lv_task: add user data and pass lv_task_t as task_cb parameter

src/lv_core/lv_indev.c

@@ -68,13 +68,13 @@ void lv_indev_init(void)
  * Called periodically to read the input devices
  * @param param pointer to and input device to read
  */
-void lv_indev_read_task(void * param)
+void lv_indev_read_task(lv_task_t * task)
 {
     LV_LOG_TRACE("indev read task started");
 
     lv_indev_data_t data;
 
-    indev_act = param;
+    indev_act = task->user_data;
 
     /*Read and process all indevs*/
     if(indev_act->driver.disp == NULL) return; /*Not assigned to any displays*/

src/lv_core/lv_indev.h

@@ -36,9 +36,9 @@ void lv_indev_init(void);
 
 /**
  * Called periodically to read the input devices
- * @param param pointer to and input device to read
+ * @param task pointer to the task itself
  */
-void lv_indev_read_task(void * param);
+void lv_indev_read_task(lv_task_t * task);
 
 /**
  * Get the currently processed input device. Can be used in action functions too.

src/lv_core/lv_refr.c

@@ -132,15 +132,15 @@ lv_disp_t * lv_refr_get_disp_refreshing(void)
 
 /**
  * Called periodically to handle the refreshing
- * @param param point to a `lv_disp_t` to refresh
+ * @param task pointer to the task itself
  */
-void lv_disp_refr_task(void * param)
+void lv_disp_refr_task(lv_task_t * task)
 {
     LV_LOG_TRACE("lv_refr_task: started");
 
     uint32_t start = lv_tick_get();
 
-    disp_refr = param;
+    disp_refr = task->user_data;
 
     lv_refr_join_area();
 

src/lv_core/lv_refr.h

@@ -69,9 +69,9 @@ lv_disp_t * lv_refr_get_disp_refreshing(void);
 
 /**
  * Called periodically to handle the refreshing
- * @param param point to a `lv_disp_t` to refresh
+ * @param task pointer to the task itself
  */
-void lv_disp_refr_task(void * param);
+void lv_disp_refr_task(lv_task_t * task);
 
 /**********************
  *   STATIC FUNCTIONS

src/lv_misc/lv_task.c

@@ -138,7 +138,7 @@ LV_ATTRIBUTE_TASK_HANDLER void lv_task_handler(void)
             if(task_deleted)
                 break; /*If a task was deleted then this or the next item might be corrupted*/
             if(task_created)
-                break; /*If a task was deleted then this or the next item might be corrupted*/
+                break; /*If a task was created then this or the next item might be corrupted*/
 
             LV_GC_ROOT(_lv_task_act) = next; /*Load the next task*/
         }
@@ -165,7 +165,7 @@ LV_ATTRIBUTE_TASK_HANDLER void lv_task_handler(void)
  * @param task a function which is the task itself
  * @param period call period in ms unit
  * @param prio priority of the task (LV_TASK_PRIO_OFF means the task is stopped)
- * @param user_data free parameter
+ * @param user_data custom parameter
  * @return pointer to the new task
  */
 lv_task_t * lv_task_create(void (*task)(void *), uint32_t period, lv_task_prio_t prio, void * user_data)
@@ -198,12 +198,20 @@ lv_task_t * lv_task_create(void (*task)(void *), uint32_t period, lv_task_prio_t
     }
 
     new_lv_task->period   = period;
-    new_lv_task->task     = task;
+    new_lv_task->task_cb     = task;
     new_lv_task->prio     = prio;
-    new_lv_task->param    = user_data;
+
     new_lv_task->once     = 0;
     new_lv_task->last_run = lv_tick_get();
 
+#if LV_USE_USER_DATA_SINGLE
+    new_lv_task->user_data    = user_data;
+#endif
+
+#if LV_USE_USER_DATA_MULTI
+    new_lv_task->task_user_data    = NULL;
+#endif
+
     task_created = true;
 
     return new_lv_task;
@@ -322,7 +330,7 @@ static bool lv_task_exec(lv_task_t * lv_task_p)
         lv_task_p->last_run = lv_tick_get();
         task_deleted        = false;
         task_created        = false;
-        lv_task_p->task(lv_task_p->param);
+        lv_task_p->task_cb(lv_task_p);
 
         /*Delete if it was a one shot lv_task*/
         if(task_deleted == false) { /*The task might be deleted by itself as well*/

src/lv_misc/lv_task.h

@@ -55,8 +55,16 @@ typedef struct
 {
     uint32_t period;
     uint32_t last_run;
-    void (*task)(void *);
-    void * param;
+    void (*task_cb)(void *);
+
+#if LV_USE_USER_DATA_SINGLE
+    void * user_data;
+#endif
+
+#if LV_USE_USER_DATA_MULTI
+    void * task_user_data;
+#endif
+
     uint8_t prio : 3;
     uint8_t once : 1;
 } lv_task_t;
@@ -80,15 +88,14 @@ LV_ATTRIBUTE_TASK_HANDLER void lv_task_handler(void);
  * @param task a function which is the task itself
  * @param period call period in ms unit
  * @param prio priority of the task (LV_TASK_PRIO_OFF means the task is stopped)
- * @param user_data free parameter
- * @return pointer to the new task
+ * @param user_data custom parameter
+ * @return pointer to the new task_cb
  */
-lv_task_t * lv_task_create(void (*task)(void *), uint32_t period, lv_task_prio_t prio,
-                           void * user_data);
+lv_task_t * lv_task_create(void (*task)(void *), uint32_t period, lv_task_prio_t prio, void *  user_data);
 
 /**
  * Delete a lv_task
- * @param lv_task_p pointer to task created by lv_task_p
+ * @param lv_task_p pointer to task_cb created by lv_task_p
  */
 void lv_task_del(lv_task_t * lv_task_p);