exFAT volume. More...

#include <ExFatVolume.h>

Inheritance diagram for ExFatVolume:

Collaboration diagram for ExFatVolume:

Public Member Functions
bool	begin (BlockDevice *dev, bool setCwv=true, uint8_t part=1)

uint32_t	bytesPerCluster ()

uint8_t	bytesPerClusterShift ()

uint16_t	bytesPerSector ()

uint8_t	bytesPerSectorShift ()

uint8_t *	cacheClear ()

bool	chdir ()

bool	chdir (const char *path)

void	chvol ()

uint32_t	clusterCount ()

uint32_t	clusterHeapStartSector ()

bool	exists (const ExChar_t *path)

uint32_t	fatLength ()

uint32_t	fatStartSector ()

uint8_t	fatType () const

uint32_t	freeClusterCount ()

bool	init (BlockDevice *dev, uint8_t part)

bool	ls (print_t *pr, uint8_t flags=0)

bool	ls (print_t pr, const ExChar_t path, uint8_t flags)

bool	mkdir (const ExChar_t *path, bool pFlag=true)

ExFile	open (const ExChar_t *path, oflag_t oflag=0X00)

bool	remove (const ExChar_t *path)

bool	rename (const ExChar_t oldPath, const ExChar_t newPath)

bool	rmdir (const ExChar_t *path)

uint32_t	rootDirectoryCluster ()

uint32_t	rootLength ()

uint32_t	sectorsPerCluster ()

uint8_t	sectorsPerClusterShift ()

bool	truncate (const ExChar_t *path, uint64_t length)

Static Public Member Functions
static ExFatVolume *	cwv ()

Detailed Description

exFAT volume.

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Member Function Documentation

◆ begin()

bool ExFatVolume::begin	(	BlockDevice *	dev,
		bool	setCwv = `true`,
		uint8_t	part = `1`
	)

inline

Initialize an FatVolume object.

Parameters

[in]	dev	Device block driver.
[in]	setCwv	Set current working volume if true.
[in]	part	partition to initialize.

Returns: true for success or false for failure.

◆ bytesPerCluster()

uint32_t ExFatPartition::bytesPerCluster ( )

inlineinherited

Returns: the number of bytes in a cluster.

◆ bytesPerClusterShift()

uint8_t ExFatPartition::bytesPerClusterShift ( )

inlineinherited

Returns: the power of two for bytesPerCluster.

◆ bytesPerSector()

uint16_t ExFatPartition::bytesPerSector ( )

inlineinherited

Returns: the number of bytes in a sector.

◆ bytesPerSectorShift()

uint8_t ExFatPartition::bytesPerSectorShift ( )

inlineinherited

Returns: the power of two for bytesPerSector.

◆ cacheClear()

uint8_t* ExFatPartition::cacheClear ( )

inlineinherited

Clear the cache and returns a pointer to the cache. Not for normal apps.

Returns: A pointer to the cache buffer or zero if an error occurs.

◆ chdir() [1/2]

bool ExFatVolume::chdir ( )

inline

Set volume working directory to root.

Returns: true for success or false for failure.

◆ chdir() [2/2]

bool ExFatVolume::chdir ( const char * path )

Set volume working directory.

Parameters

[in] path Path for volume working directory.

Returns: true for success or false for failure.

◆ chvol()

void ExFatVolume::chvol ( )

inline

Change global working volume to this volume.

◆ clusterCount()

uint32_t ExFatPartition::clusterCount ( )

inlineinherited

Returns: the cluster count for the partition.

◆ clusterHeapStartSector()

uint32_t ExFatPartition::clusterHeapStartSector ( )

inlineinherited

Returns: the cluster heap start sector.

◆ cwv()

static ExFatVolume* ExFatVolume::cwv ( )

inlinestatic

Returns: current working volume.

◆ exists()

bool ExFatVolume::exists ( const ExChar_t * path )

inline

Test for the existence of a file.

Parameters

[in] path Path of the file to be tested for.

Returns: true if the file exists else false.

◆ fatLength()

uint32_t ExFatPartition::fatLength ( )

inlineinherited

Returns: the FAT length in sectors

◆ fatStartSector()

uint32_t ExFatPartition::fatStartSector ( )

inlineinherited

Returns: the FAT start sector number.

◆ fatType()

uint8_t ExFatPartition::fatType ( ) const

inlineinherited

Returns: Type FAT_TYPE_EXFAT for exFAT partition or zero for error.

◆ freeClusterCount()

uint32_t ExFatPartition::freeClusterCount ( )

inherited

Returns: the free cluster count.

◆ init()

bool ExFatPartition::init	(	BlockDevice *	dev,
		uint8_t	part
	)

inherited

Initialize a exFAT partition.

