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Merge pull request #1038 from hyperium/headers-mem-slice

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use MemSlice in Headers
This commit is contained in:
Sean McArthur
2017-01-27 20:01:37 -08:00
committed by GitHub
parent 5c890321ee 61364d245b
commit d771096455
14 changed files with 376 additions and 166 deletions
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5
src/header/common/content_length.rs
View File

@@ -40,6 +40,7 @@ impl Header for ContentLength {
static NAME: &'static str = "Content-Length";
NAME
}
fn parse_header(raw: &Raw) -> ::Result<ContentLength> {
// If multiple Content-Length headers were sent, everything can still
// be alright if they all contain the same value, and all parse
@@ -49,9 +50,9 @@ impl Header for ContentLength {
.fold(None, |prev, x| {
match (prev, x) {
(None, x) => Some(x),
(e@Some(Err(_)), _ ) => e,
(e @ Some(Err(_)), _ ) => e,
(Some(Ok(prev)), Ok(x)) if prev == x => Some(Ok(prev)),
_ => Some(Err(::Error::Header))
_ => Some(Err(::Error::Header)),
}
})
.unwrap_or(Err(::Error::Header))

14
src/header/common/retry_after.rs
View File

@@ -141,9 +141,7 @@ impl Header for RetryAfter {
#[cfg(test)]
mod tests {
extern crate httparse;
use header::{Header, Headers};
use header::Header;
use header::shared::HttpDate;
use time::{Duration};
@@ -179,17 +177,15 @@ mod tests {
#[test]
fn hyper_headers_from_raw_delay() {
let headers = Headers::from_raw(&[httparse::Header { name: "Retry-After", value: b"300" }]).unwrap();
let retry_after = headers.get::<RetryAfter>().unwrap();
assert_eq!(retry_after, &RetryAfter::Delay(Duration::seconds(300)));
let retry_after = RetryAfter::parse_header(&b"300".to_vec().into()).unwrap();
assert_eq!(retry_after, RetryAfter::Delay(Duration::seconds(300)));
}
#[test]
fn hyper_headers_from_raw_datetime() {
let headers = Headers::from_raw(&[httparse::Header { name: "Retry-After", value: b"Sun, 06 Nov 1994 08:49:37 GMT" }]).unwrap();
let retry_after = headers.get::<RetryAfter>().unwrap();
let retry_after = RetryAfter::parse_header(&b"Sun, 06 Nov 1994 08:49:37 GMT".to_vec().into()).unwrap();
let expected = "Sun, 06 Nov 1994 08:49:37 GMT".parse::<HttpDate>().unwrap();
assert_eq!(retry_after, &RetryAfter::DateTime(expected.0));
assert_eq!(retry_after, RetryAfter::DateTime(expected.0));
}
}

5
src/header/internals/vec_map.rs
View File

@@ -4,9 +4,9 @@ pub struct VecMap<K, V> {
}
impl<K: PartialEq, V> VecMap<K, V> {
pub fn new() -> VecMap<K, V> {
pub fn with_capacity(cap: usize) -> VecMap<K, V> {
VecMap {
vec: Vec::new()
vec: Vec::with_capacity(cap)
}
}
@@ -43,6 +43,7 @@ impl<K: PartialEq, V> VecMap<K, V> {
}
pub fn len(&self) -> usize { self.vec.len() }
pub fn iter(&self) -> ::std::slice::Iter<(K, V)> {
self.vec.iter()
}

