Core/Misc: Add configuration option for setting the update interval of the Who list cache (#30750)

(cherry picked from commit 0bd56da09b1f0ae34605a1a6fdd14ca26cd42d4c)

src/server/game/World/World.cpp

@@ -853,6 +853,7 @@ void World::LoadConfigSettings(bool reload)
         { .Name = "Respawn.DynamicMinimumGameObject"sv, .DefaultValue = 10, .Index = CONFIG_RESPAWN_DYNAMICMINIMUM_GAMEOBJECT },
         { .Name = "Respawn.WarningFrequency"sv, .DefaultValue = 1800, .Index = CONFIG_RESPAWN_GUIDWARNING_FREQUENCY },
         { .Name = "MaxWhoListReturns"sv, .DefaultValue = 49, .Index = CONFIG_MAX_WHO },
+        { .Name = "WhoList.Update.Interval"sv, .DefaultValue = 5, .Index = CONFIG_WHO_LIST_UPDATE_INTERVAL, .Min = 1 },
         { .Name = "HonorPointsAfterDuel"sv, .DefaultValue = 0, .Index = CONFIG_HONOR_AFTER_DUEL },
         { .Name = "PvPToken.MapAllowType"sv, .DefaultValue = 4, .Index = CONFIG_PVP_TOKEN_MAP_TYPE, .Min = 1, .Max = 4 },
         { .Name = "PvPToken.ItemID"sv, .DefaultValue = 29434, .Index = CONFIG_PVP_TOKEN_ID },
@@ -1222,6 +1223,8 @@ void World::LoadConfigSettings(bool reload)
         m_timers[WUPDATE_CLEANDB].Reset();
         m_timers[WUPDATE_AUTOBROADCAST].SetInterval(m_int_configs[CONFIG_AUTOBROADCAST_INTERVAL]);
         m_timers[WUPDATE_AUTOBROADCAST].Reset();
+        m_timers[WUPDATE_WHO_LIST].SetInterval(m_int_configs[CONFIG_WHO_LIST_UPDATE_INTERVAL] * IN_MILLISECONDS);
+        m_timers[WUPDATE_WHO_LIST].Reset();
         WorldStateMgr::SetValue(WS_CURRENT_PVP_SEASON_ID, getBoolConfig(CONFIG_ARENA_SEASON_IN_PROGRESS) ? getIntConfig(CONFIG_ARENA_SEASON_ID) : 0, false, nullptr);
         WorldStateMgr::SetValue(WS_PREVIOUS_PVP_SEASON_ID, getIntConfig(CONFIG_ARENA_SEASON_ID) - getBoolConfig(CONFIG_ARENA_SEASON_IN_PROGRESS), false, nullptr);
 
@@ -1976,7 +1979,7 @@ bool World::SetInitialWorldSettings()
 
     m_timers[WUPDATE_CHECK_FILECHANGES].SetInterval(500);
 
-    m_timers[WUPDATE_WHO_LIST].SetInterval(5 * IN_MILLISECONDS); // update who list cache every 5 seconds
+    m_timers[WUPDATE_WHO_LIST].SetInterval(getIntConfig(CONFIG_WHO_LIST_UPDATE_INTERVAL) * IN_MILLISECONDS); // update who list cache every 5 seconds
 
     m_timers[WUPDATE_CHANNEL_SAVE].SetInterval(getIntConfig(CONFIG_PRESERVE_CUSTOM_CHANNEL_INTERVAL) * MINUTE * IN_MILLISECONDS);
 

src/server/game/World/World.h

@@ -346,6 +346,7 @@ enum WorldIntConfigs : uint32
     CONFIG_ARENA_START_PERSONAL_RATING,
     CONFIG_ARENA_START_MATCHMAKER_RATING,
     CONFIG_MAX_WHO,
+    CONFIG_WHO_LIST_UPDATE_INTERVAL,
     CONFIG_HONOR_AFTER_DUEL,
     CONFIG_PVP_TOKEN_MAP_TYPE,
     CONFIG_PVP_TOKEN_ID,

src/server/worldserver/worldserver.conf.dist

@@ -764,6 +764,13 @@ ArenaTeam.CharterCost.5v5 = 2000000
 
 MaxWhoListReturns = 50
 
+#
+#    WhoList.Update.Interval
+#        Description: Interval in seconds for Who List to get updated
+#        Default:     5 (seconds)
+
+WhoList.Update.Interval = 5
+
 #
 #    CharacterCreating.Disabled
 #        Description: Disable character creation for players based on faction.