XrdFileCache::IOEntireFile Class Reference

Downloads original file into a single file on local disk. Handles read requests as they come along. More...

#include <XrdFileCacheIOEntireFile.hh>

Inheritance diagram for XrdFileCache::IOEntireFile:

Collaboration diagram for XrdFileCache::IOEntireFile:

Public Member Functions
	IOEntireFile (XrdOucCacheIO &io, XrdOucCacheStats &stats, Cache &cache)
	Constructor. More...
	~IOEntireFile ()
	Destructor. More...
virtual int	Read (char *Buffer, long long Offset, int Length)
virtual int	ReadV (const XrdOucIOVec *readV, int n)
virtual XrdOucCacheIO *	Detach ()
virtual bool	ioActive ()
	Virtual method of XrdOucCacheIO. Called to check if destruction needs to be done in a separate task. More...
Public Member Functions inherited from XrdFileCache::IO
	IO (XrdOucCacheIO &io, XrdOucCacheStats &stats, Cache &cache)
virtual XrdOucCacheIO *	Base ()
	Original data source. More...
virtual long long	FSize ()
	Original data source URL. More...
virtual const char *	Path ()
	Original data source URL. More...
virtual int	Sync ()
virtual int	Trunc (long long Offset)
virtual int	Write (char *Buffer, long long Offset, int Length)
Public Member Functions inherited from XrdOucCacheIO
virtual void	Preread (long long Offset, int Length, int Opts=0)
virtual void	Preread (aprParms &Parms)
virtual	~XrdOucCacheIO ()

Protected Member Functions
virtual void	StartPrefetch ()
	Run prefetch outside constructor. More...
Protected Member Functions inherited from XrdFileCache::IO
XrdCl::Log *	clLog () const

Private Attributes
Prefetch *	m_prefetch

Additional Inherited Members
Public Attributes inherited from XrdOucCacheIO
XrdOucCacheStats	Statistics
Static Public Attributes inherited from XrdOucCacheIO
static const int	SingleUse = 0x0001
Protected Attributes inherited from XrdFileCache::IO
XrdOucCacheIO &	m_io
	original data source More...
XrdOucCacheStats &	m_statsGlobal
	reference to Cache statistics More...
Cache &	m_cache
	reference to Cache needed in detach More...

Detailed Description

Downloads original file into a single file on local disk. Handles read requests as they come along.

Constructor & Destructor Documentation

XrdFileCache::IOEntireFile::IOEntireFile	(	XrdOucCacheIO &	io,
		XrdOucCacheStats &	stats,
		Cache &	cache
	)

Constructor.

XrdFileCache::IOEntireFile::~IOEntireFile

(

)

Destructor.

Member Function Documentation

virtual XrdOucCacheIO* XrdFileCache::IOEntireFile::Detach ( )

virtual

Detach itself from Cache. Note: this will delete the object.

Returns

original source XrdPosixFile

Reimplemented from XrdOucCacheIO.

virtual bool XrdFileCache::IOEntireFile::ioActive ( )

virtual

Virtual method of XrdOucCacheIO. Called to check if destruction needs to be done in a separate task.

Reimplemented from XrdOucCacheIO.

virtual int XrdFileCache::IOEntireFile::Read ( char *  Buffer, long long  Offset, int  Length  )

virtual

Pass Read request to the corresponding Prefetch object.

Parameters

Buffer
Offset
Length

Returns

number of bytes read

Implements XrdOucCacheIO.

virtual int XrdFileCache::IOEntireFile::ReadV ( const XrdOucIOVec *  readV, int  n  )

virtual

Pass ReadV request to the corresponding Prefetch object.

Parameters

readV
n	number of XrdOucIOVecs

Returns

total bytes read

Reimplemented from XrdOucCacheIO.

virtual void XrdFileCache::IOEntireFile::StartPrefetch ( )

protectedvirtual

Run prefetch outside constructor.

Reimplemented from XrdFileCache::IO.

Member Data Documentation

Prefetch* XrdFileCache::IOEntireFile::m_prefetch

private

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

• XrdFileCacheIOEntireFile.hh