removeRecord.cpp

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/* removeRecord.cpp */
#include <string>
#include <cstring>
#include <stdexcept>
#include <memory>
#include <set>

#include <pv/lock.h>
#include <pv/pvType.h>
#include <pv/pvData.h>
#include <pv/pvTimeStamp.h>
#include <pv/timeStamp.h>
#include <pv/rpcService.h>
#include <pv/pvAccess.h>
#include <pv/status.h>
#include <pv/serverContext.h>


#define epicsExportSharedSymbols
#include "pv/pvStructureCopy.h"
#include "pv/pvDatabase.h"
#include "pv/removeRecord.h"

using std::tr1::static_pointer_cast;
using namespace epics::pvData;
using namespace epics::pvAccess;
using namespace std;

namespace epics { namespace pvDatabase {

RemoveRecordPtr RemoveRecord::create(
    std::string const & recordName)
{
    FieldCreatePtr fieldCreate = getFieldCreate();
    PVDataCreatePtr pvDataCreate = getPVDataCreate();
    StructureConstPtr  topStructure = fieldCreate->createFieldBuilder()->
        addNestedStructure("argument")->
            add("recordName",pvString)->
            endNested()->
        addNestedStructure("result") ->
            add("status",pvString) ->
            endNested()->
        createStructure();
    PVStructurePtr pvStructure = pvDataCreate->createPVStructure(topStructure);
    RemoveRecordPtr pvRecord(
        new RemoveRecord(recordName,pvStructure));
    if(!pvRecord->init()) pvRecord.reset();
    return pvRecord;
}

RemoveRecord::RemoveRecord(
    std::string const & recordName,
    epics::pvData::PVStructurePtr const & pvStructure)
: PVRecord(recordName,pvStructure)
{
}

bool RemoveRecord::init()
{
    initPVRecord();
    PVStructurePtr pvStructure = getPVStructure();
    pvRecordName = pvStructure->getSubField<PVString>("argument.recordName");
    if(!pvRecordName) return false;
    pvResult = pvStructure->getSubField<PVString>("result.status");
    if(!pvResult) return false;
    return true;
}

void RemoveRecord::process()
{
    string name = pvRecordName->get();
    PVRecordPtr pvRecord = PVDatabase::getMaster()->findRecord(name);
    if(!pvRecord) {
        pvResult->put(name + " not found");
        return;
    }
    pvRecord->remove();
    pvResult->put("success");
}


}}