86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/* pvTimeStamp.cpp */
|
|
/**
|
|
* Copyright - See the COPYRIGHT that is included with this distribution.
|
|
* EPICS pvData is distributed subject to a Software License Agreement found
|
|
* in file LICENSE that is included with this distribution.
|
|
*/
|
|
/**
|
|
* @author mrk
|
|
*/
|
|
#include <string>
|
|
#include <stdexcept>
|
|
|
|
#define epicsExportSharedSymbols
|
|
#include <pv/pvType.h>
|
|
#include <pv/timeStamp.h>
|
|
#include <pv/pvData.h>
|
|
#include <pv/pvTimeStamp.h>
|
|
|
|
namespace epics { namespace pvData {
|
|
|
|
using std::tr1::static_pointer_cast;
|
|
|
|
String PVTimeStamp::noTimeStamp("No timeStamp structure found");
|
|
String PVTimeStamp::notAttached("Not attached to a timeStamp structure");
|
|
|
|
bool PVTimeStamp::attach(PVFieldPtr const & pvField)
|
|
{
|
|
if(pvField->getField()->getType()!=structure) {
|
|
pvField->message(noTimeStamp,errorMessage);
|
|
return false;
|
|
}
|
|
PVStructurePtr xxx = static_pointer_cast<PVStructure>(pvField);
|
|
PVStructure* pvStructure = xxx.get();
|
|
while(true) {
|
|
PVLongPtr pvLong = pvStructure->getLongField("secondsPastEpoch");
|
|
if(pvLong.get()!=NULL) {
|
|
pvSecs = pvLong;
|
|
pvNano = pvStructure->getIntField("nanoSeconds");
|
|
pvUserTag = pvStructure->getIntField("userTag");
|
|
}
|
|
if(pvSecs.get()!=NULL
|
|
&& pvNano.get()!=NULL
|
|
&& pvUserTag.get()!=NULL) return true;
|
|
detach();
|
|
// look up the tree for a timeSyamp
|
|
pvStructure = pvStructure->getParent();
|
|
if(pvStructure==NULL) break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void PVTimeStamp::detach()
|
|
{
|
|
pvSecs.reset();
|
|
pvUserTag.reset();
|
|
pvNano.reset();
|
|
}
|
|
|
|
bool PVTimeStamp::isAttached() {
|
|
if(pvSecs.get()==NULL) return false;
|
|
return true;
|
|
}
|
|
|
|
void PVTimeStamp::get(TimeStamp & timeStamp) const
|
|
{
|
|
if(pvSecs.get()==NULL) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
timeStamp.put(pvSecs->get(),pvNano->get());
|
|
timeStamp.setUserTag(pvUserTag->get());
|
|
}
|
|
|
|
bool PVTimeStamp::set(TimeStamp const & timeStamp)
|
|
{
|
|
if(pvSecs.get()==NULL) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
if(pvSecs->isImmutable() || pvNano->isImmutable()) return false;
|
|
pvSecs->put(timeStamp.getSecondsPastEpoch());
|
|
pvUserTag->put(timeStamp.getUserTag());
|
|
pvNano->put(timeStamp.getNanoSeconds());
|
|
return true;
|
|
}
|
|
|
|
}}
|