Boost shared_lock. Read preferred?

Question

I was checking out the boost library(version 1.45) for a reader/writer lock. When I ran my tests on it, it seemed like the shared_ptr was preferring my reader threads, i.e.

Answer 1

A google search of "boost shared lock starvation" turned up this link:

• Example for boost shared_mutex (multiple reads/one write)?

It looks like "upgrade" might be the key. See also:

• Example of how to use boost upgradeable mutexes

• http://HowardHinnant.github.io/shared_mutex