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
15use risingwave_common::id::{ActorId, FragmentId};
16
17/// Generate a globally unique operator id.
18pub fn unique_operator_id(fragment_id: FragmentId, operator_id: u64) -> u64 {
19    assert!(operator_id <= u32::MAX as u64);
20    ((fragment_id.as_raw_id() as u64) << 32) + operator_id
21}
22
23/// Generate a globally unique executor id.
24pub fn unique_executor_id(actor_id: ActorId, operator_id: u64) -> u64 {
25    assert!(operator_id <= u32::MAX as u64);
26    ((actor_id.as_raw_id() as u64) << 32) + operator_id
27}
28
29/// Decompose a unique executor id into actor id and operator id.
30pub fn unique_executor_id_into_parts(unique_executor_id: u64) -> (u32, u32) {
31    let actor_id = (unique_executor_id >> 32) as u32;
32    let operator_id = (unique_executor_id & 0xFFFFFFFF) as u32;
33    (actor_id, operator_id)
34}
35
36pub fn unique_operator_id_into_parts(unique_operator_id: u64) -> (u32, u32) {
37    let fragment_id = (unique_operator_id >> 32) as u32;
38    let operator_id = (unique_operator_id & 0xFFFFFFFF) as u32;
39    (fragment_id, operator_id)
40}
41
42pub fn unique_executor_id_from_unique_operator_id(
43    actor_id: ActorId,
44    unique_operator_id: u64,
45) -> u64 {
46    // keep only low-32 bits
47    let unique_operator_id = unique_operator_id & 0xFFFFFFFF;
48    ((actor_id.as_raw_id() as u64) << 32) + unique_operator_id
49}
risingwave_common/operator.rs

risingwave_common/
operator.rs
