added userTag

src/nt/ntmultiChannel.cpp

@@ -77,6 +77,12 @@ NTMultiChannelBuilder::shared_pointer NTMultiChannelBuilder::addNanoseconds()
     return shared_from_this();
 }
 
+NTMultiChannelBuilder::shared_pointer NTMultiChannelBuilder::addUserTag()
+{
+    userTag = true;
+    return shared_from_this();
+}
+
 StructureConstPtr NTMultiChannelBuilder::createStructure()
 {
     StandardFieldPtr standardField = getStandardField();
@@ -89,6 +95,7 @@ StructureConstPtr NTMultiChannelBuilder::createStructure()
     if(message) ++nfields;
     if(secondsPastEpoch) ++nfields;
     if(nanoseconds) ++nfields;
+    if(userTag) ++nfields;
     FieldConstPtrArray fields(nfields);
     StringArray names(nfields);
     size_t ind = 0;
@@ -132,6 +139,10 @@ StructureConstPtr NTMultiChannelBuilder::createStructure()
         names[ind] = "nanoseconds";
         fields[ind++] = fieldCreate->createScalarArray(pvInt);
     }
+    if(userTag) {
+        names[ind] = "userTag";
+        fields[ind++] = fieldCreate->createScalarArray(pvInt);
+    }
     StructureConstPtr st = fieldCreate->createStructure(NTMultiChannel::URI,names,fields);
     reset();
     return st;

src/nt/ntmultiChannel.h

@@ -81,6 +81,11 @@ namespace detail {
          * @return this instance of a {@code NTMultiChannelBuilder}.
          */
         shared_pointer addNanoseconds();
+        /**
+         * Add userTag array to the NTMultiChannel.
+         * @return this instance of a {@code NTMultiChannelBuilder}.
+         */
+        shared_pointer addUserTag();
         /**
          * Create a {@code Structure} that represents NTMultiChannel.
          * This resets this instance state and allows new instance to be created.
@@ -114,6 +119,7 @@ namespace detail {
         bool message;
         bool secondsPastEpoch;
         bool nanoseconds;
+        bool userTag;
 
         friend class ::epics::nt::NTMultiChannel;
     };
@@ -199,15 +205,20 @@ public:
      */
     epics::pvData::PVStringArrayPtr getMessage() {return pvMessage;}
     /**
-     * Get the SecondsPastEpoch of each channel.
+     * Get the secondsPastEpoch of each channel.
      * @return PVLongArrayPtr which may be null.
      */
     epics::pvData::PVLongArrayPtr getSecondsPastEpoch() {return pvSecondsPastEpoch;}
     /**
-     * Get the SecondsPastEpoch of each channel.
+     * Get the nanoseconds of each channel.
      * @return PVIntArrayPtr which may be null.
      */
     epics::pvData::PVIntArrayPtr getNanoseconds() {return pvNanoseconds;}
+    /**
+     * Get the userTag of each channel.
+     * @return PVIntArrayPtr which may be null.
+     */
+    epics::pvData::PVIntArrayPtr getUserTag() {return pvUserTag;}
     /**
      * Get the descriptor.
      * @return PVStringPtr which may be null.
@@ -225,6 +236,7 @@ private:
     epics::pvData::PVStringArrayPtr pvMessage;
     epics::pvData::PVLongArrayPtr pvSecondsPastEpoch;
     epics::pvData::PVIntArrayPtr pvNanoseconds;
+    epics::pvData::PVIntArrayPtr pvUserTag;
     epics::pvData::PVStringPtr pvDescriptor;
     friend class detail::NTMultiChannelBuilder;
 };

test/nt/ntmultiChannelTest.cpp

@@ -113,6 +113,7 @@ static void test()
             addMessage() ->
             addSecondsPastEpoch() ->
             addNanoseconds() ->
+            addUserTag() ->
             create();
     testOk1(multiChannel.get() != 0);
     pvStructure = multiChannel->getPVStructure();