Monitor.Enter可以引发异常吗? [英] Can Monitor.Enter throw an exception?

问题描述

可以Monitor.Enter引发任何异常.我正在进行代码审查，并发现Monitor.Enter在try块之前.您是否发现in有任何问题?

Can Monitor.Enter throw any exception. I am doing a code review and find that Monitor.Enter is before try block. Do you see any issues with in?

Monitor.Enter(...)
try
{
    ...
}
finally
{
    Monitor.Exit(..)
}

推荐答案

这是正确的模式，无论Enter()是否抛出(可以抛出).

This is the correct pattern, whether Enter() throws (can throw) or not.

仅在调用Enter()成功之后，您的代码才有责任调用Exit().

Only after the call to Enter() succeeds your code is under the responsibility to call Exit().

假设对Enter()的调用失败.然后，调用相应的Exit()是完全错误的，这会使情况变得更糟.因此，Enter()必须在try块之前(之前).

Suppose the call to Enter() fails. Then calling the corresponding Exit() is simply incorrect, it will make matters worse. So Enter() has to be outside (before) the try block.

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