os::legacy_smart_device Class Reference

Implement shared open/close routines with old functions. More...

Collaboration diagram for os::legacy_smart_device:

Public Member Functions
	legacy_smart_device (const char *mode)
virtual	~legacy_smart_device ()
virtual bool	is_open () const override
	Return true if device is open.
virtual bool	open () override
	Open device, return false on error.
virtual bool	close () override
	Close device, return false on error.
Public Member Functions inherited from smart_device
virtual	~smart_device ()
bool	is_ata () const
	Return true if ATA device.
bool	is_scsi () const
	Return true if SCSI device.
bool	is_nvme () const
	Return true if NVMe device.
ata_device *	to_ata ()
	Downcast to ATA device.
const ata_device *	to_ata () const
	Downcast to ATA device (const).
scsi_device *	to_scsi ()
	Downcast to SCSI device.
const scsi_device *	to_scsi () const
	Downcast to SCSI device (const).
nvme_device *	to_nvme ()
	Downcast to NVMe device.
const nvme_device *	to_nvme () const
	Downcast to NVMe device (const).
const device_info &	get_info () const
	Get device info struct.
const char *	get_dev_name () const
	Get device (path)name.
const char *	get_info_name () const
	Get informal name.
const char *	get_dev_type () const
	Get device type.
const char *	get_req_type () const
	Get type requested by user, empty if none.
const error_info &	get_err () const
	Get last error info struct.
int	get_errno () const
	Get last error number.
const char *	get_errmsg () const
	Get last error message.
virtual bool	is_syscall_unsup () const
	Return true if last error indicates an unsupported system call.
bool	set_err (int no, const char *msg,...) __attribute_format_printf(3
	Set last error number and message.
bool bool	set_err (const error_info &err)
	Set last error info struct.
void	clear_err ()
	Clear last error info.
bool	set_err (int no)
	Set last error number and default message.
virtual bool	is_open () const =0
	Return true if device is open.
virtual bool	open ()=0
	Open device, return false on error.
virtual bool	close ()=0
	Close device, return false on error.
virtual smart_device *	autodetect_open ()
	Open device with autodetection support.
virtual bool	is_powered_down ()
	Early test if device is powered up or down.
virtual bool	owns (const smart_device *dev) const
	Return true if other device is owned by this device.
virtual void	release (const smart_device *dev)
	Release ownership of other device.

Protected Member Functions
int	get_fd () const
	Return filedesc for derived classes.
Protected Member Functions inherited from smart_device
	smart_device (smart_interface *intf, const char *dev_name, const char *dev_type, const char *req_type)
	Constructor to init interface and device info.
	smart_device (do_not_use_in_implementation_classes)
	Dummy constructor for abstract classes.
device_info &	set_info ()
	R/W access to device info struct.
smart_interface *	smi ()
	Get interface which produced this object.
const smart_interface *	smi () const
	Get interface which produced this object (const).

Private Attributes
int	m_fd
	filedesc, -1 if not open.
const char *	m_mode
	Mode string for deviceopen().

Additional Inherited Members
Static Public Member Functions inherited from smart_device
static int	get_num_objects ()
	Get current number of allocated 'smart_device' objects.
Protected Types inherited from smart_device
enum	do_not_use_in_implementation_classes { never_called }
	Dummy enum for dummy constructor. More...

Detailed Description

Implement shared open/close routines with old functions.

Definition at line 50 of file dev_legacy.cpp.

Constructor & Destructor Documentation

legacy_smart_device()

os::legacy_smart_device::legacy_smart_device ( const char *  mode )

inlineexplicit

Definition at line 54 of file dev_legacy.cpp.

~legacy_smart_device()

os::legacy_smart_device::~legacy_smart_device ( )

virtual

Definition at line 77 of file dev_legacy.cpp.

Member Function Documentation

close()

bool os::legacy_smart_device::close ( )

overridevirtual

Close device, return false on error.

Implements smart_device.

Definition at line 98 of file dev_legacy.cpp.

get_fd()

int os::legacy_smart_device::get_fd ( ) const

inlineprotected

Return filedesc for derived classes.

Definition at line 68 of file dev_legacy.cpp.

is_open()

bool os::legacy_smart_device::is_open ( ) const

overridevirtual

Return true if device is open.

Implements smart_device.

Definition at line 83 of file dev_legacy.cpp.

open()

bool os::legacy_smart_device::open ( )

overridevirtual

Open device, return false on error.

Implements smart_device.

Definition at line 88 of file dev_legacy.cpp.

Member Data Documentation

m_fd

int os::legacy_smart_device::m_fd

private

filedesc, -1 if not open.

Definition at line 72 of file dev_legacy.cpp.

m_mode

const char* os::legacy_smart_device::m_mode

private

Mode string for deviceopen().

Definition at line 73 of file dev_legacy.cpp.

---

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

• dev_legacy.cpp