mozilla/rust — pull request #8966 by FlaPer87 (2013-09-03 23:36:07+00:00)
Title: Add a safe implementation of MutexArc::access* methods

Current access methods are nestable and unsafe. This patch renames
current methods implementation - prepends unsafe_ - and implements 2 new
methods that are both safe and un-nestable.

Fixes #7473