QFSFileEngine Class Reference

\inmodule QtCore More...

#include <qfsfileengine_p.h>

Inheritance diagram for QFSFileEngine:

Collaboration diagram for QFSFileEngine:

Public Member Functions
	QFSFileEngine ()
	Constructs a QFSFileEngine.
	QFSFileEngine (const QString &file)
	Constructs a QFSFileEngine for the file name file.
	~QFSFileEngine ()
	Destructs the QFSFileEngine.
bool	open (QIODevice::OpenMode openMode, std::optional< QFile::Permissions > permissions) override
	\reimp
bool	open (QIODevice::OpenMode flags, FILE *fh)
	Opens the file handle fh in openMode mode.
bool	close () override
	\reimp
bool	flush () override
	\reimp
bool	syncToDisk () override
	\reimp
qint64	size () const override
	\reimp
qint64	pos () const override
	\reimp
bool	seek (qint64) override
	\reimp
bool	isSequential () const override
	\reimp
bool	remove () override
	\reimp
bool	copy (const QString &newName) override
	For Windows or Apple platforms, copy the file to file copyName.
bool	rename (const QString &newName) override
	\reimp
bool	renameOverwrite (const QString &newName) override
	\reimp
bool	link (const QString &newName) override
	Creates a link from the file currently specified by fileName() to newName.
bool	mkdir (const QString &dirName, bool createParentDirectories, std::optional< QFile::Permissions > permissions) const override
	\reimp
bool	rmdir (const QString &dirName, bool recurseParentDirectories) const override
	\reimp
bool	setSize (qint64 size) override
	\reimp
bool	caseSensitive () const override
	Returns false for Windows, true for Unix.
bool	isRelativePath () const override
	\reimp
QStringList	entryList (QDir::Filters filters, const QStringList &filterNames) const override
FileFlags	fileFlags (FileFlags type) const override
	\reimp
bool	setPermissions (uint perms) override
	\reimp
QByteArray	id () const override
QString	fileName (FileName file) const override
	\reimp
uint	ownerId (FileOwner) const override
	In Unix, if stat() is successful, the uid is returned if own is the owner.
QString	owner (FileOwner) const override
	\reimp
bool	setFileTime (const QDateTime &newDate, FileTime time) override
	\reimp
QDateTime	fileTime (FileTime time) const override
	\reimp
void	setFileName (const QString &file) override
	\reimp
int	handle () const override
	\reimp
Iterator *	beginEntryList (QDir::Filters filters, const QStringList &filterNames) override
Iterator *	endEntryList () override
qint64	read (char *data, qint64 maxlen) override
	\reimp
qint64	readLine (char *data, qint64 maxlen) override
	\reimp
qint64	write (const char *data, qint64 len) override
	\reimp
bool	cloneTo (QAbstractFileEngine *target) override
	\reimp
virtual bool	isUnnamedFile () const
bool	extension (Extension extension, const ExtensionOption *option=nullptr, ExtensionReturn *output=nullptr) override
	\reimp
bool	supportsExtension (Extension extension) const override
	\reimp
bool	open (QIODevice::OpenMode flags, int fd)
	Opens the file descriptor fd in openMode mode.
bool	open (QIODevice::OpenMode flags, int fd, QFile::FileHandleFlags handleFlags)
bool	open (QIODevice::OpenMode flags, FILE *fh, QFile::FileHandleFlags handleFlags)
Public Member Functions inherited from QAbstractFileEngine
virtual	~QAbstractFileEngine ()
	Destroys the QAbstractFileEngine.
virtual bool	open (QIODevice::OpenMode openMode, std::optional< QFile::Permissions > permissions=std::nullopt)
	Opens the file in the specified mode.
virtual bool	close ()
	Closes the file, returning true if successful; otherwise returns false.
virtual bool	flush ()
	Flushes the open file, returning true if successful; otherwise returns false.
virtual bool	syncToDisk ()
virtual qint64	size () const
	Returns the size of the file.
virtual qint64	pos () const
	Returns the current file position.
virtual bool	seek (qint64 pos)
