Manipulate and get information about regular files. More...

#include <RegularFile.h>

Inheritance diagram for casacore::RegularFile:

Public Member Functions
	RegularFile ()
	Default constructor sets path to. More...

	RegularFile (const Path &path)
	Create a regular file object for a file with the given path name. More...

	RegularFile (const String &string)

	RegularFile (const File &file)

	RegularFile (const RegularFile &regularFile)
	Copy constructor (copy semantics). More...

	~RegularFile ()

RegularFile &	operator= (const RegularFile &regularFile)
	Assignment (copy semantics). More...

void	create (Bool overwrite=True)
	Create the regular file. More...

void	remove ()
	Remove the file. More...

void	copy (const Path &target, Bool overwrite=True, Bool setUserWritePermission=True) const
	Copy the file to the target path using the system command cp. More...

void	copy (const String &target, Bool overwrite=True, Bool setUserWritePermission=True) const

void	move (const Path &target, Bool overwrite=True)
	Move the file to the target path using the system command mv. More...

void	move (const String &target, Bool overwrite=True)

virtual Int64	size () const
	Return the size of the file. More...

Public Member Functions inherited from casacore::File
	File ()
	Construct a File object whose Path is set to the current working directory. More...

	File (const Path &path)
	Construct a File object whose Path is set to the given Path. More...

	File (const String &path)

	File (const File &that)
	Copy constructor (copy semantics). More...

virtual	~File ()

File &	operator= (const File &that)
	Assignment (copy semantics). More...

const Path &	path () const
	Returns the pathname of the file. More...

Bool	isRegular (Bool followSymLink=True) const
	Check if the file is a regular file. More...

Bool	isDirectory (Bool followSymLink=True) const
	Check if the file is a directory. More...

Bool	isSymLink () const
	Check if the file is a symbolic link. More...

Bool	isPipe () const
	Check if the file is a pipe. More...

Bool	isCharacterSpecial () const
	Check if the file is a character special file. More...

Bool	isBlockSpecial () const
	Check if the file is a block special file. More...

Bool	isSocket () const
	Check if the file is a socket. More...

Bool	exists () const
	Check if the file exists. More...

Bool	isReadable () const
	Check if the file is readable. More...

Bool	isWritable () const
	Check if the file is writable. More...

Bool	isExecutable () const
	Check if the file is executable. More...

Bool	canCreate () const
	Check if a file can be created. More...

long	userID () const
	Return the userID of the file. More...

long	groupID () const
	Return the groupID of the file. More...

uInt	readPermissions () const
	Return the permissions as a decimal value. More...

void	setPermissions (uInt permissions)
	Set permission with perm. More...

void	touch (uInt time)
	Update access time and modification time of a file. More...

void	touch ()
	Update access time and modification time of a file. More...

uInt	accessTime () const
	Time related fucnctions: Return the time when the file was last accessed in seconds since 00:00:00 GMT Jan 1, 1970. More...

String	accessTimeString () const
	Return the time when the file was last accessed as a 26-characters String of the form: Thu Feb 3 13:40:11 1994. More...

uInt	modifyTime () const
	Return the time when the file was last modified in seconds since 00:00:00 GMT Jan 1, 1970. More...

String	modifyTimeString () const
	Return the time when the file was last modified as a 26-characters String of the form: Thu Feb 3 13:40:11 1994. More...

uInt	statusChangeTime () const
	Return the time when the file status was last changed in seconds since 00:00:00 GMT Jan 1, 1970. More...

String	statusChangeTimeString () const
	return the time when the file status was last changed as a 26-characters String of the form: Thu Feb 3 13:40:11 1994 More...

FileWriteStatus	getWriteStatus () const
	get write status of the file. More...

String	getFSType () const
	Return the filesystem type. More...

Static Public Member Functions
static void	manualCopy (const String &source, const String &target)
	Copy the file manually in case the cp command cannot be used. More...

Static Public Member Functions inherited from casacore::File
static Path	newUniqueName (const String &directory, const String &prefix)
	Create a new unique path name in the specified directory, with the specified prefix and random trailing characters: More...

static Path	newUniqueName (const String &directory)
	Create a new unique filename without a prefix. More...

Private Member Functions
void	checkPath ()
	Check if the path of the file is valid. More...

Private Attributes
File	itsFile
	This variable is used when a symbolic link points to the file. More...

Additional Inherited Members
Public Types inherited from casacore::File
enum	FileWriteStatus { OVERWRITABLE, NOT_OVERWRITABLE, CREATABLE, NOT_CREATABLE }

Protected Member Functions inherited from casacore::File
void	removeSymLinks ()
	This function is used by RegularFile and Directory to remove all the links which, when followed, ultimately resolve to a Directory or a RegularFile. More...

void	checkTarget (Path &targetName, Bool overwrite, Bool forDirectory=False) const
	Check if the new path for a copy or move is valid. More...

