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// Copyright 2015 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 "blimp/net/tcp_engine_transport.h"
#include "base/callback.h"
#include "base/callback_helpers.h"
#include "base/memory/scoped_ptr.h"
#include "blimp/net/stream_socket_connection.h"
#include "net/socket/stream_socket.h"
#include "net/socket/tcp_server_socket.h"
namespace blimp {
TCPEngineTransport::TCPEngineTransport(const net::IPEndPoint& address,
net::NetLog* net_log)
: address_(address), net_log_(net_log) {}
TCPEngineTransport::~TCPEngineTransport() {}
int TCPEngineTransport::Connect(const net::CompletionCallback& callback) {
DCHECK(!accepted_socket_);
DCHECK(!callback.is_null());
if (!server_socket_) {
server_socket_.reset(
new net::TCPServerSocket(net_log_, net::NetLog::Source()));
int result = server_socket_->Listen(address_, 5);
if (result != net::OK) {
server_socket_.reset();
return result;
}
}
net::CompletionCallback accept_callback = base::Bind(
&TCPEngineTransport::OnTCPConnectAccepted, base::Unretained(this));
int result = server_socket_->Accept(&accepted_socket_, accept_callback);
if (result == net::OK) {
callback.Run(result);
} else if (result == net::ERR_IO_PENDING) {
connect_callback_ = callback;
} else {
// TODO(haibinlu): investigate when we can keep using this server socket.
server_socket_.reset();
}
return result;
}
scoped_ptr<BlimpConnection> TCPEngineTransport::TakeConnection() {
DCHECK(connect_callback_.is_null());
DCHECK(accepted_socket_);
return make_scoped_ptr(new StreamSocketConnection(accepted_socket_.Pass()));
}
int TCPEngineTransport::GetLocalAddressForTesting(
net::IPEndPoint* address) const {
DCHECK(server_socket_);
return server_socket_->GetLocalAddress(address);
}
void TCPEngineTransport::OnTCPConnectAccepted(int result) {
DCHECK(accepted_socket_);
if (result != net::OK) {
accepted_socket_.reset();
}
base::ResetAndReturn(&connect_callback_).Run(result);
}
} // namespace blimp
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