libdcdb: fixing de-allocation of Cassandra resources in SensorConfig

lib/src/sensorconfig.cpp

@@ -994,6 +994,7 @@ SCError SensorConfigImpl::getPublicSensorByName(PublicSensor& sensor, const char
         connection->printError(future);
         cass_future_free(future);
         cass_statement_free(statement);
+        cass_prepared_free(prepared);
         return SC_UNKNOWNERROR;
     } else {
         const CassResult* result = cass_future_get_result(future);
@@ -1094,7 +1095,7 @@ SCError SensorConfigImpl::getPublicSensorByName(PublicSensor& sensor, const char
             cass_iterator_free(iterator);
             cass_future_free(future);
             cass_statement_free(statement);
-
+            cass_prepared_free(prepared);
             return SC_UNKNOWNSENSOR;
         }
         cass_result_free(result);
@@ -1226,6 +1227,11 @@ SCError SensorConfigImpl::isVirtual(bool& isVirtual, std::string publicName)
             isVirtual = isVirtual_ ? true : false;
         }
         else {
+            cass_result_free(result);
+            cass_iterator_free(iterator);
+            cass_future_free(future);
+            cass_statement_free(statement);
+            cass_prepared_free(prepared);
             return SC_UNKNOWNSENSOR;
         }
 
@@ -1297,6 +1303,11 @@ SCError SensorConfigImpl::getSensorPattern(std::string& pattern, std::string pub
             pattern = std::string(pattern_cstr, pattern_len);
         }
         else {
+            cass_result_free(result);
+            cass_iterator_free(iterator);
+            cass_future_free(future);
+            cass_statement_free(statement);
+            cass_prepared_free(prepared);
             return SC_UNKNOWNSENSOR;
         }
 
@@ -1447,6 +1458,7 @@ SCError SensorConfigImpl::setSensorScalingFactor(std::string publicName, double
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1470,6 +1482,7 @@ SCError SensorConfigImpl::setSensorScalingFactor(std::string publicName, double
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1493,6 +1506,7 @@ SCError SensorConfigImpl::setSensorUnit(std::string publicName, std::string unit
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1516,6 +1530,7 @@ SCError SensorConfigImpl::setSensorUnit(std::string publicName, std::string unit
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1539,6 +1554,7 @@ SCError SensorConfigImpl::setSensorMask(std::string publicName, uint64_t mask)
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1562,6 +1578,7 @@ SCError SensorConfigImpl::setSensorMask(std::string publicName, uint64_t mask)
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1637,6 +1654,7 @@ SCError SensorConfigImpl::clearOperations(std::string publicName)
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1659,6 +1677,7 @@ SCError SensorConfigImpl::clearOperations(std::string publicName)
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1696,6 +1715,7 @@ SCError SensorConfigImpl::setTimeToLive(std::string publicName, uint64_t ttl)
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1719,6 +1739,7 @@ SCError SensorConfigImpl::setTimeToLive(std::string publicName, uint64_t ttl)
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1759,6 +1780,7 @@ SCError SensorConfigImpl::setVirtualSensorExpression(std::string publicName, std
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1782,6 +1804,7 @@ SCError SensorConfigImpl::setVirtualSensorExpression(std::string publicName, std
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1820,6 +1843,7 @@ SCError SensorConfigImpl::setVirtualSensorTZero(std::string publicName, TimeStam
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1843,6 +1867,7 @@ SCError SensorConfigImpl::setVirtualSensorTZero(std::string publicName, TimeStam
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);
 
@@ -1881,6 +1906,7 @@ SCError SensorConfigImpl::setSensorInterval(std::string publicName, uint64_t int
     rc = cass_future_error_code(future);
     if (rc != CASS_OK) {
         connection->printError(future);
+        cass_future_free(future);
         return SC_UNKNOWNERROR;
     }
 
@@ -1904,6 +1930,7 @@ SCError SensorConfigImpl::setSensorInterval(std::string publicName, uint64_t int
         error = SC_OK;
     }
 
+    cass_future_free(future);
     cass_statement_free(statement);
     cass_prepared_free(prepared);