	Sets the file position to the given offset.
virtual bool	isSequential () const
	Returns true if the file is a sequential access device; returns false if the file is a direct access device.
virtual bool	remove ()
	Requests that the file is deleted from the file system.
virtual bool	copy (const QString &newName)
	Copies the contents of this file to a file with the name newName.
virtual bool	rename (const QString &newName)
	Requests that the file be renamed to newName in the file system.
virtual bool	renameOverwrite (const QString &newName)
virtual bool	link (const QString &newName)
	Creates a link from the file currently specified by fileName() to newName.
virtual bool	mkdir (const QString &dirName, bool createParentDirectories, std::optional< QFile::Permissions > permissions=std::nullopt) const
	Requests that the directory dirName be created with the specified permissions.
virtual bool	rmdir (const QString &dirName, bool recurseParentDirectories) const
	Requests that the directory dirName is deleted from the file system.
virtual bool	setSize (qint64 size)
	Requests that the file be set to size size.
virtual bool	caseSensitive () const
	Should return true if the underlying file system is case-sensitive; otherwise return false.
virtual bool	isRelativePath () const
	Return true if the file referred to by this file engine has a relative path; otherwise return false.
virtual QStringList	entryList (QDir::Filters filters, const QStringList &filterNames) const
	Requests that a list of all the files matching the filters list based on the filterNames in the file engine's directory are returned.
virtual FileFlags	fileFlags (FileFlags type=FileInfoAll) const
	This function should return the set of OR'd flags that are true for the file engine's file, and that are in the type's OR'd members.
virtual bool	setPermissions (uint perms)
	Requests that the file's permissions be set to perms.
virtual QByteArray	id () const
virtual QString	fileName (FileName file=DefaultName) const
	Return the file engine's current file name in the format specified by file.
virtual uint	ownerId (FileOwner) const
	If owner is OwnerUser return the ID of the user who owns the file.
virtual QString	owner (FileOwner) const
	If owner is OwnerUser return the name of the user who owns the file.
virtual bool	setFileTime (const QDateTime &newDate, FileTime time)
virtual QDateTime	fileTime (FileTime time) const
	If time is BirthTime, return when the file was born (created).
virtual void	setFileName (const QString &file)
	Sets the file engine's file name to file.
virtual int	handle () const
	Returns the native file handle for this file engine.
virtual bool	cloneTo (QAbstractFileEngine *target)
bool	atEnd () const
uchar *	map (qint64 offset, qint64 size, QFile::MemoryMapFlags flags)
bool	unmap (uchar *ptr)
virtual Iterator *	beginEntryList (QDir::Filters filters, const QStringList &filterNames)
	Returns an instance of a QAbstractFileEngineIterator using filters for entry filtering and filterNames for name filtering.
virtual Iterator *	endEntryList ()
virtual qint64	read (char *data, qint64 maxlen)
	Reads a number of characters from the file into data.
virtual qint64	readLine (char *data, qint64 maxlen)
	This function reads one line, terminated by a '\n' character, from the file info data.
virtual qint64	write (const char *data, qint64 len)
	Writes len bytes from data to the file.
QFile::FileError	error () const
	Returns the QFile::FileError that resulted from the last failed operation.
QString	errorString () const
	Returns the human-readable message appropriate to the current error reported by error().
virtual bool	extension (Extension extension, const ExtensionOption *option=nullptr, ExtensionReturn *output=nullptr)
virtual bool	supportsExtension (Extension extension) const

