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use bytes::{Buf, Bytes, BytesMut};
use futures::{Poll, Stream};
use h2;
use http;
use Body;
#[derive(Debug)]
pub struct RecvBody {
inner: h2::RecvStream,
}
#[derive(Debug)]
pub struct Data {
bytes: Bytes,
}
impl RecvBody {
pub(crate) fn new(inner: h2::RecvStream) -> Self {
RecvBody { inner }
}
pub fn stream_id(&self) -> h2::StreamId {
self.inner.stream_id()
}
}
impl Body for RecvBody {
type Data = Data;
type Error = h2::Error;
fn is_end_stream(&self) -> bool {
self.inner.is_end_stream()
}
fn poll_data(&mut self) -> Poll<Option<Self::Data>, h2::Error> {
let data = try_ready!(self.inner.poll()).map(|bytes| {
self.inner
.release_capacity()
.release_capacity(bytes.len())
.expect("flow control error");
Data { bytes }
});
Ok(data.into())
}
fn poll_trailers(&mut self) -> Poll<Option<http::HeaderMap>, h2::Error> {
self.inner.poll_trailers()
}
}
impl Buf for Data {
fn remaining(&self) -> usize {
self.bytes.len()
}
fn bytes(&self) -> &[u8] {
self.bytes.as_ref()
}
fn advance(&mut self, cnt: usize) {
self.bytes.advance(cnt);
}
}
impl From<Data> for Bytes {
fn from(src: Data) -> Self {
src.bytes
}
}
impl From<Data> for BytesMut {
fn from(src: Data) -> Self {
src.bytes.into()
}
}