Function rocksdb::compaction_filter::filter_callback
source ยท pub unsafe extern "C" fn filter_callback<F>(
raw_cb: *mut c_void,
level: c_int,
raw_key: *const c_char,
key_length: size_t,
existing_value: *const c_char,
value_length: size_t,
new_value: *mut *mut c_char,
new_value_length: *mut size_t,
value_changed: *mut c_uchar,
) -> c_ucharwhere
F: CompactionFilter,