XrdOucChkPnt Class Reference

#include <XrdOucChkPnt.hh>

Inheritance diagram for XrdOucChkPnt:

Collaboration diagram for XrdOucChkPnt:

Public Member Functions
	XrdOucChkPnt ()
	Constructor and destructor. More...
virtual	~XrdOucChkPnt ()
virtual int	Create ()=0
virtual int	Delete ()=0
virtual void	Finished ()=0
virtual int	Query (struct iov &range)=0
virtual int	Restore (bool *readok=0)=0
virtual int	Truncate (struct iov *&range)=0
virtual int	Write (struct iov *&range, int rnum)=0

Detailed Description

Definition at line 40 of file XrdOucChkPnt.hh.

Constructor & Destructor Documentation

XrdOucChkPnt()

XrdOucChkPnt::XrdOucChkPnt ( )

inline

Constructor and destructor.

Definition at line 115 of file XrdOucChkPnt.hh.

{}

~XrdOucChkPnt()

virtual XrdOucChkPnt::~XrdOucChkPnt ( )

inlinevirtual

Definition at line 117 of file XrdOucChkPnt.hh.

{} // Use Finished() not delete!

Member Function Documentation

Create()

virtual int XrdOucChkPnt::Create ( )

pure virtual

Create a checkpoint.

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint().

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Delete()

virtual int XrdOucChkPnt::Delete ( )

pure virtual

Delete a checkpoint.

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint().

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Finished()

virtual void XrdOucChkPnt::Finished ( )

pure virtual

Indicate that the checkpointing is finished. Any outstanding checkpoint should be delete and the object should delete itself if necessary.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint(), and XrdOfsFile::close().

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Query()

virtual int XrdOucChkPnt::Query ( struct iov &  range )

pure virtual

Query checkpoint limits.

Parameters

range

- reference to where limits are placed. range.length - holds maximum checkpoint length allowed.

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint().

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Restore()

virtual int XrdOucChkPnt::Restore ( bool *  readok = 0 )

pure virtual

Restore a checkpoint.

Parameters

readok

- When not nil and an error occurs readok is set true if read access is still allowed; otherwise no access should be allowed.

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint(), and XrdOfsFile::close().

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Truncate()

virtual int XrdOucChkPnt::Truncate ( struct iov *&  range )

pure virtual

Truncate a file to a specific size.

Parameters

range

- reference to the file truncate size in offset.

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint().

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Write()

virtual int XrdOucChkPnt::Write ( struct iov *&  range, int  rnum  )

pure virtual

Write data to a checkpointed file.

Parameters

range	- reference to the file pieces to write.
rnum	- number of elements in "range".

Returns

0 upon success and -errno upon failure.

Implemented in XrdOfsChkPnt.

Referenced by XrdOfsFile::checkpoint().

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

• XrdOucChkPnt.hh