Merge branch 'master' of ssh://deep-ras.srv.lrz.de/git/dcdb

DCDBLib/include/c_api.h

@@ -27,6 +27,7 @@ typedef enum {
   DCDB_C_SENSORNOTFOUND,
   DCDB_C_EMPTYSET,
   DCDB_C_NOTINTEGRABLE,
+  DCDB_C_NOSENSOR,
   DCDB_C_UNKNOWN
 } DCDB_C_RESULT;
 

DCDBLib/src/c_api.cpp

@@ -308,6 +308,10 @@ DCDB_C_RESULT dcdbQuerySumMultipleThreaded(
 {
   unsigned int i;
 
+  if (sensorPublicNameLength == 0) {
+      return DCDB_C_NOSENSOR;
+  }
+
   DCDBTimeStamp startTs(start), endTs(end);
   *result = 0;