Parse last value in background thread

Author: jcoffland

src/cbang/api/handler/TimeseriesHandler.cpp

@@ -169,9 +169,10 @@ void TimeseriesHandler::process() {
       LOG_DEBUG(3, "Last value success=" << (success ? "true" : "false"));
 
       if (success) {
+        SmartPointer<string> s = new string(value);
         SmartPointer<JSON::ValuePtr> last;
 
-        auto run = [=] () {*last = JSON::Reader::parse(value);};
+        auto run = [=] () {*last = JSON::Reader::parse(*s);};
 
         auto done = [=] (bool success) {
           LOG_DEBUG(3, "Parsed last value success="