handleIsOpen
Declaration
virtual bool handleIsOpen(
const IOService *client) const = 0;Parameters
- client:
Client to check the open state of. Set to zero to check the open state of all clients.
Return Value
Returns true if the client was (or clients were) open, false otherwise.
Overview
The handleIsOpen method determines whether the specified client, or any client if none is specified, presently has an open on this object.