Block device class. More...

#include <cmsis-plus/posix-io/block-device.h>

Inheritance diagram for os::posix::block_device:

Public Types
using	blknum_t = std::size_t

Types & Constants
enum class	type : type_t { unknown = 0 , not_set = 1 << 0 , char_device = 1 << 1 , block_device = 1 << 2 , tty = 1 << 3 , file = 1 << 4 , socket = 1 << 5 }

using	type_t = unsigned int

Public Member Functions
Constructors & Destructor
	block_device (block_device_impl &impl, const char *name)

virtual	~block_device () override

Public Member Functions
virtual int	vioctl (int request, std::va_list args) override

virtual ssize_t	read_block (void *buf, blknum_t blknum, std::size_t nblocks=1)

virtual ssize_t	write_block (const void *buf, blknum_t blknum, std::size_t nblocks=1)

blknum_t	blocks (void)

std::size_t	block_logical_size_bytes (void)

std::size_t	block_physical_size_bytes (void)

block_device_impl &	impl (void) const

Public Member Functions
virtual ssize_t	read (void *buf, std::size_t nbyte)

virtual ssize_t	write (const void *buf, std::size_t nbyte)

virtual ssize_t	writev (const iovec *iov, int iovcnt)

int	fcntl (int cmd,...)

virtual int	vfcntl (int cmd, std::va_list args)

int	isatty (void)

virtual int	fstat (struct stat *buf)

virtual off_t	lseek (off_t offset, int whence)

type_t	get_type (void) const

file_descriptor_t	file_descriptor (void) const

bool	is_opened (void)

Protected Member Functions
Private Member Functions
void	file_descriptor (file_descriptor_t fildes)

void	clear_file_descriptor (void)

io *	alloc_file_descriptor (void)

Public Member Functions
int	open (const char *path=nullptr, int oflag=0,...)

int	vopen (const char *path, int oflag, std::va_list args)

virtual int	close (void) override

int	ioctl (int request,...)

virtual void	sync (void)

virtual bool	match_name (const char *name) const

const char *	name (void) const

static const char *	device_prefix (void)

Detailed Description

Block device class.

Definition at line 61 of file block-device.h.

Member Typedef Documentation

◆ blknum_t

using os::posix::block_device::blknum_t = std::size_t

Definition at line 67 of file block-device.h.

◆ type_t

using os::posix::io::type_t = unsigned int

inherited

Definition at line 127 of file io.h.

Member Enumeration Documentation

◆ type

enum class os::posix::io::type : type_t

stronginherited

Enumerator
unknown
not_set
char_device
block_device
tty
file
socket

Definition at line 128 of file io.h.

Constructor & Destructor Documentation

◆ block_device()

os::posix::block_device::block_device	(	block_device_impl &	impl,
		const char *	name
	)

Definition at line 41 of file block-device.cpp.

◆ ~block_device()

os::posix::block_device::~block_device ( )

overridevirtual

Definition at line 52 of file block-device.cpp.

Member Function Documentation

◆ alloc_file_descriptor()

io * os::posix::io::alloc_file_descriptor ( void )

protectedinherited

Definition at line 190 of file io.cpp.

◆ block_logical_size_bytes()

std::size_t os::posix::block_device::block_logical_size_bytes ( void )

inline

Returns: The number of bytes in a block.

Definition at line 472 of file block-device.h.

◆ block_physical_size_bytes()

std::size_t os::posix::block_device::block_physical_size_bytes ( void )

inline

Definition at line 478 of file block-device.h.

◆ blocks()

block_device::blknum_t os::posix::block_device::blocks ( void )

inline

Returns: The number of blocks.

Definition at line 466 of file block-device.h.

◆ clear_file_descriptor()

void os::posix::io::clear_file_descriptor ( void )

inlineprotectedinherited

Definition at line 450 of file io.h.

◆ close()

int os::posix::device::close ( void )

overridevirtualinherited

Reimplemented from os::posix::io.

Reimplemented in os::posix::block_device_lockable< T, L >.

Definition at line 114 of file device.cpp.

◆ device_prefix()

const char * os::posix::device::device_prefix ( void )

inlinestaticinherited

Definition at line 319 of file device.h.

◆ fcntl()

int os::posix::io::fcntl	(	int	cmd,
			...
	)

inherited

Definition at line 364 of file io.cpp.

◆ file_descriptor() [1/2]

void os::posix::io::file_descriptor ( file_descriptor_t fildes )

inlineprotectedinherited

Definition at line 444 of file io.h.

◆ file_descriptor() [2/2]

file_descriptor_t os::posix::io::file_descriptor ( void ) const

inlineinherited

Definition at line 456 of file io.h.

◆ fstat()

int os::posix::io::fstat ( struct stat * buf )

virtualinherited

Reimplemented in os::posix::file_lockable< T, L >.

