diff --git a/src/timer.rs b/src/timer.rs
index 2ed8693..33461bd 100644
--- a/src/timer.rs
+++ b/src/timer.rs
@@ -2,7 +2,6 @@ use std::rc::{Rc, Weak};
 use std::cell::RefCell;
 use std::any::Any;
 
-//const CONFIG_BASE_SMALL: bool = false;
 const TVN_BITS: usize = 6;
 const TVR_BITS: usize = 8;
 const TVN_SIZE: usize = 1 << TVN_BITS;
@@ -11,6 +10,7 @@ const TVN_MASK: usize = TVN_SIZE - 1;
 const TVR_MASK: usize = TVR_SIZE - 1;
 
 pub type TimerWp = Weak::<Rc::<RefCell::<TimerList>>>;
+pub type TimerCb = Box::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>;
 
 pub struct TimerAttacher {
     timers: Rc::<RefCell::<crate::ListHead<TimerList>>>,
@@ -40,16 +40,17 @@ pub struct TimerList {
     expire_time: i32,
     expires: i64,
 
-    cb: Option<Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>>,
+    cb: Option<TimerCb>,
 }
 
 pub struct Timer {
     free_timer_num: i32,
     free_timer_list: Rc::<RefCell::<crate::ListHead<TimerList>>>,
-    //running_timer: Weak::<RefCell::<TimerList>>,
+    running_timer: Weak::<RefCell::<TimerList>>,
     timer_tick: i64,
     get_tick_count: fn () -> i64,
     cache_timer_num: i32,
+    work_list: Rc::<RefCell::<crate::ListHead<TimerList>>>,
     tv1: [Rc::<RefCell::<crate::ListHead<TimerList>>>; TVR_SIZE],
     tv2: [Rc::<RefCell::<crate::ListHead<TimerList>>>; TVN_SIZE],
     tv3: [Rc::<RefCell::<crate::ListHead<TimerList>>>; TVN_SIZE],
@@ -59,13 +60,14 @@ pub struct Timer {
 
 impl Timer {
 
-    pub fn init(&mut self,
+    pub fn init(mut self,
                 get_tick_count: fn () -> i64,
                 gctime: i32,
                 cache_timer_num: i32) {
         self.get_tick_count = get_tick_count;
         self.cache_timer_num = cache_timer_num;
         self.free_timer_num = 0;
+        self.work_list = crate::ListHead::<TimerList>::new_head();
         for i in 0..self.tv1.len() {
             self.tv1[i] = crate::ListHead::<TimerList>::new_head();
         }
@@ -82,18 +84,30 @@ impl Timer {
             self.tv5[i] = crate::ListHead::<TimerList>::new_head();
         }
         self.timer_tick = (self.get_tick_count)();
-        let cb = Rc::new(
-            |_event: i32, _args: Option<Vec<Rc::<dyn Any>>>| {
-                //self.gc_timer(e, args);
+        let self_wp = self.get_rc_refcell();
+        let cb = Box::new(
+            move |_event: i32, _args: Option<Vec<Rc::<dyn Any>>>| {
+                self_wp.borrow_mut().gc_timer(_event, _args);
             }
         );
 
         self.set_interval(
             gctime,
-            cb
+            cb,
         );
     }
 
+    fn get_rc_refcell(&self) -> Rc::<RefCell::<Timer>> {
+        //let cell_rc: &Rc<RefCell<Timer> = &self ;
+        //let head: &ListHead<T> = &*cell_rc.borrow();
+        let cell_start = 0 as *const u8;
+        //let data_start = head as *const ListHead<T> as *const u8;
+        //let cell_offset = unsafe { data_start.offset_from(cell_start) };
+        unsafe {
+            return Rc::from_raw(cell_start as *const RefCell::<Timer>);
+        };
+    }
+
     pub fn uninit(&mut self) {
         self.clear();
     }
@@ -131,13 +145,37 @@ impl Timer {
     }
 
     pub fn update(&mut self) {
+        while (self.get_tick_count)() >= self.timer_tick {
+            let index = (self.timer_tick & (TVR_MASK as i64)) as usize;
+            if index == 0 {
 
+            }
+            self.timer_tick += 1;
+
+            crate::ListHead::<TimerList>::replace_init
+                (
+                    &mut self.work_list,
+                    &mut self.tv1[index]
+                );
+            while !self.work_list.borrow().empty() {
+                let timer = &self.work_list.borrow().first_entry();
+                self.running_timer = timer.clone();
+                match &timer.upgrade().unwrap().borrow_mut().cb {
+                    Some(v) => {
+                        //(*v)(0, None);
+                    }
+                    None => {
+
+                    }
+                }
+            }
+        }
     }
 
     fn internal_add(&mut self,
                     timer_type: TimerType,
                     expire_time: i32,
-                    cb: Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>,
+                    cb: TimerCb,
                     attacher: Option<Rc::<RefCell::<TimerAttacher>>>) -> TimerWp {
         let t = self.new_timer_list();
         t.borrow_mut().cb = Some(cb);
@@ -184,28 +222,28 @@ impl Timer {
 
     pub fn set_timeout(&mut self,
                        expire_time: i32,
-                       cb: Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>
+                       cb: TimerCb
     ) -> TimerWp {
         return self.internal_add(TimerType::Timeout, expire_time, cb, None);
     }
 
     pub fn set_timeout_ex(&mut self,
                           expire_time: i32,
-                          cb: Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>,
+                          cb: TimerCb,
                           attacher: Rc::<RefCell::<TimerAttacher>>) -> TimerWp {
         return self.internal_add(TimerType::Timeout, expire_time, cb, Some(attacher));
     }
 
     pub fn set_interval(&mut self,
                         expire_time: i32,
-                        cb: Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>
+                        cb: TimerCb
                         ) -> TimerWp {
         return self.internal_add(TimerType::Interval, expire_time, cb, None);
     }
 
     pub fn set_interval_ex(&mut self,
                            expire_time: i32,
-                           cb: Rc::<dyn FnMut (i32, Option<Vec<Rc::<dyn Any>>>)>,
+                           cb: TimerCb,
                            attacher: Rc::<RefCell::<TimerAttacher>>) -> TimerWp {
         return self.internal_add(TimerType::Interval, expire_time, cb, Some(attacher));
     }
@@ -239,9 +277,8 @@ impl Timer {
         return 0;
     }
 
-    /*
     fn gc_timer(&mut self, _e: i32, _args: Option<Vec<Rc::<dyn Any>>>) {
 
     }
-     */
+
 }