← Back to context

Comment by mgaunard

8 hours ago

I find it better to model that as an Actor than a mutex, but I guess it's inherently the same thing, except the actor also allows asynchronous operations.

7 comments

mgaunard

Reply
gpderetta  8 hours ago

You can go full circle and also make operations on a mutex asynchronous. Hence the realization that message passing and shared memory are truly dual.

  • mgaunard  7 hours ago

    The very idea of a mutex is that it is synchronous. You wait until you can acquire the mutex.

    If it's asynchronous, it's not a mutex anymore, or it's just used to synchronously setup some other asynchronous mechanism.

    • gpderetta  6 hours ago

      A mutex is a way to guarantee mutual exclusion nothing more nothing less; You can recover synchronous behaviour if you really want:

          synchronized<Something> something;
    ...
    co_await something.async_visit([&](Something& x) {
        /* critical section here */ 
    });

      4 replies →