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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@641 a592a061-630c-0410-9148-cb99ea01b6c8
124 lines
3.0 KiB
C++
124 lines
3.0 KiB
C++
// -*- C++ -*-
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/* This file is part of
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* ======================================================
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*
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* LyX, The Document Processor
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*
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* Copyright 1995 Matthias Ettrich
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* Copyright 1995-2000 The LyX Team.
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*
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* ====================================================== */
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#ifndef LYXSERVER_H
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#define LYXSERVER_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "LString.h"
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class LyXFunc;
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class LyXServer;
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/* --- i/o pipes --------------------------------------------------------- */
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/** This class managed the pipes used for communicating with clients.
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Usage: Initialize with pipe-filename-base, client class to receive
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messages, and callback-function that will be called with the messages.
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When you want to send, use "send()".
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This class encapsulates all the dirty communication and thus provides
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a clean string interface.
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*/
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class LyXComm
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{
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public:
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/** When we receive a message, we send it to a client.
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This is one of the small things that would have been a lot
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cleaner with a Signal/Slot thing.
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*/
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typedef void (*ClientCallbackfct)(LyXServer *, string const &);
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/// Construct with pipe-basename and callback to receive messages
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LyXComm(string const & pip, LyXServer * cli, ClientCallbackfct ccb = 0)
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: pipename(pip), client(cli), clientcb(ccb)
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{
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ready = false;
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openConnection();
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}
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///
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~LyXComm() {
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closeConnection();
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}
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/// Send message
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void send(string const &);
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/// We receive messages via XForms through this callback
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static void callback(int fd, void *v);
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private:
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/// Open pipes
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void openConnection();
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/// Close pipes
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void closeConnection();
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/// This is -1 if not open
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int infd;
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/// This is -1 if not open
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int outfd;
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/// Are we up and running?
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bool ready;
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/// Base of pipename including path
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string pipename;
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/// The client
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LyXServer * client;
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/// The client callback function
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ClientCallbackfct clientcb;
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};
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/* --- prototypes -------------------------------------------------------- */
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class LyXServer
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{
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public:
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// FIXME IN 0.13
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// Hack! This should be changed in 0.13
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/// The lyx server should not take an argument "LyXFunc" but this is
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// how it will be done for 0.12. In 0.13 we must write a non-gui
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// bufferview.
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// IMO lyxserver is atypical, and for the moment the only one, non-gui
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// bufferview. We just have to find a way to handle situations like if
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// lyxserver is using a buffer that is being edited with a bufferview.
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// With a common buffer list this is not a problem, maybe. (Alejandro)
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LyXServer(LyXFunc * f, string const & pip)
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: numclients(0), func(f), pipes(pip, (this), callback)
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{ }
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///
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~LyXServer();
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///
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void notifyClient(string const &);
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private:
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///
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static void callback(LyXServer *, string const & msg);
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/// Names and number of current clients
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enum { MAX_CLIENTS = 10 };
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string clients[MAX_CLIENTS];
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int numclients;
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///
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LyXFunc * func;
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///
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LyXComm pipes;
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};
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#endif /* _LYXSERVER_H_ */
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/* === End of File: lyxserver.h ========================================== */
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