104
src/header/mod.rs
View File

@@ -80,7 +80,6 @@ use std::borrow::{Cow, ToOwned};
use std::iter::{FromIterator, IntoIterator};
use std::{mem, fmt};
use httparse;
use unicase::UniCase;
use self::internals::{Item, VecMap, Entry};
@@ -88,6 +87,7 @@ use self::internals::{Item, VecMap, Entry};
pub use self::shared::*;
pub use self::common::*;
pub use self::raw::Raw;
use http::buf::MemSlice;
mod common;
mod internals;
@@ -346,31 +346,17 @@ literals! {
impl Headers {
/// Creates a new, empty headers map.
#[inline]
pub fn new() -> Headers {
Headers {
data: VecMap::new()
}
Headers::with_capacity(0)
}
#[doc(hidden)]
pub fn from_raw(raw: &[httparse::Header]) -> ::Result<Headers> {
let mut headers = Headers::new();
for header in raw {
trace!("raw header: {:?}={:?}", header.name, &header.value[..]);
let name = HeaderName(UniCase(maybe_literal(header.name)));
let trim = header.value.iter().rev().take_while(|&&x| x == b' ').count();
let value = &header.value[.. header.value.len() - trim];
match headers.data.entry(name) {
Entry::Vacant(entry) => {
entry.insert(Item::new_raw(self::raw::parsed(value)));
}
Entry::Occupied(entry) => {
entry.into_mut().mut_raw().push(value);
}
};
/// Creates a new `Headers` struct with space reserved for `len` headers.
#[inline]
pub fn with_capacity(len: usize) -> Headers {
Headers {
data: VecMap::with_capacity(len)
}
Ok(headers)
}
/// Set a header field to the corresponding value.
@@ -586,6 +572,24 @@ impl<'a> Extend<HeaderView<'a>> for Headers {
}
}
impl<'a> Extend<(&'a str, MemSlice)> for Headers {
fn extend<I: IntoIterator<Item=(&'a str, MemSlice)>>(&mut self, iter: I) {
for (name, value) in iter {
let name = HeaderName(UniCase(maybe_literal(name)));
//let trim = header.value.iter().rev().take_while(|&&x| x == b' ').count();
match self.data.entry(name) {
Entry::Vacant(entry) => {
entry.insert(Item::new_raw(self::raw::parsed(value)));
}
Entry::Occupied(entry) => {
self::raw::push(entry.into_mut().mut_raw(), value);
}
};
}
}
}
impl<'a> FromIterator<HeaderView<'a>> for Headers {
fn from_iter<I: IntoIterator<Item=HeaderView<'a>>>(iter: I) -> Headers {
let mut headers = Headers::new();
@@ -658,37 +662,25 @@ mod tests {
use mime::SubLevel::Plain;
use super::{Headers, Header, Raw, ContentLength, ContentType,
Accept, Host, qitem};
use httparse;
#[cfg(feature = "nightly")]
use test::Bencher;
// Slice.position_elem was unstable
fn index_of(slice: &[u8], byte: u8) -> Option<usize> {
for (index, &b) in slice.iter().enumerate() {
if b == byte {
return Some(index);
}
}
None
}
macro_rules! raw {
($($line:expr),*) => ({
[$({
let line = $line;
let pos = index_of(line, b':').expect("raw splits on ':', not found");
httparse::Header {
name: ::std::str::from_utf8(&line[..pos]).unwrap(),
value: &line[pos + 2..]
}
}),*]
macro_rules! make_header {
($name:expr, $value:expr) => ({
