The following locking calls are made by a collection of processes. For each call, tell what happens.

Question:

The following locking calls are made by a collection of processes. For each call, tell what happens. If a process fails to get a lock, it blocks.
(a) A wants a shared lock on bytes 0 through 10.
(b) B wants an exclusive lock on bytes 20 through 30.
(c) C wants a shared lock on bytes 8 through 40.
(d) A wants a shared lock on bytes 25 through 35.
(e) B wants an exclusive lock on byte 8.