Core/Build: Merge common library and move database out of shared

src/server/database/Database/DatabaseWorker.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2008-2015 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"
+#include "DatabaseWorker.h"
+#include "SQLOperation.h"
+#include "MySQLConnection.h"
+#include "MySQLThreading.h"
+#include "ProducerConsumerQueue.h"
+
+DatabaseWorker::DatabaseWorker(ProducerConsumerQueue<SQLOperation*>* newQueue, MySQLConnection* connection)
+{
+    _connection = connection;
+    _queue = newQueue;
+    _cancelationToken = false;
+    _workerThread = std::thread(&DatabaseWorker::WorkerThread, this);
+}
+
+DatabaseWorker::~DatabaseWorker()
+{
+    _cancelationToken = true;
+
+    _queue->Cancel();
+
+    _workerThread.join();
+}
+
+void DatabaseWorker::WorkerThread()
+{
+    if (!_queue)
+        return;
+
+    for (;;)
+    {
+        SQLOperation* operation = nullptr;
+
+        _queue->WaitAndPop(operation);
+
+        if (_cancelationToken || !operation)
+            return;
+
+        operation->SetConnection(_connection);
+        operation->call();
+
+        delete operation;
+    }
+}