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

#include <XrdPfcInfo.hh>

Collaboration diagram for XrdPfc::Info:

Classes
struct	AStat
	Access statistics. More...

struct	Status

struct	Store

Public Member Functions
	Info (XrdSysTrace *trace, bool prefetchBuffer=false)
	Constructor. More...

	~Info ()
	Destructor. More...

void	SetBitWritten (int i)
	Mark block as written to disk. More...

bool	TestBitWritten (int i) const
	Test if block at the given index is written to disk. More...

bool	TestBitPrefetch (int i) const
	Test if block at the given index has been prefetched. More...

void	SetBitPrefetch (int i)
	Mark block as obtained through prefetch. More...

void	SetBitSynced (int i)
	Mark block as synced to disk. More...

void	SetAllBitsSynced ()
	Mark all blocks as synced to disk. More...

void	SetBufferSizeFileSizeAndCreationTime (long long bs, long long fs)

void	ResizeBits ()
	Reserve bit vectors for file_size / buffer_size bytes. More...

bool	Read (XrdOssDF fp, const char dname, const char *fname=0)
	Read content of cinfo file into this object. More...

bool	Write (XrdOssDF fp, const char dname, const char *fname=0)

void	CompactifyAccessRecords ()
	Compactify access records to the configured maximum. More...

void	ResetAllAccessStats ()
	Reset IO Stats. More...

void	WriteIOStatAttach ()
	Write open time in the last entry of access statistics. More...

void	WriteIOStat (Stats &s)
	Write bytes missed, hits, and disk. More...

void	WriteIOStatDetach (Stats &s)
	Write close time together with bytes missed, hits, and disk. More...

void	WriteIOStatSingle (long long bytes_disk)
	Write single open/close time for given bytes read from disk. More...

void	WriteIOStatSingle (long long bytes_disk, time_t att, time_t dtc)
	Write open/close with given time and bytes read from disk. More...

int	CountBlocksNotWrittenInRng (int firstIdx, int lastIdx) const
	Check download status in given block range. More...

int	GetBitvecSizeInBytes () const
	Get size of download-state bit-vector in bytes. More...

int	GetNBlocks () const
	Get number of blocks represented in download-state bit-vector. More...

long long	GetFileSize () const
	Get file size. More...

bool	GetLatestDetachTime (time_t &t) const
	Get latest detach time. More...

const AStat *	GetLastAccessStats () const
	Get latest access stats. More...

long long	GetBufferSize () const
	Get prefetch buffer size. 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...

int	GetLastDownloadedBlock () const
	Get number of the last downloaded block. More...

long long	GetExpectedDataFileSize () const
	Get expected data file size. More...

void	UpdateDownloadCompleteStatus ()
	Update complete status. More...

size_t	GetAccessCnt () const
	Get number of accesses. More...

int	GetVersion ()
	Get version. More...

const Store &	RefStoredData () const
	Get stored data. More...

const std::vector< AStat > &	RefAStats () const

time_t	GetCreationTime () const
	Get file size. More...

uint32_t	CalcCksumStore ()
	Get cksum, MD5 is for backward compatibility with V2 and V3. More...

uint32_t	CalcCksumSyncedAndAStats ()

void	CalcCksumMd5 (unsigned char buff, char digest)

CkSumCheck_e	GetCkSumState () const

const char *	GetCkSumStateAsText () const

bool	IsCkSumCache () const

bool	IsCkSumNet () const

bool	IsCkSumAny () const

bool	IsCkSumBoth () const

void	SetCkSumState (CkSumCheck_e css)

void	DowngradeCkSumState (CkSumCheck_e css_ref)

void	ResetCkSumCache ()

void	ResetCkSumNet ()

bool	HasNoCkSumTime () const

time_t	GetNoCkSumTime () const

time_t	GetNoCkSumTimeForUVKeep () const

void	ResetNoCkSumTime ()

XrdSysTrace *	GetTrace () const

Static Public Attributes
static const char *	m_traceID

static const char *	s_infoExtension

static const size_t	s_infoExtensionLen

static size_t	s_maxNumAccess

static const int	s_defaultVersion

Protected Attributes
XrdSysTrace *	m_trace

Store	m_store

unsigned char *	m_buff_synced
	disk written state vector More...

unsigned char *	m_buff_written
	download state vector More...

unsigned char *	m_buff_prefetch
	prefetch statistics More...

std::vector< AStat >	m_astats
	access records More...

int	m_version

int	m_bitvecSizeInBits
	cached More...

int	m_missingBlocks
	cached, updated in SetBitWritten() More...

bool	m_complete
	cached; if false, set to true when missingBlocks hit zero More...

bool	m_hasPrefetchBuffer
	constains current prefetch score More...