Detailed Description

Manipulate and get information about regular files.

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25

Intended use:

Public interface

Prerequisite

Basic knowledge of the UNIX file system
File

Etymology

The class RegularFile provides functions for manipulating and getting information about regular files. Regular file are files which hold data.

Synopsis

This class provides functions to manipulate and to get information about regular files. The functions for getting information (like ownership, dates) about regular files are inherited from the File class.
The class RegularFile itself provides functions to rename, remove, copy, and move regular files. The file name can be a symbolic link resolving (eventually) to a regular file.

Example

// Create the object rFile
RegularFile rFile ("isFile");
// Create file; if the file exists it will be overwritten
rFile.create (True);
rFile.copy (newPath);
cout << rFile.size() << endl;     // Get the size of the file
cout << rFile.path() << endl;     // Show the relative pathname
rFile.remove();                   // remove the file

Motivation

Provide functions for manipulating and getting information about regular files.

Definition at line 91 of file RegularFile.h.

Constructor & Destructor Documentation

casacore::RegularFile::RegularFile ( )

Default constructor sets path to.

(working directory).

casacore::RegularFile::RegularFile ( const Path & path )

Create a regular file object for a file with the given path name.

An exception is thrown if the file is illegal, i.e. if it does not exist as a regular file or symbolic link or if cannot be created. Note that the file is not created if it does not exist yet. This can be done using the function create.
When the given path name is a symbolic link, the symbolic link is resolved (recursively) and the resulting file name is used instead.

casacore::RegularFile::RegularFile ( const String & string )

casacore::RegularFile::RegularFile ( const File & file )

casacore::RegularFile::RegularFile ( const RegularFile & regularFile )

Copy constructor (copy semantics).

casacore::RegularFile::~RegularFile ( )

Member Function Documentation

void casacore::RegularFile::checkPath ( )

private

Check if the path of the file is valid.

Also resolve possible symlinks.

void casacore::RegularFile::copy	(	const Path &	target,
		Bool	overwrite = `True`,
		Bool	setUserWritePermission = `True`
	)		const

Copy the file to the target path using the system command cp.

If the file is a symbolic link, the regular file pointed to will be copied. The target path can be a directory or a file (as in cp). An exception is thrown if:
- the target directory is not writable
- or the target file already exists and overwrite==False
- or the target file already exists and is not writable
Caution: When a readonly file is copied, the resulting file is also readonly; Therefore chmod is used to set user write permission after the copy; The flag setUserWritePermission can be set to False when that should not be done;

Referenced by copy().

void casacore::RegularFile::copy	(	const String &	target,
		Bool	overwrite = `True`,
		Bool	setUserWritePermission = `True`
	)		const

inline

Definition at line 190 of file RegularFile.h.

References copy().

void casacore::RegularFile::create ( Bool overwrite = True )

Create the regular file.

If the file exists and is not a regular file, an exception is thrown. Otherwise if overwrite is true the regular file will be overwritten. If overwrite is false then nothing will be done. If the file does not exist, it is created.

static void casacore::RegularFile::manualCopy	(	const String &	source,
		const String &	target
	)

static

Copy the file manually in case the cp command cannot be used.

(like on the Cray XT3).

void casacore::RegularFile::move	(	const Path &	target,
		Bool	overwrite = `True`
	)

Move the file to the target path using the system command mv.

If the file is a symbolic link, the regular file pointed to will be moved. The target path can be a directory or a file (as in mv). An exception is thrown if:
- the target directory is not writable
- or the target file already exists and overwrite==False
- or the target file already exists and is not writable
Tip: The system command mv is used instead of the library function rename to be able to move across file systems;

Referenced by move().

void casacore::RegularFile::move	(	const String &	target,
		Bool	overwrite = `True`
	)

inline

Definition at line 195 of file RegularFile.h.

References move().

RegularFile& casacore::RegularFile::operator= ( const RegularFile & regularFile )

Assignment (copy semantics).

void casacore::RegularFile::remove ( )

Remove the file.

If it does not exist, an exception will be thrown. If a symbolic link is given, the link chain pointing to the file will also be removed.

Referenced by casa::SynthesisNormalizerMixin< T >::setup_normalizer().

virtual Int64 casacore::RegularFile::size ( ) const

virtual

Return the size of the file.

If the file does not exist, an exception will be thrown.

Reimplemented from casacore::File.

Member Data Documentation

File casacore::RegularFile::itsFile

private

This variable is used when a symbolic link points to the file.

Definition at line 186 of file RegularFile.h.

The documentation for this class was generated from the following file:

casa/casacore/casa/OS/RegularFile.h

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members