Parameters

[in]	dev	The blockDevice for the partition.
[in]	part	The partition to be used. Legal values for part are 1-4 to use the corresponding partition on a device formatted with a MBR, Master Boot Record, or zero if the device is formatted as a super floppy with the FAT boot sector in sector zero.

Returns: true for success or false for failure.

◆ ls() [1/2]

bool ExFatVolume::ls	(	print_t *	pr,
		uint8_t	flags = `0`
	)

inline

List the directory contents of the root directory.

Parameters

[in]	pr	Print stream for list.
[in]	flags	The inclusive OR of

LS_DATE - Print file modification date

LS_SIZE - Print file size.

LS_R - Recursive list of subdirectories.

Returns: true for success or false for failure.

◆ ls() [2/2]

bool ExFatVolume::ls	(	print_t *	pr,
		const ExChar_t *	path,
		uint8_t	flags
	)

inline

List the contents of a directory.

Parameters

[in]	pr	Print stream for list.
[in]	path	directory to list.
[in]	flags	The inclusive OR of

LS_DATE - Print file modification date

LS_SIZE - Print file size.

LS_R - Recursive list of subdirectories.

Returns: true for success or false for failure.

◆ mkdir()

bool ExFatVolume::mkdir	(	const ExChar_t *	path,
		bool	pFlag = `true`
	)

inline

Make a subdirectory in the volume root directory.

Parameters

[in]	path	A path with a valid 8.3 DOS name for the subdirectory.
[in]	pFlag	Create missing parent directories if true.

Returns: true for success or false for failure.

◆ open()

ExFile ExFatVolume::open	(	const ExChar_t *	path,
		oflag_t	oflag = `0X00`
	)

inline

open a file

Parameters

[in]	path	location of file to be opened.
[in]	oflag	open flags.

Returns: a ExFile object.

◆ remove()

bool ExFatVolume::remove ( const ExChar_t * path )

inline

Remove a file from the volume root directory.

Parameters

[in] path A path with a valid 8.3 DOS name for the file.

Returns: true for success or false for failure.

◆ rename()

bool ExFatVolume::rename	(	const ExChar_t *	oldPath,
		const ExChar_t *	newPath
	)

inline

Rename a file or subdirectory.

Parameters

[in]	oldPath	Path name to the file or subdirectory to be renamed.
[in]	newPath	New path name of the file or subdirectory.

The newPath object must not exist before the rename call.

The file to be renamed must not be open. The directory entry may be moved and file system corruption could occur if the file is accessed by a file object that was opened before the rename() call.

Returns: true for success or false for failure.

◆ rmdir()

bool ExFatVolume::rmdir ( const ExChar_t * path )

inline

Remove a subdirectory from the volume's working directory.

Parameters

[in] path A path with a valid 8.3 DOS name for the subdirectory.

The subdirectory file will be removed only if it is empty.

Returns: true for success or false for failure.

◆ rootDirectoryCluster()

uint32_t ExFatPartition::rootDirectoryCluster ( )

inlineinherited

Returns: the root directory start cluster number.

◆ rootLength()

uint32_t ExFatPartition::rootLength ( )

inherited

Returns: the root directory length.

◆ sectorsPerCluster()

uint32_t ExFatPartition::sectorsPerCluster ( )

inlineinherited

Returns: the number of sectors in a cluster.

◆ sectorsPerClusterShift()

uint8_t ExFatPartition::sectorsPerClusterShift ( )

inlineinherited

Returns: the power of two for sectors per cluster.

◆ truncate()

bool ExFatVolume::truncate	(	const ExChar_t *	path,
		uint64_t	length
	)

inline

Truncate a file to a specified length. The current file position will be at the new EOF.

Parameters

[in]	path	A path with a valid 8.3 DOS name for the file.
[in]	length	The desired length for the file.

Returns: true for success or false for failure.

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

ArduinoSdFat/libraries/SdFat/src/ExFatLib/ExFatVolume.h
ArduinoSdFat/libraries/SdFat/src/ExFatLib/ExFatVolume.cpp

Public Member Functions

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ begin()

◆ bytesPerCluster()

◆ bytesPerClusterShift()

◆ bytesPerSector()

◆ bytesPerSectorShift()

◆ cacheClear()

◆ chdir() [1/2]

◆ chdir() [2/2]

◆ chvol()

◆ clusterCount()

◆ clusterHeapStartSector()

◆ cwv()

◆ exists()

◆ fatLength()

◆ fatStartSector()

◆ fatType()

◆ freeClusterCount()

◆ init()

◆ ls() [1/2]

◆ ls() [2/2]

◆ mkdir()

◆ open()

◆ remove()

◆ rename()

◆ rmdir()

◆ rootDirectoryCluster()

◆ rootLength()

◆ sectorsPerCluster()

◆ sectorsPerClusterShift()

◆ truncate()