rename ipc/ to control/

control/IpcListener.hpp

@@ -0,0 +1,96 @@
+/*
+ * 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