P2P Sockets host implementation.

content/browser/renderer_host/p2p_socket_host_posix.h

+// Copyright (c) 2011 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.
+
+#ifndef CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_POSIX_H_
+#define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_POSIX_H_
+
+#include "content/common/p2p_sockets.h"
+
+#include "base/message_loop.h"
+#include "content/browser/renderer_host/p2p_socket_host.h"
+
+class P2PSocketHostPosix : public P2PSocketHost {
+ public:
+  P2PSocketHostPosix(P2PSocketsHost* host, int routing_id, int id);

[jam, 2011/03/02 00:41:09]

if only the factory method is used to construct this, then the constructor
should be private

[Sergey Ulanov, 2011/03/02 11:00:47]

The factory method is in a different class (P2PSocketHost), so this method has
to be public

+  ~P2PSocketHostPosix();
+
+  virtual bool Init();
+  virtual void Send(P2PSocketAddress socket_address,
+                    const std::vector<char>& data);
+  virtual void DestroyConnection(P2PSocketAddress socket_address);
+
+ private:
+  enum State {
+    STATE_UNINITIALIZED,
+    STATE_OPEN,
+    STATE_ERROR,
+  };
+
+  class ReadWatcher : public MessageLoopForIO::Watcher {

[jam, 2011/03/02 00:41:09]

comment please

[Sergey Ulanov, 2011/03/02 11:00:47]

Done.

+   public:
+    explicit ReadWatcher(P2PSocketHostPosix* socket) : socket_(socket) { }
+
+    // MessageLoopForIO::Watcher methods
+    virtual void OnFileCanReadWithoutBlocking(int /* fd */) {
+      socket_->DidCompleteRead();
+    }
+    virtual void OnFileCanWriteWithoutBlocking(int /* fd */) {}
+
+   private:
+    P2PSocketHostPosix* socket_;
+
+    DISALLOW_COPY_AND_ASSIGN(ReadWatcher);
+  };
+
+  void DidCompleteRead();
+  void OnError();
+
+  State state_;
+  int socket_;
+  MessageLoopForIO::FileDescriptorWatcher read_socket_watcher_;
+  ReadWatcher read_watcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(P2PSocketHostPosix);
+};
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_POSIX_H_