#include <qfsfileengine_p.h>

Inheritance diagram for QFSFileEnginePrivate:

Collaboration diagram for QFSFileEnginePrivate:

Classes
struct	StartAndLength

Public Types
enum	LastIOCommand { IOFlushCommand , IOReadCommand , IOWriteCommand }

Public Member Functions
bool	nativeOpen (QIODevice::OpenMode openMode, std::optional< QFile::Permissions > permissions)

bool	openFh (QIODevice::OpenMode flags, FILE *fh)
	Opens the file handle fh using the open mode flags.

bool	openFd (QIODevice::OpenMode flags, int fd)
	Opens the file descriptor fd to the file engine, using the open mode flags.

bool	nativeClose ()

bool	closeFdFh ()

bool	nativeFlush ()

bool	nativeSyncToDisk ()

bool	flushFh ()

qint64	nativeSize () const

qint64	sizeFdFh () const

qint64	nativePos () const

qint64	posFdFh () const

bool	nativeSeek (qint64)

bool	seekFdFh (qint64)

qint64	nativeRead (char *data, qint64 maxlen)

qint64	readFdFh (char *data, qint64 maxlen)

qint64	nativeReadLine (char *data, qint64 maxlen)

qint64	readLineFdFh (char *data, qint64 maxlen)

qint64	nativeWrite (const char *data, qint64 len)

qint64	writeFdFh (const char *data, qint64 len)

int	nativeHandle () const

bool	nativeIsSequential () const

bool	isSequentialFdFh () const

uchar *	map (qint64 offset, qint64 size, QFile::MemoryMapFlags flags)

bool	unmap (uchar *ptr)

void	unmapAll ()

bool	doStat (QFileSystemMetaData::MetaDataFlags flags=QFileSystemMetaData::PosixStatFlags) const

bool	isSymlink () const

Public Member Functions inherited from QAbstractFileEnginePrivate
	QAbstractFileEnginePrivate ()

virtual	~QAbstractFileEnginePrivate ()

Static Public Member Functions
static bool	openModeCanCreate (QIODevice::OpenMode openMode)

Public Attributes
QFileSystemEntry	fileEntry

QIODevice::OpenMode	openMode

QFileSystemMetaData	metaData

FILE *	fh

QHash< uchar *, StartAndLength >	maps

int	fd

LastIOCommand	lastIOCommand

bool	lastFlushFailed

bool	closeFileHandle

uint	is_sequential: 2

uint	tried_stat: 1

uint	need_lstat: 1

uint	is_link: 1

Public Attributes inherited from QAbstractFileEnginePrivate
QFile::FileError	fileError

QString	errorString

QAbstractFileEngine *	q_ptr

Protected Member Functions
	QFSFileEnginePrivate ()

void	init ()

QAbstractFileEngine::FileFlags	getPermissions (QAbstractFileEngine::FileFlags type) const

Detailed Description

Definition at line 115 of file qfsfileengine_p.h.

Member Enumeration Documentation

◆ LastIOCommand

enum QFSFileEnginePrivate::LastIOCommand

Enumerator
IOFlushCommand
IOReadCommand
IOWriteCommand

Definition at line 179 of file qfsfileengine_p.h.

Constructor & Destructor Documentation

◆ QFSFileEnginePrivate()

QFSFileEnginePrivate::QFSFileEnginePrivate ( )

protected

Definition at line 80 of file qfsfileengine.cpp.

References init().

Here is the call graph for this function:

Member Function Documentation

◆ closeFdFh()

bool QFSFileEnginePrivate::closeFdFh ( )

Definition at line 363 of file qfsfileengine.cpp.

References closeFileHandle, fh, lastFlushFailed, QT_CLOSE, ret, QSystemError::stdString(), tried_stat, and QFileDevice::UnspecifiedError.

Referenced by nativeClose().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ doStat()

bool QFSFileEnginePrivate::doStat ( QFileSystemMetaData::MetaDataFlags flags = QFileSystemMetaData::PosixStatFlags ) const

Definition at line 315 of file qfsfileengine_unix.cpp.

References QFileSystemMetaData::exists(), fd, fh, fileEntry, QFileSystemEngine::fillMetaData(), QFileSystemMetaData::hasFlags(), QFileSystemEntry::isEmpty(), metaData, QFileSystemMetaData::missingFlags(), and tried_stat.

