risingwave_common/
operator.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/// Generate a globally unique operator id.
16pub fn unique_operator_id(fragment_id: u32, operator_id: u64) -> u64 {
17    assert!(operator_id <= u32::MAX as u64);
18    ((fragment_id as u64) << 32) + operator_id
19}
20
21/// Generate a globally unique executor id.
22pub fn unique_executor_id(actor_id: u32, operator_id: u64) -> u64 {
23    assert!(operator_id <= u32::MAX as u64);
24    ((actor_id as u64) << 32) + operator_id
25}
26
27pub fn unique_executor_id_from_unique_operator_id(actor_id: u32, unique_operator_id: u64) -> u64 {
28    // keep only low-32 bits
29    let unique_operator_id = unique_operator_id & 0xFFFFFFFF;
30    ((actor_id as u64) << 32) + unique_operator_id
31}
risingwave_common/operator.rs

risingwave_common/
operator.rs
