TDCacheFile Class Reference

#include <TDCacheFile.h>

Inheritance diagram for TDCacheFile:

List of all members.

Public Types
enum	OnErrorAction
Public Member Functions
	TDCacheFile (const char *path, Option_t *option="", const char *ftitle="", Int_t compress=1)
	~TDCacheFile ()
Bool_t	ReadBuffer (char *buf, Int_t len)
Bool_t	ReadBuffer (char *buf, Long64_t pos, Int_t len)
Bool_t	WriteBuffer (const char *buf, Int_t len)
Bool_t	ReadBuffers (char *buf, Long64_t *pos, Int_t *len, Int_t nbuf)
void	ResetErrno () const
Static Public Member Functions
static Bool_t	Stage (const char *path, UInt_t secs, const char *location=0)
static Bool_t	CheckFile (const char *path, const char *location=0)
static void	SetOpenTimeout (UInt_t secs)
static void	SetOnError (OnErrorAction=kOnErrorDefault)
static void	SetReplyHostName (const char *host_name)
static const char *	GetDcapVersion ()
static TString	GetDcapPath (const char *path)
Private Member Functions
	TDCacheFile ()
	(transient) Cached file status buffer (for performance)
Int_t	SysOpen (const char *pathname, Int_t flags, UInt_t mode)
Int_t	SysClose (Int_t fd)
Int_t	SysRead (Int_t fd, void *buf, Int_t len)
Int_t	SysWrite (Int_t fd, const void *buf, Int_t len)
Long64_t	SysSeek (Int_t fd, Long64_t offset, Int_t whence)
Int_t	SysStat (Int_t fd, Long_t *id, Long64_t *size, Long_t *flags, Long_t *modtime)
Int_t	SysSync (Int_t fd)
Private Attributes
Bool_t	fStatCached
stat64	fStatBuffer
	(transient) is file status cached?

---

Detailed Description

Definition at line 42 of file TDCacheFile.h.

---

Member Enumeration Documentation

enum TDCacheFile::OnErrorAction

Definition at line 78 of file TDCacheFile.h.

---

Constructor & Destructor Documentation

TDCacheFile::TDCacheFile

(

)

[inline, private]

(transient) Cached file status buffer (for performance)

Definition at line 48 of file TDCacheFile.h.

TDCacheFile::TDCacheFile	(	const char *	path,
		Option_t *	option = "",
		const char *	ftitle = "",
		Int_t	compress = 1
	)

TDCacheFile::~TDCacheFile

(

)

Definition at line 200 of file TDCacheFile.cxx.

References TFile::Close().

---

Member Function Documentation

Int_t TDCacheFile::SysOpen	(	const char *	pathname,
		Int_t	flags,
		UInt_t	mode
	)			[private, virtual]

Reimplemented from TFile.

Definition at line 410 of file TDCacheFile.cxx.

References gSystem, and TSystem::SetErrorStr().

Int_t TDCacheFile::SysClose

(

Int_t

fd

)

[private, virtual]

Reimplemented from TFile.

Definition at line 434 of file TDCacheFile.cxx.

References gSystem, and TSystem::SetErrorStr().

Int_t TDCacheFile::SysRead	(	Int_t	fd,
		void *	buf,
		Int_t	len
	)			[private, virtual]

Reimplemented from TFile.

Definition at line 451 of file TDCacheFile.cxx.

References gSystem, and TSystem::SetErrorStr().

Int_t TDCacheFile::SysWrite	(	Int_t	fd,
		const void *	buf,
		Int_t	len
	)			[private, virtual]

Reimplemented from TFile.

Definition at line 468 of file TDCacheFile.cxx.

References gSystem, and TSystem::SetErrorStr().

Long64_t TDCacheFile::SysSeek	(	Int_t	fd,
		Long64_t	offset,
		Int_t	whence
	)			[private, virtual]

Reimplemented from TFile.

Definition at line 485 of file TDCacheFile.cxx.

References gSystem, Long64_t, and TSystem::SetErrorStr().

Int_t TDCacheFile::SysStat	(	Int_t	fd,
		Long_t *	id,
		Long64_t *	size,
		Long_t *	flags,
		Long_t *	modtime
	)			[private, virtual]

Reimplemented from TFile.

Definition at line 521 of file TDCacheFile.cxx.

References TString::Data(), TFile::fOption, fStatBuffer, fStatCached, GetDcapPath(), TNamed::GetName(), if(), kTRUE, and stat64().

