mirror of https://github.com/Icinga/icinga2.git
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef LOADER_H
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#define LOADER_H
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#include "base/i2-base.hpp"
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#include "base/string.hpp"
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#include <boost/thread/tss.hpp>
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#include <boost/function.hpp>
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#include <queue>
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namespace icinga
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{
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struct DeferredInitializer
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{
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public:
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DeferredInitializer(const boost::function<void (void)>& callback, int priority)
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: m_Callback(callback), m_Priority(priority)
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{ }
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inline bool operator<(const DeferredInitializer& other) const
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{
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return m_Priority < other.m_Priority;
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}
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inline void operator()(void)
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{
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m_Callback();
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}
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private:
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boost::function<void (void)> m_Callback;
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int m_Priority;
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};
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/**
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* Loader helper functions.
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*
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* @ingroup base
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*/
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class I2_BASE_API Loader
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{
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public:
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static void LoadExtensionLibrary(const String& library);
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static void AddDeferredInitializer(const boost::function<void(void)>& callback, int priority = 0);
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static void ExecuteDeferredInitializers(void);
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private:
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Loader(void);
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static boost::thread_specific_ptr<std::priority_queue<DeferredInitializer> >& GetDeferredInitializers(void);
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};
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}
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#endif /* LOADER_H */
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