CODEWITHSUNDEEP
c#multithreadingint
berry wer
berry wer

Reputation: 647

How to lock int that accessing via different threads

I have this variable:

private static volatile int _filesInUse;

This variable is accessed via different threads and I want to lock this when it's value is changing in order to update my UI about the current state.

Upvotes: 0

Views: 51

Answers (3)

Patrick Hofman
Patrick Hofman

Reputation: 156978

For changing the integer, you have Interlocked.Increment. You just have to pass it in with the ref keyword:

int result = Interlocked.Increment(ref _filesInUse);

Use result along the way (it doesn't get updated when _filesInUse does, so it is save in your procedure to use it).

Upvotes: 5

Dimitris Batsougiannis
Dimitris Batsougiannis

Reputation: 759

Why don't you use a [lock][1]

object lockObject = new object();

lock(lockObject)
{
// do your value changing stuff
}

Upvotes: 0

dynamic
dynamic

Reputation: 48091

You should provide a method to change that value that is synched:

[MethodImpl(MethodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}

Upvotes: 0

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