allow easy testing of other services with memory broker
and also allows to more deeply simulate real brokers
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
mutex locking have errors, so when two service (one pub, other sub)
try to use this broker it waits for mutex release and nothing works
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>