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PsnMomeWriterFifo< Type > Class Template Reference

emulate a Fifo over a shared memory whose coherance isn't sequential, on the writer node More...

#include <PsnMomeWriterFifo.h>

Inheritance diagram for PsnMomeWriterFifo< Type >:

[legend]Collaboration diagram for PsnMomeWriterFifo< Type >:

[legend]List of all members.

Public Methods
	PsnMomeWriterFifo (const int, PsnRelaxedMemoryManager *myMemory)
	PsnMomeWriterFifo (void *fifoAddress, const unsigned int size)
virtual	~PsnMomeWriterFifo ()
virtual void	set (const Type &val, const PsDate &date)
	add a value to the fifo
virtual unsigned int	getNumberOfPresentValues (int maxCherche=-1) const
	get the number of values in the fifo
virtual void	setInPlace (const Type &val, const PsDate &date)
	make an allready copied value available for reading
virtual Type &	getNextPlaceHolder ()
	get a reference to the next place that will be used to store a value
virtual void	clear ()
	clear the fifo
virtual void	printDebuggingInformation () const
	printDebuggingInformation print any usefull debugging information
Protected Methods
virtual unsigned int	findFirstValid () const
	find the index of the first valid value
virtual const PsDate &	getOldestDateAfter (const int indice) const
	look for the next valid date after index indice.

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Detailed Description

template<typename Type>
class PsnMomeWriterFifo< Type >

emulate a Fifo over a shared memory whose coherance isn't sequential, on the writer node

Definition at line 25 of file PsnMomeWriterFifo.h.

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Constructor & Destructor Documentation

template<typename Type> PsnMomeWriterFifo< Type >::PsnMomeWriterFifo (  const    int, PsnRelaxedMemoryManager *    myMemory )

Definition at line 51 of file PsnMomeWriterFifo.h. : PsnMomeFifo<Type> (size,myMemory) {

template<typename Type> PsnMomeWriterFifo< Type >::PsnMomeWriterFifo (  void *    fifoAddress, const unsigned int    size )

Definition at line 59 of file PsnMomeWriterFifo.h. : PsnMomeFifo<Type> (fifoAddress,size) {

template<typename Type> PsnMomeWriterFifo< Type >::~PsnMomeWriterFifo (    )  [virtual]

Definition at line 67 of file PsnMomeWriterFifo.h. {

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Member Function Documentation

template<typename Type> void PsnMomeWriterFifo< Type >::clear (    )  [virtual]

clear the fifo Implements PsnMomeFifo< Type >. Definition at line 186 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_dateOfOldestValidValue, and PsnMomeFifo< Type >::_lastValidIndex. { _dateOfOldestValidValue = (*_tab)[_lastValidIndex].dateValeur ; (*_tab)[_lastValidIndex].dateValeur -- ;

template<typename Type> unsigned int PsnMomeWriterFifo< Type >::findFirstValid (    )  const [protected, virtual]

find the index of the first valid value Implements PsnMomeFifo< Type >. Definition at line 176 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_lastValidIndex. Referenced by PsnMomeWriterFifo< Type >::getNumberOfPresentValues(). { #ifdef _DEBUGATTRIBUTSMOME cerr<<"PsnMomeWriterFifo<"<<typeid(Type).name()<<">::"<<this<<"::findFirstValid ()"<<endl; #endif return _lastValidIndex ;

template<typename Type> Type & PsnMomeWriterFifo< Type >::getNextPlaceHolder (    )  [virtual]

get a reference to the next place that will be used to store a value Implements PsnMomeFifo< Type >. Definition at line 116 of file PsnMomeWriterFifo.h. References PsnRelaxedMemoryManager::getWritableQueueIndex(). { return (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].valeur ;

template<typename Type> unsigned int PsnMomeWriterFifo< Type >::getNumberOfPresentValues (  int    maxCherche = -1 )  const [virtual]

get the number of values in the fifo Parameters: lookingFor  the number of values the caller is looking for. If == -1, get all values, otherwise, once lookingFor values are found, that number is returned Implements PsnMomeFifo< Type >. Definition at line 123 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_dateOfOldestValidValue, PsnAbstractFifo< Type >::_fifoSize, and PsnMomeWriterFifo< Type >::findFirstValid(). { #ifdef _DEBUGATTRIBUTSMOME cerr<<"PsnMomeWriterFifo<"<<typeid(Type).name()<<">::"<<this<<"::getNumberOfPresentValues("<<maxCherche<<")"<<endl; #endif unsigned int nbATrouver ; if (maxCherche == -1) { nbATrouver = _fifoSize ; } else { nbATrouver = maxCherche ; } int lookAt = findFirstValid () ; unsigned int nbValidFound = 0 ; unsigned int nbLookedAt = 0 ; while ( ( nbValidFound < nbATrouver ) && ( nbLookedAt < _fifoSize ) ) { if ( (*_tab)[lookAt].dateValeur >= _dateOfOldestValidValue ) nbValidFound++ ; nbLookedAt++ ; if (lookAt != 0 ) { lookAt--; } else { lookAt = _fifoSize -1 ; } } return nbValidFound ;