Private Member Functions
unsigned char	cfiBIT (int n) const

bool	ReadV2 (XrdOssDF fp, off_t off, const char dname, const char *fname)

bool	ReadV3 (XrdOssDF fp, off_t off, const char dname, const char *fname)

Private Attributes
XrdCksCalc *	m_cksCalcMd5

Detailed Description

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

Constructor & Destructor Documentation

XrdPfc::Info::Info	(	XrdSysTrace *	trace,
		bool	prefetchBuffer = `false`
	)

Constructor.

XrdPfc::Info::~Info ( )

Destructor.

Member Function Documentation

void XrdPfc::Info::CalcCksumMd5	(	unsigned char *	buff,
		char *	digest
	)

uint32_t XrdPfc::Info::CalcCksumStore ( )

Get cksum, MD5 is for backward compatibility with V2 and V3.

uint32_t XrdPfc::Info::CalcCksumSyncedAndAStats ( )

unsigned char XrdPfc::Info::cfiBIT ( int n ) const

inlineprivate

Referenced by SetBitPrefetch(), SetBitSynced(), SetBitWritten(), TestBitPrefetch(), and TestBitWritten().

void XrdPfc::Info::CompactifyAccessRecords ( )

Compactify access records to the configured maximum.

int XrdPfc::Info::CountBlocksNotWrittenInRng	(	int	firstIdx,
		int	lastIdx
	)		const

inline

Check download status in given block range.

References TestBitWritten().

Referenced by UpdateDownloadCompleteStatus().

void XrdPfc::Info::DowngradeCkSumState ( CkSumCheck_e css_ref )

inline

References XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

size_t XrdPfc::Info::GetAccessCnt ( ) const

inline

Get number of accesses.

References XrdPfc::Info::Store::m_accessCnt, and m_store.

Referenced by XrdPfc::File::GetAccessCnt().

int XrdPfc::Info::GetBitvecSizeInBytes ( ) const

inline

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

References m_bitvecSizeInBits.

Referenced by SetBitPrefetch(), SetBitSynced(), SetBitWritten(), TestBitPrefetch(), and TestBitWritten().

long long XrdPfc::Info::GetBufferSize ( ) const

inline

Get prefetch buffer size.

References XrdPfc::Info::Store::m_buffer_size, and m_store.

Referenced by XrdPfc::File::GetBlockSize().

CkSumCheck_e XrdPfc::Info::GetCkSumState ( ) const

inline

References XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

const char* XrdPfc::Info::GetCkSumStateAsText ( ) const

time_t XrdPfc::Info::GetCreationTime ( ) const

inline

Get file size.

References XrdPfc::Info::Store::m_creationTime, and m_store.

long long XrdPfc::Info::GetExpectedDataFileSize ( ) const

inline

Get expected data file size.

References GetLastDownloadedBlock(), m_bitvecSizeInBits, XrdPfc::Info::Store::m_buffer_size, XrdPfc::Info::Store::m_file_size, and m_store.

long long XrdPfc::Info::GetFileSize ( ) const

inline

Get file size.

References XrdPfc::Info::Store::m_file_size, and m_store.

const AStat* XrdPfc::Info::GetLastAccessStats ( ) const

Get latest access stats.

Referenced by XrdPfc::File::GetLastAccessStats().

int XrdPfc::Info::GetLastDownloadedBlock ( ) const

inline

Get number of the last downloaded block.

References m_bitvecSizeInBits, and TestBitWritten().

Referenced by GetExpectedDataFileSize().

bool XrdPfc::Info::GetLatestDetachTime ( time_t & t ) const

Get latest detach time.

int XrdPfc::Info::GetNBlocks ( ) const

inline

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

References m_bitvecSizeInBits.

