/usr/include/Poco/RecursiveDirectoryIteratorImpl.h is in libpoco-dev 1.8.0.1-1ubuntu4.
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// RecursiveDirectoryIteratorImpl.h
//
// Library: Foundation
// Package: Filesystem
// Module: RecursiveDirectoryIterator
//
// Definition of the RecursiveDirectoryIteratorImpl class.
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_RecursiveDirectoryIteratorImpl_INCLUDED
#define Foundation_RecursiveDirectoryIteratorImpl_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/DirectoryIteratorStrategy.h"
#include <stack>
#include <functional>
namespace Poco {
class ChildrenFirstTraverse;
class SiblingsFirstTraverse;
template<class TTraverseStrategy = ChildrenFirstTraverse>
class RecursiveDirectoryIteratorImpl
{
public:
enum
{
D_INFINITE = 0 /// Special value for infinite traverse depth.
};
RecursiveDirectoryIteratorImpl(const std::string& path, UInt16 maxDepth = D_INFINITE)
: _maxDepth(maxDepth), _traverseStrategy(std::ptr_fun(depthFun), _maxDepth), _isFinished(false), _rc(1)
{
_itStack.push(DirectoryIterator(path));
_current = _itStack.top()->path();
}
~RecursiveDirectoryIteratorImpl()
{
}
inline void duplicate()
{
++_rc;
}
inline void release()
{
if (--_rc == 0)
delete this;
}
inline UInt16 depth() const
{
return depthFun(_itStack);
}
inline UInt16 maxDepth() const
{
return _maxDepth;
}
inline const std::string& get() const
{
return _current;
}
const std::string& next()
{
if (_isFinished)
return _current;
_current = _traverseStrategy.next(&_itStack, &_isFinished);
return _current;
}
private:
typedef std::stack<DirectoryIterator> Stack;
static UInt16 depthFun(const Stack& stack)
/// Function which implements the logic of determining
/// recursion depth.
{
return static_cast<Poco::UInt16>(stack.size());
}
UInt16 _maxDepth;
TTraverseStrategy _traverseStrategy;
bool _isFinished;
Stack _itStack;
std::string _current;
int _rc;
};
} // namespace Poco
#endif // Foundation_RecursiveDirectoryIteratorImpl_INCLUDED
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