meta_srv/service/
utils.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
15#[macro_export]
16macro_rules! check_leader {
17    ($self:expr, $request:expr, $resp_ty:ty, $msg:expr) => {
18        use common_telemetry::warn;
19        use api::v1::meta::{ResponseHeader, Error};
20        use tonic::Response;
21
22        if !$self.is_leader() {
23            warn!(
24                "The current metasrv is not the leader, but a {} request has reached the meta. Detail: {:?}.",
25                $msg, $request
26            );
27            let mut resp: $resp_ty = Default::default();
28            resp.header = Some(ResponseHeader::failed(
29                Error::is_not_leader(),
30            ));
31            return Ok(Response::new(resp));
32        }
33    };
34}
meta_srv/service/utils.rs

meta_srv/service/
utils.rs