Referenced by XrdPfc::File::GetNBlocks().

int XrdPfc::Info::GetNDownloadedBlocks ( ) const

inline

Get number of downloaded blocks.

References m_bitvecSizeInBits, and TestBitWritten().

Referenced by XrdPfc::File::GetNDownloadedBlocks(), and GetNDownloadedBytes().

long long XrdPfc::Info::GetNDownloadedBytes ( ) const

inline

Get number of downloaded bytes.

References GetNDownloadedBlocks(), XrdPfc::Info::Store::m_buffer_size, and m_store.

time_t XrdPfc::Info::GetNoCkSumTime ( ) const

inline

References XrdPfc::Info::Store::m_noCkSumTime, and m_store.

time_t XrdPfc::Info::GetNoCkSumTimeForUVKeep ( ) const

inline

References XrdPfc::Info::Store::m_creationTime, XrdPfc::Info::Store::m_noCkSumTime, and m_store.

XrdSysTrace* XrdPfc::Info::GetTrace ( ) const

inline

References m_trace.

int XrdPfc::Info::GetVersion ( )

inline

Get version.

References m_version.

bool XrdPfc::Info::HasNoCkSumTime ( ) const

inline

References XrdPfc::Info::Store::m_noCkSumTime, and m_store.

bool XrdPfc::Info::IsCkSumAny ( ) const

inline

References XrdPfc::CSChk_Both, XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

bool XrdPfc::Info::IsCkSumBoth ( ) const

inline

References XrdPfc::CSChk_Both, XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

bool XrdPfc::Info::IsCkSumCache ( ) const

inline

References XrdPfc::CSChk_Cache, XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

bool XrdPfc::Info::IsCkSumNet ( ) const

inline

References XrdPfc::CSChk_Net, XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

bool XrdPfc::Info::IsComplete ( ) const

inline

Get complete status.

References m_complete.

bool XrdPfc::Info::Read	(	XrdOssDF *	fp,
		const char *	dname,
		const char *	fname = `0`
	)

Read content of cinfo file into this object.

Parameters

fp	file handle
dname	directory name for trace output
fname	optional file name for trace output (can be included in dname)

Returns: true on success

bool XrdPfc::Info::ReadV2	(	XrdOssDF *	fp,
		off_t	off,
		const char *	dname,
		const char *	fname
	)

private

bool XrdPfc::Info::ReadV3	(	XrdOssDF *	fp,
		off_t	off,
		const char *	dname,
		const char *	fname
	)

private

const std::vector<AStat>& XrdPfc::Info::RefAStats ( ) const

inline

References m_astats.

const Store& XrdPfc::Info::RefStoredData ( ) const

inline

Get stored data.

References m_store.

void XrdPfc::Info::ResetAllAccessStats ( )

Reset IO Stats.

void XrdPfc::Info::ResetCkSumCache ( )

void XrdPfc::Info::ResetCkSumNet ( )

void XrdPfc::Info::ResetNoCkSumTime ( )

inline

References XrdPfc::Info::Store::m_noCkSumTime, and m_store.

void XrdPfc::Info::ResizeBits ( )

Reserve bit vectors for file_size / buffer_size bytes.

void XrdPfc::Info::SetAllBitsSynced ( )

Mark all blocks as synced to disk.

void XrdPfc::Info::SetBitPrefetch ( int i )

inline

Mark block as obtained through prefetch.

References cfiBIT(), GetBitvecSizeInBytes(), and m_buff_prefetch.

void XrdPfc::Info::SetBitSynced ( int i )

inline

Mark block as synced to disk.

References cfiBIT(), GetBitvecSizeInBytes(), and m_buff_synced.

void XrdPfc::Info::SetBitWritten ( int i )

inline

Mark block as written to disk.

References cfiBIT(), GetBitvecSizeInBytes(), m_buff_written, m_complete, and m_missingBlocks.

void XrdPfc::Info::SetBufferSizeFileSizeAndCreationTime	(	long long	bs,
		long long	fs
	)

void XrdPfc::Info::SetCkSumState ( CkSumCheck_e css )

inline

References XrdPfc::Info::Status::f_cksum_check, XrdPfc::Info::Store::m_status, and m_store.

bool XrdPfc::Info::TestBitPrefetch ( int i ) const

inline

Test if block at the given index has been prefetched.

