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Preallocate read buffer for h1 codec, #749

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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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2
actix-http/CHANGES.md
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@ -6,6 +6,8 @@
* Rust 1.31.0 compatibility
* Preallocate read buffer for h1 codec
## [0.1.0-alpha.2] - 2019-03-29

2
actix-http/Cargo.toml
View file

@ -1,6 +1,6 @@
[package]
name = "actix-http"
version = "0.1.0-alpha.2"
version = "0.1.0-alpha.3"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix http primitives"
readme = "README.md"

8
actix-http/src/h1/codec.rs
View file

@ -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))),