Changes between Version 1 and Version 2 of PacpusTutorials/ManagingDbtFiles

Timestamp:

Apr 15, 2014, 3:37:31 PM (11 years ago)

Author:

DHERBOMEZ Gérald

Comment:

--

PacpusTutorials/ManagingDbtFiles

@@ -70 +70 @@
 }}}
 
-After we open the DBT file in writing mode with this code: 
+After we open the DBT file in writing mode with the open method that takes in parameters: 
+ - the name of the DBT file 
+ - the management mode of DBT file (WriteMode, ReadMode)
+ - the ID of data
+ - the size of the data structure
 
 {{{
@@ -77 +81 @@
     dbtFile_.open("my_struct_file.dbt", WriteMode, FILE_MYSTRUCT, sizeof(MYSTRUCT));
 } catch (DbiteException & e) {
-    cerr << "error opening dbt file: "<< kSickDbtFileName << ", " << e.what() << endl;
+    cerr << "error opening dbt file: my_struct_file.dbt, " << e.what() << endl;
     return;
 }
 }}}
 
-The my_struct_file.dbt file will be created in current path of the application (often it is the folder where you launched the application PacpusSensor). 
+The my_struct_file.dbt file will be created in the current path of the application (often it is the folder where you have launched the application !PacpusSensor). 
 
+=== step 3: writing data in DBT file ===
+
+{{{
+#!cpp
+
+MYSTRUCT data; 
+data.data1 = 22; 
+data.data2 = 42; 
+data.data3 = 11;
+
+road_time_t time = road_time(); // the timestamp of the data 
+road_timerange_t timerange = 0; // if not use, please set the value to 0
+
+try {
+   dbtFile_.writeRecord(time, timerange, (char *) &data, sizeof(data));
+} catch (DbiteException & e) {
+   cerr << "error writing data: " << e.what() << endl;
+   return;
+}
+}}}
+
+=== step 4: closing DBT file === 
+
+At the end of your program don't forget to close correctly the DBT file: 
+{{{
+#!cpp
+
+dbtFile_.close();
+
+}}}