References cfiBIT(), GetBitvecSizeInBytes(), and m_buff_prefetch.

bool XrdPfc::Info::TestBitWritten ( int i ) const

inline

Test if block at the given index is written to disk.

References cfiBIT(), GetBitvecSizeInBytes(), and m_buff_written.

Referenced by CountBlocksNotWrittenInRng(), GetLastDownloadedBlock(), and GetNDownloadedBlocks().

void XrdPfc::Info::UpdateDownloadCompleteStatus ( )

inline

Update complete status.

References CountBlocksNotWrittenInRng(), m_bitvecSizeInBits, m_complete, and m_missingBlocks.

bool XrdPfc::Info::Write	(	XrdOssDF *	fp,
		const char *	dname,
		const char *	fname = `0`
	)

Write number of blocks and read buffer size

Parameters

fp	file handle
dname	directory name for trace output
fname	optional file name for trace output (can be included in dname)

Returns: true on success

void XrdPfc::Info::WriteIOStat ( Stats & s )

Write bytes missed, hits, and disk.

void XrdPfc::Info::WriteIOStatAttach ( )

Write open time in the last entry of access statistics.

void XrdPfc::Info::WriteIOStatDetach ( Stats & s )

Write close time together with bytes missed, hits, and disk.

void XrdPfc::Info::WriteIOStatSingle ( long long bytes_disk )

Write single open/close time for given bytes read from disk.

void XrdPfc::Info::WriteIOStatSingle	(	long long	bytes_disk,
		time_t	att,
		time_t	dtc
	)

Write open/close with given time and bytes read from disk.

Member Data Documentation

std::vector<AStat> XrdPfc::Info::m_astats

protected

access records

Referenced by RefAStats().

int XrdPfc::Info::m_bitvecSizeInBits

protected

cached

Referenced by GetBitvecSizeInBytes(), GetExpectedDataFileSize(), GetLastDownloadedBlock(), GetNBlocks(), GetNDownloadedBlocks(), and UpdateDownloadCompleteStatus().

unsigned char* XrdPfc::Info::m_buff_prefetch

protected

prefetch statistics

Referenced by SetBitPrefetch(), and TestBitPrefetch().

unsigned char* XrdPfc::Info::m_buff_synced

protected

disk written state vector

Referenced by SetBitSynced().

unsigned char* XrdPfc::Info::m_buff_written

protected

download state vector

Referenced by SetBitWritten(), and TestBitWritten().

XrdCksCalc* XrdPfc::Info::m_cksCalcMd5

private

bool XrdPfc::Info::m_complete

protected

cached; if false, set to true when missingBlocks hit zero

Referenced by IsComplete(), SetBitWritten(), and UpdateDownloadCompleteStatus().

bool XrdPfc::Info::m_hasPrefetchBuffer

protected

constains current prefetch score

int XrdPfc::Info::m_missingBlocks

protected

cached, updated in SetBitWritten()

Referenced by SetBitWritten(), and UpdateDownloadCompleteStatus().

Store XrdPfc::Info::m_store

protected

Referenced by DowngradeCkSumState(), GetAccessCnt(), GetBufferSize(), GetCkSumState(), GetCreationTime(), GetExpectedDataFileSize(), GetFileSize(), GetNDownloadedBytes(), GetNoCkSumTime(), GetNoCkSumTimeForUVKeep(), HasNoCkSumTime(), IsCkSumAny(), IsCkSumBoth(), IsCkSumCache(), IsCkSumNet(), RefStoredData(), ResetNoCkSumTime(), and SetCkSumState().

XrdSysTrace* XrdPfc::Info::m_trace

protected

Referenced by GetTrace().

const char* XrdPfc::Info::m_traceID

static

int XrdPfc::Info::m_version

protected

Referenced by GetVersion().

const int XrdPfc::Info::s_defaultVersion

static

const char* XrdPfc::Info::s_infoExtension

static

const size_t XrdPfc::Info::s_infoExtensionLen

static

size_t XrdPfc::Info::s_maxNumAccess

static

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

XrdPfcInfo.hh

Classes

Public Member Functions

Static Public Attributes

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation