base::Bind: Convert StreamSocket::Connect.

net/socket/socks5_client_socket.cc

 // 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.
 
 #include "net/socket/socks5_client_socket.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/debug/trace_event.h"
 #include "base/format_macros.h"
@@ skipping 16 matching lines @@
 COMPILE_ASSERT(sizeof(struct in_addr) == 4, incorrect_system_size_of_IPv4);
 COMPILE_ASSERT(sizeof(struct in6_addr) == 16, incorrect_system_size_of_IPv6);
 
 SOCKS5ClientSocket::SOCKS5ClientSocket(
     ClientSocketHandle* transport_socket,
     const HostResolver::RequestInfo& req_info)
     : ALLOW_THIS_IN_INITIALIZER_LIST(
           io_callback_(this, &SOCKS5ClientSocket::OnIOComplete)),
       transport_(transport_socket),
       next_state_(STATE_NONE),
-      user_callback_(NULL),
+      old_user_callback_(NULL),
       completed_handshake_(false),
       bytes_sent_(0),
       bytes_received_(0),
       read_header_size(kReadHeaderSize),
       host_request_info_(req_info),
       net_log_(transport_socket->socket()->NetLog()) {
 }
 
 SOCKS5ClientSocket::SOCKS5ClientSocket(
     StreamSocket* transport_socket,
     const HostResolver::RequestInfo& req_info)
     : ALLOW_THIS_IN_INITIALIZER_LIST(
           io_callback_(this, &SOCKS5ClientSocket::OnIOComplete)),
       transport_(new ClientSocketHandle()),
       next_state_(STATE_NONE),
-      user_callback_(NULL),
+      old_user_callback_(NULL),
       completed_handshake_(false),
       bytes_sent_(0),
       bytes_received_(0),
       read_header_size(kReadHeaderSize),
       host_request_info_(req_info),
       net_log_(transport_socket->NetLog()) {
   transport_->set_socket(transport_socket);
 }
 
 SOCKS5ClientSocket::~SOCKS5ClientSocket() {
   Disconnect();
 }
 
 int SOCKS5ClientSocket::Connect(OldCompletionCallback* callback) {
   DCHECK(transport_.get());
   DCHECK(transport_->socket());
   DCHECK_EQ(STATE_NONE, next_state_);
-  DCHECK(!user_callback_);
+  DCHECK(!old_user_callback_ && user_callback_.is_null());
 
   // If already connected, then just return OK.
   if (completed_handshake_)
     return OK;
 
   net_log_.BeginEvent(NetLog::TYPE_SOCKS5_CONNECT, NULL);
 
   next_state_ = STATE_GREET_WRITE;
   buffer_.clear();
 
   int rv = DoLoop(OK);
   if (rv == ERR_IO_PENDING) {
-    user_callback_ = callback;
+    old_user_callback_ = callback;
   } else {
     net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SOCKS5_CONNECT, rv);
   }
   return rv;
 }
+int SOCKS5ClientSocket::Connect(const CompletionCallback& callback) {
+  DCHECK(transport_.get());
+  DCHECK(transport_->socket());
+  DCHECK_EQ(STATE_NONE, next_state_);
+  DCHECK(!old_user_callback_ && user_callback_.is_null());
+
+  // If already connected, then just return OK.
+  if (completed_handshake_)
+    return OK;
+
+  net_log_.BeginEvent(NetLog::TYPE_SOCKS5_CONNECT, NULL);
+
+  next_state_ = STATE_GREET_WRITE;
+  buffer_.clear();
+
+  int rv = DoLoop(OK);
+  if (rv == ERR_IO_PENDING)
+    user_callback_ = callback;
+  else
+    net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SOCKS5_CONNECT, rv);
+
+  return rv;
+}
 
 void SOCKS5ClientSocket::Disconnect() {
   completed_handshake_ = false;
   transport_->socket()->Disconnect();
 
   // Reset other states to make sure they aren't mistakenly used later.
   // These are the states initialized by Connect().
   next_state_ = STATE_NONE;
-  user_callback_ = NULL;
+  old_user_callback_ = NULL;
+  user_callback_.Reset();
 }
 
 bool SOCKS5ClientSocket::IsConnected() const {
   return completed_handshake_ && transport_->socket()->IsConnected();
 }
 
 bool SOCKS5ClientSocket::IsConnectedAndIdle() const {
   return completed_handshake_ && transport_->socket()->IsConnectedAndIdle();
 }
 
@@ skipping 48 matching lines @@
   NOTREACHED();
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
 // Read is called by the transport layer above to read. This can only be done
 // if the SOCKS handshake is complete.
 int SOCKS5ClientSocket::Read(IOBuffer* buf, int buf_len,
                              OldCompletionCallback* callback) {
   DCHECK(completed_handshake_);
   DCHECK_EQ(STATE_NONE, next_state_);
-  DCHECK(!user_callback_);
+  DCHECK(!old_user_callback_);
 
   return transport_->socket()->Read(buf, buf_len, callback);
 }
 
 // Write is called by the transport layer. This can only be done if the
 // SOCKS handshake is complete.
 int SOCKS5ClientSocket::Write(IOBuffer* buf, int buf_len,
                              OldCompletionCallback* callback) {
   DCHECK(completed_handshake_);
   DCHECK_EQ(STATE_NONE, next_state_);
-  DCHECK(!user_callback_);
+  DCHECK(!old_user_callback_);
 
   return transport_->socket()->Write(buf, buf_len, callback);
 }
 
 bool SOCKS5ClientSocket::SetReceiveBufferSize(int32 size) {
   return transport_->socket()->SetReceiveBufferSize(size);
 }
 
 bool SOCKS5ClientSocket::SetSendBufferSize(int32 size) {
   return transport_->socket()->SetSendBufferSize(size);
 }
 
 void SOCKS5ClientSocket::DoCallback(int result) {
   DCHECK_NE(ERR_IO_PENDING, result);
-  DCHECK(user_callback_);
+  DCHECK(old_user_callback_ || !user_callback_.is_null());
 
   // Since Run() may result in Read being called,
   // clear user_callback_ up front.
-  OldCompletionCallback* c = user_callback_;
-  user_callback_ = NULL;
-  c->Run(result);
+  if (old_user_callback_) {
+    OldCompletionCallback* c = old_user_callback_;
+    old_user_callback_ = NULL;
+    c->Run(result);
+  } else {
+    CompletionCallback c = user_callback_;
+    user_callback_.Reset();
+    c.Run(result);
+  }
 }
 
 void SOCKS5ClientSocket::OnIOComplete(int result) {
   DCHECK_NE(STATE_NONE, next_state_);
   int rv = DoLoop(result);
   if (rv != ERR_IO_PENDING) {
     net_log_.EndEvent(NetLog::TYPE_SOCKS5_CONNECT, NULL);
     DoCallback(rv);
   }
 }
@@ skipping 287 matching lines @@
 
 int SOCKS5ClientSocket::GetPeerAddress(AddressList* address) const {
   return transport_->socket()->GetPeerAddress(address);
 }
 
 int SOCKS5ClientSocket::GetLocalAddress(IPEndPoint* address) const {
   return transport_->socket()->GetLocalAddress(address);
 }
 
 }  // namespace net