From f2bbec36efc8646f13aaf6ae50732bad23b1b733 Mon Sep 17 00:00:00 2001
From: Marty Kraimer <mrkraimer@comcast.net>
Date: Mon, 25 Aug 2014 06:23:52 -0400
Subject: [PATCH]  added connectionState

---
 src/nt/ntmultiChannel.cpp      |  5 ++++-
 src/nt/ntmultiChannel.h        | 10 ++++++++--
 test/nt/ntmultiChannelTest.cpp |  4 +++-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/nt/ntmultiChannel.cpp b/src/nt/ntmultiChannel.cpp
index dbeae2c..2eb7a44 100644
--- a/src/nt/ntmultiChannel.cpp
+++ b/src/nt/ntmultiChannel.cpp
@@ -86,7 +86,7 @@ NTMultiChannelBuilder::shared_pointer NTMultiChannelBuilder::addUserTag()
 StructureConstPtr NTMultiChannelBuilder::createStructure()
 {
     StandardFieldPtr standardField = getStandardField();
-    size_t nfields = 2;
+    size_t nfields = 3;
     if(descriptor) ++nfields;
     if(alarm) ++nfields;
     if(timeStamp) ++nfields;
@@ -107,6 +107,8 @@ StructureConstPtr NTMultiChannelBuilder::createStructure()
     }
     names[ind] = "channelName";
     fields[ind++] =  fieldCreate->createScalarArray(pvString);
+    names[ind] = "isConnected";
+    fields[ind++] =  fieldCreate->createScalarArray(pvBoolean);
     if(timeStamp) {
         names[ind] = "timeStamp";
         fields[ind++] = standardField->timeStamp();
@@ -198,6 +200,7 @@ NTMultiChannel::NTMultiChannel(PVStructurePtr const & pvStructure)
   pvAlarm(pvStructure->getSubField<PVStructure>("alarm")),
   pvValue(pvStructure->getSubField<PVUnionArray>("value")),
   pvChannelName(pvStructure->getSubField<PVStringArray>("channelName")),
+  pvIsConnected(pvStructure->getSubField<PVBooleanArray>("isConnected")),
   pvSeverity(pvStructure->getSubField<PVIntArray>("severity")),
   pvStatus(pvStructure->getSubField<PVIntArray>("status")),
   pvMessage(pvStructure->getSubField<PVStringArray>("message")),
diff --git a/src/nt/ntmultiChannel.h b/src/nt/ntmultiChannel.h
index 2fc0455..749077f 100644
--- a/src/nt/ntmultiChannel.h
+++ b/src/nt/ntmultiChannel.h
@@ -94,13 +94,13 @@ namespace detail {
         epics::pvData::StructureConstPtr createStructure();
         /**
          * Create a {@code PVStructure} that represents NTMultiChannel.
-         * This resets this instance state and allows new {@code instance to be created.
+         * This resets this instance state and allows new {@code instance to be created.}
          * @return a new instance of a {@code PVStructure}
          */
         epics::pvData::PVStructurePtr createPVStructure();
         /**
          * Create a {@code NTMultiChannel} instance.
-         * This resets this instance state and allows new {@code instance to be created.
+         * This resets this instance state and allows new {@code instance to be created.}
          * @return a new instance of a {@code NTMultiChannel}
          */
         NTMultiChannelPtr create();
@@ -189,6 +189,11 @@ public:
      * @return PVStringArrayPtr
      */
     epics::pvData::PVStringArrayPtr getChannelName() { return pvChannelName;};
+    /**
+     * Get the connection state of each channel.
+     * @return PVBooleanArrayPtr
+     */
+    epics::pvData::PVBooleanArrayPtr getIsConnected() { return pvIsConnected;};
     /**
      * Get the severity of each channel.
      * @return PVIntArrayPtr which may be null.
@@ -231,6 +236,7 @@ private:
     epics::pvData::PVStructurePtr pvAlarm;
     epics::pvData::PVUnionArrayPtr pvValue;
     epics::pvData::PVStringArrayPtr pvChannelName;
+    epics::pvData::PVBooleanArrayPtr pvIsConnected;
     epics::pvData::PVIntArrayPtr pvSeverity;
     epics::pvData::PVIntArrayPtr pvStatus;
     epics::pvData::PVStringArrayPtr pvMessage;
diff --git a/test/nt/ntmultiChannelTest.cpp b/test/nt/ntmultiChannelTest.cpp
index 885f33b..55d5339 100644
--- a/test/nt/ntmultiChannelTest.cpp
+++ b/test/nt/ntmultiChannelTest.cpp
@@ -4,7 +4,7 @@
  * in file LICENSE that is included with this distribution.
  */
 /*
- * ntnameValueTest.cpp
+ * ntmutiChannelTest.cpp
  *
  *  Created on: 2014.08
  *      Author: Marty Kraimer
@@ -103,6 +103,8 @@ static void test()
     PVIntArrayPtr pvSeverity = multiChannel->getSeverity();
     pvSeverity->replace(freeze(severities));
     if(debug) {cout << *pvStructure << endl;}
+    PVBooleanArrayPtr pvIsConnected = multiChannel->getIsConnected();
+    shared_vector<const boolean> isConnected = pvIsConnected->view();
     multiChannel = builder->
             addValue(unionPtr) ->
             addDescriptor()->