Thread safe implementation of circular buffer

Question

Circular_buffer from boost library is not thread-safe. So I wrapped boost::circular_buffer object in a class as shown below. Mutual exclusion between the threads is achieved

Answer 1

Your implementation is similar to the one shown by this blogger. You should read that blog to see if you missed anything in your implementation.

If your Mat objects are expensive to create/copy, you should avoid continuously creating/copying/deleting them. Instead, you should have a pool (aka free list) of Mat objects that continually get recycled in some kind of pipeline architecture. I describe this type of architecture in this answer to a related question.

In that answer, I suggested using a blocking stack to implement the pool, but you could also use your blocking circular_buffer. The reason I suggested a stack was because I thought it may be more cache-friendly, but I never actually measured to see if it would make a difference.