我有线程异常处理程序,它保存异常堆栈跟踪并应关闭应用程序。我打电话给Applicatoin.Exit,但只关闭窗口,让应用程序无窗口运行。
我知道,这通常是因为某些后台线程仍在运行。我将windbg附加到无窗口进程,似乎只有两个托管线程,其中一个看起来像gc终结器线程,第二个看起来像消息泵???任何人都明白这一点?
调用Application.Exit和用户关闭主窗口之间有区别吗?
0:005> !threads ThreadCount: 2 UnstartedThread: 0 BackgroundThread: 1 PendingThread: 0 DeadThread: 0 Hosted Runtime: no PreEmptive GC Alloc Lock ID OSID ThreadOBJ State GC Context Domain Count APT Exception 0 1 284 002e9668 6020 Enabled 021a7268:021a7fe8 002e4c68 0 STA 2 2 d48 002f9890 b220 Enabled 00000000:00000000 002e4c68 0 MTA (Finalizer) 0:001> ~0 s *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\MSCTF.dll - eax=02162530 ebx=002e9668 ecx=02162530 edx=02162530 esi=0019ef9c edi=0019ee3c eip=77589a94 esp=0019edcc ebp=0019ede8 iopl=0 nv up ei pl zr na pe nc cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246 ntdll!KiFastSystemCallRet: 77589a94 c3 ret 0:000> !clrstack OS Thread Id: 0x284 (0) ESP EIP 0019ef24 77589a94 [ComPlusMethodFrameGeneric: 0019ef24] MS.Win32.UnsafeNativeMethods+ITfMessagePump.GetMessageW(System.Windows.Interop.MSG ByRef, Int32, Int32, Int32, Boolean ByRef) 0019ef44 56d61937 System.Windows.Threading.Dispatcher.GetMessage(System.Windows.Interop.MSG ByRef, IntPtr, Int32, Int32) 0019ef90 56d617e3 System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame) 0019efe0 56d616c7 System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame) 0019effc 56d6162d System.Windows.Threading.Dispatcher.Run() 0019f008 5533ddb0 System.Windows.Application.RunInternal(System.Windows.Window) 0019f034 5533dbe5 System.Windows.Application.Run(System.Windows.Window) 0019f044 5533d836 System.Windows.Application.Run() 0019f04c 01ea00ad UI.App.Main() 0019f268 79e7c74b [GCFrame: 0019f268]
答案 0 :(得分:10)
我解决了这个问题。我应该调用System.Windows.Application.Shutdown()而不是调用System.Windows.Forms.Application.Exit()。消息泵线程属于wpf,您可以从该线程的堆栈跟踪中看到它。
换句话说,System.Windows.Forms.Application.Exit()不会关闭WPF消息泵。