nautilus_model/ffi/types/
price.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2026 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::ops::{AddAssign, SubAssign};
17
18use crate::types::price::{Price, PriceRaw};
19
20// TODO: Document panic
21#[unsafe(no_mangle)]
22#[cfg_attr(feature = "high-precision", allow(improper_ctypes_definitions))]
23pub extern "C" fn price_new(value: f64, precision: u8) -> Price {
24    // SAFETY: Assumes `value` and `precision` are properly validated
25    Price::new(value, precision)
26}
27
28#[unsafe(no_mangle)]
29#[cfg_attr(feature = "high-precision", allow(improper_ctypes_definitions))]
30pub extern "C" fn price_from_raw(raw: PriceRaw, precision: u8) -> Price {
31    Price::from_raw(raw, precision)
32}
33
34#[unsafe(no_mangle)]
35pub extern "C" fn price_as_f64(price: &Price) -> f64 {
36    price.as_f64()
37}
38
39#[unsafe(no_mangle)]
40#[cfg_attr(feature = "high-precision", allow(improper_ctypes_definitions))]
41pub extern "C" fn price_add_assign(mut a: Price, b: Price) {
42    a.add_assign(b);
43}
44
45#[unsafe(no_mangle)]
46#[cfg_attr(feature = "high-precision", allow(improper_ctypes_definitions))]
47pub extern "C" fn price_sub_assign(mut a: Price, b: Price) {
48    a.sub_assign(b);
49}
nautilus_model/ffi/types/price.rs

nautilus_model/ffi/types/
price.rs
