iggy_binary_protocol/requests/system/
ping.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use crate::WireError;
19use crate::codec::{WireDecode, WireEncode};
20use bytes::BytesMut;
21
22/// `Ping` request. Wire format: empty.
23#[derive(Debug, Clone, PartialEq, Eq)]
24pub struct PingRequest;
25
26impl WireEncode for PingRequest {
27    fn encoded_size(&self) -> usize {
28        0
29    }
30
31    fn encode(&self, _buf: &mut BytesMut) {}
32}
33
34impl WireDecode for PingRequest {
35    fn decode(_buf: &[u8]) -> Result<(Self, usize), WireError> {
36        Ok((Self, 0))
37    }
38}
39
40#[cfg(test)]
41mod tests {
42    use super::*;
43
44    #[test]
45    fn roundtrip() {
46        let req = PingRequest;
47        let bytes = req.to_bytes();
48        assert!(bytes.is_empty());
49        let (decoded, consumed) = PingRequest::decode(&bytes).unwrap();
50        assert_eq!(consumed, 0);
51        assert_eq!(decoded, req);
52    }
53}
iggy_binary_protocol/requests/system/ping.rs

iggy_binary_protocol/requests/system/
ping.rs
