hreq_h2/frame/
go_away.rs

1use std::fmt;
2
3use bytes::{BufMut, Bytes};
4
5use crate::frame::{self, Error, Head, Kind, Reason, StreamId};
6
7#[derive(Clone, Eq, PartialEq)]
8pub struct GoAway {
9    last_stream_id: StreamId,
10    error_code: Reason,
11    #[allow(unused)]
12    debug_data: Bytes,
13}
14
15impl GoAway {
16    pub fn new(last_stream_id: StreamId, reason: Reason) -> Self {
17        GoAway {
18            last_stream_id,
19            error_code: reason,
20            debug_data: Bytes::new(),
21        }
22    }
23
24    pub fn last_stream_id(&self) -> StreamId {
25        self.last_stream_id
26    }
27
28    pub fn reason(&self) -> Reason {
29        self.error_code
30    }
31
32    #[cfg(feature = "unstable")]
33    pub fn debug_data(&self) -> &[u8] {
34        &self.debug_data
35    }
36
37    pub fn load(payload: &[u8]) -> Result<GoAway, Error> {
38        if payload.len() < 8 {
39            return Err(Error::BadFrameSize);
40        }
41
42        let (last_stream_id, _) = StreamId::parse(&payload[..4]);
43        let error_code = unpack_octets_4!(payload, 4, u32);
44        let debug_data = Bytes::copy_from_slice(&payload[8..]);
45
46        Ok(GoAway {
47            last_stream_id,
48            error_code: error_code.into(),
49            debug_data,
50        })
51    }
52
53    pub fn encode<B: BufMut>(&self, dst: &mut B) {
54        log::trace!("encoding GO_AWAY; code={:?}", self.error_code);
55        let head = Head::new(Kind::GoAway, 0, StreamId::zero());
56        head.encode(8, dst);
57        dst.put_u32(self.last_stream_id.into());
58        dst.put_u32(self.error_code.into());
59    }
60}
61
62impl<B> From<GoAway> for frame::Frame<B> {
63    fn from(src: GoAway) -> Self {
64        frame::Frame::GoAway(src)
65    }
66}
67
68impl fmt::Debug for GoAway {
69    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
70        let mut builder = f.debug_struct("GoAway");
71        builder.field("error_code", &self.error_code);
72        builder.field("last_stream_id", &self.last_stream_id);
73
74        if !self.debug_data.is_empty() {
75            builder.field("debug_data", &self.debug_data);
76        }
77
78        builder.finish()
79    }
80}
hreq_h2/frame/go_away.rs

hreq_h2/frame/
go_away.rs
