Add a close method to sockets

src/platform-linux.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 644 matching lines @@
 //
 
 class LinuxSocket : public Socket {
  public:
   explicit LinuxSocket() {
     // Create the socket.
     socket_ = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   }
   explicit LinuxSocket(int socket): socket_(socket) { }
 
-
-  virtual ~LinuxSocket() {
-    if (IsValid()) {
-      // Close socket.
-      close(socket_);
-    }
-  }
+  virtual ~LinuxSocket() { Close(); }
 
   // Server initialization.
   bool Bind(const int port);
   bool Listen(int backlog) const;
   Socket* Accept() const;
 
   // Client initialization.
   bool Connect(const char* host, const char* port);
 
+  // Close.
+  bool Close();
+
   // Data Transimission
   int Send(const char* data, int len) const;
   int Receive(char* data, int len) const;
 
   bool IsValid() const { return socket_ != -1; }
 
  private:
   int socket_;
 };
 
@@ skipping 55 matching lines @@
   if (status != 0) {
     return false;
   }
 
   // Connect.
   status = connect(socket_, result->ai_addr, result->ai_addrlen);
   return status == 0;
 }
 
 
+bool LinuxSocket::Close() {
+  if (IsValid()) {
+    // Close socket.
+    int status = close(socket_);
+    socket_ = -1;
+    return status == 0;
+  }
+  return true;
+}
+
+
 int LinuxSocket::Send(const char* data, int len) const {
   int status = send(socket_, data, len, 0);
   return status;
 }
 
 
 int LinuxSocket::Receive(char* data, int len) const {
   int status = recv(socket_, data, len, 0);
   return status;
 }
@@ skipping 128 matching lines @@
   }
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal