src/game/InstanceSaveMgr.h

   1 /*
   2  * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef __InstanceSaveMgr_H
  20 #define __InstanceSaveMgr_H
  21
  22 #include "Platform/Define.h"
  23 #include "Policies/Singleton.h"
  24 #include "ace/Thread_Mutex.h"
  25 #include <list>
  26 #include <map>
  27 #include "Utilities/UnorderedMap.h"
  28 #include "Database/DatabaseEnv.h"
  29 #include "DBCEnums.h"
  30 #include "ObjectDefines.h"
  31
  32 struct InstanceTemplate;
  33 struct MapEntry;
  34 class Player;
  35 class Group;
  36
  37 /*
  38     Holds the information necessary for creating a new map for an existing instance
  39     Is referenced in three cases:
  40     - player-instance binds for solo players (not in group)
  41     - player-instance binds for permanent heroic/raid saves
  42     - group-instance binds (both solo and permanent) cache the player binds for the group leader
  43 */
  44 class InstanceSave
  45 {
  46     friend class InstanceSaveManager;
  47     public:
  48         /* Created either when:
  49            - any new instance is being generated
  50            - the first time a player bound to InstanceId logs in
  51            - when a group bound to the instance is loaded */
  52         InstanceSave(uint16 MapId, uint32 InstanceId, Difficulty difficulty, time_t resetTime, bool canReset);
  53
  54         /* Unloaded when m_playerList and m_groupList become empty
  55            or when the instance is reset */
  56         ~InstanceSave();
  57
  58         uint8 GetPlayerCount() { return m_playerList.size(); }
  59         uint8 GetGroupCount() { return m_groupList.size(); }
  60
  61         /* A map corresponding to the InstanceId/MapId does not always exist.
  62         InstanceSave objects may be created on player logon but the maps are
  63         created and loaded only when a player actually enters the instance. */
  64         uint32 GetInstanceId() { return m_instanceid; }
  65         uint32 GetMapId() { return m_mapid; }
  66
  67         /* Saved when the instance is generated for the first time */
  68         void SaveToDB();
  69         /* When the instance is being reset (permanently deleted) */
  70         void DeleteFromDB();
  71
  72         /* for normal instances this corresponds to max(creature respawn time) + X hours
  73            for raid/heroic instances this caches the global respawn time for the map */
  74         time_t GetResetTime() { return m_resetTime; }
  75         void SetResetTime(time_t resetTime) { m_resetTime = resetTime; }
  76         time_t GetResetTimeForDB();
  77
  78         InstanceTemplate const* GetTemplate();
  79         MapEntry const* GetMapEntry();
  80
  81         /* online players bound to the instance (perm/solo)
  82            does not include the members of the group unless they have permanent saves */
  83         void AddPlayer(Player *player) { m_playerList.push_back(player); }
  84         bool RemovePlayer(Player *player) { m_playerList.remove(player); return UnloadIfEmpty(); }
  85         /* all groups bound to the instance */
  86         void AddGroup(Group *group) { m_groupList.push_back(group); }
  87         bool RemoveGroup(Group *group) { m_groupList.remove(group); return UnloadIfEmpty(); }
  88
  89         /* instances cannot be reset (except at the global reset time)
  90            if there are players permanently bound to it
  91            this is cached for the case when those players are offline */
  92         bool CanReset() { return m_canReset; }
  93         void SetCanReset(bool canReset) { m_canReset = canReset; }
  94
  95         /* currently it is possible to omit this information from this structure
  96            but that would depend on a lot of things that can easily change in future */
  97         Difficulty GetDifficulty() { return m_difficulty; }
  98
  99         typedef std::list<Player*> PlayerListType;
 100         typedef std::list<Group*> GroupListType;
 101     private:
 102         bool UnloadIfEmpty();
