+Connected to 192.168.0.25.
+Escape character is '^]'.
+
+mbed side:
+Setup OK
+mbed IP Address is 192.168.0.25
+Binding..
+Listening...
+Listening: TCP Socket Accepted
+Listening: Incoming TCP connection from 192.168.0.7
+TCP Socket Readable
+Received&Wrote:test text
+
+TCP Socket Writable
+
+
+*/
+
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "TCPSocket.h"
+
+DigitalOut led4(LED4, "led4");
+
+// EthernetNetIf eth;
+EthernetNetIf eth(
+  IpAddr(192,168,0,25), //IP Address
+  IpAddr(255,255,255,0), //Network Mask
+  IpAddr(192,168,0,1), //Gateway
+  IpAddr(192,168,0,1)  //DNS
+);
+
+#define TCP_LISTENING_PORT 12345
+
+TCPSocket ListeningSock;
+TCPSocket* pConnectedSock; // for ConnectedSock
+Host client;
+TCPSocketErr err;
+
+void onConnectedTCPSocketEvent(TCPSocketEvent e)
+{
+   switch(e)
+    {
+    case TCPSOCKET_CONNECTED:
+        printf("TCP Socket Connected\r\n");
+        break;
+    case TCPSOCKET_WRITEABLE:
+      //Can now write some data...
+        printf("TCP Socket Writable\r\n");
+        break;
+    case TCPSOCKET_READABLE:
+      //Can now read dome data...
+        printf("TCP Socket Readable\r\n");
+       // Read in any available data into the buffer
+       char buff[128];
+       while ( int len = pConnectedSock->recv(buff, 128) ) {
+       // And send straight back out again
+           pConnectedSock->send(buff, len);
+           buff[len+1]=0; // make terminater
+           printf("Received&Wrote:%s\r\n",buff);
+       }
+       break;
+    case TCPSOCKET_CONTIMEOUT:
+        printf("TCP Socket Timeout\r\n");
+        break;
+    case TCPSOCKET_CONRST:
+        printf("TCP Socket CONRST\r\n");
+        break;
+    case TCPSOCKET_CONABRT:
+        printf("TCP Socket CONABRT\r\n");
+        break;
+    case TCPSOCKET_ERROR:
+        printf("TCP Socket Error\r\n");
+        break;
+    case TCPSOCKET_DISCONNECTED:
+    //Close socket...
+        printf("TCP Socket Disconnected\r\n");        
+        pConnectedSock->close();
+        break;
+    default:
+        printf("DEFAULT\r\n"); 
+      }
+}
+
+
+void onListeningTCPSocketEvent(TCPSocketEvent e)
+{
+    switch(e)
+    {
+    case TCPSOCKET_ACCEPT:
+        printf("Listening: TCP Socket Accepted\r\n");
+        // Accepts connection from client and gets connected socket.   
+        err=ListeningSock.accept(&client, &pConnectedSock);
+        if (err) {
+            printf("onListeningTcpSocketEvent : Could not accept connection.\r\n");
+            return; //Error in accept, discard connection
+        }
+        // Setup the new socket events
+        pConnectedSock->setOnEvent(&onConnectedTCPSocketEvent);
+        // We can find out from where the connection is coming by looking at the
+        // Host parameter of the accept() method
+        IpAddr clientIp = client.getIp();
+        printf("Listening: Incoming TCP connection from %d.%d.%d.%d\r\n", 
+           clientIp[0], clientIp[1], clientIp[2], clientIp[3]);
+       break;
+    // the following cases will not happen
+    case TCPSOCKET_CONNECTED:
+        printf("Listening: TCP Socket Connected\r\n");
+        break;
+    case TCPSOCKET_WRITEABLE:
+        printf("Listening: TCP Socket Writable\r\n");
+        break;
+    case TCPSOCKET_READABLE:
+        printf("Listening: TCP Socket Readable\r\n");
+        break;
+    case TCPSOCKET_CONTIMEOUT:
+        printf("Listening: TCP Socket Timeout\r\n");
+        break;
+    case TCPSOCKET_CONRST:
+        printf("Listening: TCP Socket CONRST\r\n");
+        break;
+    case TCPSOCKET_CONABRT:
+        printf("Listening: TCP Socket CONABRT\r\n");
+        break;
+    case TCPSOCKET_ERROR:
+        printf("Listening: TCP Socket Error\r\n");
+        break;
+    case TCPSOCKET_DISCONNECTED:
+    //Close socket...
+        printf("Listening: TCP Socket Disconnected\r\n");        
+        ListeningSock.close();
+        break;
+    default:
+        printf("DEFAULT\r\n"); 
+     };
+}
+
+
+int main() {
+  printf("\r\n");
+  printf("Setting up...\r\n");
+  EthernetErr ethErr = eth.setup();
+  if(ethErr)
+  {
+    printf("Error %d in setup.\r\n", ethErr);
+    return -1;
+  }
+  printf("Setup OK\r\n");
+
+  IpAddr ip = eth.getIp();
+  printf("mbed IP Address is %d.%d.%d.%d\r\n", ip[0], ip[1], ip[2], ip[3]);
+
+  
+  // Set the callbacks for Listening
+  ListeningSock.setOnEvent(&onListeningTCPSocketEvent); 
+  
+  // bind and listen on TCP
+  err=ListeningSock.bind(Host(IpAddr(), TCP_LISTENING_PORT));
+  printf("Binding..\r\n");
+  if(err)
+  {
+   //Deal with that error...
+    printf("Binding Error\n");
+  }
+   err=ListeningSock.listen(); // Starts listening
+   printf("Listening...\r\n");
+   if(err)
+   {
+    printf("Listening Error\r\n");
+   }
+ 
+  Timer tmr;
+  tmr.start();
+
+  while(true)
+  {
+    Net::poll();
+    if(tmr.read() > 0.2) // sec
+    {
+      led4=!led4; //Show that we are alive
+      tmr.reset();
+    }
+  }  
+}