1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/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 unsigned int ServerUserCount; /* How many users are on this server? [note: doesn't care about +i] */
41 unsigned int ServerOperCount; /* How many opers are on this server? */
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 */
46 std::string sid; /* Server ID */
50 * @throws CoreException on duplicate ID
52 void SetID(const std::string &id);
57 bool Warned; /* True if we've warned opers about high latency on this server */
58 bool bursting; /* whether or not this server is bursting */
60 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
61 * represents our own server. Therefore, it has no route, no parent, and
62 * no socket associated with it. Its version string is our own local version.
64 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, const std::string &id);
66 /** When we create a new server, we call this constructor to initialize it.
67 * This constructor initializes the server's Route and Parent, and sets up
68 * its ping counters so that it will be pinged one minute from now.
70 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, const std::string &id, TreeServer* Above, TreeSocket* Sock, bool Hide);
72 int QuitUsers(const std::string &reason);
74 /** This method is used to add the structure to the
75 * hash_map for linear searches. It is only called
76 * by the constructors.
80 /** This method removes the reference to this object
81 * from the hash_map which is used for linear searches.
82 * It is only called by the default destructor.
87 * The 'route' is defined as the locally-
88 * connected server which can be used to reach this server.
90 TreeServer* GetRoute();
94 std::string GetName();
96 /** Get server description (GECOS)
98 std::string GetDesc();
100 /** Get server version string
102 std::string GetVersion();
104 /** Set time we are next due to ping this server
106 void SetNextPingTime(time_t t);
108 /** Get the time we are next due to ping this server
110 time_t NextPingTime();
112 /** Last ping time in microseconds, used to calculate round trip time
114 unsigned long LastPingMsec;
116 /** Round trip time of last ping
120 /** When we recieved BURST from this server, used to calculate total burst time at ENDBURST.
122 unsigned long StartBurst;
124 /** True if this server is hidden
128 /** True if the server answered their last ping
130 bool AnsweredLastPing();
132 /** Set the server as responding to its last ping
136 /** Get the number of users on this server.
138 unsigned int GetUserCount();
140 /** Increment or decrement the user count by diff.
142 void SetUserCount(int diff);
144 /** Gets the numbers of opers on this server.
146 unsigned int GetOperCount();
148 /** Increment or decrement the oper count by diff.
150 void SetOperCount(int diff);
152 /** Get the TreeSocket pointer for local servers.
153 * For remote servers, this returns NULL.
155 TreeSocket* GetSocket();
157 /** Get the parent server.
158 * For the root node, this returns NULL.
160 TreeServer* GetParent();
162 /** Set the server version string
164 void SetVersion(const std::string &Version);
166 /** Return number of child servers
168 unsigned int ChildCount();
170 /** Return a child server indexed 0..n
172 TreeServer* GetChild(unsigned int n);
174 /** Add a child server
176 void AddChild(TreeServer* Child);
178 /** Delete a child server, return false if it didn't exist.
180 bool DelChild(TreeServer* Child);
182 /** Removes child nodes of this node, and of that node, etc etc.
183 * This is used during netsplits to automatically tidy up the
184 * server tree. It is slow, we don't use it for much else.
190 std::string& GetID();
192 /** Marks a server as having finished bursting and performs appropriate actions.
195 /** Recursive call for child servers */
196 void FinishBurstInternal();