Files
pvDatabase/src/pv/pvTimestampPlugin.h
2019-06-26 10:47:58 -04:00

102 lines
3.0 KiB
C++

/* pvTimeStampPlugin.h */
/*
* The License for this software can be found in the file LICENSE that is included with the distribution.
*/
#ifndef PVTIMESTAMPPLUGIN_H
#define PVTIMESTAMPPLUGIN_H
#include <string>
#include <map>
#include <pv/lock.h>
#include <pv/pvData.h>
#include <pv/pvPlugin.h>
#include <pv/pvTimeStamp.h>
#include <shareLib.h>
namespace epics { namespace pvCopy{
class PVTimestampPlugin;
class PVTimestampFilter;
typedef std::tr1::shared_ptr<PVTimestampPlugin> PVTimestampPluginPtr;
typedef std::tr1::shared_ptr<PVTimestampFilter> PVTimestampFilterPtr;
/**
* @brief A plugin for a filter that sets a timeStamp to the current time.
*
* @author mrk
* @since date 2017.03.24
*/
class epicsShareClass PVTimestampPlugin : public PVPlugin
{
private:
PVTimestampPlugin();
public:
POINTER_DEFINITIONS(PVTimestampPlugin);
virtual ~PVTimestampPlugin();
/**
* Factory
*/
static void create();
/**
* Create a PVFilter.
* @param requestValue The value part of a name=value request option.
* @param pvCopy The PVCopy to which the PVFilter will be attached.
* @param master The field in the master PVStructure to which the PVFilter will be attached
* @return The PVFilter.
* Null is returned if master or requestValue is not appropriate for the plugin.
*/
virtual PVFilterPtr create(
const std::string & requestValue,
const PVCopyPtr & pvCopy,
const epics::pvData::PVFieldPtr & master);
};
/**
* @brief A filter that sets a timeStamp to/from the current field or pvCopy.
*/
class epicsShareClass PVTimestampFilter : public PVFilter
{
private:
epics::pvData::PVTimeStamp pvTimeStamp;
epics::pvData::TimeStamp timeStamp;
bool current;
bool copy;
epics::pvData::PVFieldPtr master;
PVTimestampFilter(bool current,bool copy,epics::pvData::PVFieldPtr const & pvField);
public:
POINTER_DEFINITIONS(PVTimestampFilter);
virtual ~PVTimestampFilter();
/**
* Create a PVTimestampFilter.
* @param requestValue The value part of a name=value request option.
* @param master The field in the master PVStructure to which the PVFilter will be attached.
* @return The PVFilter.
* A null is returned if master or requestValue is not appropriate for the plugin.
*/
static PVTimestampFilterPtr create(const std::string & requestValue,const epics::pvData::PVFieldPtr & master);
/**
* Perform a filter operation
* @param pvCopy The field in the copy PVStructure.
* @param bitSet A bitSet for copyPVStructure.
* @param toCopy (true,false) means copy (from master to copy,from copy to master)
* @return if filter (modified, did not modify) destination.
* Null is returned if master or requestValue is not appropriate for the plugin.
*/
bool filter(const epics::pvData::PVFieldPtr & pvCopy,const epics::pvData::BitSetPtr & bitSet,bool toCopy);
/**
* Get the filter name.
* @return The name.
*/
std::string getName();
};
}}
#endif /* PVTIMESTAMPPLUGIN_H */