common_meta/ddl/allocator/
wal_options.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::collections::HashMap;
16use std::sync::Arc;
17
18use store_api::storage::RegionNumber;
19
20use crate::error::Result;
21
22pub type WalOptionsAllocatorRef = Arc<dyn WalOptionsAllocator>;
23
24#[async_trait::async_trait]
25pub trait WalOptionsAllocator: Send + Sync {
26    async fn allocate(
27        &self,
28        region_numbers: &[RegionNumber],
29        skip_wal: bool,
30    ) -> Result<HashMap<RegionNumber, String>>;
31}