InterviewSolution
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InterviewSolution
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What Is The Difference Between Monitor.enter And Monitor.exit? |
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Answer» C#’s LOCK statement is in fact a syntactic shortcut for a call to the methods Monitor.Enter and Monitor.Exit, with a try/finally block. Here’s (a simplified VERSION of) what’s actually happening WITHIN the Go METHOD of the preceding example: Monitor.Enter (_locker); try { if (_val2 != 0) Console.WriteLine (_val1 / _val2); _val2 = 0; } finally { Monitor.Exit (_locker); } Calling Monitor.Exit without first calling Monitor.Enter on the same object throws an EXCEPTION. C#’s lock statement is in fact a syntactic shortcut for a call to the methods Monitor.Enter and Monitor.Exit, with a try/finally block. Here’s (a simplified version of) what’s actually happening within the Go method of the preceding example: Monitor.Enter (_locker); try { if (_val2 != 0) Console.WriteLine (_val1 / _val2); _val2 = 0; } finally { Monitor.Exit (_locker); } Calling Monitor.Exit without first calling Monitor.Enter on the same object throws an exception. |
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