Definition at line 417 of file io.cpp.

◆ get_type()

io::type_t os::posix::io::get_type ( void ) const

inlineinherited

Definition at line 438 of file io.h.

◆ impl()

block_device_impl & os::posix::block_device::impl ( void ) const

inline

Definition at line 484 of file block-device.h.

◆ ioctl()

int os::posix::device::ioctl	(	int	request,
			...
	)

inherited

Definition at line 138 of file device.cpp.

◆ is_opened()

bool os::posix::io::is_opened ( void )

inlineinherited

Definition at line 462 of file io.h.

◆ isatty()

int os::posix::io::isatty ( void )

inherited

Definition at line 407 of file io.cpp.

◆ lseek()

off_t os::posix::io::lseek	(	off_t	offset,
		int	whence
	)

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >, and os::posix::file_lockable< T, L >.

Definition at line 448 of file io.cpp.

◆ match_name()

bool os::posix::device::match_name ( const char * name ) const

virtualinherited

Definition at line 192 of file device.cpp.

◆ name()

const char * os::posix::device::name ( void ) const

inlineinherited

Definition at line 307 of file device.h.

◆ open()

int os::posix::device::open	(	const char *	path = `nullptr`,
		int	oflag = `0`,
			...
	)

inherited

Parameters

path	May be nullptr.
oflag	Output flags

Returns: non-negative file descriptor, -1 on failure

Definition at line 64 of file device.cpp.

◆ read()

ssize_t os::posix::io::read	(	void *	buf,
		std::size_t	nbyte
	)

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >, and os::posix::file_lockable< T, L >.

Definition at line 218 of file io.cpp.

◆ read_block()

ssize_t os::posix::block_device::read_block	(	void *	buf,
		blknum_t	blknum,
		std::size_t	nblocks = `1`
	)

virtual

Reimplemented in os::posix::block_device_partition_lockable< T, L >, and os::posix::block_device_lockable< T, L >.

Definition at line 62 of file block-device.cpp.

◆ sync()

void os::posix::device::sync ( void )

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >.

Definition at line 174 of file device.cpp.

◆ vfcntl()

int os::posix::io::vfcntl	(	int	cmd,
		std::va_list	args
	)

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >, and os::posix::file_lockable< T, L >.

Definition at line 381 of file io.cpp.

◆ vioctl()

int os::posix::block_device::vioctl	(	int	request,
		std::va_list	args
	)

overridevirtual

Reimplemented from os::posix::device.

Reimplemented in os::posix::block_device_partition_lockable< T, L >, and os::posix::block_device_lockable< T, L >.

Definition at line 109 of file block-device.cpp.

◆ vopen()

int os::posix::device::vopen	(	const char *	path,
		int	oflag,
		std::va_list	args
	)

inherited

Parameters

path	May be nullptr.
oflag	Output flags
args	Arguments

Returns: non-negative file descriptor, -1 on failure

Definition at line 76 of file device.cpp.

◆ write()

ssize_t os::posix::io::write	(	const void *	buf,
		std::size_t	nbyte
	)

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >, and os::posix::file_lockable< T, L >.

Definition at line 269 of file io.cpp.

◆ write_block()

ssize_t os::posix::block_device::write_block	(	const void *	buf,
		blknum_t	blknum,
		std::size_t	nblocks = `1`
	)

virtual

Reimplemented in os::posix::block_device_partition_lockable< T, L >, and os::posix::block_device_lockable< T, L >.

Definition at line 85 of file block-device.cpp.

◆ writev()

ssize_t os::posix::io::writev	(	const iovec *	iov,
		int	iovcnt
	)

virtualinherited

Reimplemented in os::posix::block_device_lockable< T, L >, and os::posix::file_lockable< T, L >.

Definition at line 322 of file io.cpp.

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

Public Types

Public Member Functions

Protected Member Functions

Public Member Functions

Detailed Description

Member Typedef Documentation

◆ blknum_t

◆ type_t

Member Enumeration Documentation

◆ type

Constructor & Destructor Documentation

◆ block_device()

◆ ~block_device()

Member Function Documentation

◆ alloc_file_descriptor()

◆ block_logical_size_bytes()

◆ block_physical_size_bytes()

◆ blocks()

◆ clear_file_descriptor()

◆ close()

◆ device_prefix()

◆ fcntl()

◆ file_descriptor() [1/2]

◆ file_descriptor() [2/2]

◆ fstat()

◆ get_type()

◆ impl()

◆ ioctl()

◆ is_opened()

◆ isatty()

◆ lseek()

◆ match_name()

◆ name()

◆ open()

◆ read()

◆ read_block()

◆ sync()

◆ vfcntl()

◆ vioctl()

◆ vopen()

◆ write()

◆ write_block()

◆ writev()