RPC cleanup: RPCService is a sub-set of RPCServiceAsync

src/rpcService/rpcService.cpp

@@ -6,3 +6,30 @@
 
 #define epicsExportSharedSymbols
 #include <pv/rpcService.h>
+
+namespace pvd = epics::pvData;
+
+namespace epics{namespace pvAccess{
+
+void RPCService::request(
+        pvd::PVStructure::shared_pointer const & args,
+        RPCResponseCallback::shared_pointer const & callback)
+{
+    assert(callback && args);
+    pvd::PVStructure::shared_pointer ret;
+    pvd::Status sts;
+    try {
+        ret = request(args);
+    }catch(RPCRequestException& e){
+        sts = e.asStatus();
+        throw;
+    }catch(std::exception& e){
+        sts = pvd::Status::error(e.what());
+    }
+    if(!ret) {
+        sts = pvd::Status(pvd::Status::STATUSTYPE_FATAL, "RPCService.request(PVStructure) returned null.");
+    }
+    callback->requestDone(sts, ret);
+}
+
+}} // namespace epics::pvAccess