Class Open

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__

(inherited documentation)

(Re)arm the oplock future for this open. This function should be called when an oplock changes level to anything except SMB2_OPLOCK_LEVEL_NONE

Simple oplock break callback handler.

Parameters:

• cb - callable taking 1 parameter: the break request oplock level should return the desired oplock level to break to

Complex oplock break callback handler.
@param cb: callable taking 3 parameters:
                L{Open}
                L{Smb2} containing the break request
                L{object} arbitrary context
           should handle breaking the oplock in some way
           callback is also responsible for re-arming the future
           and updating the oplock_level (if changed)