Static Public Member Functions
static bool	setCurrentPath (const QString &path)
	Sets the current path (e.g., for QDir), to path.
static QString	currentPath (const QString &path=QString())
	For Unix, returns the current working directory for the file engine.
static QString	homePath ()
	Returns the home path of the current user.
static QString	rootPath ()
	Returns the root path.
static QString	tempPath ()
	Returns the temporary path (i.e., a path in which it is safe to store temporary files).
static QFileInfoList	drives ()
	For Windows, returns the list of drives in the file system as a list of QFileInfo objects.
Static Public Member Functions inherited from QAbstractFileEngine
static QAbstractFileEngine *	create (const QString &fileName)
	Creates and returns a QAbstractFileEngine suitable for processing fileName.

Protected Member Functions
	QFSFileEngine (QFSFileEnginePrivate &dd)
Protected Member Functions inherited from QAbstractFileEngine
void	setError (QFile::FileError error, const QString &str)
	Sets the error type to error, and the error string to errorString.
	QAbstractFileEngine ()
	Constructs a new QAbstractFileEngine that does not refer to any file or directory.
	QAbstractFileEngine (QAbstractFileEnginePrivate &)

Additional Inherited Members
Public Types inherited from QAbstractFileEngine
enum	FileFlag {   ReadOwnerPerm = 0x4000 , WriteOwnerPerm = 0x2000 , ExeOwnerPerm = 0x1000 , ReadUserPerm = 0x0400 ,   WriteUserPerm = 0x0200 , ExeUserPerm = 0x0100 , ReadGroupPerm = 0x0040 , WriteGroupPerm = 0x0020 ,   ExeGroupPerm = 0x0010 , ReadOtherPerm = 0x0004 , WriteOtherPerm = 0x0002 , ExeOtherPerm = 0x0001 ,   LinkType = 0x10000 , FileType = 0x20000 , DirectoryType = 0x40000 , BundleType = 0x80000 ,   HiddenFlag = 0x0100000 , LocalDiskFlag = 0x0200000 , ExistsFlag = 0x0400000 , RootFlag = 0x0800000 ,   Refresh = 0x1000000 , PermsMask = 0x0000FFFF , TypesMask = 0x000F0000 , FlagsMask = 0x0FF00000 ,   FileInfoAll = FlagsMask | PermsMask | TypesMask }
	The permissions and types of a file, suitable for OR'ing together. More...
enum	FileName {   DefaultName , BaseName , PathName , AbsoluteName ,   AbsolutePathName , AbsoluteLinkTarget , CanonicalName , CanonicalPathName ,   BundleName , JunctionName , RawLinkPath , NFileNames }
	These values are used to request a file name in a particular format. More...
enum	FileOwner { OwnerUser , OwnerGroup }
	\value OwnerUser The user who owns the file. More...
enum	FileTime { AccessTime , BirthTime , MetadataChangeTime , ModificationTime }
	These are used by the fileTime() function. More...
enum	Extension { AtEndExtension , FastReadLineExtension , MapExtension , UnMapExtension }
typedef QAbstractFileEngineIterator	Iterator
Protected Attributes inherited from QAbstractFileEngine
QScopedPointer< QAbstractFileEnginePrivate >	d_ptr

Detailed Description

\inmodule QtCore

The QFSFileEngine class implements Qt's default file engine.

Since

4.1

This class is part of the file engine framework in Qt. If you only want to access files or directories, use QFile, QFileInfo or QDir instead.

QFSFileEngine is the default file engine for accessing regular files. It is provided for convenience; by subclassing this class, you can alter its behavior slightly, without having to write a complete QAbstractFileEngine subclass. To install your custom file engine, you must also subclass QAbstractFileEngineHandler and create an instance of your handler.

It can also be useful to create a QFSFileEngine object directly if you need to use the local file system inside QAbstractFileEngine::create(), in order to avoid recursion (as higher-level classes tend to call QAbstractFileEngine::create()).

Definition at line 44 of file qfsfileengine_p.h.

Constructor & Destructor Documentation

QFSFileEngine() [1/3]

QFSFileEngine::QFSFileEngine

(

)

Constructs a QFSFileEngine.

Definition at line 121 of file qfsfileengine.cpp.

QFSFileEngine() [2/3]

QFSFileEngine::QFSFileEngine ( const QString &  file )

explicit

Constructs a QFSFileEngine for the file name file.

Definition at line 111 of file qfsfileengine.cpp.

References d, and file.

~QFSFileEngine()

QFSFileEngine::~QFSFileEngine

(

)

Destructs the QFSFileEngine.

Definition at line 169 of file qfsfileengine.cpp.

References d, and QT_CLOSE.

QFSFileEngine() [3/3]

QFSFileEngine::QFSFileEngine ( QFSFileEnginePrivate &  dd )

protected

Definition at line 128 of file qfsfileengine.cpp.

Member Function Documentation

beginEntryList()

QAbstractFileEngine::Iterator * QFSFileEngine::beginEntryList ( QDir::Filters  filters, const QStringList &  filterNames  )

overridevirtual

Reimplemented from QAbstractFileEngine.

