Allow specifying custom semaphore
Allow specifying custom semaphore

andresriancho/billiard,jakirkham/billiard,pombredanne/billiard,flaviogrossi/billiard,djsmith42/billiard,flaviogrossi/billiard,andresriancho/billiard,pombredanne/billiard,djsmith42/billiard,jakirkham/billiard