let mut headers = Headers::new();
headers.set_raw(String::from_utf8($name.to_vec()).unwrap(), $value.to_vec());
headers
});
($text:expr) => ({
let bytes = $text;
let colon = bytes.iter().position(|&x| x == b':').unwrap();
make_header!(&bytes[..colon], &bytes[colon + 2..])
})
}
#[test]
fn test_from_raw() {
let headers = Headers::from_raw(&raw!(b"Content-Length: 10")).unwrap();
let headers = make_header!(b"Content-Length", b"10");
assert_eq!(headers.get(), Some(&ContentLength(10)));
}
@@ -738,20 +730,20 @@ mod tests {
#[test]
fn test_different_structs_for_same_header() {
let headers = Headers::from_raw(&raw!(b"Content-Length: 10")).unwrap();
let headers = make_header!(b"Content-Length: 10");
assert_eq!(headers.get::<ContentLength>(), Some(&ContentLength(10)));
assert_eq!(headers.get::<CrazyLength>(), Some(&CrazyLength(Some(false), 10)));
}
#[test]
fn test_trailing_whitespace() {
let headers = Headers::from_raw(&raw!(b"Content-Length: 10 ")).unwrap();
let headers = make_header!(b"Content-Length: 10 ");
assert_eq!(headers.get::<ContentLength>(), Some(&ContentLength(10)));
}
#[test]
fn test_multiple_reads() {
let headers = Headers::from_raw(&raw!(b"Content-Length: 10")).unwrap();
let headers = make_header!(b"Content-Length: 10");
let ContentLength(one) = *headers.get::<ContentLength>().unwrap();
let ContentLength(two) = *headers.get::<ContentLength>().unwrap();
assert_eq!(one, two);
@@ -759,15 +751,16 @@ mod tests {
#[test]
fn test_different_reads() {
let headers = Headers::from_raw(
&raw!(b"Content-Length: 10", b"Content-Type: text/plain")).unwrap();
let mut headers = Headers::new();
headers.set_raw("Content-Length", "10");
headers.set_raw("Content-Type", "text/plain");
let ContentLength(_) = *headers.get::<ContentLength>().unwrap();
let ContentType(_) = *headers.get::<ContentType>().unwrap();
}
#[test]
fn test_get_mutable() {
let mut headers = Headers::from_raw(&raw!(b"Content-Length: 10")).unwrap();
let mut headers = make_header!(b"Content-Length: 10");
*headers.get_mut::<ContentLength>().unwrap() = ContentLength(20);
assert_eq!(headers.get_raw("content-length").unwrap(), &[b"20".to_vec()][..]);
assert_eq!(*headers.get::<ContentLength>().unwrap(), ContentLength(20));
@@ -786,7 +779,7 @@ mod tests {
#[test]
fn test_headers_to_string_raw() {
let mut headers = Headers::from_raw(&raw!(b"Content-Length: 10")).unwrap();
let mut headers = make_header!(b"Content-Length: 10");
headers.set_raw("x-foo", vec![b"foo".to_vec(), b"bar".to_vec()]);
let s = headers.to_string();
assert_eq!(s, "Content-Length: 10\r\nx-foo: foo\r\nx-foo: bar\r\n");
@@ -900,13 +893,6 @@ mod tests {
})
}
#[cfg(feature = "nightly")]
#[bench]
fn bench_headers_from_raw(b: &mut Bencher) {
let raw = raw!(b"Content-Length: 10");
b.iter(|| Headers::from_raw(&raw).unwrap())
}
#[cfg(feature = "nightly")]
#[bench]
fn bench_headers_get(b: &mut Bencher) {

