nautilus_model/ffi/data/
delta.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2025 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16use std::{
17    collections::hash_map::DefaultHasher,
18    hash::{Hash, Hasher},
19};
20
21use nautilus_core::UnixNanos;
22
23use crate::{
24    data::{BookOrder, OrderBookDelta},
25    enums::BookAction,
26    identifiers::InstrumentId,
27};
28
29#[no_mangle]
30#[cfg_attr(feature = "high-precision", allow(improper_ctypes_definitions))]
31pub extern "C" fn orderbook_delta_new(
32    instrument_id: InstrumentId,
33    action: BookAction,
34    order: BookOrder,
35    flags: u8,
36    sequence: u64,
37    ts_event: UnixNanos,
38    ts_init: UnixNanos,
39) -> OrderBookDelta {
40    OrderBookDelta::new(
41        instrument_id,
42        action,
43        order,
44        flags,
45        sequence,
46        ts_event,
47        ts_init,
48    )
49}
50
51#[no_mangle]
52pub extern "C" fn orderbook_delta_eq(lhs: &OrderBookDelta, rhs: &OrderBookDelta) -> u8 {
53    u8::from(lhs == rhs)
54}
55
56#[no_mangle]
57pub extern "C" fn orderbook_delta_hash(delta: &OrderBookDelta) -> u64 {
58    let mut hasher = DefaultHasher::new();
59    delta.hash(&mut hasher);
60    hasher.finish()
61}
nautilus_model/ffi/data/delta.rs

nautilus_model/ffi/data/
delta.rs