Int_t TDCacheFile::SysSync

(

Int_t

fd

)

[private, virtual]

Reimplemented from TFile.

Definition at line 502 of file TDCacheFile.cxx.

References gSystem, and TSystem::SetErrorStr().

Bool_t TDCacheFile::ReadBuffer	(	char *	buf,
		Int_t	len
	)			[virtual]

Reimplemented from TFile.

Definition at line 208 of file TDCacheFile.cxx.

References kFALSE, kTRUE, TFile::ReadBuffer(), and TFile::ReadBufferViaCache().

Referenced by ReadBuffers().

Bool_t TDCacheFile::ReadBuffer	(	char *	buf,
		Long64_t	pos,
		Int_t	len
	)			[virtual]

Reimplemented from TFile.

Definition at line 224 of file TDCacheFile.cxx.

References kFALSE, kTRUE, TFile::ReadBuffer(), TFile::ReadBufferViaCache(), and TFile::SetOffset().

Bool_t TDCacheFile::WriteBuffer	(	const char *	buf,
		Int_t	len
	)			[virtual]

Reimplemented from TFile.

Definition at line 320 of file TDCacheFile.cxx.

References TDirectoryFile::fWritable, TFile::IsOpen(), kFALSE, kTRUE, TFile::WriteBuffer(), and TFile::WriteBufferViaCache().

Bool_t TDCacheFile::ReadBuffers	(	char *	buf,
		Long64_t *	pos,
		Int_t *	len,
		Int_t	nbuf
	)			[virtual]

Reimplemented from TFile.

Definition at line 241 of file TDCacheFile.cxx.

References TFile::fArchiveOffset, TFile::fBytesRead, TFile::fCacheRead, TFile::fD, free(), TFile::GetFileBytesRead(), high, i, j, k, kFALSE, kTRUE, Long64_t, low, malloc(), ReadBuffer(), result(), TFile::Seek(), TFile::SetFileBytesRead(), and total.

void TDCacheFile::ResetErrno

(

)

const [virtual]

Reimplemented from TFile.

Definition at line 575 of file TDCacheFile.cxx.

References TSystem::ResetErrno().

Bool_t TDCacheFile::Stage	(	const char *	path,
		UInt_t	secs,
		const char *	location = 0
	)			[static]

Definition at line 338 of file TDCacheFile.cxx.

References TString::Data(), GetDcapPath(), gSystem, kFALSE, kTRUE, and TSystem::SetErrorStr().

Bool_t TDCacheFile::CheckFile	(	const char *	path,
		const char *	location = 0
	)			[static]

Definition at line 357 of file TDCacheFile.cxx.

References TString::Data(), GetDcapPath(), gSystem, kFALSE, kTRUE, and TSystem::SetErrorStr().

void TDCacheFile::SetOpenTimeout

(

UInt_t

secs

)

[static]

Reimplemented from TFile.

Definition at line 378 of file TDCacheFile.cxx.

void TDCacheFile::SetOnError

(

OnErrorAction

= kOnErrorDefault

)

[static]

Definition at line 386 of file TDCacheFile.cxx.

void TDCacheFile::SetReplyHostName

(

const char *

host_name

)

[static]

Definition at line 394 of file TDCacheFile.cxx.

const char * TDCacheFile::GetDcapVersion

(

)

[static]

Definition at line 402 of file TDCacheFile.cxx.

TString TDCacheFile::GetDcapPath

(

const char *

path

)

[static]

Definition at line 584 of file TDCacheFile.cxx.

References DCACHE_PREFIX, DCACHE_PREFIX_LEN, TUrl::GetFile(), TUrl::GetHost(), TUrl::GetProtocol(), and TUrl::GetUrl().

Referenced by TDCacheSystem::AccessPathName(), CheckFile(), TDCacheSystem::GetPathInfo(), TDCacheSystem::MakeDirectory(), TDCacheSystem::OpenDirectory(), Stage(), and SysStat().

---

Member Data Documentation

Bool_t TDCacheFile::fStatCached [private]

Definition at line 45 of file TDCacheFile.h.

Referenced by SysStat().

struct stat64 TDCacheFile::fStatBuffer [private]

(transient) is file status cached?

Definition at line 46 of file TDCacheFile.h.

Referenced by SysStat().

---

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

• io/dcache/inc/TDCacheFile.h
• io/dcache/src/TDCacheFile.cxx

---