Core/DBLayer: Properly manage mysql library initialization and shutdown in authserver and worldserver. Prevent multiple calls and make it more elegant.

src/server/shared/Database/DatabaseWorkerPool.h

@@ -58,14 +58,12 @@ class DatabaseWorkerPool
             memset(m_connectionCount, 0, sizeof(m_connectionCount));
             m_connections.resize(IDX_SIZE);
 
-            mysql_library_init(-1, NULL, NULL);
             WPFatal (mysql_thread_safe(), "Used MySQL library isn't thread-safe.");
         }
 
         ~DatabaseWorkerPool()
         {
             sLog->outSQLDriver("~DatabaseWorkerPool for '%s'.", m_connectionInfo.database.c_str());
-            mysql_library_end();
         }
 
         bool Open(const std::string& infoString, uint8 async_threads, uint8 synch_threads)

src/server/shared/Database/MySQLThreading.h

@@ -33,7 +33,7 @@ class MySQL
         static void Thread_Init()
         {
             mysql_thread_init();
-            printf("Core thread with ID ["UI64FMTD"] initializing MySQL thread.\n",
+            sLog->outSQLDriver("Core thread with ID ["UI64FMTD"] initializing MySQL thread.",
                     (uint64)ACE_Based::Thread::currentId());
         }
 
@@ -44,9 +44,19 @@ class MySQL
         static void Thread_End()
         {
             mysql_thread_end();
-            printf("Core thread with ID ["UI64FMTD"] shutting down MySQL thread.\n",
+            sLog->outSQLDriver("Core thread with ID ["UI64FMTD"] shutting down MySQL thread.",
                 (uint64)ACE_Based::Thread::currentId());
         }
+
+        static void Library_Init()
+        {
+            mysql_library_init(-1, NULL, NULL);
+        }
+
+        static void Library_End()
+        {
+            mysql_library_end();
+        }
 };
 
 #endif