Referenced by map(), and sizeFdFh().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ flushFh()

bool QFSFileEnginePrivate::flushFh ( )

Definition at line 433 of file qfsfileengine.cpp.

References fh, IOFlushCommand, lastFlushFailed, lastIOCommand, QFileDevice::ResourceError, ret, QSystemError::stdString(), and QFileDevice::WriteError.

Referenced by nativeFlush().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ getPermissions()

QAbstractFileEngine::FileFlags QFSFileEnginePrivate::getPermissions ( QAbstractFileEngine::FileFlags type ) const

protected

◆ init()

void QFSFileEnginePrivate::init ( )

protected

Definition at line 88 of file qfsfileengine.cpp.

References closeFileHandle, fh, INVALID_FILE_ATTRIBUTES, IOFlushCommand, is_link, is_sequential, lastFlushFailed, lastIOCommand, need_lstat, QIODeviceBase::NotOpen, openMode, and tried_stat.

Referenced by QFSFileEnginePrivate().

Here is the caller graph for this function:

◆ isSequentialFdFh()

bool QFSFileEnginePrivate::isSequentialFdFh ( ) const

Referenced by nativeIsSequential().

Here is the caller graph for this function:

◆ isSymlink()

bool QFSFileEnginePrivate::isSymlink ( ) const

Definition at line 333 of file qfsfileengine_unix.cpp.

References fileEntry, QFileSystemEngine::fillMetaData(), QFileSystemMetaData::hasFlags(), QFileSystemMetaData::isLink(), QFileSystemMetaData::LinkType, and metaData.

Here is the call graph for this function:

◆ map()

uchar * QFSFileEnginePrivate::map	(	qint64	offset,
		qint64	size,
		QFile::MemoryMapFlags	flags
	)

Definition at line 547 of file qfsfileengine_unix.cpp.

References doStat(), MAP_FAILED, QFileDevice::MapPrivateOption, maps, metaData, nativeHandle(), QIODeviceBase::NotOpen, openMode, QFileDevice::PermissionsError, Q_INT64_C, qMin(), qt_error_string(), qWarning, QIODeviceBase::ReadOnly, QFileDevice::ResourceError, QFileSystemMetaData::size(), QFileSystemMetaData::SizeAttribute, QFileDevice::UnspecifiedError, and QIODeviceBase::WriteOnly.

Here is the call graph for this function:

◆ nativeClose()

bool QFSFileEnginePrivate::nativeClose ( )

Definition at line 140 of file qfsfileengine_unix.cpp.

References closeFdFh().

Here is the call graph for this function:

◆ nativeFlush()

bool QFSFileEnginePrivate::nativeFlush ( )

Definition at line 149 of file qfsfileengine_unix.cpp.

References fh, and flushFh().

Here is the call graph for this function:

◆ nativeHandle()

int QFSFileEnginePrivate::nativeHandle ( ) const

Definition at line 268 of file qfsfileengine_unix.cpp.

References fd, and fh.

Referenced by map(), and nativeSyncToDisk().

Here is the caller graph for this function:

◆ nativeIsSequential()

bool QFSFileEnginePrivate::nativeIsSequential ( ) const

Definition at line 276 of file qfsfileengine_unix.cpp.

References isSequentialFdFh().

Referenced by nativeRead().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ nativeOpen()

bool QFSFileEnginePrivate::nativeOpen	(	QIODevice::OpenMode	openMode,
		std::optional< QFile::Permissions >	permissions
	)

Definition at line 75 of file qfsfileengine_unix.cpp.

References openMode.

◆ nativePos()

qint64 QFSFileEnginePrivate::nativePos ( ) const

Definition at line 252 of file qfsfileengine_unix.cpp.

References posFdFh().

Here is the call graph for this function:

◆ nativeRead()

qint64 QFSFileEnginePrivate::nativeRead	(	char *	data,
		qint64	len
	)

Definition at line 175 of file qfsfileengine_unix.cpp.

References fh, i, nativeIsSequential(), qt_error_string(), read(), QFileDevice::ReadError, and readFdFh().

Here is the call graph for this function:

◆ nativeReadLine()

qint64 QFSFileEnginePrivate::nativeReadLine	(	char *	data,
		qint64	maxlen
	)

Definition at line 236 of file qfsfileengine_unix.cpp.

References readLineFdFh().

Here is the call graph for this function:

◆ nativeSeek()

bool QFSFileEnginePrivate::nativeSeek ( qint64 pos )

Definition at line 260 of file qfsfileengine_unix.cpp.

