nautilus_model/ffi/identifiers/
venue.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::ffi::c_char;
17
18use nautilus_core::ffi::string::cstr_as_str;
19
20use crate::{identifiers::Venue, venues::VENUE_MAP};
21
22/// Returns a Nautilus identifier from a C string pointer.
23///
24/// # Safety
25///
26/// - Assumes `ptr` is a valid C string pointer.
27#[no_mangle]
28pub unsafe extern "C" fn venue_new(ptr: *const c_char) -> Venue {
29    Venue::from(cstr_as_str(ptr))
30}
31
32#[no_mangle]
33pub extern "C" fn venue_hash(id: &Venue) -> u64 {
34    id.inner().precomputed_hash()
35}
36
37#[no_mangle]
38pub extern "C" fn venue_is_synthetic(venue: &Venue) -> u8 {
39    u8::from(venue.is_synthetic())
40}
41
42/// # Safety
43///
44/// - Assumes `code_ptr` is borrowed from a valid Python UTF-8 `str`.
45#[no_mangle]
46pub unsafe extern "C" fn venue_code_exists(code_ptr: *const c_char) -> u8 {
47    let code = cstr_as_str(code_ptr);
48    u8::from(VENUE_MAP.lock().unwrap().contains_key(code))
49}
50
51/// # Safety
52///
53/// - Assumes `code_ptr` is borrowed from a valid Python UTF-8 `str`.
54#[no_mangle]
55pub unsafe extern "C" fn venue_from_cstr_code(code_ptr: *const c_char) -> Venue {
56    let code = cstr_as_str(code_ptr);
57    Venue::from_code(code).unwrap()
58}
nautilus_model/ffi/identifiers/venue.rs

nautilus_model/ffi/identifiers/
venue.rs