4
src/header/parsing.rs
View File

@@ -21,7 +21,7 @@ pub fn from_one_raw_str<T: str::FromStr>(raw: &Raw) -> ::Result<T> {
/// Reads a raw string into a value.
pub fn from_raw_str<T: str::FromStr>(raw: &[u8]) -> ::Result<T> {
let s = try!(str::from_utf8(raw));
let s = try!(str::from_utf8(raw)).trim();
T::from_str(s).or(Err(::Error::Header))
}
@@ -36,7 +36,7 @@ pub fn from_comma_delimited<T: str::FromStr>(raw: &Raw) -> ::Result<Vec<T>> {
"" => None,
y => Some(y)
})
.filter_map(|x| x.parse().ok()))
.filter_map(|x| x.trim().parse().ok()))
}
Ok(result)
}

102
src/header/raw.rs
View File

@@ -1,5 +1,6 @@
use std::borrow::Cow;
use std::fmt;
use http::buf::MemSlice;
/// A raw header value.
#[derive(Clone, PartialEq, Eq)]
@@ -19,8 +20,8 @@ impl Raw {
#[inline]
pub fn one(&self) -> Option<&[u8]> {
match self.0 {
Lines::One(ref line) => Some(line),
Lines::Many(ref lines) if lines.len() == 1 => Some(&lines[0]),
Lines::One(ref line) => Some(line.as_ref()),
Lines::Many(ref lines) if lines.len() == 1 => Some(lines[0].as_ref()),
_ => None
}
}
@@ -29,37 +30,42 @@ impl Raw {
#[inline]
pub fn iter(&self) -> RawLines {
RawLines {
inner: match self.0 {
Lines::One(ref line) => unsafe {
::std::slice::from_raw_parts(line, 1)
}.iter(),
Lines::Many(ref lines) => lines.iter()
}
inner: &self.0,
pos: 0,
}
}
/// Append a line to this `Raw` header value.
pub fn push(&mut self, val: &[u8]) {
self.push_line(maybe_literal(val.into()));
}
fn push_line(&mut self, line: Line) {
let lines = ::std::mem::replace(&mut self.0, Lines::Many(Vec::new()));
match lines {
Lines::One(line) => {
self.0 = Lines::Many(vec![line, maybe_literal(val.into())]);
Lines::One(one) => {
self.0 = Lines::Many(vec![one, line]);
}
Lines::Many(mut lines) => {
lines.push(maybe_literal(val.into()));
lines.push(line);
self.0 = Lines::Many(lines);
}
}
}
}
#[derive(Clone, PartialEq, Eq)]
#[derive(Debug, Clone, PartialEq, Eq)]
enum Lines {
One(Line),
Many(Vec<Line>)
Many(Vec<Line>),
}
type Line = Cow<'static, [u8]>;
#[derive(Debug, Clone, PartialEq, Eq)]
enum Line {
Static(&'static [u8]),
Owned(Vec<u8>),
Shared(MemSlice),
}
fn eq<A: AsRef<[u8]>, B: AsRef<[u8]>>(a: &[A], b: &[B]) -> bool {
if a.len() != b.len() {
@@ -123,24 +129,59 @@ impl From<String> for Raw {
impl From<Vec<u8>> for Raw {
#[inline]
fn from(val: Vec<u8>) -> Raw {
Raw(Lines::One(Cow::Owned(val)))
Raw(Lines::One(Line::from(val)))
}
}
impl From<&'static str> for Raw {
fn from(val: &'static str) -> Raw {
Raw(Lines::One(Cow::Borrowed(val.as_bytes())))
Raw(Lines::One(Line::Static(val.as_bytes())))
}
}
impl From<&'static [u8]> for Raw {
fn from(val: &'static [u8]) -> Raw {
Raw(Lines::One(Cow::Borrowed(val)))
Raw(Lines::One(Line::Static(val)))
}
}
pub fn parsed(val: &[u8]) -> Raw {
Raw(Lines::One(maybe_literal(val.into())))
impl From<MemSlice> for Raw {
#[inline]
fn from(val: MemSlice) -> Raw {
Raw(Lines::One(Line::Shared(val)))
}
}
impl From<Vec<u8>> for Line {
#[inline]
fn from(val: Vec<u8>) -> Line {
Line::Owned(val)
}
}
impl From<MemSlice> for Line {
#[inline]
fn from(val: MemSlice) -> Line {
Line::Shared(val)
}
}
impl AsRef<[u8]> for Line {
fn as_ref(&self) -> &[u8] {
match *self {
Line::Static(ref s) => s,
Line::Owned(ref v) => v.as_ref(),
Line::Shared(ref m) => m.as_ref(),
}
}
}
pub fn parsed(val: MemSlice) -> Raw {
Raw(Lines::One(From::from(val)))
}
pub fn push(raw: &mut Raw, val: MemSlice) {
raw.push_line(Line::from(val));
}
impl fmt::Debug for Raw {
@@ -154,6 +195,7 @@ impl fmt::Debug for Raw {
impl ::std::ops::Index<usize> for Raw {
type Output = [u8];
fn index(&self, idx: usize) -> &[u8] {
match self.0 {
Lines::One(ref line) => if idx == 0 {
@@ -168,12 +210,12 @@ impl ::std::ops::Index<usize> for Raw {
macro_rules! literals {
($($len:expr => $($value:expr),+;)+) => (
fn maybe_literal<'a>(s: Cow<'a, [u8]>) -> Cow<'static, [u8]> {
fn maybe_literal<'a>(s: Cow<'a, [u8]>) -> Line {
match s.len() {
$($len => {
$(
if s.as_ref() == $value {
return Cow::Borrowed($value);
return Line::Static($value);
}
)+
})+
@@ -181,7 +223,7 @@ macro_rules! literals {
_ => ()
}
Cow::Owned(s.into_owned())
Line::from(s.into_owned())
}
#[test]
@@ -216,7 +258,8 @@ impl<'a> IntoIterator for &'a Raw {
#[derive(Debug)]
pub struct RawLines<'a> {
inner: ::std::slice::Iter<'a, Cow<'static, [u8]>>
inner: &'a Lines,
pos: usize,
}
impl<'a> Iterator for RawLines<'a> {
@@ -224,6 +267,17 @@ impl<'a> Iterator for RawLines<'a> {
#[inline]
fn next(&mut self) -> Option<&'a [u8]> {
self.inner.next().map(AsRef::as_ref)
let current_pos = self.pos;
self.pos += 1;
match *self.inner {
Lines::One(ref line) => {
if current_pos == 0 {
Some(line.as_ref())
} else {
None
}
}
Lines::Many(ref lines) => lines.get(current_pos).map(|l| l.as_ref()),
}
}
}

