The way I understand it, grantMask in the LOCK struct (file Lock.h) could help us find out all the lock types already granted for an object associated with the LOCKTAG.

How do we do the bit manipulation to 'separate' the mask to get to the different lock types associated with the object that acquired those locks?

And where is the information that describes the different 'mask' for the different lock types located?

Sorry, I'm really confused here,

Thank you so much for any help,

Sumaira