Definition at line 795 of file qfsfileengine.cpp.

References filters.

caseSensitive()

bool QFSFileEngine::caseSensitive ( ) const

overridevirtual

Returns false for Windows, true for Unix.

Reimplemented from QAbstractFileEngine.

Definition at line 297 of file qfsfileengine_unix.cpp.

cloneTo()

bool QFSFileEngine::cloneTo ( QAbstractFileEngine *  target )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 656 of file qfsfileengine_unix.cpp.

References d, and QAbstractFileEngine::LocalDiskFlag.

close()

bool QFSFileEngine::close ( )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 353 of file qfsfileengine.cpp.

References d, and QIODeviceBase::NotOpen.

Referenced by QTemporaryFileEngine::~QTemporaryFileEngine(), AndroidContentFileEngine::close(), QTemporaryFileEngine::materializeUnnamedFile(), QTemporaryFileEngine::remove(), QTemporaryFileEngine::rename(), QTemporaryFileEngine::renameOverwrite(), and QTemporaryFileEngine::setFileName().

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copy()

bool QFSFileEngine::copy ( const QString &  copyName )

overridevirtual

For Windows or Apple platforms, copy the file to file copyName.

Not implemented for other Unix platforms.

Reimplemented from QAbstractFileEngine.

Definition at line 975 of file qfsfileengine.cpp.

References QFileDevice::CopyError, QFileSystemEngine::copyFile(), d, QAbstractFileEngine::error(), ret, and QAbstractFileEngine::setError().

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currentPath()

QString QFSFileEngine::currentPath ( const QString &  fileName = QString() )

static

For Unix, returns the current working directory for the file engine.

For Windows, returns the canonicalized form of the current path used by the file engine for the drive specified by fileName. On Windows, each drive has its own current directory, so a different path is returned for file names that include different drive names (e.g. A: or C:).

See also

setCurrentPath()

Definition at line 302 of file qfsfileengine_unix.cpp.

References QFileSystemEngine::currentPath(), and QFileSystemEntry::filePath().

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drives()

QFileInfoList QFSFileEngine::drives ( )

static

For Windows, returns the list of drives in the file system as a list of QFileInfo objects.

On Unix, only the root path is returned. On Windows, this function returns all drives (A:\, C:\, D:\, and so on).

For Unix, the list contains just the root path "/".

Definition at line 308 of file qfsfileengine_unix.cpp.

References ret, and rootPath().

Referenced by QDir::drives().

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endEntryList()

QAbstractFileEngine::Iterator * QFSFileEngine::endEntryList ( )

overridevirtual

Reimplemented from QAbstractFileEngine.

Definition at line 803 of file qfsfileengine.cpp.

entryList()

QStringList QFSFileEngine::entryList ( QDir::Filters  filters, const QStringList &  filterNames  ) const

overridevirtual

Reimplemented from QAbstractFileEngine.

Definition at line 812 of file qfsfileengine.cpp.

References QAbstractFileEngine::entryList(), and filters.

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extension()

bool QFSFileEngine::extension ( Extension  extension, const ExtensionOption *  option = nullptr, ExtensionReturn *  output = nullptr  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 843 of file qfsfileengine.cpp.

References QAbstractFileEngine::MapExtensionReturn::address, QAbstractFileEngine::UnMapExtensionOption::address, QAbstractFileEngine::AtEndExtension, d, extension(), QAbstractFileEngine::MapExtensionOption::flags, isSequential(), QAbstractFileEngine::MapExtension, QAbstractFileEngine::MapExtensionOption::offset, output, QAbstractFileEngine::MapExtensionOption::size, and QAbstractFileEngine::UnMapExtension.

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fileFlags()

QAbstractFileEngine::FileFlags QFSFileEngine::fileFlags ( FileFlags  type ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 344 of file qfsfileengine_unix.cpp.

