如何判断当前线程是否正在模拟？ [英] How to tell if current thread is impersonating?

问题描述

我有一个c ++应用程序，其中线程可以模拟使用LogonUser / ImpersonateLoggedOnUser，然后使用RevertToSelf恢复模拟。我碰到了错误，导致线程模仿这种方式两次。我想通过测试当前线程是否已经是模拟，并抛出异常，如果它是防止这种情况。有没有办法判断当前线程是否已经模拟？

I have a c++ application in which threads could impersonate using LogonUser/ImpersonateLoggedOnUser, and then revert impersonation using RevertToSelf. I ran across the bug which caused thread to impersonate this way twice. I want to prevent this by testing if current thread is already impersonating and throw exception if it is. Is there a way to tell if current thread is impersonating already?

推荐答案

可以使用OpenThreadToken。如果一个线程有一个令牌，那么它是模拟;如果没有令牌，那么它不是模拟。

You can use OpenThreadToken. If a thread has a token then it is impersonating; if it doesn't have a token then it is not impersonating.

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