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August 26, 2022
Gravatar of mwPosted by mwReply
mw
Gravatar of mw


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Hi,

I haven't tried, but can I do:

void foo(lots of params) {
  Object lock = (a particular condition) ? realLock : null;

  synchronized(lock) {
    // lots of complex code block here
  }

}

i.e depending on a a particular condition, the complex code block either need to be sync-protected, or not needed.

Method foo has lots of params, I try to avoid refactor the inner code block into a separate method.

So my question: is it possible synchronized(null)? essentially means NO-OP.

If it's not currently supported, can we add such feature?

Thank.

August 26, 2022
Gravatar of Ali ÇehreliPosted by Ali Çehreli
in reply to mw		Reply
Ali Çehreli
Gravatar of Ali Çehreli
Posted in reply to mw


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On the main forum, Paul Backus proposed a nested function as well as a scoped lock.

On 8/26/22 10:13, mw wrote:

>    Object lock = (a particular condition) ? realLock : null;

And I want to point out that "a particular condition" must not change between the check above and the following synchronized statement.

>
>    synchronized(lock) {
>      // lots of complex code block here
>    }

Ali