Higher level synchronization primitives in Go
Ideas are mostly inspired by The Little Book of Semaphores
All types except the semaphore itself are implemented on top of the semaphore type defined in the sync/semaphore package. Any semaphore implementation can be used as a drop-in replacement for this. Our current implementation makes use of go standard sync library's Cond and Mutex type, but we could do away with them if needed. Possible alternative is to use System V semaphores.