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// Copyright 2017 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_TEST_TCP_SOCKET_PROXY_H_
#define NET_TEST_TCP_SOCKET_PROXY_H_
#include <stdint.h>
#include <memory>
#include "base/memory/ref_counted.h"
#include "base/threading/thread_checker.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace net {
class IPEndPoint;
// TcpSocketProxy proxies TCP connection from localhost to a remote IP address.
class TcpSocketProxy {
public:
explicit TcpSocketProxy(
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner);
~TcpSocketProxy();
// Initializes local socket for the proxy. If |local_port| is not 0 then the
// proxy will listen on that port. Otherwise the socket will be bound to an
// available port and local_port() should be used to get the port number.
// Returns false if initialization fails.
bool Initialize(int local_port = 0);
// Local port number for the proxy or 0 if the proxy is not initialized.
uint16_t local_port() const { return local_port_; }
// Starts the proxy for the specified |remote_endpoint|. Must be called after
// a successful Initialize() call and before any incoming connection on
// local_port() are initiated. Port number in |remote_endpoint| may be
// different from local_port().
void Start(const IPEndPoint& remote_endpoint);
private:
class Core;
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
// Core implements the proxy functionality. It runs on |io_task_runner_|.
std::unique_ptr<Core> core_;
uint16_t local_port_ = 0;
THREAD_CHECKER(thread_checker_);
DISALLOW_COPY_AND_ASSIGN(TcpSocketProxy);
};
} // namespace net
#endif // NET_TEST_TCP_SOCKET_PROXY_H_
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