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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_SERVERSOCKET_HPP
#define INCLUDED_SERVERSOCKET_HPP
#include "memory"
#include "Socket.hpp"
#include "Log.hpp"
#include <Poco/Net/SocketAddress.h>
class SocketFactory
{
public:
virtual std::shared_ptr<Socket> create(const int fd) = 0;
};
/// A non-blocking, streaming socket.
class ServerSocket : public Socket
{
public:
ServerSocket(Socket::Type type, SocketPoll& clientPoller, std::shared_ptr<SocketFactory> sockFactory) :
Socket(type),
#if !MOBILEAPP
_type(type),
#endif
_clientPoller(clientPoller),
_sockFactory(std::move(sockFactory))
{
}
/// Control access to a bound TCP socket
enum Type { Local, Public };
/// Binds to a local address (Servers only).
/// Does not retry on error.
/// Returns true only on success.
virtual bool bind(Type type, int port);
/// Listen to incoming connections (Servers only).
/// Does not retry on error.
/// Returns true on success only.
bool listen(const int backlog = 64)
{
#if !MOBILEAPP
const int rc = ::listen(getFD(), backlog);
#else
const int rc = fakeSocketListen(getFD());
#endif
if (rc)
LOG_SYS("Failed to listen");
return rc == 0;
}
/// Accepts an incoming connection (Servers only).
/// Does not retry on error.
/// Returns a valid Socket shared_ptr on success only.
virtual std::shared_ptr<Socket> accept();
int getPollEvents(std::chrono::steady_clock::time_point /* now */,
int & /* timeoutMaxMs */) override
{
return POLLIN;
}
void dumpState(std::ostream& os) override;
void handlePoll(SocketDisposition &,
std::chrono::steady_clock::time_point /* now */,
int events) override
{
if (events & POLLIN)
{
std::shared_ptr<Socket> clientSocket = accept();
if (!clientSocket)
{
const std::string msg = "Failed to accept. (errno: ";
throw std::runtime_error(msg + std::strerror(errno) + ")");
}
LOG_DBG("Accepted client #" << clientSocket->getFD());
_clientPoller.insertNewSocket(clientSocket);
}
}
private:
#if !MOBILEAPP
Socket::Type _type;
#endif
SocketPoll& _clientPoller;
protected:
std::shared_ptr<SocketFactory> _sockFactory;
};
#if !MOBILEAPP
/// A non-blocking, streaming Unix Domain Socket for local use
class LocalServerSocket : public ServerSocket
{
public:
LocalServerSocket(SocketPoll& clientPoller, std::shared_ptr<SocketFactory> sockFactory) :
ServerSocket(Socket::Type::Unix, clientPoller, std::move(sockFactory))
{
}
virtual bool bind(Type, int) override { assert(false); return false; }
virtual std::shared_ptr<Socket> accept() override;
std::string bind();
private:
std::string _name;
};
#endif
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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