pool::PersistencySvc::GlobalTransaction Class Reference

GlobalTransaction is an implementation of the ITransaction interface. More...

#include <GlobalTransaction.h>

Inheritance diagram for pool::PersistencySvc::GlobalTransaction:

Collaboration diagram for pool::PersistencySvc::GlobalTransaction:

Public Types
enum	Type { UNDEFINED , READ , UPDATE }
	Transaction type enumeration. More...

Public Member Functions
	GlobalTransaction (DatabaseRegistry &registry)
	Constructor.
virtual	~GlobalTransaction ()
	Destructor.
bool	start (ITransaction::Type type=READ)
	Starts a new transaction. Returns the success of the operation.
bool	commit ()
	Commits the transaction.
bool	commitAndHold ()
	Commits and holds the transaction.
bool	isActive () const
	Checks if the transaction is active.
void	update ()
	Reverts to update mode.
ITransaction::Type	type () const
	Returns the transaction type.
bool	msgLvl (const MSG::Level lvl) const
	Test the output level.
MsgStream &	msg () const
	The standard message stream.
MsgStream &	msg (const MSG::Level lvl) const
	The standard message stream.
void	setLevel (MSG::Level lvl)
	Change the current logging level.

Private Member Functions
void	initMessaging () const
	Initialize our message level and MessageSvc.

Private Attributes
ITransaction::Type	m_type
	The current transaction type.
DatabaseRegistry &	m_databases
	The registered databases.
std::string	m_nm
	Message source name.
boost::thread_specific_ptr< MsgStream >	m_msg_tls
	MsgStream instance (a std::cout like with print-out levels)
std::atomic< IMessageSvc * >	m_imsg { nullptr }
	MessageSvc pointer.
std::atomic< MSG::Level >	m_lvl { MSG::NIL }
	Current logging level.
std::atomic_flag m_initialized	ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT
	Messaging initialized (initMessaging)

Detailed Description

GlobalTransaction is an implementation of the ITransaction interface.

Definition at line 22 of file GlobalTransaction.h.

Member Enumeration Documentation

Type

enum pool::ITransaction::Type

inherited

Transaction type enumeration.

Enumerator
UNDEFINED
READ
UPDATE

Definition at line 26 of file ITransaction.h.

                 { UNDEFINED,
                   READ,
                   UPDATE } Type;

Constructor & Destructor Documentation

GlobalTransaction()

pool::PersistencySvc::GlobalTransaction::GlobalTransaction ( DatabaseRegistry & registry )

explicit

Constructor.

~GlobalTransaction()

virtual pool::PersistencySvc::GlobalTransaction::~GlobalTransaction ( )

virtual

Destructor.

Member Function Documentation

commit()

bool pool::PersistencySvc::GlobalTransaction::commit ( )

virtual

Commits the transaction.

Implements pool::ITransaction.

commitAndHold()

bool pool::PersistencySvc::GlobalTransaction::commitAndHold ( )

virtual

Commits and holds the transaction.

Implements pool::ITransaction.

initMessaging()

void AthMessaging::initMessaging ( ) const

privateinherited

Initialize our message level and MessageSvc.

This method should only be called once.

Definition at line 39 of file AthMessaging.cxx.

{
  m_imsg = Athena::getMessageSvc();
  // If user did not set an explicit level, set a default
  if (m_lvl == MSG::NIL) {
    m_lvl = m_imsg ?
      static_cast<MSG::Level>( m_imsg.load()->outputLevel(m_nm) ) :
      MSG::INFO;
  }
}

isActive()

bool pool::PersistencySvc::GlobalTransaction::isActive ( ) const

virtual

Checks if the transaction is active.

Implements pool::ITransaction.

msg() [1/2]

MsgStream & AthMessaging::msg ( ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 167 of file AthMessaging.h.

{
  MsgStream* ms = m_msg_tls.get();
  if (!ms) {
    if (!m_initialized.test_and_set()) initMessaging();
    ms = new MsgStream(m_imsg,m_nm);
    m_msg_tls.reset( ms );
  }
 
  ms->setLevel (m_lvl);
  return *ms;
}

msg() [2/2]

MsgStream & AthMessaging::msg ( const MSG::Level lvl ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 182 of file AthMessaging.h.

{ return msg() << lvl; }

msgLvl()

bool AthMessaging::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Test the output level.

Parameters

lvl	The message level to test against

Returns

boolean Indicating if messages at given level will be printed

Return values

true	Messages at level "lvl" will be printed

Definition at line 151 of file AthMessaging.h.

{
  // If user did not set explicit message level we have to initialize
  // the messaging and retrieve the default via the MessageSvc.
  if (m_lvl==MSG::NIL && !m_initialized.test_and_set()) initMessaging();
 
  if (m_lvl <= lvl) {
    msg() << lvl;
    return true;
  } else {
    return false;
  }
}

setLevel()

void AthMessaging::setLevel ( MSG::Level lvl )

inherited

Change the current logging level.

Use this rather than msg().setLevel() for proper operation with MT.

Definition at line 28 of file AthMessaging.cxx.

{
  m_lvl = lvl;
}

start()

bool pool::PersistencySvc::GlobalTransaction::start ( ITransaction::Type type = READ )

virtual

Starts a new transaction. Returns the success of the operation.

Implements pool::ITransaction.

type()

ITransaction::Type pool::PersistencySvc::GlobalTransaction::type ( ) const

virtual

Returns the transaction type.

Implements pool::ITransaction.

update()

void pool::PersistencySvc::GlobalTransaction::update ( )

virtual

Reverts to update mode.

Implements pool::ITransaction.

Member Data Documentation

ATLAS_THREAD_SAFE

std::atomic_flag m_initialized AthMessaging::ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT

mutableprivateinherited

Messaging initialized (initMessaging)

Definition at line 141 of file AthMessaging.h.

m_databases

DatabaseRegistry& pool::PersistencySvc::GlobalTransaction::m_databases

private

The registered databases.

Definition at line 53 of file GlobalTransaction.h.

m_imsg

std::atomic<IMessageSvc*> AthMessaging::m_imsg { nullptr }

mutableprivateinherited

MessageSvc pointer.

Definition at line 135 of file AthMessaging.h.

{ nullptr };

m_lvl

std::atomic<MSG::Level> AthMessaging::m_lvl { MSG::NIL }

mutableprivateinherited

Current logging level.

Definition at line 138 of file AthMessaging.h.

{ MSG::NIL };

m_msg_tls

boost::thread_specific_ptr<MsgStream> AthMessaging::m_msg_tls

mutableprivateinherited

MsgStream instance (a std::cout like with print-out levels)

Definition at line 132 of file AthMessaging.h.

m_nm

std::string AthMessaging::m_nm

privateinherited

Message source name.

Definition at line 129 of file AthMessaging.h.

m_type

ITransaction::Type pool::PersistencySvc::GlobalTransaction::m_type

private

The current transaction type.

Definition at line 50 of file GlobalTransaction.h.

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

• GlobalTransaction.h