ost_DirTree (3)

#include <file.h>

Public Member Functions

DirTree (const char *prefix, unsigned maxdepth)

Construct a directory tree walk starting at the specified prefix. DirTree (unsigned maxdepth)

Construct an un-opened directory tree of a known maximum depth. virtual ~DirTree ()

void open (const char *prefix)

Open a directory tree path. void close (void)

Close the directory path. char * getPath (void)

Extract the next full pathname from the directory walk. unsigned perform (const char *prefix)

This is used to step through the filter virtual for an entire subtree, and is used for cases where a derived DirTree class performs it's primary operations through filter rather than externally by calling getPath().

Protected Member Functions

virtual bool filter (const char *file, struct stat *ino)

Virtual method to filter results.

A generic class to walk a hierarchical directory structure.

Author:

David Sugar [email protected] Directory tree walking.

ost::DirTree::DirTree (const char *prefix, unsignedmaxdepth)

Construct a directory tree walk starting at the specified prefix. A maximum subdirectory depth is also specified.

Parameters:

prefix to start walk.

maxdepth subdirectory depth to examine.

ost::DirTree::DirTree (unsignedmaxdepth)

Construct an un-opened directory tree of a known maximum depth.

Parameters:

maxdepth subdirectory subdirectory depth.

virtual ost::DirTree::~DirTree ()\fC [virtual]\fP

void ost::DirTree::close (void)

Close the directory path.

virtual bool ost::DirTree::filter (const char *file, struct stat *ino)\fC [protected]\fP, \fC [virtual]\fP

Virtual method to filter results. Virtual override methods should call baseclass method to assure . and .. names are stripped out.

Returns:

true if current filename is accepted.

Parameters:

file path to examine

ino info of type, date, etc.

char* ost::DirTree::getPath (void)

Extract the next full pathname from the directory walk. When returning directories, a '/' is appended. The returned string is a buffer of MAX_PATH size.

Returns:

path of next subdirectory entry or NULL.

void ost::DirTree::open (const char *prefix)

Open a directory tree path.

Parameters:

prefix directory path to open.

unsigned ost::DirTree::perform (const char *prefix)

This is used to step through the filter virtual for an entire subtree, and is used for cases where a derived DirTree class performs it's primary operations through filter rather than externally by calling getPath().

Returns:

number of files and directories examined.

Parameters:

prefix directory path to examine.

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