Add force_take function to ignore poisoned cache

The take and take_blocking functions return a PoisonError if the cache
is poisoned, i. e. if a thread panicked while holding the manager.  This
is a sensible default behaviour, but for example during testing, one
might want to ignore the poisoned cache.  This patch adds the force_take
function that unwraps the PoisonError and returns the cached Manager
even if the cache was poisoned.

0 files changed, 0 insertions, 0 deletions