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use super::*;
use bytes::{Buf, BufMut, BytesMut};
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ResumeOkFrame {
last_received_client_position: u64,
}
impl ResumeOkFrame {
pub const STREAM_ID: u32 = 0;
pub fn new(mut last_received_client_position: u64) -> Self {
debug_assert_max_u63!(last_received_client_position);
last_received_client_position &= MAX_U63;
ResumeOkFrame { last_received_client_position }
}
pub fn last_received_server_position(&self) -> u64 {
self.last_received_client_position
}
}
impl Encode for ResumeOkFrame {
fn encode(&self, buf: &mut BytesMut) {
buf.put_u32(0);
buf.put_u16(FrameType::RESUME_OK.bits());
buf.put_u64(self.last_received_client_position);
}
fn len(&self) -> usize {
14
}
}
impl Decode for ResumeOkFrame {
type Value = Self;
fn decode<B: Buf>(
buf: &mut B,
_stream_id: u32,
_flags: Flags,
) -> Result<Self::Value> {
let last_received_client_position = eat_u63(buf)?;
Ok(ResumeOkFrame { last_received_client_position })
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_codec() {
let lease = ResumeOkFrame::new(1);
let mut buf = BytesMut::new();
lease.encode(&mut buf);
let mut buf = buf.freeze();
let buf_len = buf.len();
assert_eq!(buf_len, 4 + 2 + 8);
let stream_id = eat_stream_id(&mut buf).unwrap();
let (frame_type, flags) = eat_flags(&mut buf).unwrap();
assert_eq!(frame_type, FrameType::RESUME_OK);
assert_eq!(flags, Flags::empty());
let decoded =
ResumeOkFrame::decode(&mut buf, stream_id, flags).unwrap();
assert_eq!(decoded, lease);
assert_eq!(lease.len(), buf_len);
assert_eq!(decoded.len(), buf_len);
}
}