Move server socket functionality from TCPServerSocket into TCPSocket.

net/socket/tcp_socket_libevent.h

+// Copyright (c) 2013 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 NET_SOCKET_TCP_SOCKET_LIBEVENT_H_
+#define NET_SOCKET_TCP_SOCKET_LIBEVENT_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/threading/non_thread_safe.h"
+#include "net/base/address_family.h"
+#include "net/base/completion_callback.h"
+#include "net/base/net_export.h"
+#include "net/base/net_log.h"
+
+namespace net {
+
+class IPEndPoint;
+
+// TODO(yzshen): This class is incomplete. TCP client operations (Connect/Read/
+// Write/etc.) will be added. And TCPClientSocket will be changed to be a
+// wrapper around TCPSocket.
+class NET_EXPORT TCPSocketLibevent : public base::NonThreadSafe,
+                                     public base::MessageLoopForIO::Watcher {
+ public:
+  TCPSocketLibevent(NetLog* net_log, const NetLog::Source& source);
+  virtual ~TCPSocketLibevent();
+
+  int Create(AddressFamily family);
+  // Takes ownership of |socket|.
+  int Adopt(int socket);
+  // Returns a socket file descriptor. The ownership is transferred to the
+  // caller.
+  int Release();
+  int Bind(const IPEndPoint& address);
+  int GetLocalAddress(IPEndPoint* address) const;
+  int Listen(int backlog);
+  int Accept(scoped_ptr<TCPSocketLibevent>* socket,
+             IPEndPoint* address,
+             const CompletionCallback& callback);
+  int SetDefaultOptionsForServer();
+  int SetAddressReuse(bool allow);
+  void Close();
+
+  const BoundNetLog& net_log() const { return net_log_; }
+
+  // MessageLoopForIO::Watcher implementation.
+  virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
+  virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
+
+ private:
+  int AcceptInternal(scoped_ptr<TCPSocketLibevent>* socket,
+                     IPEndPoint* address);
+
+  int socket_;
+
+  base::MessageLoopForIO::FileDescriptorWatcher accept_socket_watcher_;
+
+  scoped_ptr<TCPSocketLibevent>* accept_socket_;
+  IPEndPoint* accept_address_;
+  CompletionCallback accept_callback_;
+
+  BoundNetLog net_log_;
+
+  DISALLOW_COPY_AND_ASSIGN(TCPSocketLibevent);
+};
+
+}  // namespace net
+
+#endif  // NET_SOCKET_TCP_SOCKET_LIBEVENT_H_