XrdFileCache::Info Class Reference

Status of cached file. Can be read from and written into a binary file. More...

#include <XrdFileCacheInfo.hh>

Classes
struct	AStat

Public Member Functions
	Info (long long bufferSize)
	Constructor. More...
	~Info ()
	Destructor. More...
void	SetBitFetched (int i)
	Mark block as downloaded. More...
void	SetBitWriteCalled (int i)
	Mark block as disk written. More...
void	ResizeBits (int n)
	Reserve buffer for fileSize/bufferSize bytes. More...
int	Read (XrdOssDF *fp)
	Rea load content from cinfo file into this object. More...
void	WriteHeader (XrdOssDF *fp)
	Write number of blocks and prefetch buffer size. More...
void	AppendIOStat (AStat &stat, XrdOssDF *fp)
	Append access time, and cache statistics. More...
bool	IsAnythingEmptyInRng (int firstIdx, int lastIdx) const
	Check download status in given block range. More...
int	GetSizeInBytes () const
	Get size of download-state bit-vector in bytes. More...
int	GetSizeInBits () const
	Get number of blocks represented in download-state bit-vector. More...
int	GetHeaderSize () const
	Get header size. More...
bool	GetLatestDetachTime (time_t &t, XrdOssDF *fp) const
	Get latest detach time. More...
long long	GetBufferSize () const
	Get prefetch buffer size. More...
bool	TestBit (int i) const
	Test if block at the given index is downlaoded. More...
bool	IsComplete () const
	Get complete status. More...
int	GetNDownloadedBlocks () const
	Get number of downloaded blocks. More...
long long	GetNDownloadedBytes () const
	Get number of downloaded bytes. More...
void	CheckComplete ()
	Update complete status. More...
int	GetAccessCnt ()
	Get number of accesses. More...
int	GetVersion ()
	Get version. More...

Static Public Attributes
static const char *	m_infoExtension

Protected Member Functions
XrdCl::Log *	clLog () const

Protected Attributes
int	m_version
	Cache statistics and time of access. More...
long long	m_bufferSize
	prefetch buffer size More...
int	m_sizeInBits
	number of file blocks More...
unsigned char *	m_buff_fetched
	download state vector More...
unsigned char *	m_buff_write_called
	disk written state vector More...
int	m_accessCnt
	number of written AStat structs More...
bool	m_complete
	cached More...

Static Private Member Functions
static unsigned char	cfiBIT (int n)

Detailed Description

Status of cached file. Can be read from and written into a binary file.

Constructor & Destructor Documentation

XrdFileCache::Info::Info

(

long long

bufferSize

)

Constructor.

XrdFileCache::Info::~Info

(

)

Destructor.

Member Function Documentation

void XrdFileCache::Info::AppendIOStat	(	AStat &	stat,
		XrdOssDF *	fp
	)

Append access time, and cache statistics.

static unsigned char XrdFileCache::Info::cfiBIT ( int  n )

inlinestaticprivate

Referenced by SetBitFetched(), SetBitWriteCalled(), and TestBit().

void XrdFileCache::Info::CheckComplete ( )

inline

Update complete status.

References IsAnythingEmptyInRng(), m_complete, and m_sizeInBits.

XrdCl::Log* XrdFileCache::Info::clLog ( ) const

inlineprotected

References XrdCl::DefaultEnv::GetLog().

int XrdFileCache::Info::GetAccessCnt ( )

inline

Get number of accesses.

References m_accessCnt.

long long XrdFileCache::Info::GetBufferSize ( ) const

inline

Get prefetch buffer size.

References m_bufferSize.

int XrdFileCache::Info::GetHeaderSize

(

)

const

Get header size.

bool XrdFileCache::Info::GetLatestDetachTime	(	time_t &	t,
		XrdOssDF *	fp
	)		const

Get latest detach time.

int XrdFileCache::Info::GetNDownloadedBlocks ( ) const

inline

Get number of downloaded blocks.

References m_sizeInBits, and TestBit().

Referenced by GetNDownloadedBytes().

long long XrdFileCache::Info::GetNDownloadedBytes ( ) const

inline

Get number of downloaded bytes.

References GetNDownloadedBlocks(), and m_bufferSize.

int XrdFileCache::Info::GetSizeInBits ( ) const

inline

Get number of blocks represented in download-state bit-vector.

References m_sizeInBits.

int XrdFileCache::Info::GetSizeInBytes ( ) const

inline

Get size of download-state bit-vector in bytes.

References m_sizeInBits.

Referenced by SetBitFetched(), SetBitWriteCalled(), and TestBit().

int XrdFileCache::Info::GetVersion ( )

inline

Get version.

References m_version.

bool XrdFileCache::Info::IsAnythingEmptyInRng ( int  firstIdx, int  lastIdx  ) const

inline

Check download status in given block range.

References TestBit().

Referenced by CheckComplete().

bool XrdFileCache::Info::IsComplete ( ) const

inline

Get complete status.

References m_complete.

int XrdFileCache::Info::Read

(

XrdOssDF *

fp

)

Rea load content from cinfo file into this object.

Parameters

fp	file handle

Returns

number of bytes read

void XrdFileCache::Info::ResizeBits

(

int

n

)

Reserve buffer for fileSize/bufferSize bytes.

Parameters

n	number of file blocks

void XrdFileCache::Info::SetBitFetched ( int  i )

inline

Mark block as downloaded.

Parameters

i	block index

References cfiBIT(), GetSizeInBytes(), and m_buff_fetched.

void XrdFileCache::Info::SetBitWriteCalled ( int  i )

inline

Mark block as disk written.

Parameters

i	block index

References cfiBIT(), GetSizeInBytes(), and m_buff_write_called.

bool XrdFileCache::Info::TestBit ( int  i ) const

inline

Test if block at the given index is downlaoded.

References cfiBIT(), GetSizeInBytes(), and m_buff_fetched.

Referenced by GetNDownloadedBlocks(), and IsAnythingEmptyInRng().

void XrdFileCache::Info::WriteHeader

(

XrdOssDF *

fp

)

Write number of blocks and prefetch buffer size.

Member Data Documentation

int XrdFileCache::Info::m_accessCnt

protected

number of written AStat structs

Referenced by GetAccessCnt().

unsigned char* XrdFileCache::Info::m_buff_fetched

protected

download state vector

Referenced by SetBitFetched(), and TestBit().

unsigned char* XrdFileCache::Info::m_buff_write_called

protected

disk written state vector

Referenced by SetBitWriteCalled().

long long XrdFileCache::Info::m_bufferSize

protected

prefetch buffer size

Referenced by GetBufferSize(), and GetNDownloadedBytes().

bool XrdFileCache::Info::m_complete

protected

cached

Referenced by CheckComplete(), and IsComplete().

const char* XrdFileCache::Info::m_infoExtension

static

int XrdFileCache::Info::m_sizeInBits

protected

number of file blocks

Referenced by CheckComplete(), GetNDownloadedBlocks(), GetSizeInBits(), and GetSizeInBytes().

int XrdFileCache::Info::m_version

protected

Cache statistics and time of access.

info version

Referenced by GetVersion().

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

• XrdFileCacheInfo.hh