pub type FAST_IO_LOCK = Option<unsafe extern "system" fn(fileobject: *const FILE_OBJECT, fileoffset: *const i64, length: *const i64, processid: PEPROCESS, key: u32, failimmediately: BOOLEAN, exclusivelock: BOOLEAN, iostatus: *mut IO_STATUS_BLOCK, deviceobject: *const DEVICE_OBJECT) -> BOOLEAN>;
enum FAST_IO_LOCK {
None,
Some(unsafe extern "system" fn(_: *const FILE_OBJECT, _: *const i64, _: *const i64, _: PEPROCESS, _: u32, _: BOOLEAN, _: BOOLEAN, _: *mut IO_STATUS_BLOCK, _: *const DEVICE_OBJECT) -> BOOLEAN),
}