c# - Critical section with state variable using Interlocked.Exchange -


i have critical section i'm trying protect using interlocked.exchange on member variable (int _state). code:

if (interlocked.exchange(ref _state, 1) == 0) {     // *** danger zone ***     try     {          //     }         {          _state = 0;     } }

_state read elsewhere determine state, required.

my concern should exception occur in "danger zone", _state never set 0 , critical section never able entered again.

is there better way of doing while still being able set state variable? should using double lock pattern?


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