Fixing typos made in comments

[apps/agl-service-can-low-level.git] / low-can-binding / binding / application.cpp

diff --git a/low-can-binding/binding/application.cpp b/low-can-binding/binding/application.cpp
index 8c21017..153821c 100644 (file)
--- a/low-can-binding/binding/application.cpp
+++ b/low-can-binding/binding/application.cpp
@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#include <ctime>
 
 #include "application.hpp"
 
@@ -21,6 +22,9 @@
 #include "../utils/openxc-utils.hpp"
 #include "low-can-socket.hpp"
 
+#define MICROSECONDS_IN_SECOND 1000000
+#define ENGINE_VALUE_TIMEOUT   5
+
 /// @brief Return singleton instance of configuration object.
 application_t& application_t::instance()
 {
@@ -82,3 +86,54 @@ void application_t::set_active_message_set(uint8_t id)
 {
        active_message_set_ = id;
 }
+
+bool application_t::isEngineOn()
+{
+       struct utils::signals_found sf;
+       openxc_DynamicField search_key = build_DynamicField("engine.speed");
+       sf = utils::signals_manager_t::instance().find_signals(search_key);
+       bool engine_on = false;
+       uint64_t last_timestamp_in_s;
+
+       if(sf.can_signals.size() == 1)
+       {
+               last_timestamp_in_s = sf.can_signals.front()->get_last_value_with_timestamp().second
+                                               / MICROSECONDS_IN_SECOND;
+
+               if(sf.can_signals.front()->get_last_value_with_timestamp().first > 0 &&
+                  std::difftime(std::time(nullptr), last_timestamp_in_s) < ENGINE_VALUE_TIMEOUT)
+               {
+                       engine_on = true;
+               }
+               else
+               {
+                       AFB_NOTICE("is_engine_on: engine.speed CAN signal found, but engine seems off");
+               }
+       }
+       else
+       {
+               AFB_NOTICE("is_engine_on: Can't identify a useable engine.speed CAN signal");
+       }
+
+       if(sf.diagnostic_messages.size() == 1)
+       {
+               last_timestamp_in_s = sf.diagnostic_messages.front()->get_last_value_with_timestamp().second
+                                               / MICROSECONDS_IN_SECOND;
+
+               if(sf.diagnostic_messages.front()->get_last_value_with_timestamp().first > 0 &&
+                  std::difftime(std::time(nullptr), last_timestamp_in_s) < ENGINE_VALUE_TIMEOUT)
+               {
+                       engine_on = true;
+               }
+               else
+               {
+                       AFB_NOTICE("is_engine_on: engine.speed diagnostic message found, but engine seems off");
+               }
+       }
+       else
+       {
+               AFB_NOTICE("is_engine_on: Can't identify a useable engine.speed diagnostic message");
+       }
+
+       return engine_on;
+}
\ No newline at end of file