1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 #ifndef __TREESERVER_H__
15 #define __TREESERVER_H__
17 /** Each server in the tree is represented by one class of
18 * type TreeServer. A locally connected TreeServer can
19 * have a class of type TreeSocket associated with it, for
20 * remote servers, the TreeSocket entry will be NULL.
21 * Each server also maintains a pointer to its parent
22 * (NULL if this server is ours, at the top of the tree)
23 * and a pointer to its "Route" (see the comments in the
24 * constructors below), and also a dynamic list of pointers
25 * to its children which can be iterated recursively
26 * if required. Creating or deleting objects of type
27 i* TreeServer automatically maintains the hash_map of
28 * TreeServer items, deleting and inserting them as they
29 * are created and destroyed.
31 class TreeServer : public classbase
33 InspIRCd* ServerInstance; /* Creator */
34 TreeServer* Parent; /* Parent entry */
35 TreeServer* Route; /* Route entry */
36 std::vector<TreeServer*> Children; /* List of child objects */
37 irc::string ServerName; /* Server's name */
38 std::string ServerDesc; /* Server's description */
39 std::string VersionString; /* Version string or empty string */
40 int UserCount; /* Not used in this version */
41 int OperCount; /* Not used in this version */
42 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
43 time_t NextPing; /* After this time, the server should be PINGed*/
44 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
45 SpanningTreeUtilities* Utils; /* Utility class */
49 /** We don't use this constructor. Its a dummy, and won't cause any insertion
50 * of the TreeServer into the hash_map. See below for the two we DO use.
52 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance);
54 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
55 * represents our own server. Therefore, it has no route, no parent, and
56 * no socket associated with it. Its version string is our own local version.
58 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc);
60 /** When we create a new server, we call this constructor to initialize it.
61 * This constructor initializes the server's Route and Parent, and sets up
62 * its ping counters so that it will be pinged one minute from now.
64 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock, bool Hide);
66 int QuitUsers(const std::string &reason);
68 /** This method is used to add the structure to the
69 * hash_map for linear searches. It is only called
70 * by the constructors.
74 /** This method removes the reference to this object
75 * from the hash_map which is used for linear searches.
76 * It is only called by the default destructor.
81 * The 'route' is defined as the locally-
82 * connected server which can be used to reach this server.
84 TreeServer* GetRoute();
88 std::string GetName();
90 /** Get server description (GECOS)
92 std::string GetDesc();
94 /** Get server version string
96 std::string GetVersion();
98 /** Set time we are next due to ping this server
100 void SetNextPingTime(time_t t);
102 /** Get the time we are next due to ping this server
104 time_t NextPingTime();
106 /** Time of last ping used to calculate this->rtt below
110 /** Round trip time of last ping
114 /** True if this server is hidden
118 /** True if the server answered their last ping
120 bool AnsweredLastPing();
122 /** Set the server as responding to its last ping
126 /** Get the number of users on this server for MAP
130 /** Increment the user counter
134 /** Decrement the user counter
138 /** Get the oper count for this server
142 /** Get the TreeSocket pointer for local servers.
143 * For remote servers, this returns NULL.
145 TreeSocket* GetSocket();
147 /** Get the parent server.
148 * For the root node, this returns NULL.
150 TreeServer* GetParent();
152 /** Set the server version string
154 void SetVersion(const std::string &Version);
156 /** Return number of child servers
158 unsigned int ChildCount();
160 /** Return a child server indexed 0..n
162 TreeServer* GetChild(unsigned int n);
164 /** Add a child server
166 void AddChild(TreeServer* Child);
168 /** Delete a child server, return false if it didn't exist.
170 bool DelChild(TreeServer* Child);
172 /** Removes child nodes of this node, and of that node, etc etc.
173 * This is used during netsplits to automatically tidy up the
174 * server tree. It is slow, we don't use it for much else.