129 lines
4.5 KiB
C
129 lines
4.5 KiB
C
/*
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* uhub - A tiny ADC p2p connection hub
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* Copyright (C) 2007-2014, Jan Vidar Krey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef HAVE_UHUB_USER_MANAGER_H
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#define HAVE_UHUB_USER_MANAGER_H
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struct hub_user_manager
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{
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size_t count; /**<< "Number of all fully connected and logged in users" */
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size_t count_peak; /**<< "Peak number of users" */
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uint64_t shared_size; /**<< "The total number of shared bytes among fully connected users." */
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uint64_t shared_files; /**<< "The total number of shared files among fully connected users." */
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struct sid_pool* sids; /**<< "Maps SIDs to users (constant time)" */
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struct linked_list* list; /**<< "Contains all logged in users" */
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struct rb_tree* nickmap; /**<< "Maps nicknames to users (red black tree)" */
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struct rb_tree* cidmap; /**<< "Maps CIDs to users (red black tree)" */
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};
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/**
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* Initializes the user manager.
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* @return 0 on success, or -1 if error (out of memory).
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*/
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extern struct hub_user_manager* uman_init();
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/**
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* Shuts down the user manager.
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* All users will be disconnected and deleted as part of this.
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*
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* @return 0 on success, or -1 in an error occurred (invalid pointer).
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*/
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extern int uman_shutdown(struct hub_user_manager* users);
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/**
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* Generate statistics for logfiles.
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*/
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extern void uman_update_stats(struct hub_user_manager* users);
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extern void uman_print_stats(struct hub_user_manager* users);
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/**
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* Add a user to the user manager.
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*
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* @param users The usermanager to add the user to
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* @param user The user to be added to the hub.
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*/
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extern int uman_add(struct hub_user_manager* users, struct hub_user* user);
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/**
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* Remove a user from the user manager.
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* This user is connected, and will be moved to the leaving queue, pending
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* all messages in the message queue, and resource cleanup.
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*
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* @return 0 if successfully removed, -1 if error.
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*/
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extern int uman_remove(struct hub_user_manager* users, struct hub_user* user);
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/**
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* Returns and allocates an unused session ID (SID).
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*/
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extern sid_t uman_get_free_sid(struct hub_user_manager* users, struct hub_user* user);
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/**
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* Lookup a user based on the session ID (SID).
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*
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* NOTE: This function will only search connected users, which means
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* that SIDs assigned to users who are not yet completely logged in,
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* or are in the process of being disconnected will result in this
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* function returning NULL even though the sid is not freely available.
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*
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* FIXME: Is that really safe / sensible ?
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* - Makes sense from a message routing point of view.
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*
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* @return a user if found, or NULL if not found
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*/
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extern struct hub_user* uman_get_user_by_sid(struct hub_user_manager* users, sid_t sid);
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/**
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* Lookup a user based on the client ID (CID).
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* @return a user if found, or NULL if not found
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*/
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extern struct hub_user* uman_get_user_by_cid(struct hub_user_manager* users, const char* cid);
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/**
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* Lookup a user based on the nick name.
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* @return a user if found, or NULL if not found
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*/
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extern struct hub_user* uman_get_user_by_nick(struct hub_user_manager* users, const char* nick);
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/**
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* Lookup users based on an ip address range.
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*
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* @param[out] target the list of users matching the address
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* @param range the IP range of users to match
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* @return The number of users matching the addresses, or -1 on error (mask is wrong).
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*/
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extern size_t uman_get_user_by_addr(struct hub_user_manager* users, struct linked_list* target, struct ip_range* range);
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/**
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* Send the user list of connected clients to 'user'.
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* Usually part of the login process.
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*
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* @return 1 if sending the user list succeeded, 0 otherwise.
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*/
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extern int uman_send_user_list(struct hub_info* hub, struct hub_user_manager* users, struct hub_user* user);
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/**
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* Send a quit message to all connected users when 'user' is
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* leaving the hub (for whatever reason).
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*/
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extern void uman_send_quit_message(struct hub_info* hub, struct hub_user_manager* users, struct hub_user* user);
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#endif /* HAVE_UHUB_USER_MANAGER_H */
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