dueca::DataTimeSpec Struct Reference

DataTimeSpec is a special bare-bones version of TimeSpec. More...

#include <DataTimeSpec.hxx>

Public Types
typedef DataTimeSpec	__ThisDCOType__
	typedef for internal reference

Public Member Functions
	DataTimeSpec ()
	default constructor.
	DataTimeSpec (const TimeTickType &validity_start, const TimeTickType &validity_end)
	Constructor with arguments.
	DataTimeSpec (const DataTimeSpec &o)
	copy constructor.
	DataTimeSpec (::dueca::AmorphReStore &r)
	constructor to restore an DataTimeSpec from amorphous storage.
	~DataTimeSpec ()
	destructor.
void	packData (::dueca::AmorphStore &s) const
	packs the DataTimeSpec into amorphous storage.
void	packDataDiff (::dueca::AmorphStore &s, const DataTimeSpec &ref) const
	packs the DataTimeSpec into amorphous storage.
void	unPackData (::dueca::AmorphReStore &s)
	unpacks the DataTimeSpec from an amorphous storage.
void	unPackDataDiff (::dueca::AmorphReStore &s)
	unpacks the differences for DataTimeSpec from an amorphous storage.
bool	operator== (const DataTimeSpec &o) const
	Test for equality.
bool	operator!= (const DataTimeSpec &o) const
	Test for inequality.
DataTimeSpec &	operator= (const DataTimeSpec &o)
	Assignment operator.
std::ostream &	print (std::ostream &s) const
	prints the DataTimeSpec to a stream.

Static Public Member Functions
static void *	operator new (size_t size)
	new operator "new", which places objects not on a heap, but in one of the memory arenas.
static void	operator delete (void *p)
	new operator "delete", to go with the new version of operator new.
static void *	operator new (size_t size, DataTimeSpec *&o)
	placement "new", needed for stl.

Public Attributes
TimeTickType	validity_start
	The time interval starts here.
TimeTickType	validity_end
	The time interval ends before this.

Static Public Attributes
static const char *const	classname
	The name of this class.
static const uint32_t	magic_check_number
	a "magic" number, hashed out of the class definition, that will be used to check consistency of the sent objects across the dueca nodes.

Detailed Description

DataTimeSpec is a special bare-bones version of TimeSpec.

It is used for storage of the time specification with the data in channels. The advantage is that DataTimeSpec has no virtual functions and thus no virtual table pointer. This does not only make it smaller, but it also make the DataTimeSpec usable across a reflective/shared memory device where a virtual table pointer would be erroneous in all but one process.

Member Function Documentation

operator new()

static void * dueca::DataTimeSpec::operator new ( size_t size )

static

new operator "new", which places objects not on a heap, but in one of the memory arenas.

This to speed up memory management.

packDataDiff()

void dueca::DataTimeSpec::packDataDiff	(	::dueca::AmorphStore &	s,
		const DataTimeSpec &	ref ) const

packs the DataTimeSpec into amorphous storage.

only differences with a previous object are packed.

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

• /home/abuild/rpmbuild/BUILD/dueca-4.1.3/redhat-linux-build/dueca/DataTimeSpec.hxx