XrdClientReadCache Class Reference

#include <XrdClientReadCache.hh>

Collaboration diagram for XrdClientReadCache:

[legend]

List of all members.

Public Types
enum	{ kRmBlk_LRU = 0, kRmBlk_LeastOffs, kRmBlk_FIFO }
Public Member Functions
	XrdClientReadCache ()
	~XrdClientReadCache ()
long	GetDataIfPresent (const void *buffer, long long begin_offs, long long end_offs, bool PerfCalc, XrdClientIntvList &missingblks, long &outstandingblks)
void	GetInfo (int &size, long long &bytessubmitted, long long &byteshit, long long &misscount, float &missrate, long long &readreqcnt, float &bytesusefulness)
long long	GetTotalByteCount ()
void	PutPlaceholder (long long begin_offs, long long end_offs)
void	PrintPerfCounters ()
void	PrintCache ()
void	SubmitXMessage (XrdClientMessage *xmsg, long long begin_offs, long long end_offs)
bool	SubmitRawData (const void *buffer, long long begin_offs, long long end_offs, bool pinned=false)
void	RemoveItems (bool leavepinned=true)
void	RemoveItems (long long begin_offs, long long end_offs, bool remove_overlapped=false)
void	RemovePlaceholders ()
void	SetSize (int sz)
void	SetBlkRemovalPolicy (int p)
void	UnPinCacheBlk (long long begin_offs, long long end_offs)
void *	FindBlk (long long begin_offs, long long end_offs)
bool	WillFit (long long bc)
Private Member Functions
long long	GetTimestampTick ()
bool	MakeFreeSpace (long long bytes)
bool	RemoveItem ()
bool	RemoveLRUItem ()
bool	RemoveFirstItem ()
void	UpdatePerfCounters ()
int	FindInsertionApprox (long long begin_offs)
int	FindInsertionApprox_rec (int startidx, int endidx, long long begin_offs)
Private Attributes
long long	fBytesHit
long long	fBytesSubmitted
float	fBytesUsefulness
ItemVect	fItems
long long	fMaxCacheSize
long long	fMissCount
float	fMissRate
XrdSysRecMutex	fMutex
long long	fReadsCounter
int	fBlkRemPolicy
long long	fTimestampTickCounter
long long	fTotalByteCount

---

Member Enumeration Documentation

anonymous enum

Enumerator:

kRmBlk_LRU
kRmBlk_LeastOffs
kRmBlk_FIFO

---

Constructor & Destructor Documentation

XrdClientReadCache::XrdClientReadCache

(

)

XrdClientReadCache::~XrdClientReadCache

(

)

---

Member Function Documentation

void* XrdClientReadCache::FindBlk	(	long long	begin_offs,
		long long	end_offs
	)

int XrdClientReadCache::FindInsertionApprox

(

long long

begin_offs

)

[private]

int XrdClientReadCache::FindInsertionApprox_rec	(	int	startidx,
		int	endidx,
		long long	begin_offs
	)			[private]

long XrdClientReadCache::GetDataIfPresent	(	const void *	buffer,
		long long	begin_offs,
		long long	end_offs,
		bool	PerfCalc,
		XrdClientIntvList &	missingblks,
		long &	outstandingblks
	)

void XrdClientReadCache::GetInfo	(	int &	size,
		long long &	bytessubmitted,
		long long &	byteshit,
		long long &	misscount,
		float &	missrate,
		long long &	readreqcnt,
		float &	bytesusefulness
	)

Referenced by XrdClientConn::GetCacheInfo().

long long XrdClientReadCache::GetTimestampTick

(

)

[private]

long long XrdClientReadCache::GetTotalByteCount

(

)

[inline]

References fMutex, and fTotalByteCount.

bool XrdClientReadCache::MakeFreeSpace

(

long long

bytes

)

[private]

void XrdClientReadCache::PrintCache

(

)

Referenced by XrdClientConn::PrintCache().

void XrdClientReadCache::PrintPerfCounters

(

)

[inline]

References fBytesHit, fBytesSubmitted, fBytesUsefulness, fMissCount, fMissRate, fMutex, and fReadsCounter.

void XrdClientReadCache::PutPlaceholder	(	long long	begin_offs,
		long long	end_offs
	)

Referenced by XrdClientConn::SubmitPlaceholderToCache().

bool XrdClientReadCache::RemoveFirstItem

(

)

[private]

bool XrdClientReadCache::RemoveItem

(

)

[private]

void XrdClientReadCache::RemoveItems	(	long long	begin_offs,
		long long	end_offs,
		bool	remove_overlapped = false
	)

void XrdClientReadCache::RemoveItems

(

bool

leavepinned = true

)

Referenced by XrdClientConn::RemoveAllDataFromCache(), and XrdClientConn::RemoveDataFromCache().

bool XrdClientReadCache::RemoveLRUItem

(

)

[private]

void XrdClientReadCache::RemovePlaceholders

(

)

Referenced by XrdClientConn::RemovePlaceholdersFromCache().

void XrdClientReadCache::SetBlkRemovalPolicy

(

int

p

)

[inline]

References fBlkRemPolicy.

Referenced by XrdClientConn::SetCacheRmPolicy().

void XrdClientReadCache::SetSize

(

int

sz

)

[inline]

References fMaxCacheSize.

Referenced by XrdClientConn::SetCacheSize().

bool XrdClientReadCache::SubmitRawData	(	const void *	buffer,
		long long	begin_offs,
		long long	end_offs,
		bool	pinned = false
	)

void XrdClientReadCache::SubmitXMessage	(	XrdClientMessage *	xmsg,
		long long	begin_offs,
		long long	end_offs
	)

void XrdClientReadCache::UnPinCacheBlk	(	long long	begin_offs,
		long long	end_offs
	)

Referenced by XrdClientConn::UnPinCacheBlk().

void XrdClientReadCache::UpdatePerfCounters

(

)

[inline, private]

References fBytesHit, fBytesSubmitted, fBytesUsefulness, fMissCount, fMissRate, and fReadsCounter.

bool XrdClientReadCache::WillFit

(

long long

bc

)

[inline]

References fMaxCacheSize, and fMutex.

Referenced by XrdClientConn::CacheWillFit().

---

Member Data Documentation

int XrdClientReadCache::fBlkRemPolicy [private]

Referenced by SetBlkRemovalPolicy().

long long XrdClientReadCache::fBytesHit [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

long long XrdClientReadCache::fBytesSubmitted [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

float XrdClientReadCache::fBytesUsefulness [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

ItemVect XrdClientReadCache::fItems [private]

long long XrdClientReadCache::fMaxCacheSize [private]

Referenced by SetSize(), and WillFit().

long long XrdClientReadCache::fMissCount [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

float XrdClientReadCache::fMissRate [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

XrdSysRecMutex XrdClientReadCache::fMutex [private]

Referenced by GetTotalByteCount(), PrintPerfCounters(), and WillFit().

long long XrdClientReadCache::fReadsCounter [private]

Referenced by PrintPerfCounters(), and UpdatePerfCounters().

long long XrdClientReadCache::fTimestampTickCounter [private]

long long XrdClientReadCache::fTotalByteCount [private]

Referenced by GetTotalByteCount().

---

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

• XrdClientReadCache.hh