common_test_util/
ports.rs

1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
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
15use std::sync::atomic::{AtomicUsize, Ordering};
16
17use once_cell::sync::OnceCell;
18use rand::Rng;
19
20static PORTS: OnceCell<AtomicUsize> = OnceCell::new();
21
22/// Return a unique port(in runtime) for test
23pub fn get_port() -> usize {
24    PORTS
25        .get_or_init(|| AtomicUsize::new(rand::rng().random_range(13000..13800)))
26        .fetch_add(1, Ordering::Relaxed)
27}
common_test_util/ports.rs

common_test_util/
ports.rs
