Function DARegisterDiskDescriptionChangedCallback 

pub unsafe extern "C" fn DARegisterDiskDescriptionChangedCallback(
    session: DASessionRef,
    match_: CFDictionaryRef,
    watch: CFArrayRef,
    callback: DADiskDescriptionChangedCallback,
    context: *mut c_void,
)

Registers a callback function to be called whenever a disk description has changed.

Parameters

• session - The session object.
• match - The disk description keys to match. Pass NULL for all disk objects.
• watch - The disk description keys to watch. Pass NULL for all keys.
• callback - The callback function to call when a watched key changes.
• context - The user-defined context parameter to pass to the callback function.