A ScanList keeps track of Scannable items. More...

#include <ScanList.h>

Public Member Functions
void	add (Scannable *item, double period)
	Add an item to the scan list. More...

bool	isDueAtAll ()
	Does the scan list contain anyting?

const epicsTime &	getDueTime ()
	When should scan() be called ?

void	remove (Scannable *item)
	Remove an item from the ScanList.

void	scan (const epicsTime &deadline)
	Scan all channels that are due at/before deadline. More...

void	dump ()
	Dump.

Detailed Description

A ScanList keeps track of Scannable items.

It does not spawn new threads, somebody else needs to check when the next scan is due and then invoke scan() in time.

The ScanList is self-protecting against concurrent access, based on the ConcurrentList used to maintain items to scan.

Member Function Documentation

Add an item to the scan list.

Parameters

item	The item to scan
period	The requested scan period in seconds.

void ScanList::scan ( const epicsTime & deadline )

Scan all channels that are due at/before deadline.

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

/home/malitsky/projects/epics-archiver/sourceforge/trunk/ea4-cpp/include/common/engine/ScanList.h