The following were made to all special pvdbcr modules

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

src/special/pvdbcrTraceRecordRegister.cpp

@@ -7,48 +7,127 @@
  * @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 <iocsh.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/pvdbcrTraceRecord.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 PvdbcrTraceRecord;
+typedef std::tr1::shared_ptr<PvdbcrTraceRecord> PvdbcrTraceRecordPtr;
 
-static const iocshFuncDef pvdbcrTraceRecordFuncDef = {"pvdbcrTraceRecord", 2,testArgs};
+class epicsShareClass PvdbcrTraceRecord :
+    public PVRecord
+{
+public:
+    POINTER_DEFINITIONS(PvdbcrTraceRecord);
+    static PvdbcrTraceRecordPtr create(
+        std::string const & recordName);
+    virtual bool init();
+    virtual void process();
+private:
+    PvdbcrTraceRecord(
+        std::string const & recordName,
+        epics::pvData::PVStructurePtr const & pvStructure);
+    epics::pvData::PVStringPtr pvRecordName;
+    epics::pvData::PVIntPtr pvLevel;
+    epics::pvData::PVStringPtr pvResult;
+}; 
+
+PvdbcrTraceRecordPtr PvdbcrTraceRecord::create(
+    std::string const & recordName)
+{
+    FieldCreatePtr fieldCreate = getFieldCreate();
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+    StructureConstPtr  topStructure = fieldCreate->createFieldBuilder()->
+        addNestedStructure("argument")->
+            add("recordName",pvString)->
+            add("level",pvInt)->
+            endNested()->
+        addNestedStructure("result") ->
+            add("status",pvString) ->
+            endNested()->
+        createStructure();
+    PVStructurePtr pvStructure = pvDataCreate->createPVStructure(topStructure);
+    PvdbcrTraceRecordPtr pvRecord(
+        new PvdbcrTraceRecord(recordName,pvStructure));
+    if(!pvRecord->init()) pvRecord.reset();
+    return pvRecord;
+}
+
+PvdbcrTraceRecord::PvdbcrTraceRecord(
+    std::string const & recordName,
+    epics::pvData::PVStructurePtr const & pvStructure)
+: PVRecord(recordName,pvStructure)
+{
+}
+
+
+bool PvdbcrTraceRecord::init()
+{
+    initPVRecord();
+    PVStructurePtr pvStructure = getPVStructure();
+    pvRecordName = pvStructure->getSubField<PVString>("argument.recordName");
+    if(!pvRecordName) return false;
+    pvLevel = pvStructure->getSubField<PVInt>("argument.level");
+    if(!pvLevel) return false;
+    pvResult = pvStructure->getSubField<PVString>("result.status");
+    if(!pvResult) return false;
+    return true;
+}
+
+void PvdbcrTraceRecord::process()
+{
+    string name = pvRecordName->get();
+    PVRecordPtr pvRecord = PVDatabase::getMaster()->findRecord(name);
+    if(!pvRecord) {
+        pvResult->put(name + " not found");
+        return;
+    }
+    pvRecord->setTraceLevel(pvLevel->get());
+    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 pvdbcrTraceRecordFuncDef = {"pvdbcrTraceRecord", 3,args};
 
 static void pvdbcrTraceRecordCallFunc(const iocshArgBuf *args)
 {
-    char *recordName = args[0].sval;
-    if(!recordName) {
-        throw std::runtime_error("traceRecordCreate invalid number of arguments");
+    char *sval = args[0].sval;
+    if(!sval) {
+        throw std::runtime_error("pvdbcrTraceRecord recordName not specified");
+    }
+    string recordName = string(sval);
+    int asLevel = args[1].ival;
+    string asGroup("DEFAULT");
+    sval = args[2].sval;
+    if(sval) {
+        asGroup = string(sval);
     }
-    int asLevel = args[1].ival; 
     PvdbcrTraceRecordPtr record = PvdbcrTraceRecord::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 pvdbcrTraceRecordRegister(void)