sionescu/bordeaux-threads — pull request #5 by lmj (2013-11-05 02:03:32+00:00)
Title: Indicate lock status in CONDITION-WAIT return.

On SBCL, BT:CONDITION-WAIT is identical to SB-THREAD:CONDITION-WAIT, returning T if the lock is held and NIL otherwise.

On non-SBCL implementations, BT:CONDITION-WAIT always returns T, as these implementations reacquire the lock before returning.