From: VinÃcius dos Santos Oliveira (vini.ipsmaker_at_[hidden])
Date: 2020-05-14 15:37:07
Em qui., 14 de mai. de 2020 Ã s 07:42, Phil Endecott via Boost <
> Can we improve how interprocess mutexes and condition variables
> behave on process termination? [...]
After some more thought, here is another idea: PTHREAD_MUTEX_ROBUST is no
longer a property of the mutex, but a property of the lock.
So a normal unique_lock will map the behaviour of PTHREAD_MUTEX_STALLED
(i.e. a non-robust mutex) while an unique_robust_lock will still succeed to
acquire a mutex whose process died while holding a lock (and then user has
to check whether acquired lock is consistent). If there are multiple locks
waiting to acquire the mutex whose process crashed, only a
unique_robust_lock will succeed in acquiring the mutex.
-- VinÃcius dos Santos Oliveira https://vinipsmaker.github.io/
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