ComContext.hpp

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/* 
 * Confdump-Agent - Dump static and runtime system configuration
 * Copyright (C) 2009-2012  Straton IT, SAS
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 * 
 * 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/>.
 */

#ifndef INCLUDED_CONFDUMP_SYSTEM_WMI_CONTEXT_HPP
#define INCLUDED_CONFDUMP_SYSTEM_WMI_CONTEXT_HPP

#include "boost/noncopyable.hpp"
#include "boost/shared_ptr.hpp"
#include "boost/weak_ptr.hpp"

namespace Confdump
{
namespace System
{
namespace Wmi
{

class ComContextGuard;

class ComContext
{
    class GuardImpl;

public:
    typedef boost::shared_ptr<GuardImpl> Guard;

    Guard getGuard();
    ComContext();
    ~ComContext();

private:
        class GuardImpl : boost::noncopyable
        {
        public:
                ~GuardImpl();

        private:
                friend ComContext::Guard ComContext::getGuard();
                GuardImpl();
                boost::shared_ptr<void> comInitGuard_;
        };

    static boost::weak_ptr<GuardImpl> instance_;
};

}
}
}

#endif /* INCLUDED_CONFDUMP_SYSTEM_WMI_CONTEXT_HPP */