Core/Database: Move singleton instances into compilation units

* Fixes issues when building shared libraries
  (prevents gcc and clang from providing several instance)
* Also instantiate the database worker pools in DatabaseEnv.cpp now.

(cherry picked from commit a8fe7f6eb7)

src/server/authserver/CMakeLists.txt

@@ -58,6 +58,7 @@ include_directories(
   ${CMAKE_SOURCE_DIR}/src/server/database
   ${CMAKE_SOURCE_DIR}/src/server/database/Database
   ${CMAKE_SOURCE_DIR}/src/server/database/Logging
+  ${CMAKE_SOURCE_DIR}/src/server/database/Updater
   ${CMAKE_SOURCE_DIR}/src/server/shared
   ${CMAKE_SOURCE_DIR}/src/server/shared/Networking
   ${CMAKE_SOURCE_DIR}/src/server/shared/Packets

src/server/authserver/Main.cpp

@@ -76,7 +76,6 @@ boost::asio::deadline_timer* _dbPingTimer;
 uint32 _dbPingInterval;
 boost::asio::deadline_timer* _banExpiryCheckTimer;
 uint32 _banExpiryCheckInterval;
-LoginDatabaseWorkerPool LoginDatabase;
 
 int main(int argc, char** argv)
 {

src/server/database/Database/DatabaseEnv.cpp

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "DatabaseEnv.h"
+
+WorldDatabaseWorkerPool WorldDatabase;
+CharacterDatabaseWorkerPool CharacterDatabase;
+LoginDatabaseWorkerPool LoginDatabase;

src/server/database/Database/DatabaseEnv.h

@@ -38,9 +38,11 @@
 #include "Implementation/CharacterDatabase.h"
 #include "Implementation/WorldDatabase.h"
 
+/// Accessor to the world database
 extern WorldDatabaseWorkerPool WorldDatabase;
+/// Accessor to the character database
 extern CharacterDatabaseWorkerPool CharacterDatabase;
+/// Accessor to the realm/login database
 extern LoginDatabaseWorkerPool LoginDatabase;
 
 #endif
-

src/server/database/Database/DatabaseLoader.h

@@ -19,7 +19,7 @@
 #define DatabaseLoader_h__
 
 #include "DatabaseWorkerPool.h"
-#include "DatabaseEnv.h"
+#include "DBUpdater.h"
 
 #include <functional>
 #include <stack>

src/server/worldserver/CMakeLists.txt

@@ -63,6 +63,7 @@ include_directories(
   ${CMAKE_SOURCE_DIR}/src/server/database/
   ${CMAKE_SOURCE_DIR}/src/server/database/Database
   ${CMAKE_SOURCE_DIR}/src/server/database/Logging
+  ${CMAKE_SOURCE_DIR}/src/server/database/Updater
   ${CMAKE_SOURCE_DIR}/src/server/game
   ${CMAKE_SOURCE_DIR}/src/server/game/Accounts
   ${CMAKE_SOURCE_DIR}/src/server/game/Addons

src/server/worldserver/Main.cpp

@@ -78,9 +78,6 @@ uint32 _worldLoopCounter(0);
 uint32 _lastChangeMsTime(0);
 uint32 _maxCoreStuckTimeInMs(0);
 
-WorldDatabaseWorkerPool WorldDatabase;                      ///< Accessor to the world database
-CharacterDatabaseWorkerPool CharacterDatabase;              ///< Accessor to the character database
-LoginDatabaseWorkerPool LoginDatabase;                      ///< Accessor to the realm/login database
 Realm realm;
 
 void SignalHandler(const boost::system::error_code& error, int signalNumber);