Re: [interprocess] Mutex and condition at process termination

From: Phil Endecott (spam_from_boost_dev_at_[hidden])
Date: 2020-05-20 12:06:50

Niall Douglas wrote:
> Coming back to shared memory mutexes etc, me personally if I want a
> mutex that is shared across processes and is resilient to sudden process
> death, I just lock a shared file in /tmp using flock(). This is
> completely portable: LLFIO, thanks to recent WG21 feedback, now
> implements SharedMutex Concept matching file_handle. Rather usefully,
> the content of the same shared file can also be the shared memory
> between the processes. One thus has exactly what the OP is looking for.

That's an interesting idea, but unfortunately I don't think there's
a way to get a (robust) condition variable that works with this
lock, and that's what I really need.

Regards, Phil.