doc: renamed project

pico-sensor/McuLib/LittlevGL/lvgl/src/misc/lv_async.c

@@ -0,0 +1,105 @@
+/**
+ * @file lv_async.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "lv_async.h"
+#include "lv_mem.h"
+#include "lv_timer.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+typedef struct _lv_async_info_t {
+    lv_async_cb_t cb;
+    void * user_data;
+} lv_async_info_t;
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+static void lv_async_timer_cb(lv_timer_t * timer);
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+lv_res_t lv_async_call(lv_async_cb_t async_xcb, void * user_data)
+{
+    /*Allocate an info structure*/
+    lv_async_info_t * info = lv_mem_alloc(sizeof(lv_async_info_t));
+
+    if(info == NULL)
+        return LV_RES_INV;
+
+    /*Create a new timer*/
+    lv_timer_t * timer = lv_timer_create(lv_async_timer_cb, 0, info);
+
+    if(timer == NULL) {
+        lv_mem_free(info);
+        return LV_RES_INV;
+    }
+
+    info->cb = async_xcb;
+    info->user_data = user_data;
+
+    lv_timer_set_repeat_count(timer, 1);
+    return LV_RES_OK;
+}
+
+lv_res_t lv_async_call_cancel(lv_async_cb_t async_xcb, void * user_data)
+{
+    lv_timer_t * timer = lv_timer_get_next(NULL);
+    lv_res_t res = LV_RES_INV;
+
+    while(timer != NULL) {
+        /*Find the next timer node*/
+        lv_timer_t * timer_next = lv_timer_get_next(timer);
+
+        /*Find async timer callback*/
+        if(timer->timer_cb == lv_async_timer_cb) {
+            lv_async_info_t * info = (lv_async_info_t *)timer->user_data;
+
+            /*Match user function callback and user data*/
+            if(info->cb == async_xcb && info->user_data == user_data) {
+                lv_timer_del(timer);
+                lv_mem_free(info);
+                res = LV_RES_OK;
+            }
+        }
+
+        timer = timer_next;
+    }
+
+    return res;
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static void lv_async_timer_cb(lv_timer_t * timer)
+{
+    lv_async_info_t * info = (lv_async_info_t *)timer->user_data;
+
+    info->cb(info->user_data);
+    lv_mem_free(info);
+}