DataFlash: expose the number of lost log messages

will be logged in PM message
hughhugh · Apr 21, 2016 · c765979 · c765979
1 parent 8683616
commit c765979
Show file tree

Hide file tree

Showing 3 changed files with 15 additions and 0 deletions.
diff --git a/libraries/DataFlash/DataFlash.cpp b/libraries/DataFlash/DataFlash.cpp
@@ -203,6 +203,14 @@ void DataFlash_Class::Log_Write_Mission_Cmd(const AP_Mission &mission,
     FOR_EACH_BACKEND(Log_Write_Mission_Cmd(mission, cmd));
 }
 
+uint32_t DataFlash_Class::num_dropped() const
+{
+    if (_next_backend == 0) {
+        return 0;
+    }
+    return backends[0]->num_dropped();
+}
+
 
 // end functions pass straight through to backend
 

diff --git a/libraries/DataFlash/DataFlash.h b/libraries/DataFlash/DataFlash.h
@@ -159,6 +159,9 @@ class DataFlash_Class
 
     void periodic_tasks(); // may want to split this into GCS/non-GCS duties
 
+    // number of blocks that have been dropped
+    uint32_t num_dropped(void) const;
+
     vehicle_startup_message_Log_Writer _vehicle_messages;
 
     // parameter support

diff --git a/libraries/DataFlash/DataFlash_Backend.h b/libraries/DataFlash/DataFlash_Backend.h
@@ -94,6 +94,10 @@ class DataFlash_Backend
                              const AP_Param::ParamToken &token,
                              enum ap_var_type type);
 
+    uint32_t num_dropped(void) const {
+        return _dropped;
+    }
+
 protected:
     uint32_t dropped;
     uint8_t internal_errors; // uint8_t - wishful thinking?