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/**
* @file lv_example_osal.c
*
*/
/*********************
* INCLUDES
*********************/
#include "../../lv_examples.h"
#if LV_BUILD_EXAMPLES
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void counter_button_event_cb(lv_event_t * e);
static void increment_thread_entry(void * user_data);
/**********************
* STATIC VARIABLES
**********************/
static lv_thread_sync_t press_sync;
static lv_thread_t increment_thread;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_example_osal(void)
{
lv_obj_t * counter_button;
counter_button = lv_button_create(lv_screen_active());
lv_obj_align(counter_button, LV_ALIGN_CENTER, 0, -15);
lv_obj_add_event_cb(counter_button, counter_button_event_cb, LV_EVENT_CLICKED, NULL);
if(lv_thread_sync_init(&press_sync) != LV_RESULT_OK) {
LV_LOG_ERROR("Error initializing thread sync");
}
if(lv_thread_init(&increment_thread, LV_THREAD_PRIO_MID, increment_thread_entry, 2048, NULL) != LV_RESULT_OK) {
LV_LOG_ERROR("Error initializing thread");
}
}
/**********************
* STATIC FUNCTIONS
**********************/
static void counter_button_event_cb(lv_event_t * e)
{
LV_UNUSED(e);
if(lv_thread_sync_signal(&press_sync) != LV_RESULT_OK) {
LV_LOG_ERROR("Error signaling thread sync");
}
}
static void increment_thread_entry(void * user_data)
{
LV_UNUSED(user_data);
lv_obj_t * counter_label;
uint32_t press_count = 0;
lv_lock();
counter_label = lv_label_create(lv_scr_act());
lv_obj_align(counter_label, LV_ALIGN_CENTER, 0, 0);
lv_label_set_text_fmt(counter_label, "Pressed %u times", press_count);
lv_unlock();
while(true) {
if(lv_thread_sync_wait(&press_sync) != LV_RESULT_OK) {
LV_LOG_ERROR("Error awaiting thread sync");
}
press_count += 1;
lv_lock();
lv_label_set_text_fmt(counter_label, "Pressed %u times", press_count);
lv_unlock();
}
}
#endif
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