为什么我的控制器在声明后被处置await
?
public async Task<ViewResult> MyAction()
{
await Task.Yield();
// controller disposed at this point... why?
return this.View();
}
我的控制器使用它通过覆盖Dispose
方法处理的资源......但使用 async/await 似乎打破了这一点,因为它会在执行 await 语句后立即处理控制器......我怎样才能以异步的方式处理资源支持/等待?
编辑: dispose 方法的调用堆栈中的最后一个方法:
MyWebRole.dll!MyWebRole.Code.MyController.Dispose(bool disposing = true) Line 102 C#
System.Web.Mvc.dll!System.Web.Mvc.Controller.Dispose() + 0x25 bytes
System.Web.Mvc.dll!System.Web.Mvc.DefaultControllerFactory.ReleaseController(System.Web.Mvc.IController controller = {MyWebRole.Areas.App.Controllers.LongPollingController}) + 0x3e bytes
System.Web.Mvc.dll!System.Web.Mvc.MvcHandler.BeginProcessRequest.AnonymousMethod__5() + 0x70 bytes
System.Web.Mvc.dll!System.Web.Mvc.Async.AsyncResultWrapper.MakeVoidDelegate.AnonymousMethod__0() + 0x2d bytes
System.Web.Mvc.dll!System.Web.Mvc.Async.AsyncResultWrapper.BeginSynchronous<System.Web.Mvc.Async.AsyncVoid>.AnonymousMethod__7(System.IAsyncResult _ = {System.Web.Mvc.Async.SimpleAsyncResult}) + 0x2b bytes
System.Web.Mvc.dll!System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult<System.Web.Mvc.Async.AsyncVoid>.End() + 0x99 bytes
System.Web.Mvc.dll!System.Web.Mvc.Async.AsyncResultWrapper.End<System.Web.Mvc.Async.AsyncVoid>(System.IAsyncResult asyncResult = {System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult<System.Web.Mvc.Async.AsyncVoid>}, object tag = {object}) + 0x3c bytes
System.Web.Mvc.dll!System.Web.Mvc.Async.AsyncResultWrapper.End(System.IAsyncResult asyncResult = {System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult<System.Web.Mvc.Async.AsyncVoid>}, object tag = {object}) + 0x29 bytes
System.Web.Mvc.dll!System.Web.Mvc.MvcHandler.EndProcessRequest.AnonymousMethod__d() + 0x27 bytes
System.Web.Mvc.dll!System.Web.Mvc.SecurityUtil.GetCallInAppTrustThunk.AnonymousMethod__0(System.Action f = {Method = {System.Reflection.RuntimeMethodInfo}}) + 0x20 bytes
System.Web.Mvc.dll!System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(System.Action action = {Method = {System.Reflection.RuntimeMethodInfo}}) + 0x3e bytes
System.Web.Mvc.dll!System.Web.Mvc.MvcHandler.EndProcessRequest(System.IAsyncResult asyncResult = {System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult<System.Web.Mvc.Async.AsyncVoid>}) + 0x77 bytes
System.Web.Mvc.dll!System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(System.IAsyncResult result = {System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult<System.Web.Mvc.Async.AsyncVoid>}) + 0x27 bytes
该Dispose
方法正在被调用disposing = true
......这很糟糕。也许是一个错误?
编辑 2:我尝试过子类AsyncController
化,但同样的情况发生了。
有什么解决办法吗?