Call method and return function

Add a function that calls a method and returns the response message
without checking for an error. Its up to the user of this function to
check if response.is_method_error() exists and handle accordingly.

Tested:
    Method is called and raw response is returned

Change-Id: I6678a78d8cfb32d2d13dba7cb48719fd26eccebc
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/sdbusplus.hpp b/sdbusplus.hpp
index e977744..eb380cc 100644
--- a/sdbusplus.hpp
+++ b/sdbusplus.hpp
@@ -538,6 +538,27 @@ class SDBusPlus
                     method,
                     std::forward<Args>(args)...);
         }
+
+        /** @brief Invoke a method and return without checking for error. */
+        template <typename ...Args>
+        static auto callMethodAndReturn(
+            sdbusplus::bus::bus& bus,
+            const std::string& busName,
+            const std::string& path,
+            const std::string& interface,
+            const std::string& method,
+            Args&& ... args)
+        {
+            auto reqMsg = bus.new_method_call(
+                    busName.c_str(),
+                    path.c_str(),
+                    interface.c_str(),
+                    method.c_str());
+            reqMsg.append(std::forward<Args>(args)...);
+            auto respMsg = bus.call(reqMsg);
+
+            return respMsg;
+        }
 };
 
 } // namespace util