References pos, and seekFdFh().

Here is the call graph for this function:

◆ nativeSize()

qint64 QFSFileEnginePrivate::nativeSize ( ) const

Definition at line 292 of file qfsfileengine_unix.cpp.

References sizeFdFh().

Here is the call graph for this function:

◆ nativeSyncToDisk()

bool QFSFileEnginePrivate::nativeSyncToDisk ( )

Since: 5.1

Definition at line 158 of file qfsfileengine_unix.cpp.

References EINTR_LOOP, nativeHandle(), qt_error_string(), ret, and QFileDevice::WriteError.

Here is the call graph for this function:

◆ nativeWrite()

qint64 QFSFileEnginePrivate::nativeWrite	(	const char *	data,
		qint64	len
	)

Definition at line 244 of file qfsfileengine_unix.cpp.

References writeFdFh().

Here is the call graph for this function:

◆ openFd()

bool QFSFileEnginePrivate::openFd	(	QIODevice::OpenMode	flags,
		int	fd
	)

Opens the file descriptor fd to the file engine, using the open mode flags.

Definition at line 323 of file qfsfileengine.cpp.

References QIODeviceBase::Append, fd, fh, QIODeviceBase::NotOpen, QFileDevice::OpenError, openMode, QFileDevice::ResourceError, ret, and QSystemError::stdString().

Here is the call graph for this function:

◆ openFh()

bool QFSFileEnginePrivate::openFh	(	QIODevice::OpenMode	flags,
		FILE *	fh
	)

Opens the file handle fh using the open mode flags.

Definition at line 258 of file qfsfileengine.cpp.

References QIODeviceBase::Append, fh, QIODeviceBase::NotOpen, QFileDevice::OpenError, openMode, Q_ASSERT_X, QFileDevice::ResourceError, ret, QSystemError::stdString(), and QIODeviceBase::Unbuffered.

Here is the call graph for this function:

◆ openModeCanCreate()

static bool QFSFileEnginePrivate::openModeCanCreate ( QIODevice::OpenMode openMode )

inlinestatic

Definition at line 205 of file qfsfileengine_p.h.

References QIODeviceBase::ExistingOnly, and QIODeviceBase::WriteOnly.

Referenced by openModeToOpenFlags().

Here is the caller graph for this function:

◆ posFdFh()

qint64 QFSFileEnginePrivate::posFdFh ( ) const

Definition at line 505 of file qfsfileengine.cpp.

References fh.

Referenced by nativePos().

Here is the caller graph for this function:

◆ readFdFh()

qint64 QFSFileEnginePrivate::readFdFh	(	char *	data,
		qint64	len
	)

Definition at line 608 of file qfsfileengine.cpp.

References fh, QT_READ, QFileDevice::ReadError, and QSystemError::stdString().

Referenced by nativeRead().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ readLineFdFh()

qint64 QFSFileEnginePrivate::readLineFdFh	(	char *	data,
		qint64	maxlen
	)

Definition at line 686 of file qfsfileengine.cpp.

References fh, qstrlen(), QFileDevice::ReadError, and QSystemError::stdString().

Referenced by nativeReadLine().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ seekFdFh()

bool QFSFileEnginePrivate::seekFdFh ( qint64 pos )

Definition at line 543 of file qfsfileengine.cpp.

References fh, IOFlushCommand, lastIOCommand, pos, QFileDevice::PositionError, qWarning, QFileDevice::ReadError, ret, and QSystemError::stdString().

Referenced by nativeSeek().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ sizeFdFh()

qint64 QFSFileEnginePrivate::sizeFdFh ( ) const

Definition at line 480 of file qfsfileengine.cpp.

References QFileSystemMetaData::clearFlags(), doStat(), metaData, QFileSystemMetaData::size(), QFileSystemMetaData::SizeAttribute, and tried_stat.

Referenced by nativeSize().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ unmap()

bool QFSFileEnginePrivate::unmap ( uchar * ptr )

Definition at line 630 of file qfsfileengine_unix.cpp.

References QSet< T >::find(), it, maps, QFileDevice::PermissionsError, ptr(), qt_error_string(), and QFileDevice::UnspecifiedError.

Referenced by unmapAll().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ unmapAll()

void QFSFileEnginePrivate::unmapAll ( )

Definition at line 467 of file qfsfileengine.cpp.

References i, keys, maps, and unmap().