References QFileSystemMetaData::AliasType, QAbstractFileEngine::BundleType, QFileSystemMetaData::BundleType, d, QAbstractFileEngine::DirectoryType, QFileSystemMetaData::DirectoryType, QFileSystemMetaData::ExistsAttribute, QAbstractFileEngine::ExistsFlag, QAbstractFileEngine::FileType, QFileSystemMetaData::FileType, QAbstractFileEngine::FlagsMask, QFileSystemMetaData::HiddenAttribute, QAbstractFileEngine::HiddenFlag, QAbstractFileEngine::LinkType, QFileSystemMetaData::LinkType, QAbstractFileEngine::LocalDiskFlag, QFileSystemMetaData::Permissions, QAbstractFileEngine::PermsMask, QAbstractFileEngine::Refresh, ret, QAbstractFileEngine::RootFlag, QAbstractFileEngine::TypesMask, and QFileSystemMetaData::WasDeletedAttribute.

fileName()

QString QFSFileEngine::fileName ( QAbstractFileEngine::FileName  file ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 427 of file qfsfileengine_unix.cpp.

References QAbstractFileEngine::AbsoluteLinkTarget, QAbstractFileEngine::AbsoluteName, QFileSystemEngine::absoluteName(), QAbstractFileEngine::AbsolutePathName, QAbstractFileEngine::BaseName, QAbstractFileEngine::BundleName, QFileSystemEngine::bundleName(), QAbstractFileEngine::CanonicalName, QFileSystemEngine::canonicalName(), QAbstractFileEngine::CanonicalPathName, d, QAbstractFileEngine::DefaultName, file, QFileSystemEngine::getLinkTarget(), QFileSystemEngine::getRawLinkPath(), QAbstractFileEngine::JunctionName, QAbstractFileEngine::NFileNames, QAbstractFileEngine::PathName, and QAbstractFileEngine::RawLinkPath.

Referenced by QTemporaryFileEngine::fileName().

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fileTime()

QDateTime QFSFileEngine::fileTime ( FileTime  time ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 524 of file qfsfileengine.cpp.

References QAbstractFileEngine::AccessTime, QFileSystemMetaData::AccessTime, d, time, and QFileSystemMetaData::Times.

flush()

bool QFSFileEngine::flush ( )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 408 of file qfsfileengine.cpp.

References d, and QIODeviceBase::WriteOnly.

Referenced by read(), readLine(), and write().

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handle()

int QFSFileEngine::handle ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 581 of file qfsfileengine.cpp.

References d.

homePath()

QString QFSFileEngine::homePath ( )

static

Returns the home path of the current user.

See also

rootPath()

Definition at line 918 of file qfsfileengine.cpp.

References QFileSystemEngine::homePath().

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id()

QByteArray QFSFileEngine::id ( ) const

overridevirtual

Since

5.9

Return an identifier that (hopefully) uniquely identifies this file in the system. Returns an invalid QByteArray() if that cannot be calculated.

Reimplemented from QAbstractFileEngine.

Definition at line 419 of file qfsfileengine_unix.cpp.

References d, and QFileSystemEngine::id().

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isRelativePath()

bool QFSFileEngine::isRelativePath ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 468 of file qfsfileengine_unix.cpp.

References d, and fp.

isSequential()

bool QFSFileEngine::isSequential ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 820 of file qfsfileengine.cpp.

References d.

Referenced by extension(), and supportsExtension().

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isUnnamedFile()

virtual bool QFSFileEngine::isUnnamedFile ( ) const

inlinevirtual

Reimplemented in QTemporaryFileEngine.

Definition at line 94 of file qfsfileengine_p.h.

Referenced by QFile::moveToTrash(), and QFile::remove().

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link()

bool QFSFileEngine::link ( const QString &  newName )

overridevirtual

Creates a link from the file currently specified by fileName() to newName.

What a link is depends on the underlying filesystem (be it a shortcut on Windows or a symbolic link on Unix). Returns true if successful; otherwise returns false.

Note

On Windows newName is expected to end with .lnk as the filename extension.

Reimplemented from QAbstractFileEngine.

Definition at line 281 of file qfsfileengine_unix.cpp.

References QFileSystemEngine::createLink(), d, QAbstractFileEngine::error(), QFileDevice::RenameError, ret, and QAbstractFileEngine::setError().

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mkdir()

bool QFSFileEngine::mkdir ( const QString &  dirName, bool  createParentDirectories, std::optional< QFile::Permissions >  permissions  ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 1027 of file qfsfileengine.cpp.

