* Adhemerval Zanella: > Also currently we don't have a specific usage. The proposed patch to > add the 'pthread_mutex_lock_any' and 'pthreada_timedlock_any' [3] > also did not gave much detail in realword usages or how it can be > leveraged. The current rwlock implementation in glibc uses a torn 32-bit futex read which is part of an atomically updated 64-bit word. That's just really, really ugly, and I suspect we could make that go away with futex2. Thanks, Florian