fix compile warnings

src/base/lftk.h

@@ -48,7 +48,7 @@ ret_t lftk_init(wh_t w, wh_t h, uint32_t* heap, uint32_t size);
  *
  * @return {ret_t} 返回RET_OK表示成功，否则表示失败。
  */
-ret_t lftk_run();
+ret_t lftk_run(void);
 
 /**
  * @method lftk_quit
@@ -57,7 +57,7 @@ ret_t lftk_run();
  *
  * @return {ret_t} 返回RET_OK表示成功，否则表示失败。
  */
-ret_t lftk_quit();
+ret_t lftk_quit(void);
 
 END_C_DECLS
 

src/base/platform.h

@@ -27,7 +27,7 @@
 BEGIN_C_DECLS
 
 ret_t platform_prepare(void);
-uint32_t get_time_ms();
+uint32_t get_time_ms(void);
 
 END_C_DECLS
 

src/base/timer.c

@@ -120,4 +120,4 @@ ret_t timer_check() {
   return RET_OK;
 }
 
-ret_t timer_count() { return ensure_timer_manager() == RET_OK ? s_timer_manager->size : 0; }
+uint32_t timer_count() { return ensure_timer_manager() == RET_OK ? s_timer_manager->size : 0; }

src/base/timer.h

@@ -43,8 +43,8 @@ typedef struct _timer_t {
 ret_t timer_init(timer_get_time_t get_time);
 ret_t timer_add(timer_func_t on_timer, void* user_data, uint32_t duration_ms);
 ret_t timer_remove(timer_func_t on_timer, void* user_data, uint32_t duration_ms);
-ret_t timer_check();
-ret_t timer_count();
+ret_t timer_check(void);
+uint32_t timer_count(void);
 
 END_C_DECLS
 

src/base/value.h

@@ -1,4 +1,4 @@
-/**
+/**
  * File:   value.h
  * Author: Li XianJing <xianjimli@hotmail.com>
  * Brief:  generic value type
@@ -430,7 +430,7 @@ value_t* value_set_int(value_t* v, int32_t value);
  *
  * @return {value_t*} 对象。
  */
-value_t* value_create();
+value_t* value_create(void);
 
 /**
  * @method value_destroy

src/base/widget.c

@@ -282,7 +282,7 @@ ret_t widget_dispatch(widget_t* widget, event_t* e) {
   return ret;
 }
 
-ret_t widget_on(widget_t* widget, event_type_t type, event_func_t on_event, void* ctx) {
+uint32_t widget_on(widget_t* widget, event_type_t type, event_func_t on_event, void* ctx) {
   return_value_if_fail(widget != NULL && on_event != NULL, RET_BAD_PARAMS);
   if (widget->emitter == NULL) {
     widget->emitter = emitter_create();

src/platforms/stm32f103ze_raw.c

@@ -19,6 +19,7 @@
  *
  */
 
+#include "base/timer.h"
 #include "base/platform.h"
 #include "button.h"
 #include "delay.h"