JUCE/modules/juce_events/interprocess/juce_InterprocessConnectionServer.h

/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2016 - ROLI Ltd.

   Permission is granted to use this software under the terms of the ISC license
   http://www.isc.org/downloads/software-support-policy/isc-license/

   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.

   THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH REGARD
   TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
   FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
   OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
   USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
   OF THIS SOFTWARE.

   -----------------------------------------------------------------------------

   To release a closed-source product which uses other parts of JUCE not
   licensed under the ISC terms, commercial licenses are available: visit
   www.juce.com for more information.

  ==============================================================================
*/

#pragma once


//==============================================================================
/**
    An object that waits for client sockets to connect to a port on this host, and
    creates InterprocessConnection objects for each one.

    To use this, create a class derived from it which implements the createConnectionObject()
    method, so that it creates suitable connection objects for each client that tries
    to connect.

    @see InterprocessConnection
*/
class JUCE_API  InterprocessConnectionServer    : private Thread
{
public:
    //==============================================================================
    /** Creates an uninitialised server object.
    */
    InterprocessConnectionServer();

    /** Destructor. */
    ~InterprocessConnectionServer();

    //==============================================================================
    /** Starts an internal thread which listens on the given port number.

        While this is running, in another process tries to connect with the
        InterprocessConnection::connectToSocket() method, this object will call
        createConnectionObject() to create a connection to that client.

        Use stop() to stop the thread running.

        @param portNumber    The port on which the server will receive
                             connections
        @param bindAddress   The address on which the server will listen
                             for connections. An empty string indicates
                             that it should listen on all addresses
                             assigned to this machine.

        @see createConnectionObject, stop
    */
    bool beginWaitingForSocket (int portNumber, const String& bindAddress = String());

    /** Terminates the listener thread, if it's active.

        @see beginWaitingForSocket
    */
    void stop();

protected:
    /** Creates a suitable connection object for a client process that wants to
        connect to this one.

        This will be called by the listener thread when a client process tries
        to connect, and must return a new InterprocessConnection object that will
        then run as this end of the connection.

        @see InterprocessConnection
    */
    virtual InterprocessConnection* createConnectionObject() = 0;


private:
    //==============================================================================
    ScopedPointer<StreamingSocket> socket;

    void run() override;

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (InterprocessConnectionServer)
};