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Code Issues Releases Wiki Activity

Preallocate read buffer for h1 codec, #749

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This commit is contained in:
Nikolay Kim
2019-04-02 10:19:56 -07:00
parent 1bd0995d7a
commit c27fbdc35f
3 changed files with 11 additions and 1 deletions
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8
actix-http/src/h1/codec.rs
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@ -19,6 +19,9 @@ use crate::message::{ConnectionType, Head, ResponseHead};
use crate::request::Request;
use crate::response::Response;
const LW: usize = 2 * 1024;
const HW: usize = 32 * 1024;
bitflags! {
struct Flags: u8 {
const HEAD = 0b0000_0001;
@ -105,6 +108,11 @@ impl Decoder for Codec {
type Error = ParseError;
fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
let cap = src.capacity();
if cap < LW {
src.reserve(HW - cap);
}
if self.payload.is_some() {
Ok(match self.payload.as_mut().unwrap().decode(src)? {
Some(PayloadItem::Chunk(chunk)) => Some(Message::Chunk(Some(chunk))),