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// Copyright 2018 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_TRANSPORT_CLIENT_SOCKET_H_
#define NET_SOCKET_TRANSPORT_CLIENT_SOCKET_H_
#include "net/base/ip_endpoint.h"
#include "net/base/net_export.h"
#include "net/socket/connection_attempts.h"
#include "net/socket/stream_socket.h"
namespace net {
// A socket class that extends StreamSocket to provide methods that are relevant
// to a transport client socket.
class NET_EXPORT TransportClientSocket : public StreamSocket {
public:
TransportClientSocket();
TransportClientSocket(const TransportClientSocket&) = delete;
TransportClientSocket& operator=(const TransportClientSocket&) = delete;
~TransportClientSocket() override;
// Binds the socket to a local address, |local_addr|. Returns OK on success,
// and a net error code on failure.
virtual int Bind(const net::IPEndPoint& local_addr) = 0;
// Enables/disables buffering in the kernel. By default, on Linux, TCP sockets
// will wait up to 200ms for more data to complete a packet before
// transmitting. After calling this function, the kernel will not wait. See
// TCP_NODELAY in `man 7 tcp`. On Windows, the Nagle implementation is
// governed by RFC 896. SetTCPNoDelay() sets the TCP_NODELAY option. Use
// |no_delay| to enable or disable it. Returns true on success, and false on
// failure.
//
// Should not be called and will always fail until there is not an underlying
// platform socket ready to receive options. The underlying platform socket
// should always be ready after successful connection or slightly earlier
// during BeforeConnect handlers.
virtual bool SetNoDelay(bool no_delay);
// Enables or disables TCP Keep-Alive (which is the SO_KEEPALIVE option on the
// socket). The unit for the delay is in seconds. Returns true on success, and
// false on failure.
//
// Should not be called and will always fail until there is not an underlying
// platform socket ready to receive options. The underlying platform socket
// should always be ready after successful connection or slightly earlier
// during BeforeConnect handlers.
virtual bool SetKeepAlive(bool enable, int delay_secs);
};
} // namespace net
#endif // NET_SOCKET_TRANSPORT_CLIENT_SOCKET_H_
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