#12: multiple capabilities in user task, user init function, cleanup message handling in main, clearer api

lib/exampletask/GwExampleTask.cpp

@@ -4,6 +4,12 @@
 #include "GwExampleTask.h"
 #include "GwApi.h"
 
+/**
+ * an init function that ist being called before other initializations from the core
+ */
+void exampleInit(GwApi *api){
+    api->getLogger()->logDebug(GwLog::LOG,"example init running");
+}
 #define INVALID_COORD -99999
 class GetBoatDataRequest: public GwMessage{
     private:
@@ -32,8 +38,7 @@ class GetBoatDataRequest: public GwMessage{
             longitude=api->getBoatData()->Longitude->getDataWithDefault(INVALID_COORD);
         };
 };
-void exampleTask(void *param){
-    GwApi *api=(GwApi*)param;
+void exampleTask(GwApi *api){
     GwLog *logger=api->getLogger();
     //get some configuration data
     bool exampleSwitch=api->getConfig()->getConfigItem(

lib/exampletask/GwExampleTask.h

@@ -23,11 +23,19 @@
 //brightness 0...255
 #define GWLED_BRIGHTNESS 64
 
-void exampleTask(void *param);
+void exampleTask(GwApi *param);
+void exampleInit(GwApi *param);
 //make the task known to the core
+//the task function should not return (unless you delete the task - see example code)
 DECLARE_USERTASK(exampleTask);
+//let the core call an init function before the 
+//N2K Stuff and the communication is set up
+//normally you should not need this at all
+//this function must return when done - otherwise the core will not start up
+DECLARE_INITFUNCTION(exampleInit);
 //we declare a capability that we can
 //use in config.json to only show some
 //elements when this capability is set correctly
 DECLARE_CAPABILITY(testboard,true);
+DECLARE_CAPABILITY(testboard2,true);
 #endif

lib/exampletask/config.json

@@ -1,7 +1,7 @@
 [
     {
         "name": "exampleConfig",
-        "label": "logging on",
+        "label": "monitor position",
         "type": "boolean",
         "default": "false",
         "description": "switch on logging of position acquired/failed",