rpcClient fixed

testApp/remote/Makefile

@@ -81,6 +81,10 @@ PROD_HOST += rpcServiceExample
 rpcServiceExample_SRCS += rpcServiceExample.cpp
 rpcServiceExample_LIBS += pvAccess pvData pvMB Com
 
+PROD_HOST += rpcClientExample
+rpcClientExample_SRCS += rpcClientExample.cpp
+rpcClientExample_LIBS += pvAccess pvData pvMB Com
+
 TESTSCRIPTS_HOST += $(TESTS:%=%.t)
 
 include $(TOP)/configure/RULES

testApp/remote/rpcClientExample.cpp

@@ -0,0 +1,40 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * pvAccessCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+
+#include <pv/pvData.h>
+#include <pv/rpcClient.h>
+
+using namespace epics::pvData;
+using namespace epics::pvAccess;
+
+static StructureConstPtr requestStructure = 
+    getFieldCreate()->createFieldBuilder()->
+                    add("a", pvString)->
+                    add("b", pvString)->
+                    createStructure();
+
+#define TIMEOUT 3.0
+
+int main()
+{
+    PVStructure::shared_pointer request = getPVDataCreate()->createPVStructure(requestStructure);
+    request->getSubField<PVString>("a")->put("3.14");
+    request->getSubField<PVString>("b")->put("2.71");
+    
+    RPCClient::shared_pointer client = RPCClientFactory::create("sum");
+
+    try
+    {
+        PVStructure::shared_pointer result = client->request(request, TIMEOUT);
+        std::cout << *result << std::endl;
+    } catch (RPCRequestException &e)
+    {
+        std::cout << e.what() << std::endl;
+        return 1;
+    }
+    
+    return 0;
+}

testApp/remote/rpcServiceExample.cpp

@@ -4,26 +4,16 @@
  * in file LICENSE that is included with this distribution.
  */
 
-#include <pv/convert.h>
+#include <pv/pvData.h>
 #include <pv/rpcServer.h>
 
 using namespace epics::pvData;
 using namespace epics::pvAccess;
 
-
-
-static StructureConstPtr createResultField()
-{
-    FieldCreatePtr fieldCreate = getFieldCreate();
-    
-    StringArray fieldNames;
-    fieldNames.push_back("c");
-    FieldConstPtrArray fields;
-    fields.push_back(fieldCreate->createScalar(pvDouble));
-    return fieldCreate->createStructure(fieldNames, fields);
-}
-
-static StructureConstPtr resultStructure = createResultField();
+static StructureConstPtr resultStructure = 
+    getFieldCreate()->createFieldBuilder()->
+                    add("c", pvDouble)->
+                    createStructure();
 
 class SumServiceImpl :
     public RPCService
@@ -31,12 +21,16 @@ class SumServiceImpl :
     PVStructure::shared_pointer request(PVStructure::shared_pointer const & args)
         throw (RPCRequestException)
     {
-        // TODO error handling
-        double a = atof(args->getStringField("a")->get().c_str());
-        double b = atof(args->getStringField("b")->get().c_str());
+        PVString::shared_pointer fa = args->getSubField<PVString>("a");
+        PVString::shared_pointer fb = args->getSubField<PVString>("b");
+        if (!fa || !fb)
+            throw RPCRequestException(Status::STATUSTYPE_ERROR, "'string a' and 'string b' fields required"); 
+
+        double a = atof(fa->get().c_str());
+        double b = atof(fb->get().c_str());
 
         PVStructure::shared_pointer result = getPVDataCreate()->createPVStructure(resultStructure);
-        result->getDoubleField("c")->put(a+b);
+        result->getSubField<PVDouble>("c")->put(a+b);
         return result;
     }
 };