Here is the call graph for this function:

◆ writeFdFh()

qint64 QFSFileEnginePrivate::writeFdFh	(	const char *	data,
		qint64	len
	)

Definition at line 740 of file qfsfileengine.cpp.

References QFileSystemMetaData::clearFlags(), fh, metaData, QT_WRITE, QFileDevice::ResourceError, QFileSystemMetaData::SizeAttribute, QSystemError::stdString(), and QFileDevice::WriteError.

Referenced by nativeWrite().

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

◆ closeFileHandle

bool QFSFileEnginePrivate::closeFileHandle

Definition at line 187 of file qfsfileengine_p.h.

Referenced by closeFdFh(), and init().

◆ fd

int QFSFileEnginePrivate::fd

Definition at line 177 of file qfsfileengine_p.h.

Referenced by doStat(), nativeHandle(), and openFd().

◆ fh

FILE* QFSFileEnginePrivate::fh

Definition at line 161 of file qfsfileengine_p.h.

Referenced by closeFdFh(), doStat(), flushFh(), init(), nativeFlush(), nativeHandle(), nativeRead(), openFd(), openFh(), posFdFh(), readFdFh(), readLineFdFh(), seekFdFh(), and writeFdFh().

◆ fileEntry

QFileSystemEntry QFSFileEnginePrivate::fileEntry

Definition at line 124 of file qfsfileengine_p.h.

Referenced by doStat(), and isSymlink().

◆ is_link

uint QFSFileEnginePrivate::is_link

mutable

Definition at line 192 of file qfsfileengine_p.h.

Referenced by init().

◆ is_sequential

uint QFSFileEnginePrivate::is_sequential

mutable

Definition at line 189 of file qfsfileengine_p.h.

Referenced by init().

◆ lastFlushFailed

bool QFSFileEnginePrivate::lastFlushFailed

Definition at line 186 of file qfsfileengine_p.h.

Referenced by closeFdFh(), flushFh(), and init().

◆ lastIOCommand

LastIOCommand QFSFileEnginePrivate::lastIOCommand

Definition at line 185 of file qfsfileengine_p.h.

Referenced by flushFh(), init(), and seekFdFh().

◆ maps

QHash<uchar *, StartAndLength> QFSFileEnginePrivate::maps

Definition at line 175 of file qfsfileengine_p.h.

Referenced by map(), unmap(), and unmapAll().

◆ metaData

QFileSystemMetaData QFSFileEnginePrivate::metaData

mutable

Definition at line 159 of file qfsfileengine_p.h.

Referenced by doStat(), isSymlink(), map(), sizeFdFh(), and writeFdFh().

◆ need_lstat

uint QFSFileEnginePrivate::need_lstat

mutable

Definition at line 191 of file qfsfileengine_p.h.

Referenced by init().

◆ openMode

QIODevice::OpenMode QFSFileEnginePrivate::openMode

Definition at line 125 of file qfsfileengine_p.h.

Referenced by init(), map(), nativeOpen(), openFd(), and openFh().

◆ tried_stat

uint QFSFileEnginePrivate::tried_stat

mutable

Definition at line 190 of file qfsfileengine_p.h.

Referenced by closeFdFh(), doStat(), init(), and sizeFdFh().

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

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ LastIOCommand

Constructor & Destructor Documentation

◆ QFSFileEnginePrivate()

Member Function Documentation

◆ closeFdFh()

◆ doStat()

◆ flushFh()

◆ getPermissions()

◆ init()

◆ isSequentialFdFh()

◆ isSymlink()

◆ map()

◆ nativeClose()

◆ nativeFlush()

◆ nativeHandle()

◆ nativeIsSequential()

◆ nativeOpen()

◆ nativePos()

◆ nativeRead()

◆ nativeReadLine()

◆ nativeSeek()

◆ nativeSize()

◆ nativeSyncToDisk()

◆ nativeWrite()

◆ openFd()

◆ openFh()

◆ openModeCanCreate()

◆ posFdFh()

◆ readFdFh()

◆ readLineFdFh()

◆ seekFdFh()

◆ sizeFdFh()

◆ unmap()

◆ unmapAll()

◆ writeFdFh()

Member Data Documentation

◆ closeFileHandle

◆ fd

◆ fh

◆ fileEntry

◆ is_link

◆ is_sequential

◆ lastFlushFailed

◆ lastIOCommand

◆ maps

◆ metaData

◆ need_lstat

◆ openMode

◆ tried_stat