Lock dynamic data store

Hello,

I would like to know if it is possible to lock dynamic data store avoiding that several threads could access the same store at the same time.

My idea is to implement a counter and stores its value using DDS. Every time I create a block of type T, I increment the counter. The problem is that if I create two blocks at the same time, the counter would increase only 1, instead of 2 units.

Kind regards,

Jesus.