90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/* pvAlarm.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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/**
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* @author mrk
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*/
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#include <string>
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#include <stdexcept>
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#define epicsExportSharedSymbols
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#include <pv/pvType.h>
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#include <pv/pvIntrospect.h>
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#include <pv/pvData.h>
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#include <pv/pvAlarm.h>
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namespace epics { namespace pvData {
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using std::tr1::static_pointer_cast;
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String PVAlarm::noAlarmFound("No alarm structure found");
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String PVAlarm::notAttached("Not attached to an alarm structure");
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bool PVAlarm::attach(PVFieldPtr const & pvField)
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{
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if(pvField->getField()->getType()!=structure) {
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pvField->message(noAlarmFound,errorMessage);
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return false;
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}
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PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
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pvSeverity = pvStructure->getIntField("severity");
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if(pvSeverity.get()==NULL) {
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pvField->message(noAlarmFound,errorMessage);
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return false;
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}
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pvStatus = pvStructure->getIntField("status");
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if(pvStatus.get()==NULL) {
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pvField->message(noAlarmFound,errorMessage);
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pvSeverity.reset();
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return false;
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}
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pvMessage = pvStructure->getStringField("message");
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if(pvMessage.get()==NULL) {
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pvField->message(noAlarmFound,errorMessage);
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pvSeverity.reset();
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pvStatus.reset();
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return false;
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}
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return true;
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}
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void PVAlarm::detach()
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{
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pvSeverity.reset();
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pvStatus.reset();
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pvMessage.reset();
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}
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bool PVAlarm::isAttached()
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{
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if(pvSeverity.get()==NULL) return false;
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return true;
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}
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void PVAlarm::get(Alarm & alarm) const
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{
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if(pvSeverity.get()==NULL) {
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throw std::logic_error(notAttached);
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}
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alarm.setSeverity(AlarmSeverityFunc::getSeverity(pvSeverity->get()));
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alarm.setStatus(AlarmStatusFunc::getStatus(pvStatus->get()));
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alarm.setMessage(pvMessage->get());
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}
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bool PVAlarm::set(Alarm const & alarm)
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{
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if(pvSeverity.get()==NULL) {
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throw std::logic_error(notAttached);
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}
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if(pvSeverity->isImmutable() || pvMessage->isImmutable()) return false;
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pvSeverity->put(alarm.getSeverity());
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pvStatus->put(alarm.getStatus());
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pvMessage->put(alarm.getMessage());
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return true;
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}
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}}
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