The following were made to all special pvdbcr modules

1) Much cleaner implementation.
2) pvdbSpecialRegister.dbd is new

src/special/pvdbcrRemoveRecordRegister.cpp

@@ -7,47 +7,123 @@
  * @author mrk
  * @date 2021.03.12
  */
-
-
-/* Author: Marty Kraimer */
-#include <epicsThread.h>
 #include <iocsh.h>
-#include <pv/event.h>
-#include <pv/pvAccess.h>
-#include <pv/serverContext.h>
-#include <pv/pvData.h>
+#include <pv/standardField.h>
+#include <pv/standardPVField.h>
+#include <pv/timeStamp.h>
 #include <pv/pvTimeStamp.h>
-#include <pv/rpcService.h>
+#include <pv/alarm.h>
+#include <pv/pvAlarm.h>
+#include <pv/pvDatabase.h>
+#include <pv/pvaClient.h>
 
-// The following must be the last include for code pvDatabase uses
+// The following must be the last include for code exampleLink uses
 #include <epicsExport.h>
 #define epicsExportSharedSymbols
-#include "pv/pvStructureCopy.h"
-#include "pv/pvDatabase.h"
-#include "pv/pvdbcrRemoveRecord.h"
 
 using namespace epics::pvData;
 using namespace epics::pvAccess;
 using namespace epics::pvDatabase;
+using namespace epics::pvaClient;
 using namespace std;
 
-static const iocshArg testArg0 = { "recordName", iocshArgString };
-static const iocshArg testArg1 = { "asLevel", iocshArgInt };
-static const iocshArg *testArgs[] = {&testArg0,&testArg1};
+class PvdbcrRemoveRecord;
+typedef std::tr1::shared_ptr<PvdbcrRemoveRecord> PvdbcrRemoveRecordPtr;
 
-static const iocshFuncDef pvdbcrRemoveRecordFuncDef = {"pvdbcrRemoveRecord", 2,testArgs};
+
+class epicsShareClass PvdbcrRemoveRecord :
+    public PVRecord
+{
+public:
+    POINTER_DEFINITIONS(PvdbcrRemoveRecord);
+    static PvdbcrRemoveRecordPtr create(
+        std::string const & recordName);
+    virtual bool init();
+    virtual void process();
+private:
+    PvdbcrRemoveRecord(
+        std::string const & recordName,
+        epics::pvData::PVStructurePtr const & pvStructure);
+    epics::pvData::PVStringPtr pvRecordName;
+    epics::pvData::PVStringPtr pvResult;
+};
+
+PvdbcrRemoveRecordPtr PvdbcrRemoveRecord::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);
+    PvdbcrRemoveRecordPtr pvRecord(
+        new PvdbcrRemoveRecord(recordName,pvStructure));
+    if(!pvRecord->init()) pvRecord.reset();
+    return pvRecord;
+}
+
+PvdbcrRemoveRecord::PvdbcrRemoveRecord(
+    std::string const & recordName,
+    epics::pvData::PVStructurePtr const & pvStructure)
+: PVRecord(recordName,pvStructure)
+{
+}
+
+bool PvdbcrRemoveRecord::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 PvdbcrRemoveRecord::process()
+{
+    string name = pvRecordName->get();
+    PVRecordPtr pvRecord = PVDatabase::getMaster()->findRecord(name);
+    if(!pvRecord) {
+        pvResult->put(name + " not found");
+        return;
+    }
+    pvRecord->remove();
+    pvResult->put("success");
+}
+
+static const iocshArg arg0 = { "recordName", iocshArgString };
+static const iocshArg arg1 = { "asLevel", iocshArgInt };
+static const iocshArg arg2 = { "asGroup", iocshArgString };
+static const iocshArg *args[] = {&arg0,&arg1,&arg2};
+
+static const iocshFuncDef pvdbcrRemoveRecordFuncDef = {"pvdbcrRemoveRecord", 3,args};
 
 static void pvdbcrRemoveRecordCallFunc(const iocshArgBuf *args)
 {
-    char *recordName = args[0].sval;
-    if(!recordName) {
-        throw std::runtime_error("pvdbcrRemoveRecordCreate invalid number of arguments");
+    char *sval = args[0].sval;
+    if(!sval) {
+        throw std::runtime_error("pvdbcrRemoveRecord recordName not specified");
     }
+    string recordName = string(sval);
     int asLevel = args[1].ival;
+    string asGroup("DEFAULT");
+    sval = args[2].sval;
+    if(sval) {
+        asGroup = string(sval);
+    }
     PvdbcrRemoveRecordPtr record = PvdbcrRemoveRecord::create(recordName);
     record->setAsLevel(asLevel);
-    bool result = PVDatabase::getMaster()->addRecord(record);
-    if(!result) cout << "recordname" << " not added" << endl;
+    record->setAsGroup(asGroup);
+    PVDatabasePtr master = PVDatabase::getMaster();
+    bool result =  master->addRecord(record);
+    if(!result) cout << "recordname " << recordName << " not added" << endl;
 }
 
 static void pvdbcrRemoveRecordRegister(void)