added support for privider ca; many minor changes; note exampleDatabaseEasyPVA.zip changed

src/easyChannel.cpp

@@ -231,6 +231,9 @@ void EasyChannel::issueConnect()
     connectState = connectActive;
     ChannelProviderRegistry::shared_pointer reg = getChannelProviderRegistry();
     ChannelProvider::shared_pointer provider = reg->getProvider(providerName);
+    if(!provider) {
+        throw std::runtime_error(getChannelName() + " provider " + providerName + " not registered");
+    }
     channel = provider->createChannel(channelName,channelRequester,ChannelProvider::PRIORITY_DEFAULT);
     if(!channel) {
          throw std::runtime_error(channelConnectStatus.getMessage());

src/easyNTMultiChannel.h

@@ -24,7 +24,9 @@ class EasyNTMultiChannel;
 typedef std::tr1::shared_ptr<EasyNTMultiChannel> EasyNTMultiChannelPtr;
 
 /**
- * @brief Support for multiple channels where each channel has a value field that is a scalar double.
+ * @brief Support for multiple channels where each channel has a value field that
+ * is a scalar, scalarArray, or enumerated structure.
+ * The data is provided via normativeType NTMultiChannel.
  * If any problems arise an exception is thrown.
  *
  * @author mrk

src/easyPVA.cpp

@@ -14,10 +14,12 @@
 #include <pv/easyPVA.h>
 #include <pv/createRequest.h>
 #include <pv/clientFactory.h>
+#include <pv/caProvider.h>
 
 using std::tr1::static_pointer_cast;
 using namespace epics::pvData;
 using namespace epics::pvAccess;
+using namespace epics::pvAccess::ca;
 using namespace std;
 
 namespace epics { namespace easyPVA { 
@@ -44,7 +46,10 @@ namespace easyPVAPvt {
                  saveFirst = firstTime;
                  firstTime = false;
             }
-            if(saveFirst) ClientFactory::start();
+            if(saveFirst) {
+                ClientFactory::start();
+                CAClientFactory::start();
+            }
         }
     
         static void EasyPVABeingDestroyed() {
@@ -54,7 +59,10 @@ namespace easyPVAPvt {
                  --numberEasyPVA;
                   numLeft = numberEasyPVA;
             }
-            if(numLeft<=0) ClientFactory::stop();
+            if(numLeft<=0) {
+                ClientFactory::stop();
+                CAClientFactory::stop();
+            }
         }
     };
 

src/easyPVA.h

@@ -1565,7 +1565,6 @@ public:
      * @brief Create a EasyMultiChannel.
      * @param channelNames The name. of the channel..
      * @param providerName The name of the provider.
-     * @param u The union interface for each channel.
      * @return The interface to the EasyPVAStructure.
      */
     static EasyMultiChannelPtr create(