References QFileSystemEngine::createDirectory().

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open() [1/5]

bool QFSFileEngine::open	(	QIODevice::OpenMode	openMode,
		FILE *	fh
	)

Opens the file handle fh in openMode mode.

Returns true on success; otherwise returns false.

Definition at line 227 of file qfsfileengine.cpp.

References QFileDevice::DontCloseHandle, and open().

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open() [2/5]

bool QFSFileEngine::open	(	QIODevice::OpenMode	flags,
		FILE *	fh,
		QFile::FileHandleFlags	handleFlags
	)

Definition at line 232 of file qfsfileengine.cpp.

References QFileDevice::AutoCloseHandle, d, QFileDevice::OpenError, processOpenModeFlags(), Q_ASSERT_X, QAbstractFileEngine::setError(), and QIODeviceBase::Unbuffered.

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open() [3/5]

bool QFSFileEngine::open	(	QIODevice::OpenMode	openMode,
		int	fd
	)

Opens the file descriptor fd in openMode mode.

Returns true on success; otherwise returns false.

Definition at line 292 of file qfsfileengine.cpp.

References QFileDevice::DontCloseHandle, and open().

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open() [4/5]

bool QFSFileEngine::open	(	QIODevice::OpenMode	flags,
		int	fd,
		QFile::FileHandleFlags	handleFlags
	)

Definition at line 297 of file qfsfileengine.cpp.

References QFileDevice::AutoCloseHandle, d, QFileDevice::OpenError, processOpenModeFlags(), and QAbstractFileEngine::setError().

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open() [5/5]

bool QFSFileEngine::open ( QIODevice::OpenMode  openMode, std::optional< QFile::Permissions >  permissions  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 195 of file qfsfileengine.cpp.

References d, QFileDevice::OpenError, processOpenModeFlags(), Q_ASSERT_X, qWarning, QAbstractFileEngine::setError(), and QIODeviceBase::Unbuffered.

Referenced by open(), open(), QTemporaryFileEngine::open(), and AndroidContentFileEngine::open().

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owner()

QString QFSFileEngine::owner ( QAbstractFileEngine::FileOwner  own ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 486 of file qfsfileengine_unix.cpp.

References ownerId(), QAbstractFileEngine::OwnerUser, QFileSystemEngine::resolveGroupName(), and QFileSystemEngine::resolveUserName().

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ownerId()

uint QFSFileEngine::ownerId ( QAbstractFileEngine::FileOwner  own ) const

overridevirtual

In Unix, if stat() is successful, the uid is returned if own is the owner.

Otherwise the gid is returned. If stat() is unsuccessful, -2 is reuturned.

For Windows, -2 is always returned.

Reimplemented from QAbstractFileEngine.

Definition at line 475 of file qfsfileengine_unix.cpp.

References d, and QFileSystemMetaData::OwnerIds.

Referenced by owner().

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pos()

qint64 QFSFileEngine::pos ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 496 of file qfsfileengine.cpp.

References d.

Referenced by seek().

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read()

qint64 QFSFileEngine::read ( char *  data, qint64  maxlen  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 590 of file qfsfileengine.cpp.

References d, flush(), and QFSFileEnginePrivate::IOReadCommand.

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readLine()

qint64 QFSFileEngine::readLine ( char *  data, qint64  maxlen  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 668 of file qfsfileengine.cpp.

References d, flush(), and QFSFileEnginePrivate::IOReadCommand.

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remove()

bool QFSFileEngine::remove ( )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 988 of file qfsfileengine.cpp.

References d, QAbstractFileEngine::error(), QFileDevice::RemoveError, QFileSystemEngine::removeFile(), ret, and QAbstractFileEngine::setError().

Referenced by QTemporaryFileEngine::remove().

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rename()

bool QFSFileEngine::rename ( const QString &  newName )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 1002 of file qfsfileengine.cpp.

References d, QAbstractFileEngine::error(), QFileDevice::RenameError, QFileSystemEngine::renameFile(), ret, and QAbstractFileEngine::setError().

Referenced by QTemporaryFileEngine::rename().

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renameOverwrite()

bool QFSFileEngine::renameOverwrite ( const QString &  newName )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 1014 of file qfsfileengine.cpp.

