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124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_IPC_LISTENER_HPP_INCLUDED__
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#define __ZMQ_IPC_LISTENER_HPP_INCLUDED__
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#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
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#include <string>
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#include "fd.hpp"
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#include "own.hpp"
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#include "stdint.hpp"
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#include "io_object.hpp"
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namespace zmq
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{
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class io_thread_t;
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class socket_base_t;
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class ipc_listener_t : public own_t, public io_object_t
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{
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public:
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ipc_listener_t (zmq::io_thread_t *io_thread_,
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zmq::socket_base_t *socket_, const options_t &options_);
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~ipc_listener_t ();
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// Set address to listen on.
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int set_address (const char *addr_);
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// Get the bound address for use with wildcards
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int get_address (std::string &addr_);
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private:
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// Handlers for incoming commands.
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void process_plug ();
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void process_term (int linger_);
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// Handlers for I/O events.
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void in_event ();
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// Close the listening socket.
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int close ();
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// Create wildcard path address
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static int create_wildcard_address(std::string& path_,
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std::string& file_);
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// Filter new connections if the OS provides a mechanism to get
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// the credentials of the peer process. Called from accept().
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# if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
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bool filter (fd_t sock);
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# endif
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// Accept the new connection. Returns the file descriptor of the
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// newly created connection. The function may return retired_fd
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// if the connection was dropped while waiting in the listen backlog.
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fd_t accept ();
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// True, if the underlying file for UNIX domain socket exists.
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bool has_file;
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// Name of the temporary directory (if any) that has the
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// the UNIX domain socket
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std::string tmp_socket_dirname;
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// Name of the file associated with the UNIX domain address.
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std::string filename;
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// Underlying socket.
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fd_t s;
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// Handle corresponding to the listening socket.
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handle_t handle;
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// Socket the listener belongs to.
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zmq::socket_base_t *socket;
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// String representation of endpoint to bind to
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std::string endpoint;
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// Acceptable temporary directory environment variables
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static const char *tmp_env_vars[];
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ipc_listener_t (const ipc_listener_t&);
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const ipc_listener_t &operator = (const ipc_listener_t&);
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};
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}
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#endif
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#endif
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