175
src/http/buf.rs
View File

@@ -1,13 +1,14 @@
use std::cell::UnsafeCell;
use std::borrow::Cow;
use std::cell::{Cell, UnsafeCell};
use std::fmt;
use std::io::{self, Read};
use std::ops::{Deref, Range, RangeFrom, RangeTo, RangeFull};
use std::ops::{Index, Range, RangeFrom, RangeTo, RangeFull};
use std::ptr;
use std::sync::Arc;
pub struct MemBuf {
buf: Arc<UnsafeCell<Vec<u8>>>,
start: usize,
start: Cell<usize>,
end: usize,
}
@@ -19,13 +20,13 @@ impl MemBuf {
pub fn with_capacity(cap: usize) -> MemBuf {
MemBuf {
buf: Arc::new(UnsafeCell::new(vec![0; cap])),
start: 0,
start: Cell::new(0),
end: 0,
}
}
pub fn bytes(&self) -> &[u8] {
&self.buf()[self.start..self.end]
&self.buf()[self.start.get()..self.end]
}
pub fn is_empty(&self) -> bool {
@@ -33,7 +34,7 @@ impl MemBuf {
}
pub fn len(&self) -> usize {
self.end - self.start
self.end - self.start.get()
}
pub fn capacity(&self) -> usize {
@@ -41,20 +42,21 @@ impl MemBuf {
}
pub fn read_from<R: Read>(&mut self, io: &mut R) -> io::Result<usize> {
let start = self.end - self.start;
let start = self.end - self.start.get();
let n = try!(io.read(&mut self.buf_mut()[start..]));
self.end += n;
Ok(n)
}
pub fn slice(&mut self, len: usize) -> MemSlice {
assert!(self.end - self.start >= len);
let start = self.start;
self.start += len;
pub fn slice(&self, len: usize) -> MemSlice {
assert!(self.end - self.start.get() >= len);
let start = self.start.get();
let end = start + len;
self.start.set(end);
MemSlice {
buf: self.buf.clone(),
start: start,
end: self.start,
end: end,
}
}
@@ -67,18 +69,18 @@ impl MemBuf {
}
let is_unique = Arc::get_mut(&mut self.buf).is_some();
trace!("MemBuf::reserve {} access", if is_unique { "unique" } else { "shared" });
if is_unique && remaining + self.start >= needed {
if is_unique && remaining + self.start.get() >= needed {
// we have unique access, we can mutate this vector
trace!("MemBuf::reserve unique access, shifting");
unsafe {
let mut buf = &mut *self.buf.get();
let len = self.len();
ptr::copy(
buf.as_ptr().offset(self.start as isize),
buf.as_ptr().offset(self.start.get() as isize),
buf.as_mut_ptr(),
len
);
self.start = 0;
self.start.set(0);
self.end = len;
}
} else if is_unique {
@@ -109,7 +111,7 @@ impl MemBuf {
match Arc::get_mut(&mut self.buf) {
Some(_) => {
trace!("MemBuf::reset was unique, re-using");
self.start = 0;
self.start.set(0);
self.end = 0;
},
None => {
@@ -119,13 +121,19 @@ impl MemBuf {
}
}
#[cfg(all(feature = "nightly", test))]
pub fn restart(&mut self) {
Arc::get_mut(&mut self.buf).unwrap();
self.start.set(0);
}
fn buf_mut(&mut self) -> &mut [u8] {
// The contract here is that we NEVER have a MemSlice that exists
// with slice.end > self.start.
// In other words, we should *ALWAYS* be the only instance that can
// look at the bytes on the right side of self.start.
unsafe {
&mut (*self.buf.get())[self.start..]
&mut (*self.buf.get())[self.start.get()..]
}
}
@@ -169,9 +177,9 @@ fn test_grow_zerofill() {
impl fmt::Debug for MemBuf {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("MemBuf")
.field("start", &self.start)
.field("start", &self.start.get())
.field("end", &self.end)
