Implement chrome.socket.bind/listen/accept for TCP server socket.

chrome/common/extensions/api/socket.idl

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 namespace socket {
   enum SocketType {
     tcp,
     udp
   };
 
   // The socket options.
   dictionary CreateOptions {
   };
 
   dictionary CreateInfo {
     // The id of the newly created socket.
     long socketId;
   };
 
+  dictionary AcceptInfo {
+    // The id of the accepted socket.
+    long socketId;
+    long resultCode;
+  };
+
   callback CreateCallback = void (CreateInfo createInfo);
 
   callback ConnectCallback = void (long result);
 
   callback BindCallback = void (long result);
 
+  callback ListenCallback = void (long result);
+
+  callback AcceptCallback = void (AcceptInfo acceptInfo);
+
   dictionary ReadInfo {
     // The resultCode returned from the underlying read() call.
     long resultCode;
 
     ArrayBuffer data;
   };
 
   callback ReadCallback = void (ReadInfo readInfo);
 
   dictionary WriteInfo {
@@ skipping 89 matching lines @@
     // and <code>write()</code> calls.
     // |socketId| : The socketId.
     // |hostname| : The hostname or IP address of the remote machine.
     // |port| : The port of the remote machine.
     // |callback| : Called when the connection attempt is complete.
     static void connect(long socketId,
                         DOMString hostname,
                         long port,
                         ConnectCallback callback);
 
-    // Binds the local address for socket. Currently, it does not support
-    // TCP socket.
+    // Binds the local address for socket.
     // |socketId| : The socketId.
     // |address| : The address of the local machine.
     // |port| : The port of the local machine.
     // |callback| : Called when the bind attempt is complete.
     static void bind(long socketId,
                      DOMString address,
                      long port,
                      BindCallback callback);
 
+    // This method applies to TCP sockets only.
+    // Listens for connections on the specified port that this socket was bound
+    // to. This effectively makes this a server socket and client socket
+    // functions (connect, read, write) can no longer be used on this socket.
+    // |socketId| : The socketId.
+    // |backlog| : Length of the socket's accept queue.
+    static void listen(long socketId,
+                       long backlog,
+                       ListenCallback callback);
+
+    // This method applies to TCP sockets only.
+    // Starts waiting for connections on the listening server socket.
+    // |socketId| : The socketId.
+    // |callback| : The callback is invoked when a new socket is accepted.
+    static void accept(long socketId,
+                       AcceptCallback callback);
+
     // Disconnects the socket. For UDP sockets, <code>disconnect</code> is a
     // non-operation but is safe to call.
     // |socketId| : The socketId.
     static void disconnect(long socketId);
 
     // Reads data from the given connected socket.
     // |socketId| : The socketId.
     // |bufferSize| : The read buffer size.
     // |callback| : Delivers data that was available to be read without
     // blocking.
@@ skipping 56 matching lines @@
     // |callback| : Called when the state is available.
     static void getInfo(long socketId,
                         GetInfoCallback callback);
 
     // Retrieves information about local adapters on this system.
     // |callback| : Called when local adapter information is available.
     static void getNetworkList(GetNetworkCallback callback);
   };
 
 };