DirectoryIterator_WIN32.h

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//
// DirectoryIterator_WIN32.h
//
// $Id: //poco/1.3/Foundation/include/Poco/DirectoryIterator_WIN32.h#2 $
//
// Library: Foundation
// Package: Filesystem
// Module:  DirectoryIterator
//
// Definition of the DirectoryIteratorImpl class for WIN32.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Foundation_DirectoryIterator_WIN32_INCLUDED
#define Foundation_DirectoryIterator_WIN32_INCLUDED


#include "Poco/Foundation.h"
#include "Poco/UnWindows.h"


namespace Poco {


class Foundation_API DirectoryIteratorImpl
{
public:
        DirectoryIteratorImpl(const std::string& path);
        ~DirectoryIteratorImpl();
        
        void duplicate();
        void release();
        
        const std::string& get() const;
        const std::string& next();
        
private:
        HANDLE          _fh;
        WIN32_FIND_DATA _fd;
        std::string     _current;
        int _rc;
};


//
// inlines
//
const std::string& DirectoryIteratorImpl::get() const
{
        return _current;
}


inline void DirectoryIteratorImpl::duplicate()
{
        ++_rc;
}


inline void DirectoryIteratorImpl::release()
{
        if (--_rc == 0)
                delete this;
}


} // namespace Poco


#endif // Foundation_DirectoryIterator_WIN32_INCLUDED