.field("buf", &&self.buf()[self.start..self.end])
.field("buf", &&self.buf()[self.start.get()..self.end])
.finish()
}
}
@@ -182,7 +190,7 @@ impl From<Vec<u8>> for MemBuf {
vec.shrink_to_fit();
MemBuf {
buf: Arc::new(UnsafeCell::new(vec)),
start: 0,
start: Cell::new(0),
end: end,
}
}
@@ -203,23 +211,118 @@ impl MemSlice {
}
}
pub fn len(&self) -> usize {
self.get().len()
}
pub fn is_empty(&self) -> bool {
self.get().is_empty()
}
pub fn slice<S: Slice>(&self, range: S) -> MemSlice {
range.slice(self)
}
}
impl fmt::Debug for MemSlice {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(&**self, f)
fn get(&self) -> &[u8] {
unsafe { &(*self.buf.get())[self.start..self.end] }
}
}
impl Deref for MemSlice {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
&(*self.buf.get())[self.start..self.end]
impl AsRef<[u8]> for MemSlice {
fn as_ref(&self) -> &[u8] {
self.get()
}
}
impl fmt::Debug for MemSlice {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(&self.get(), f)
}
}
impl Index<usize> for MemSlice {
type Output = u8;
fn index(&self, i: usize) -> &u8 {
&self.get()[i]
}
}
impl<'a> From<&'a [u8]> for MemSlice {
fn from(v: &'a [u8]) -> MemSlice {
MemSlice {
buf: Arc::new(UnsafeCell::new(v.to_vec())),
start: 0,
end: v.len(),
}
}
}
impl From<Vec<u8>> for MemSlice {
fn from(v: Vec<u8>) -> MemSlice {
let len = v.len();
MemSlice {
buf: Arc::new(UnsafeCell::new(v)),
start: 0,
end: len,
}
}
}
impl<'a> From<&'a str> for MemSlice {
fn from(v: &'a str) -> MemSlice {
let v = v.as_bytes();
MemSlice {
buf: Arc::new(UnsafeCell::new(v.to_vec())),
start: 0,
end: v.len(),
}
}
}
impl<'a> From<Cow<'a, [u8]>> for MemSlice {
fn from(v: Cow<'a, [u8]>) -> MemSlice {
let v = v.into_owned();
let len = v.len();
MemSlice {
buf: Arc::new(UnsafeCell::new(v)),
start: 0,
end: len,
}
}
}
impl PartialEq for MemSlice {
fn eq(&self, other: &MemSlice) -> bool {
self.get() == other.get()
}
}
impl PartialEq<[u8]> for MemSlice {
fn eq(&self, other: &[u8]) -> bool {
self.get() == other
}
}
impl PartialEq<str> for MemSlice {
fn eq(&self, other: &str) -> bool {
self.get() == other.as_bytes()
}
}
impl PartialEq<Vec<u8>> for MemSlice {
fn eq(&self, other: &Vec<u8>) -> bool {
self.get() == other.as_slice()
}
}
impl Eq for MemSlice {}
impl Clone for MemSlice {
fn clone(&self) -> MemSlice {
MemSlice {
buf: self.buf.clone(),
start: self.start,
end: self.end,
}
}
}
@@ -296,18 +399,18 @@ mod tests {
#[test]
fn test_mem_slice_slice() {
let mut buf = MemBuf::from(b"Hello World".to_vec());
let buf = MemBuf::from(b"Hello World".to_vec());
let len = buf.len();
let full = buf.slice(len);
assert_eq!(&*full, b"Hello World");
assert_eq!(&*full.slice(6..), b"World");
assert_eq!(&*full.slice(..5), b"Hello");
assert_eq!(&*full.slice(..), b"Hello World");
assert_eq!(full.as_ref(), b"Hello World");
assert_eq!(full.slice(6..).as_ref(), b"World");
assert_eq!(full.slice(..5).as_ref(), b"Hello");
assert_eq!(full.slice(..).as_ref(), b"Hello World");
for a in 0..len {
for b in a..len {
assert_eq!(&*full.slice(a..b), &b"Hello World"[a..b], "{}..{}", a, b);
assert_eq!(full.slice(a..b).as_ref(), &b"Hello World"[a..b], "{}..{}", a, b);
}
}
}

