risingwave_stream/common/
rate_limit.rs

1// Copyright 2025 RisingWave Labs
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
15/// Get the rate-limited max chunk size.
16pub(crate) fn limited_chunk_size(rate_limit_burst: Option<u32>) -> usize {
17    let config_chunk_size = crate::config::chunk_size();
18    rate_limit_burst
19        .map(|burst| config_chunk_size.min(burst as usize))
20        .unwrap_or(config_chunk_size)
21}