2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2013, 2019, 2021 Sadie Powell <sadie@witchery.services>
5 * Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
6 * Copyright (C) 2012 Robby <robby@chatbelgie.be>
7 * Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
8 * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
10 * This file is part of InspIRCd. InspIRCd is free software: you can
11 * redistribute it and/or modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation, version 2.
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class CoreExport UIDGenerator
28 /** Holds the current UID. Used to generate the next one.
30 std::string current_uid;
32 /** Increments the current UID by one.
34 void IncrementUID(unsigned int pos);
38 * This is the maximum length of a UUID (unique user identifier).
39 * It allows up to 12,960 servers and 2,176,782,336 users per server.
41 static const unsigned int UUID_LENGTH = 9;
43 /** Initializes this UID generator with the given SID
44 * @param sid SID that conforms to InspIRCd::IsSID()
46 void init(const std::string& sid);
48 /** Returns the next available UID for this server.
52 /** Generates a pseudorandom SID based on a servername and a description
53 * Guaranteed to return the same if invoked with the same parameters
54 * @param servername The server name to use as seed
55 * @param serverdesc The server description to use as seed
58 static std::string GenerateSID(const std::string& servername, const std::string& serverdesc);