[*] Release AuAsyncTimer callback references as soon as the object is canceled

Source/Async/AuAsyncTimer.cpp

@@ -28,7 +28,9 @@ namespace Aurora::Async
 
     void AsyncFuncTimer::CancelTimer()
     {
+        AU_LOCK_GUARD(this->mutex);
         this->Cancel();
+        AuResetMember(this->pCallback);
     }
 
     AuUInt64 AsyncFuncTimer::GetLastTime()
@@ -53,6 +55,7 @@ namespace Aurora::Async
 
     void AsyncFuncTimer::DispatchTask(IWorkItemHandler::ProcessInfo &info)
     {
+        AU_LOCK_GUARD(this->mutex);
         info.type = ETickType::eRerun;
 
         auto uTickCount = ++this->uTickCount;
@@ -68,6 +71,13 @@ namespace Aurora::Async
 
         info.reschedSteadyClockAbsNs = this->uNextTickTime;
 
+        if (!this->pCallback)
+        {
+            return;
+        }
+
+        try
+        {
             if (this->pCallback->OnTick(uTickCount, uDelta, this->uLastTickTime))
             {
                 info.type = ETickType::eSchedule;
@@ -77,6 +87,12 @@ namespace Aurora::Async
                 info.type = ETickType::eFinished;
             }
         }
+        catch (...)
+        {
+            info.type = ETickType::eSchedule;
+            SysPushErrorCatch();
+        }
+    }
 
     void AsyncFuncTimer::Cleanup()
     {

Source/Async/AuAsyncTimer.hpp

@@ -37,5 +37,6 @@ namespace Aurora::Async
         AuUInt64 uInterval {};
         AuUInt64 uTickCount {};
         bool bCatchUp { false };
+        AuCriticalSection mutex;
     };
 }