LStoreFile Class Reference

#include <LStoreFile.h>

Inheritance diagram for LStoreFile:

Classes
class	MutexWrapper

Public Member Functions
virtual void	abort (void)
virtual void	close (void)
virtual void	create (const char *name, bool exclusive=false, int perms=0666)
virtual void	create (const std::string &name, bool exclusive=false, int perms=0666)
	LStoreFile (void)
	LStoreFile (void *fd)
	LStoreFile (const char *name, int flags=IOFlags::OpenRead, int perms=0666)
	LStoreFile (const std::string &name, int flags=IOFlags::OpenRead, int perms=0666)
virtual void	open (const char *name, int flags=IOFlags::OpenRead, int perms=0666)
virtual void	open (const std::string &name, int flags=IOFlags::OpenRead, int perms=0666)
virtual IOOffset	position (IOOffset offset, Relative whence=SET)
virtual IOSize	read (void *into, IOSize n)
virtual void	resize (IOOffset size)
virtual IOSize	write (const void *from, IOSize n)
	~LStoreFile (void)
Public Member Functions inherited from Storage
virtual bool	eof (void) const
virtual void	flush (void)
virtual IOOffset	position (void) const
virtual bool	prefetch (const IOPosBuffer *what, IOSize n)
virtual IOSize	read (void *into, IOSize n, IOOffset pos)
IOSize	read (IOBuffer into, IOOffset pos)
virtual IOSize	readv (IOPosBuffer *into, IOSize buffers)
virtual void	rewind (void)
virtual IOOffset	size (void) const
	Storage (void)
virtual IOSize	write (const void *from, IOSize n, IOOffset pos)
IOSize	write (IOBuffer from, IOOffset pos)
virtual IOSize	writev (const IOPosBuffer *from, IOSize buffers)
virtual	~Storage (void)
Public Member Functions inherited from IOInput
int	read (void)
IOSize	read (IOBuffer into)
virtual IOSize	readv (IOBuffer *into, IOSize buffers)
IOSize	xread (IOBuffer into)
IOSize	xread (void *into, IOSize n)
IOSize	xreadv (IOBuffer *into, IOSize buffers)
virtual	~IOInput (void)
	Destruct the stream. A no-op. More...
Public Member Functions inherited from IOOutput
IOSize	write (unsigned char byte)
IOSize	write (IOBuffer from)
virtual IOSize	writev (const IOBuffer *from, IOSize buffers)
IOSize	xwrite (const void *from, IOSize n)
IOSize	xwrite (IOBuffer from)
IOSize	xwritev (const IOBuffer *from, IOSize buffers)
virtual	~IOOutput (void)
	Destruct the stream. A no-op. More...

Static Public Attributes
static pthread_mutex_t	m_dlopen_lock = PTHREAD_MUTEX_INITIALIZER

Private Member Functions
void	closeLibrary ()
void	loadLibrary ()

Private Attributes
bool	m_close
void *	m_fd
bool	m_is_loaded
void *	m_library_handle
std::string	m_name
int32_t(*	redd_close )(void *)
int32_t(*	redd_errno )()
int32_t(*	redd_init )()
int64_t(*	redd_lseek )(void *, int64_t, uint32_t)
void *(*	redd_open )(const char *, int32_t, int32_t)
int64_t(*	redd_read )(void *, char *, int64_t)
const std::string &(*	redd_strerror )()
int32_t(*	redd_term )()
int64_t(*	redd_write )(void *, const char *, int64_t)

Additional Inherited Members
Public Types inherited from Storage
enum	Relative { SET, CURRENT, END }

Detailed Description

Definition at line 8 of file LStoreFile.h.

Constructor & Destructor Documentation

LStoreFile::LStoreFile

(

void

)

Definition at line 18 of file LStoreFile.cc.

LStoreFile::LStoreFile

(

void *

fd

)

Definition at line 37 of file LStoreFile.cc.

LStoreFile::LStoreFile	(	const char *	name,
		int	flags = IOFlags::OpenRead,
		int	perms = 0666
	)

Definition at line 56 of file LStoreFile.cc.

LStoreFile::LStoreFile	(	const std::string &	name,
		int	flags = IOFlags::OpenRead,
		int	perms = 0666
	)

Definition at line 65 of file LStoreFile.cc.

LStoreFile::~LStoreFile

(

void

)

Definition at line 74 of file LStoreFile.cc.

Member Function Documentation

void LStoreFile::abort ( void  )

virtual

Definition at line 278 of file LStoreFile.cc.

void LStoreFile::close ( void  )

virtual

Reimplemented from Storage.

