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// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2000,2001 Alistair Riddoch
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// $Id: CommUnixListener.cpp,v 1.28 2007-05-29 00:39:18 alriddoch Exp $
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "CommUnixListener.h"
#include "CommLocalClient.h"
#include "CommServer.h"
#include "common/id.h"
#include "common/log.h"
#include "common/debug.h"
#include "common/system.h"
#include "common/globals.h"
#include <iostream>
#include <unistd.h>
#include <cassert>
#ifdef HAVE_SYS_UN_H
static const bool debug_flag = false;
/// \brief Constructor unix listen socket object.
///
/// @param svr Reference to the object that manages all socket communication.
CommUnixListener::CommUnixListener(CommServer & svr) : CommSocket(svr),
m_bound(false)
{
}
CommUnixListener::~CommUnixListener()
{
if (m_bound) {
::unlink(m_path.c_str());
}
}
int CommUnixListener::getFd() const
{
return m_unixListener.getSocket();
}
bool CommUnixListener::eof()
{
return false;
}
bool CommUnixListener::isOpen() const
{
return m_unixListener.is_open();
}
int CommUnixListener::read()
{
accept();
return 0;
}
void CommUnixListener::dispatch()
{
}
/// \brief Create and bind the listen socket.
///
/// If an initial attempt fails, then this function attempts to unlink the
/// unix socket path, and tries again. This method is deliberatly called
/// _after_ attempting to open the TCP listen socket, so that this
/// will never be called in an instance of cyphesis already exists.
int CommUnixListener::setup(const std::string & name)
{
m_path = var_directory + "/tmp/" + name;
m_unixListener.open(m_path);
m_bound = m_unixListener.is_open();
if (!m_bound) {
::unlink(m_path.c_str());
m_unixListener.open(m_path);
m_bound = m_unixListener.is_open();
}
return m_bound ? 0 : 1;
}
/// \brief Accept a new connect to the listen socket.
int CommUnixListener::accept()
{
debug(std::cout << "Local accepting.." << std::endl << std::flush;);
int asockfd = m_unixListener.accept();
if (asockfd < 0) {
return -1;
}
debug(std::cout << "Local accepted" << std::endl << std::flush;);
return create(asockfd);
}
int CommUnixListener::create(int asockfd)
{
std::string connection_id;
if (newId(connection_id) < 0) {
log(ERROR, "Unable to accept connection as no ID available");
closesocket(asockfd);
return -1;
}
CommLocalClient * newcli = new CommLocalClient(m_commServer, asockfd,
connection_id);
newcli->setup();
// Add this new client to the list.
m_commServer.addSocket(newcli);
m_commServer.addIdle(newcli);
return 0;
}
#endif // HAVE_SYS_UN_H
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