[PFW] Take into account base offset when accessing value of parameters

BZ: 88357

This patch aims to offer the possibility of accessing the value of
parameters from a Configuration blackboard instead of Main blackboard.
The read/write operation is now relative to the base offset of the
ancestor element associated to the Configuration.
The base offset is stored in the ParameterAccessContext.

Change-Id: I158df63d2ef3bd8cbacb84b7d2f51723ed1074f5
Signed-off-by: Frédéric Boisnard <fredericx.boisnard@intel.com>
Reviewed-on: http://android.intel.com:8080/93671
Reviewed-by: cactus <cactus@intel.com>
Reviewed-by: Dixon, CharlesX <charlesx.dixon@intel.com>
Tested-by: Dixon, CharlesX <charlesx.dixon@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/parameter/BaseParameter.cpp b/parameter/BaseParameter.cpp
index 7ca96a7..e8b6c90 100644
--- a/parameter/BaseParameter.cpp
+++ b/parameter/BaseParameter.cpp
@@ -171,7 +171,7 @@ bool CBaseParameter::accessAsString(string& strValue, bool bSet, CParameterAcces
     if (bSet) {
 
         // Set Value
-        if (!doSetValue(strValue, getOffset(), parameterAccessContext)) {
+        if (!doSetValue(strValue, getOffset() - parameterAccessContext.getBaseOffset(), parameterAccessContext)) {
 
             // Append parameter path to error
             parameterAccessContext.appendToError(" " + getPath());
@@ -189,7 +189,7 @@ bool CBaseParameter::accessAsString(string& strValue, bool bSet, CParameterAcces
 
     } else {
         // Get Value
-        doGetValue(strValue, getOffset(), parameterAccessContext);
+        doGetValue(strValue, getOffset() - parameterAccessContext.getBaseOffset(), parameterAccessContext);
     }
 
     return true;