lock on bool when access via multiple threads
Guys,
I have two threads.
Currently I check on a bool to determine whether one of the threads should stop work. The bool is set from the other thread. Do I need to lock around the bool? I presumed I would, but collegues believe I may not have to? Another collegue mentioned setting the bool to volatile, so it's not cached? I appreciate if anyone could suggest the correct action.
Thanks.
- Lee.
I have two threads.
Currently I check on a bool to determine whether one of the threads should stop work. The bool is set from the other thread. Do I need to lock around the bool? I presumed I would, but collegues believe I may not have to? Another collegue mentioned setting the bool to volatile, so it's not cached? I appreciate if anyone could suggest the correct action.
Thanks.
- Lee.
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that's great, thankyou.
You only need to lock if both threads were updating the bool. If only one is writing and the other is only reading, the lock is not needed.