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 bool Warned; /* True if we've warned opers about high latency on this server */
51 /** We don't use this constructor. Its a dummy, and won't cause any insertion
52 * of the TreeServer into the hash_map. See below for the two we DO use.
54 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance);
56 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
57 * represents our own server. Therefore, it has no route, no parent, and
58 * no socket associated with it. Its version string is our own local version.
60 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc);
62 /** When we create a new server, we call this constructor to initialize it.
63 * This constructor initializes the server's Route and Parent, and sets up
64 * its ping counters so that it will be pinged one minute from now.
66 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock, bool Hide);
68 int QuitUsers(const std::string &reason);
70 /** This method is used to add the structure to the
71 * hash_map for linear searches. It is only called
72 * by the constructors.
76 /** This method removes the reference to this object
77 * from the hash_map which is used for linear searches.
78 * It is only called by the default destructor.
83 * The 'route' is defined as the locally-
84 * connected server which can be used to reach this server.
86 TreeServer* GetRoute();
90 std::string GetName();
92 /** Get server description (GECOS)
94 std::string GetDesc();
96 /** Get server version string
98 std::string GetVersion();
100 /** Set time we are next due to ping this server
102 void SetNextPingTime(time_t t);
104 /** Get the time we are next due to ping this server
106 time_t NextPingTime();
108 /** Time of last ping used to calculate this->rtt below
112 /** Last ping time in microseconds, used to calculate round trip time
114 unsigned long LastPingMsec;
116 /** Round trip time of last ping
120 /** True if this server is hidden
124 /** True if the server answered their last ping
126 bool AnsweredLastPing();
128 /** Set the server as responding to its last ping
132 /** Get the number of users on this server for MAP
136 /** Increment the user counter
140 /** Decrement the user counter
144 /** Get the oper count for this server
148 /** Get the TreeSocket pointer for local servers.
149 * For remote servers, this returns NULL.
151 TreeSocket* GetSocket();
153 /** Get the parent server.
154 * For the root node, this returns NULL.
156 TreeServer* GetParent();
158 /** Set the server version string
160 void SetVersion(const std::string &Version);
162 /** Return number of child servers
164 unsigned int ChildCount();
166 /** Return a child server indexed 0..n
168 TreeServer* GetChild(unsigned int n);
170 /** Add a child server
172 void AddChild(TreeServer* Child);
174 /** Delete a child server, return false if it didn't exist.
176 bool DelChild(TreeServer* Child);
178 /** Removes child nodes of this node, and of that node, etc etc.
179 * This is used during netsplits to automatically tidy up the
180 * server tree. It is slow, we don't use it for much else.