Gaudi::IDataConnection Class Reference

ABC describing basic data connection. More...

#include <IIODataManager.h>

Inheritance diagram for Gaudi::IDataConnection:

Collaboration diagram for Gaudi::IDataConnection:

List of all members.

Public Types
enum	IoType { READ = 1<<1, UPDATE = 1<<2, CREATE = 1<<3, RECREATE = (1<<4)+(1<<3) }
	I/O Connection types. More...
enum	IoStatus { BAD_DATA_CONNECTION = 4 }
	Status Code on bad file connection. More...
Public Member Functions
	IDataConnection (const IInterface *own, const std::string &nam)
	Standard constructor.
virtual	~IDataConnection ()
	Standard destructor.
const std::string &	name () const
	Connection name.
void	setFID (const std::string &fid)
	Set file ID.
const std::string &	fid () const
	Access file id.
const std::string &	pfn () const
	Access physical file name.
void	setPFN (const std::string &fn)
	Set physical file name.
void	ageFile ()
	Increase age of I/O source.
void	resetAge ()
	Reset age.
int	age () const
	Access age counter.
const IInterface *	owner () const
	Owner instance.
virtual StatusCode	connectRead ()=0
	Open data stream in read mode.
virtual StatusCode	connectWrite (IoType type)=0
	Open data stream in write mode.
virtual StatusCode	disconnect ()=0
	Release data stream.
virtual bool	isConnected () const =0
	Check if connected to data source.
virtual StatusCode	read (void *const data, size_t len)=0
	Read raw byte buffer from input stream.
virtual StatusCode	write (const void *data, int len)=0
	Write raw byte buffer to output stream.
virtual long long int	seek (long long int where, int origin)=0
	Seek on the file described by ioDesc. Arguments as in seek()
Protected Attributes
std::string	m_name
	Connection name/identifier.
std::string	m_fid
	File ID of the connection.
std::string	m_pfn
	Physical file name of the connection.
int	m_age
	Age counter.
const IInterface *	m_owner
	Owner pointer.

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Detailed Description

ABC describing basic data connection.

Author:

M.Frank

Version:

1.0

Date:

20/10/2007

Definition at line 25 of file IIODataManager.h.

---

Member Enumeration Documentation

enum Gaudi::IDataConnection::IoStatus

Status Code on bad file connection.

Enumerator:

BAD_DATA_CONNECTION

Definition at line 41 of file IIODataManager.h.

{ BAD_DATA_CONNECTION=4 };

enum Gaudi::IDataConnection::IoType

I/O Connection types.

Enumerator:

READ
UPDATE
CREATE
RECREATE

Definition at line 39 of file IIODataManager.h.

{ READ=1<<1,UPDATE=1<<2,CREATE=1<<3,RECREATE=(1<<4)+(1<<3) };

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Constructor & Destructor Documentation

Gaudi::IDataConnection::IDataConnection	(	const IInterface *	own,
		const std::string &	nam
	)		[inline]

Standard constructor.

Definition at line 44 of file IIODataManager.h.

    : m_name(nam), m_owner(own) {}

virtual Gaudi::IDataConnection::~IDataConnection

(

)

[inline, virtual]

Standard destructor.

Definition at line 47 of file IIODataManager.h.

{}

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Member Function Documentation

int Gaudi::IDataConnection::age

(

)

const [inline]

Access age counter.

Definition at line 63 of file IIODataManager.h.

{     return m_age;        }

void Gaudi::IDataConnection::ageFile

(

)

[inline]

Increase age of I/O source.

Definition at line 59 of file IIODataManager.h.

{     ++m_age;             }

virtual StatusCode Gaudi::IDataConnection::connectRead

(

)

[pure virtual]

Open data stream in read mode.

Implemented in Gaudi::RootDataConnection.

virtual StatusCode Gaudi::IDataConnection::connectWrite

(

IoType

type )

[pure virtual]

Open data stream in write mode.

Implemented in Gaudi::RootDataConnection.

virtual StatusCode Gaudi::IDataConnection::disconnect

(

)

[pure virtual]

Release data stream.

Implemented in Gaudi::RootDataConnection.

const std::string& Gaudi::IDataConnection::fid

(

)

const [inline]

Access file id.

Definition at line 53 of file IIODataManager.h.

{     return m_fid;        }

virtual bool Gaudi::IDataConnection::isConnected

(

)

const [pure virtual]

Check if connected to data source.

Implemented in Gaudi::RootDataConnection.

const std::string& Gaudi::IDataConnection::name

(

)

const [inline]

Connection name.

Definition at line 49 of file IIODataManager.h.

{     return m_name;       }

const IInterface* Gaudi::IDataConnection::owner

(

)

const [inline]

Owner instance.

Definition at line 65 of file IIODataManager.h.

{     return m_owner;      }

const std::string& Gaudi::IDataConnection::pfn

(

)

const [inline]

Access physical file name.

Definition at line 55 of file IIODataManager.h.

{     return m_pfn;        }

virtual StatusCode Gaudi::IDataConnection::read	(	void *const	data,
		size_t	len
	)		[pure virtual]

Read raw byte buffer from input stream.

Implemented in Gaudi::RootDataConnection.

void Gaudi::IDataConnection::resetAge

(

)

[inline]

Reset age.

Definition at line 61 of file IIODataManager.h.

{     m_age = 0;           }

virtual long long int Gaudi::IDataConnection::seek	(	long long int	where,
		int	origin
	)		[pure virtual]

Seek on the file described by ioDesc. Arguments as in seek()

Implemented in Gaudi::RootDataConnection.

void Gaudi::IDataConnection::setFID

(

const std::string &

fid )

[inline]

Set file ID.

Definition at line 51 of file IIODataManager.h.

{     m_fid = fid;         }

void Gaudi::IDataConnection::setPFN

(

const std::string &

fn )

[inline]

Set physical file name.

Definition at line 57 of file IIODataManager.h.

{     m_pfn = fn;          }

virtual StatusCode Gaudi::IDataConnection::write	(	const void *	data,
		int	len
	)		[pure virtual]

Write raw byte buffer to output stream.

Implemented in Gaudi::RootDataConnection.

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Member Data Documentation

int Gaudi::IDataConnection::m_age [protected]

Age counter.

Definition at line 34 of file IIODataManager.h.

std::string Gaudi::IDataConnection::m_fid [protected]

File ID of the connection.

Definition at line 30 of file IIODataManager.h.

std::string Gaudi::IDataConnection::m_name [protected]

Connection name/identifier.

Definition at line 28 of file IIODataManager.h.

const IInterface* Gaudi::IDataConnection::m_owner [protected]

Owner pointer.

Definition at line 36 of file IIODataManager.h.

std::string Gaudi::IDataConnection::m_pfn [protected]

Physical file name of the connection.

Definition at line 32 of file IIODataManager.h.

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v23r0/GaudiUtils/GaudiUtils/IIODataManager.h