Definition at line 253 of file LStoreFile.cc.

Referenced by lumiQTWidget.ApplicationWindow::fileQuit(), and Vispa.Gui.BoxContentDialog.BoxContentDialog::keyPressEvent().

void LStoreFile::closeLibrary ( )

private

Definition at line 135 of file LStoreFile.cc.

void LStoreFile::create ( const char *  name, bool  exclusive = false, int  perms = 0666  )

virtual

Definition at line 165 of file LStoreFile.cc.

void LStoreFile::create ( const std::string &  name, bool  exclusive = false, int  perms = 0666  )

virtual

Definition at line 176 of file LStoreFile.cc.

void LStoreFile::loadLibrary ( )

private

Definition at line 99 of file LStoreFile.cc.

void LStoreFile::open ( const char *  name, int  flags = IOFlags::OpenRead, int  perms = 0666  )

virtual

Definition at line 193 of file LStoreFile.cc.

void LStoreFile::open ( const std::string &  name, int  flags = IOFlags::OpenRead, int  perms = 0666  )

virtual

Definition at line 187 of file LStoreFile.cc.

IOOffset LStoreFile::position ( IOOffset  offset, Relative  whence = SET  )

virtual

Implements Storage.

Definition at line 326 of file LStoreFile.cc.

Referenced by LStoreStorageMaker::check().

IOSize LStoreFile::read ( void *  into, IOSize  n  )

virtual

Read into into at most n number of bytes.

If this is a blocking stream, the call will block until some data can be read, end of input is reached, or an exception is thrown. For a non-blocking stream the available input is returned. If none is available, an exception is thrown.

Returns

The number of bytes actually read. This is less or equal to the size of the buffer. Zero indicates that the end of the input has been reached: end of file, or remote end closing for a connected channel like a pipe or a socket. Otherwise the value can be less than requested if limited amount of input is currently available for platform or implementation reasons.

Exceptions

In	case of error, a #IOError exception is thrown. This includes the situation where the input stream is in non-blocking mode and no input is currently available (FIXME: make this simpler; clarify which exception).

Implements IOInput.

Definition at line 289 of file LStoreFile.cc.

void LStoreFile::resize ( IOOffset  size )

virtual

Implements Storage.

Definition at line 348 of file LStoreFile.cc.

Referenced by Vispa.Gui.TextDialog.TextDialog::__init__().

IOSize LStoreFile::write ( const void *  from, IOSize  n  )

virtual

Write n bytes of data starting at address from.

Returns

The number of bytes written. Normally this will be n, but can be less, even zero, for example if the stream is non-blocking mode and cannot accept input at this time.

Exceptions

In	case of error, an exception is thrown. However if the stream is in non-blocking mode and cannot accept output, it will not throw an exception – the return value will be less than requested.

Implements IOOutput.

Definition at line 306 of file LStoreFile.cc.

Member Data Documentation

bool LStoreFile::m_close

private

Definition at line 61 of file LStoreFile.h.

pthread_mutex_t LStoreFile::m_dlopen_lock = PTHREAD_MUTEX_INITIALIZER

static

Definition at line 50 of file LStoreFile.h.

void* LStoreFile::m_fd

private

Definition at line 60 of file LStoreFile.h.

bool LStoreFile::m_is_loaded

private

Definition at line 64 of file LStoreFile.h.

void* LStoreFile::m_library_handle

private

Definition at line 63 of file LStoreFile.h.

std::string LStoreFile::m_name

private

Definition at line 62 of file LStoreFile.h.

int32_t(* LStoreFile::redd_close)(void *)

private

Definition at line 71 of file LStoreFile.h.

int32_t(* LStoreFile::redd_errno)()

private

Definition at line 76 of file LStoreFile.h.

int32_t(* LStoreFile::redd_init)()

private

Definition at line 69 of file LStoreFile.h.

int64_t(* LStoreFile::redd_lseek)(void *, int64_t, uint32_t)

private

Definition at line 72 of file LStoreFile.h.

void*(* LStoreFile::redd_open)(const char *, int32_t, int32_t)

private

Definition at line 73 of file LStoreFile.h.

int64_t(* LStoreFile::redd_read)(void *, char *, int64_t)

private

Definition at line 70 of file LStoreFile.h.

const std::string&(* LStoreFile::redd_strerror)()

private

Definition at line 77 of file LStoreFile.h.

int32_t(* LStoreFile::redd_term)()

private

Definition at line 75 of file LStoreFile.h.

int64_t(* LStoreFile::redd_write)(void *, const char *, int64_t)

private

Definition at line 74 of file LStoreFile.h.