template<typename Type> const PsDate & PsnMomeWriterFifo< Type >::getOldestDateAfter (  const int    indice )  const [protected, virtual]

look for the next valid date after index indice. It will become the date of the oldest valid value Definition at line 156 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_dateOfOldestValidValue, PsnAbstractFifo< Type >::_fifoSize, PsnMomeFifo< Type >::_tab, and PsDate. Referenced by PsnMomeWriterFifo< Type >::set(), and PsnMomeWriterFifo< Type >::setInPlace(). { //if the assertion isn't valid, the loop might never end assert ((*_tab)[i].dateValeur >= _dateOfOldestValidValue ) ; int lookAt = ( i + 1 ) % _fifoSize ; int nbValidFound = 0 ; if ((*_tab)[lookAt].dateValeur >= _dateOfOldestValidValue ) nbValidFound++ ; while (nbValidFound != 1) { lookAt = ( lookAt + 1 ) % _fifoSize ; if ((*_tab)[lookAt].dateValeur >= _dateOfOldestValidValue ) nbValidFound++ ; } return (*_tab) [lookAt].dateValeur ;

template<typename Type> void PsnMomeWriterFifo< Type >::printDebuggingInformation (    )  const [virtual]

printDebuggingInformation print any usefull debugging information Implements PsnMomeFifo< Type >. Definition at line 194 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::printDebuggingInformation(). { cerr<<" PsnMomeWriterFifo<"<<typeid(Type).name()<<">::"<<this<<"::printDebuggingInformation () "<<endl; PsnMomeFifo<Type>::printDebuggingInformation() ;

template<typename Type> void PsnMomeWriterFifo< Type >::set (  const Type &    val, const PsDate &    date )  [virtual]

add a value to the fifo Implements PsnMomeFifo< Type >. Definition at line 74 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_dateOfOldestValidValue, PsnMomeFifo< Type >::_lastValidIndex, PsnMomeFifo< Type >::_tab, PsnMomeWriterFifo< Type >::getOldestDateAfter(), PsnRelaxedMemoryManager::getWritableQueueIndex(), and PsDate. { #ifdef _DEBUGATTRIBUTSMOME cerr<<"PsnMomeWriterFifo<"<<typeid(Type).name()<<">::"<<this<<"::set("<<val<<", "<<date<<")"<<endl; #endif PsDate & oldDateAtWrittenIndex ((*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].dateValeur) ; // cerr<<"Written at adress : "<<&(*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()] // <<" which is page : "<<PsnSharedMemoryManager::whichSharedMemoryManager(_tab)->globalAddressToLocal(&(*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()])/4096+4096 // <<endl; (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].valeur = val ; //assert (oldDateAtWrittenIndex != date) ; if ( oldDateAtWrittenIndex != date ) {//avoid rechanging (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].dateValeur = date ; _dateOfOldestValidValue = getOldestDateAfter (PsnRelaxedMemoryManager::getWritableQueueIndex()) ; _lastValidIndex = PsnRelaxedMemoryManager::getWritableQueueIndex() ; (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].datePlusVieilleValeurValide = _dateOfOldestValidValue ; } #ifdef _DEBUGATTRIBUTSMOME cerr<<"PsnMomeWriterFifo<"<<typeid(Type).name()<<">::"<<this<<"::set done"<<endl; #endif

template<typename Type> void PsnMomeWriterFifo< Type >::setInPlace (  const Type &    val, const PsDate &    date )  [virtual]

make an allready copied value available for reading Implements PsnMomeFifo< Type >. Definition at line 98 of file PsnMomeWriterFifo.h. References PsnMomeFifo< Type >::_dateOfOldestValidValue, PsnMomeFifo< Type >::_lastValidIndex, PsnMomeFifo< Type >::_tab, PsnMomeWriterFifo< Type >::getOldestDateAfter(), PsnRelaxedMemoryManager::getWritableQueueIndex(), and PsDate. { PsDate & oldDateAtWrittenIndex ((*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].dateValeur) ; assert (&((*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].valeur) == &newValue ) ; if ( oldDateAtWrittenIndex != date ) //avoid rechanging { (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].dateValeur = date ; _dateOfOldestValidValue = getOldestDateAfter (PsnRelaxedMemoryManager::getWritableQueueIndex()) ; _lastValidIndex = PsnRelaxedMemoryManager::getWritableQueueIndex() ; (*_tab)[PsnRelaxedMemoryManager::getWritableQueueIndex()].datePlusVieilleValeurValide = _dateOfOldestValidValue ; }

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

• PsnMomeWriterFifo.h

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