 103         /* the only reason the instSave-object links are kept is because
 104            the object-instSave links need to be broken at reset time
 105            TODO: maybe it's enough to just store the number of players/groups */
 106         PlayerListType m_playerList;
 107         GroupListType m_groupList;
 108         time_t m_resetTime;
 109         uint32 m_instanceid;
 110         uint32 m_mapid;
 111         Difficulty m_difficulty;
 112         bool m_canReset;
 113 };
 114
 115 class MANGOS_DLL_DECL InstanceSaveManager : public MaNGOS::Singleton<InstanceSaveManager, MaNGOS::ClassLevelLockable<InstanceSaveManager, ACE_Thread_Mutex> >
 116 {
 117     friend class InstanceSave;
 118     public:
 119         InstanceSaveManager();
 120         ~InstanceSaveManager();
 121
 122         typedef UNORDERED_MAP<uint32 /*InstanceId*/, InstanceSave*> InstanceSaveHashMap;
 123         typedef UNORDERED_MAP<uint32 /*mapId*/, InstanceSaveHashMap> InstanceSaveMapMap;
 124
 125         /* resetTime is a global propery of each (raid/heroic) map
 126            all instances of that map reset at the same time */
 127         struct InstResetEvent
 128         {
 129             uint8 type;
 130             Difficulty difficulty:8;
 131             uint16 mapid;
 132             uint16 instanceId;
 133
 134             InstResetEvent() : type(0), difficulty(DUNGEON_DIFFICULTY_NORMAL), mapid(0), instanceId(0) {}
 135             InstResetEvent(uint8 t, uint32 _mapid, Difficulty d, uint16 _instanceid)
 136                 : type(t), difficulty(d), mapid(_mapid), instanceId(_instanceid) {}
 137             bool operator == (const InstResetEvent& e) { return e.instanceId == instanceId; }
 138         };
 139         typedef std::multimap<time_t /*resetTime*/, InstResetEvent> ResetTimeQueue;
 140         typedef UNORDERED_MAP<uint32 /*PAIR32(map,difficulty)*/,time_t /*resetTime*/> ResetTimeByMapDifficultyMap;
 141
 142         void CleanupInstances();
 143         void PackInstances();
 144
 145         void LoadResetTimes();
 146         time_t GetResetTimeFor(uint32 mapid, Difficulty d) const
 147         {
 148             ResetTimeByMapDifficultyMap::const_iterator itr  = m_resetTimeByMapDifficulty.find(MAKE_PAIR32(mapid,d));
 149             return itr != m_resetTimeByMapDifficulty.end() ? itr->second : 0;
 150         }
 151         void SetResetTimeFor(uint32 mapid, Difficulty d, time_t t)
 152         {
 153             m_resetTimeByMapDifficulty[MAKE_PAIR32(mapid,d)] = t;
 154         }
 155         void ScheduleReset(bool add, time_t time, InstResetEvent event);
 156
 157         void Update();
 158
 159         InstanceSave* AddInstanceSave(uint32 mapId, uint32 instanceId, Difficulty difficulty, time_t resetTime, bool canReset, bool load = false);
 160         void RemoveInstanceSave(uint32 InstanceId);
 161         static void DeleteInstanceFromDB(uint32 instanceid);
 162
 163         InstanceSave *GetInstanceSave(uint32 InstanceId);
 164
 165         /* statistics */
 166         uint32 GetNumInstanceSaves() { return m_instanceSaveById.size(); }
 167         uint32 GetNumBoundPlayersTotal();
 168         uint32 GetNumBoundGroupsTotal();
 169
 170     private:
 171         void _ResetOrWarnAll(uint32 mapid, Difficulty difficulty, bool warn, uint32 timeleft);
 172         void _ResetInstance(uint32 mapid, uint32 instanceId);
 173         void _ResetSave(InstanceSaveHashMap::iterator &itr);
 174         void _DelHelper(DatabaseType &db, const char *fields, const char *table, const char *queryTail,...);
 175         // used during global instance resets
 176         bool lock_instLists;
 177         // fast lookup by instance id
 178         InstanceSaveHashMap m_instanceSaveById;
 179         // fast lookup for reset times (always use existed functions for access/set)
 180         ResetTimeByMapDifficultyMap m_resetTimeByMapDifficulty;
 181         ResetTimeQueue m_resetTimeQueue;
 182 };
 183
 184 #define sInstanceSaveMgr MaNGOS::Singleton<InstanceSaveManager>::Instance()
 185 #endif