References d, QAbstractFileEngine::error(), QFileDevice::RenameError, QFileSystemEngine::renameOverwriteFile(), ret, and QAbstractFileEngine::setError().

Referenced by QTemporaryFileEngine::materializeUnnamedFile(), and QTemporaryFileEngine::renameOverwrite().

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rmdir()

bool QFSFileEngine::rmdir ( const QString &  dirName, bool  recurseParentDirectories  ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 1037 of file qfsfileengine.cpp.

References QFileSystemEngine::removeDirectory().

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rootPath()

QString QFSFileEngine::rootPath ( )

static

Returns the root path.

See also

homePath()

Definition at line 928 of file qfsfileengine.cpp.

References QFileSystemEngine::rootPath().

Referenced by drives().

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seek()

bool QFSFileEngine::seek ( qint64  pos )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 515 of file qfsfileengine.cpp.

References d, and pos().

Referenced by QTemporaryFileEngine::close().

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setCurrentPath()

bool QFSFileEngine::setCurrentPath ( const QString &  path )

static

Sets the current path (e.g., for QDir), to path.

Returns true if the new path exists; otherwise this function does nothing, and returns false.

See also

currentPath()

Definition at line 1049 of file qfsfileengine.cpp.

References QFileSystemEngine::setCurrentPath().

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setFileName()

void QFSFileEngine::setFileName ( const QString &  file )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Reimplemented in QTemporaryFileEngine.

Definition at line 185 of file qfsfileengine.cpp.

References d, and file.

Referenced by AndroidContentFileEngine::AndroidContentFileEngine(), QTemporaryFileEngine::initialize(), and QTemporaryFileEngine::setFileName().

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setFileTime()

bool QFSFileEngine::setFileTime ( const QDateTime &  newDate, QAbstractFileEngine::FileTime  time  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 528 of file qfsfileengine_unix.cpp.

References d, QAbstractFileEngine::error(), QIODeviceBase::NotOpen, QFileDevice::PermissionsError, qt_error_string(), QAbstractFileEngine::setError(), QFileSystemEngine::setFileTime(), time, and QFileSystemMetaData::Times.

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setPermissions()

bool QFSFileEngine::setPermissions ( uint  perms )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 493 of file qfsfileengine_unix.cpp.

References d, QAbstractFileEngine::error(), ok, QFileSystemMetaData::Permissions, QFileDevice::PermissionsError, QAbstractFileEngine::setError(), and QFileSystemEngine::setPermissions().

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setSize()

bool QFSFileEngine::setSize ( qint64  size )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 513 of file qfsfileengine_unix.cpp.

References d, qt_error_string(), QFileDevice::ResizeError, ret, and QAbstractFileEngine::setError().

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size()

qint64 QFSFileEngine::size ( ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 458 of file qfsfileengine.cpp.

References d.

supportsExtension()

bool QFSFileEngine::supportsExtension ( Extension  extension ) const

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 866 of file qfsfileengine.cpp.

References QAbstractFileEngine::AtEndExtension, d, extension(), QAbstractFileEngine::FastReadLineExtension, isSequential(), QAbstractFileEngine::MapExtension, and QAbstractFileEngine::UnMapExtension.

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syncToDisk()

bool QFSFileEngine::syncToDisk ( )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 422 of file qfsfileengine.cpp.

References d, and QIODeviceBase::WriteOnly.

tempPath()

QString QFSFileEngine::tempPath ( )

static

Returns the temporary path (i.e., a path in which it is safe to store temporary files).

Definition at line 937 of file qfsfileengine.cpp.

References QFileSystemEngine::tempPath().

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write()

qint64 QFSFileEngine::write ( const char *  data, qint64  len  )

overridevirtual

\reimp

Reimplemented from QAbstractFileEngine.

Definition at line 721 of file qfsfileengine.cpp.

References d, flush(), QFSFileEnginePrivate::IOWriteCommand, and QFileSystemMetaData::Times.

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

• qtbase/src/corelib/io/qfsfileengine_p.h
• qtbase/src/corelib/io/qfsfileengine.cpp
• qtbase/src/corelib/io/qfsfileengine_unix.cpp
• qtbase/src/corelib/io/qfsfileengine_win.cpp