145 lines
5.2 KiB
C++
145 lines
5.2 KiB
C++
/************************************************************************/
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/* */
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/* Centre for Speech Technology Research */
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/* University of Edinburgh, UK */
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/* Copyright (c) 1996,1997 */
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/* All Rights Reserved. */
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/* */
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/* Permission is hereby granted, free of charge, to use and distribute */
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/* this software and its documentation without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of this work, and to */
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/* permit persons to whom this work is furnished to do so, subject to */
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/* the following conditions: */
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/* 1. The code must retain the above copyright notice, this list of */
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/* conditions and the following disclaimer. */
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/* 2. Any modifications must be clearly marked as such. */
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/* 3. Original authors' names are not deleted. */
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/* 4. The authors' names are not used to endorse or promote products */
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/* derived from this software without specific prior written */
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/* permission. */
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/* */
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/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
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/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
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/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
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/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
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/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
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/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
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/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
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/* THIS SOFTWARE. */
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/* */
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/*************************************************************************/
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#ifndef __EST_SERVICETABLE_H__
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#define __EST_SERVICETABLE_H__
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#include "EST_String.h"
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#include "EST_rw_status.h"
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#include "EST_TKVL.h"
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/** A global table of known services. Used for fringe and festival
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* servers.
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*
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* @author Richard Caley <rjc@cstr.ed.ac.uk>
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* @version $Id: EST_ServiceTable.h,v 1.2 2001/04/04 13:11:27 awb Exp $
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*/
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class EST_ServiceTable {
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public:
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/** A service record.
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*
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* This is returned by service lookup operations, it contains
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* enough information to contact the server and authenticate yourself.
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*/
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class Entry
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{
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public:
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/// Name of the server.
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EST_String name;
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/// Type of server (eg `fringe')
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EST_String type;
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/// Human readable hostname.
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EST_String hostname;
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/// Numeric IP address (###.###.###.###)
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EST_String address;
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/// A random string to send as authorisation.
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EST_String cookie;
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/// TCP port number.
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int port;
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/// Create an empty entry.
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Entry();
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/// A suitable human readable name for the entry.
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operator EST_String() const;
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/// All entries are taken to be different.
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friend bool operator == (const Entry &a, const Entry &b);
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/// Print in human readable form.
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friend ostream & operator << (ostream &s, const Entry &a);
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};
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private:
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class EntryTable
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{
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public:
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EST_TKVL<EST_String, Entry> t;
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typedef EST_TKVL<EST_String, Entry>::Entries Entries;
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typedef EST_TKVL<EST_String, Entry>::KeyEntries KeyEntries;
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};
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/// Table of available Fringe servers.
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static EntryTable entries;
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static bool random_init;
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static void init_random(void);
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public:
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/**@name Finding What Services Are Available.
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*
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* Servers maintain a per-user file which lists the processes
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* which are running in server mode by name. These functions read
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* that table. */
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//@{
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/// Read the users default table. <filename>~/.estServices</filename>
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static void read_table(void);
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/// Read a specific table.
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static void read_table(EST_String socketsFileName);
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/// Write the users default table. <filename>~/.estServices</filename>
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static void write_table(void);
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/// Write a specific table.
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static void write_table(EST_String socketsFileName);
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/// List the table to given stream
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static void list(ostream &s, const EST_String type);
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/// Return a list of server names.
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static void names(EST_TList<EST_String> &names, const EST_String type="");
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//@}
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/** Return the entry for the server with the given name and type.
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* If no such entry is found a dummy entry with a port of 0 is returned.
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*/
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static const Entry &lookup(const EST_String name,
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const EST_String type);
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/** Create an entry for a server of the given name and type which is
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* listening on the given socket.
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*/
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static const Entry &create(const EST_String name,
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const EST_String type,
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int socket);
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};
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#endif
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