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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_IPCLISTENER_HPP
#define ZT_IPCLISTENER_HPP
#include "../node/Constants.hpp"
#include "../node/Thread.hpp"
#include "../node/NonCopyable.hpp"
#include "IpcConnection.hpp"
#include <string>
#include <stdexcept>
#ifdef __WINDOWS__
#include <WinSock2.h>
#include <Windows.h>
#define ZT_IPC_ENDPOINT_BASE "\\\\.\\pipe\\ZeroTierOne-"
#else
#define ZT_IPC_ENDPOINT_BASE "/tmp/.ZeroTierOne-"
#endif
namespace ZeroTier {
/**
* IPC incoming connection listener (Unix domain sockets or named pipes on Windows)
*/
class IpcListener : NonCopyable
{
public:
/**
* Listen for IPC connections
*
* The supplied handler is passed on to incoming instances of IpcConnection. When
* a connection is first opened, it is called with IPC_EVENT_NEW_CONNECTION. The
* receiver must take ownership of the connection object. When a connection is
* closed, IPC_EVENT_CONNECTION_CLOSING is generated. At this point (or after) the
* receiver must delete the object. IPC_EVENT_COMMAND is generated when lines of
* text are read, and in this cases the last argument is not NULL. No closed event
* is generated in the event of manual delete if the connection is still open.
*
* Yeah, this whole callback model sort of sucks. Might rethink and replace with
* some kind of actor model or something if it gets too unweildy. But for now the
* use cases are simple enough that it's not too bad.
*
* @param commandHandler Function to call for each command
* @param arg First argument to pass to handler
* @throws std::runtime_error Unable to bind to endpoint
*/
IpcListener(const char *ep,void (*commandHandler)(void *,IpcConnection *,IpcConnection::EventType,const char *),void *arg);
~IpcListener();
void threadMain()
throw();
private:
std::string _endpoint;
void (*_handler)(void *,IpcConnection *,IpcConnection::EventType,const char *);
void *_arg;
#ifdef __WINDOWS__
volatile bool _run;
volatile bool _running;
#else
volatile int _sock;
#endif
Thread _thread;
};
} // namespace ZeroTier
#endif
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