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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_SOCKET_SERVER_SOCKET_H_
#define NET_SOCKET_SERVER_SOCKET_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "net/base/completion_once_callback.h"
#include "net/base/net_export.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace net {
class IPEndPoint;
class StreamSocket;
class NET_EXPORT ServerSocket {
public:
ServerSocket();
ServerSocket(const ServerSocket&) = delete;
ServerSocket& operator=(const ServerSocket&) = delete;
virtual ~ServerSocket();
// Binds the socket and starts listening. Destroys the socket to stop
// listening.
// |ipv6_only| can be used by inheritors to control whether the server listens
// on IPv4/IPv6 or just IPv6 -- |true| limits connections to IPv6 only,
// |false| allows both IPv4/IPv6 connections; leaving the value unset implies
// default behavior (|true| on Windows, |false| on Posix).
virtual int Listen(const IPEndPoint& address,
int backlog,
absl::optional<bool> ipv6_only) = 0;
// Binds the socket with address and port, and starts listening. It expects
// a valid IPv4 or IPv6 address. Otherwise, it returns ERR_ADDRESS_INVALID.
virtual int ListenWithAddressAndPort(const std::string& address_string,
uint16_t port,
int backlog);
// Gets current address the socket is bound to.
virtual int GetLocalAddress(IPEndPoint* address) const = 0;
// Accepts connection. Callback is called when new connection is
// accepted.
virtual int Accept(std::unique_ptr<StreamSocket>* socket,
CompletionOnceCallback callback) = 0;
// Accepts connection. Callback is called when new connection is accepted.
// Note: |peer_address| may or may not be populated depending on the
// implementation.
virtual int Accept(std::unique_ptr<StreamSocket>* socket,
CompletionOnceCallback callback,
IPEndPoint* peer_address);
};
} // namespace net
#endif // NET_SOCKET_SERVER_SOCKET_H_
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