.net - .NET 中 GC.WaitForPendingFinalizers() 在什么情况下会阻塞？

Question

引用来自 GC.WaitForPendingFinalizers() 的 MSDN 文档:

The thread on which finalizers are run is unspecified, so there is no guarantee that this method will terminate.

我真的不明白这句话。这个方法在什么情况下不会终止？这与终结器运行的线程有什么关系？为什么他们说线程是“未指定的”？

关于终结器线程，我认为以下是正确的(？):

只有一个终结器线程。

终结器始终在单独的线程上运行(即从不在主线程或任何其他用户创建的线程上)。

注意:我可以想象当终结器之一阻塞时，此方法会阻塞，但无论终结器使用什么线程，都存在此问题。

Answer 1

来自 another article on MSDN :

The Finalize method might not run to completion or might not run at all in the following exceptional circumstances:

• Another finalizer blocks indefinitely (goes into an infinite loop, tries to obtain a lock it can never obtain and so on). Because the runtime attempts to run finalizers to completion, other finalizers might not be called if a finalizer blocks indefinitely.

• The process terminates without giving the runtime a chance to clean up. In this case, the runtime's first notification of process termination is a DLL_PROCESS_DETACH notification.