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inl/QxSingleton/QxSingleton.inl

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+/****************************************************************************
+**
+** https://www.qxorm.com/
+** Copyright (C) 2013 XDL Team (ic-east.com)
+**
+** This file is part of the QxOrm library
+**
+** This software is provided 'as-is', without any express or implied
+** warranty. In no event will the authors be held liable for any
+** damages arising from the use of this software
+**
+** Commercial Usage
+** Licensees holding valid commercial QxOrm licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and XDL Team
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file 'license.gpl3.txt' included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met : http://www.gnu.org/copyleft/gpl.html
+**
+** If you are unsure which license is appropriate for your use, or
+** if you have questions regarding the use of this file, please contact :
+** ic-east.com
+**
+****************************************************************************/
+
+namespace qx
+{
+
+   template <class T>
+   T *QxSingleton<T>::m_pSingleton = NULL;
+   template <class T>
+   QMutex QxSingleton<T>::m_oMutexSingleton;
+
+   template <class T>
+   T *QxSingleton<T>::getSingleton()
+   {
+      if (m_pSingleton)
+         return m_pSingleton;
+
+      IxSingleton::initQxSingletonX();
+      QMutexLocker locker(QCoreApplication::instance() ? (&m_oMutexSingleton) : NULL);
+      if (!m_pSingleton)
+      {
+         m_pSingleton = new T();
+      }
+
+      return m_pSingleton;
+   }
+
+   template <class T>
+   void QxSingleton<T>::deleteSingleton()
+   {
+      QMutexLocker locker(QCoreApplication::instance() ? (&m_oMutexSingleton) : NULL);
+      if (!m_pSingleton)
+      {
+         return;
+      }
+
+      delete m_pSingleton;
+      m_pSingleton = NULL;
+   }
+
+} // namespace qx