From: russolot@... Date: 2021-01-23T16:15:23+00:00 Subject: [ruby-core:102220] [Ruby master Misc#11904] Why was Thread.exclusive deprecated? Issue #11904 has been updated by RobertTougs (RobertTougs RobertTougs). File 122.gif added �� <-- ---------------------------------------- Misc #11904: Why was Thread.exclusive deprecated? https://bugs.ruby-lang.org/issues/11904#change-90068 * Author: bascule (Tony Arcieri) * Status: Rejected * Priority: Normal ---------------------------------------- initialize a mutex because the mutex must be initialized in a thread-safe context where it's not possible for multiple caller threads to initialize the mutex concurrently. One use case is here: this is an idempotent native function invoked via FFI. The contract is that it can be called repeatedly, but only by one thread at a time (concurrent calls from multiple threads can potentially corrupt its internal state): https://github.com/cryptosphere/rbnacl/blob/master/lib/rbnacl.rb#L88 Thread.exclusive is useful because it provides an implicit mutex you can ensure is initialized correctly before any other threads start. ---Files-------------------------------- 216.gif (2.78 KB) 256.gif (3.43 KB) 122.gif (2.21 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: