Base class for DataReader access template objects. More...

#include <DataReaderBase.hxx>

Inheritance diagram for dueca::DataReaderBaseAccess:

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Protected Member Functions
const void *	getAccess (DataReaderBase &b, TimeTickType t, DataTimeSpec &ts_data, unsigned int magic)
	Get access to the data valid at a specific time.

const DataTimeSpec &	t_request (DataReaderBase &b)
	Access the DataReaderBase request time.

DataTimeSpec &	ts_data (DataReaderBase &b)
	Access the DataReaderBase data time.

bool &	firstaccess (DataReaderBase &b)
	Access the DataReaderBase access boolean.

void	releaseAccess (ChannelReadToken &token, const void *data_ptr)
	Release the read access again.

void	releaseAccess (DataReaderBase &b, const void *data_ptr)
	Release the read access again, from a base.

void	releaseAccessKeepData (ChannelReadToken &token, const void *data_ptr)
	Release the read access, but keep the current data.

void	selectFirstEntry (DataReaderBase &b)
	Select the first entry in a multi-entry read.

bool	haveEntry (DataReaderBase &b)
	Is there an entry currently.

void	selectNextEntry (DataReaderBase &b)
	Pass to the next entry.

const GlobalId &	getChannelId (DataReaderBase &b)
	Get the id of the channel.

const GlobalId &	getClientId (DataReaderBase &b)
	Get the id of the accessing client.

bool	isSequential (DataReaderBase &b)
	Is reading sequential, or indexed-access.

Detailed Description

Base class for DataReader access template objects.

The DataReader class can access the data in the channel in a variety of ways. A template parameter in this class determines how the data in the channel is found; either joining data from all entries matching the data type, getting data that matches a specific time, etc.

Member Function Documentation

◆ getAccess()

const void * dueca::DataReaderBaseAccess::getAccess	(	DataReaderBase &	b,
		TimeTickType	t,
		DataTimeSpec &	ts_data,
		unsigned int	magic )

inlineprotected

Get access to the data valid at a specific time.

Uses the token of the DataReaderBase class. The token returns the data valid at, or the latest data before the requested time, check the returned time spec for the result.

Parameters

b	Reader base class, for token access.
t	Time for which access is requested.
ts_data	Time span or time point of the returned data.
magic	Datatype magic number, for verification.

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

/home/abuild/rpmbuild/BUILD/dueca-4.1.3/dueca/DataReaderBase.hxx

Protected Member Functions

Detailed Description

Member Function Documentation

◆ getAccess()