From feaf1958a808725df7a2b0ede65c2733965064cd Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Sat, 1 Oct 2022 08:49:23 +0800
Subject: [PATCH] 1

---
 a8/xtimer.cc | 25 +++++++++++++++++++++++++
 a8/xtimer.h  |  5 +++++
 2 files changed, 30 insertions(+)

diff --git a/a8/xtimer.cc b/a8/xtimer.cc
index ebe4599..7f6e60c 100644
--- a/a8/xtimer.cc
+++ b/a8/xtimer.cc
@@ -123,6 +123,11 @@ static inline void InitTimerList(xtvec_base* base, xtimer_list* timer, int timer
 namespace a8
 {
 
+    struct XTimerPtr
+    {
+        xtimer_list* timer = nullptr;
+    };
+
     XTimer::XTimer()
     {
         base_ = new xtvec_base();
@@ -443,4 +448,24 @@ namespace a8
         delete node;
     }
 
+    std::weak_ptr<XTimerPtr> XTimer::GetTimerPtr(xtimer_list* timer)
+    {
+        std::shared_ptr<XTimerPtr> timer_ptr = std::make_shared<XTimerPtr>();
+        timer_ptr->timer = timer;
+        AddTimerDestoryHandle
+            (timer,
+             [timer_ptr] (xtimer_list* timer)
+             {
+                 timer_ptr->timer = nullptr;
+             });
+        return timer_ptr;
+    }
+
+    void XTimer::DeleteTimer(std::weak_ptr<XTimerPtr>& ptr)
+    {
+        if (!ptr.expired()) {
+            DeleteTimer(ptr.lock()->timer);
+        }
+    }
+
 }
diff --git a/a8/xtimer.h b/a8/xtimer.h
index 7371e38..194428b 100644
--- a/a8/xtimer.h
+++ b/a8/xtimer.h
@@ -12,6 +12,7 @@ namespace a8
     typedef void (*XTimerAfterFunc)(const a8::XParams& param);
     typedef long long (*XGetTickCountFunc)(void*);
     typedef struct list_head XTimerDestoryHandle;
+    struct XTimerPtr;
 
     class XTimer
     {
@@ -53,6 +54,10 @@ namespace a8
                                                    std::function<void(xtimer_list*)> cb);
         //移除定时器销毁事件
         void RemoveTimerDestoryHandle(XTimerDestoryHandle* handle);
+        //获取定时器弱引用
+        std::weak_ptr<XTimerPtr> GetTimerPtr(xtimer_list* timer);
+        //删除弱引用指向的定时器
+        void DeleteTimer(std::weak_ptr<XTimerPtr>& ptr);
 
     private:
         void UpdateTimer();