XrdCksManOss Class Reference

#include <XrdCksManOss.hh>

Inheritance diagram for XrdCksManOss:

Collaboration diagram for XrdCksManOss:

Public Member Functions
virtual int	Calc (const char *Lfn, XrdCksData &Cks, int doSet=1)
virtual int	Del (const char *Lfn, XrdCksData &Cks)
virtual int	Get (const char *Lfn, XrdCksData &Cks)
virtual char *	List (const char *Lfn, char *Buff, int Blen, char Sep=' ')
virtual int	Set (const char *Lfn, XrdCksData &Cks, int myTime=0)
virtual int	Ver (const char *Lfn, XrdCksData &Cks)
	XrdCksManOss (XrdOss *ossX, XrdSysError *erP, int iosz, XrdVersionInfo &vInfo, bool autoload=false)
virtual	~XrdCksManOss ()
Public Member Functions inherited from XrdCksManager
virtual int	Config (const char *Token, char *Line)
virtual int	Init (const char *ConfigFN, const char *AddCalc=0)
virtual const char *	Name (int seqNum=0)
virtual XrdCksCalc *	Object (const char *name)
virtual int	Size (const char *Name=0)
	XrdCksManager (XrdSysError *erP, int iosz, XrdVersionInfo &vInfo, bool autoload=false)
virtual	~XrdCksManager ()
Public Member Functions inherited from XrdCks
virtual int	Calc (const char *Xfn, XrdCksData &Cks, XrdCksPCB *pcbP, int doSet=1)
virtual int	Ver (const char *Xfn, XrdCksData &Cks, XrdCksPCB *pcbP)
	XrdCks (XrdSysError *erP)
	Constructor.
virtual	~XrdCks ()
	Destructor.

Protected Member Functions
virtual int	Calc (const char *Lfn, time_t &MTime, XrdCksCalc *CksObj)
virtual int	ModTime (const char *Pfn, time_t &MTime)

Private Attributes
int	buffSZ

Additional Inherited Members
Protected Attributes inherited from XrdCks
XrdSysError *	eDest

Constructor & Destructor Documentation

XrdCksManOss()

XrdCksManOss::XrdCksManOss	(	XrdOss *	ossX,
		XrdSysError *	erP,
		int	iosz,
		XrdVersionInfo &	vInfo,
		bool	autoload = false
	)

~XrdCksManOss()

virtual XrdCksManOss::~XrdCksManOss ( )

inlinevirtual

Member Function Documentation

Calc() [1/2]

virtual int XrdCksManOss::Calc ( const char *  Lfn, time_t &  MTime, XrdCksCalc *  CksObj  )

protectedvirtual

Reimplemented from XrdCksManager.

Calc() [2/2]

virtual int XrdCksManOss::Calc ( const char *  Xfn, XrdCksData &  Cks, int  doSet = 1  )

virtual

Calculate a new checksum for a physical file using the checksum algorithm named in the Cks parameter.

Parameters

Xfn	The logical or physical name of the file to be checksumed.
Cks	For input, it specifies the checksum algorithm to be used. For output, the checksum value is returned upon success.
doSet	When true, the new value must replace any existing value in the Xfn's extended file attributes.
pcbP	In the second form, the pointer to the callback object. A nil pointer does not invoke any callback.

Returns

Success: zero with Cks structure holding the checksum value. Failure: -errno (see significant error numbers below).

Reimplemented from XrdCksManager.

Del()

virtual int XrdCksManOss::Del ( const char *  Xfn, XrdCksData &  Cks  )

virtual

Delete the checksum from the Xfn's xattrs.

Parameters

Xfn	The logical or physical name of the file to be checksumed.
Cks	Specifies the checksum type to delete.

Returns

Success: 0 Failure: -errno (see significant error numbers below).

Reimplemented from XrdCksManager.

Get()

virtual int XrdCksManOss::Get ( const char *  Xfn, XrdCksData &  Cks  )

virtual

Retreive the checksum from the Xfn's xattrs and return it and indicate whether or not it is stale (i.e. the file modification has changed or the name and length are not the expected values).

Parameters

Xfn	The logical or physical name of the file to be checksumed.
Cks	For input, it specifies the checksum type to return. For output, the checksum value is returned upon success.

Returns

Success: The length of the binary checksum in the Cks structure. Failure: -errno (see significant error numbers below).

Reimplemented from XrdCksManager.

List()

virtual char * XrdCksManOss::List ( const char *  Xfn, char *  Buff, int  Blen, char  Sep = ' '  )

virtual

List names of the checksums associated with a Xfn or all supported ones.

Parameters

Xfn	The logical or physical file name whose checksum names are to be returned. When Xfn is null, return all supported checksum algorithm names.
Buff	Points to a buffer, at least 64 bytes in length, to hold a "Sep" separated list of checksum names.
Blen	The length of the buffer.
Sep	The separation character to be used between adjacent names.

Returns

Success: Pointer to Buff holding at least one checksum name. Failure: A nil pointer is returned.

Reimplemented from XrdCksManager.

ModTime()

virtual int XrdCksManOss::ModTime ( const char *  Pfn, time_t &  MTime  )

protectedvirtual

Reimplemented from XrdCksManager.

Set()

virtual int XrdCksManOss::Set ( const char *  Xfn, XrdCksData &  Cks, int  myTime = 0  )

virtual

Set a file's checksum in the extended attributes along with the file's mtime and the time of setting.

Parameters

Xfn	The logical or physical name of the file to be set.
Cks	Specifies the checksum name and value.
myTime	When true then the fmTime and gmTime in the Cks structure are to be used; as opposed to the current time.

Returns

Success: zero is returned. Failure: -errno (see significant error numbers below).

Reimplemented from XrdCksManager.

Ver()

virtual int XrdCksManOss::Ver ( const char *  Xfn, XrdCksData &  Cks  )

virtual

Retreive the checksum from the Xfn's xattrs and compare it to the supplied checksum. If the checksum is not available or is stale, a new checksum is calculated and written to the extended attributes.

Parameters

Xfn	The logical or physical name of the file to be verified.
Cks	Specifies the checksum name and value.
pcbP	In the second form, the pointer to the callback object. A nil pointer does not invoke any callback.

Returns

Success: True Failure: False (the checksums do not match) or -errno indicating that verification could not be performed (see significant error numbers below).

Reimplemented from XrdCksManager.

Member Data Documentation

buffSZ

int XrdCksManOss::buffSZ

private

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

• XrdCksManOss.hh