[NaCl SDK] nacl_io: Add support for non-blocking connect/accept

native_client_sdk/src/libraries/nacl_io/mount_node_tcp.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 LIBRARIES_NACL_IO_MOUNT_NODE_TCP_H_
 #define LIBRARIES_NACL_IO_MOUNT_NODE_TCP_H_
 
 #include "nacl_io/ossocket.h"
 #ifdef PROVIDES_SOCKET_API
 
 #include <ppapi/c/pp_resource.h>
 #include <ppapi/c/ppb_tcp_socket.h>
 
 #include "nacl_io/event_emitter_tcp.h"
 #include "nacl_io/mount_node.h"
 #include "nacl_io/mount_node_socket.h"
 
 namespace nacl_io {
 
 class MountNodeTCP : public MountNodeSocket {
  public:
   explicit MountNodeTCP(Mount* mount);
   MountNodeTCP(Mount* mount, PP_Resource socket);
 
  protected:
   virtual Error Init(int open_flags);
   virtual void Destroy();
 
  public:
-  virtual EventEmitterTCP* GetEventEmitter();
+  virtual EventEmitter* GetEventEmitter();
 
+  virtual void QueueAccept();
+  virtual void QueueConnect();
   virtual void QueueInput();
   virtual void QueueOutput();
 
-  virtual Error Accept(PP_Resource* out_sock,
+  virtual Error Accept(const HandleAttr& attr,
+                       PP_Resource* out_sock,
                        struct sockaddr* addr,
                        socklen_t* len);
   virtual Error Bind(const struct sockaddr* addr, socklen_t len);
   virtual Error Listen(int backlog);
-  virtual Error Connect(const struct sockaddr* addr, socklen_t len);
+  virtual Error Connect(const HandleAttr& attr,
+                        const struct sockaddr* addr,
+                        socklen_t len);
+
+  void ConnectDone_Locked();
+  void ConnectFailed_Locked();
 
  protected:
-  void ConnectDone();
   virtual Error Recv_Locked(void* buf,
                             size_t len,
                             PP_Resource* out_addr,
                             int* out_len);
 
   virtual Error Send_Locked(const void* buf,
                             size_t len,
                             PP_Resource addr,
                             int* out_len);
 
   ScopedEventEmitterTCP emitter_;
+  PP_Resource accepted_socket_;
 };
 
 
 }  // namespace nacl_io
 
 #endif  // PROVIDES_SOCKET_API
 #endif  // LIBRARIES_NACL_IO_MOUNT_NODE_TCP_H_