2
src/http/chunk.rs
View File

@@ -69,7 +69,7 @@ impl AsRef<[u8]> for Chunk {
match self.0 {
Inner::Owned(ref vec) => vec,
Inner::Referenced(ref vec) => vec,
Inner::Mem(ref slice) => slice,
Inner::Mem(ref slice) => slice.as_ref(),
Inner::Static(slice) => slice,
}
}

15
src/http/conn.rs
View File

@@ -595,6 +595,21 @@ mod tests {
}
}
#[test]
fn test_conn_parse_partial() {
let good_message = b"GET / HTTP/1.1\r\nHost: foo.bar\r\n\r\n".to_vec();
let io = AsyncIo::new_buf(good_message, 10);
let mut conn = Conn::<_, ServerTransaction>::new(io, Default::default());
assert!(conn.poll().unwrap().is_not_ready());
conn.io.io_mut().block_in(50);
let async = conn.poll().unwrap();
assert!(async.is_ready());
match async {
Async::Ready(Some(Frame::Message { .. })) => (),
f => panic!("frame is not Message: {:?}", f),
}
}
#[test]
fn test_conn_closed_read() {
let io = AsyncIo::new_buf(vec![], 0);

8
src/http/h1/decode.rs
View File

@@ -88,7 +88,7 @@ impl Decoder {
} else {
let to_read = *remaining as usize;
let buf = try!(body.read_mem(to_read));
let num = buf.len() as u64;
let num = buf.as_ref().len() as u64;
trace!("Length read: {}", num);
if num > *remaining {
*remaining = 0;
@@ -399,7 +399,7 @@ mod tests {
let mut mock_buf = &b"10\r\n1234567890abcdef\r\n0\r\n"[..];
let buf = Decoder::chunked().decode(&mut mock_buf).expect("decode");
assert_eq!(16, buf.len());
let result = String::from_utf8(buf.to_vec()).expect("decode String");
let result = String::from_utf8(buf.as_ref().to_vec()).expect("decode String");
assert_eq!("1234567890abcdef", &result);
}
@@ -411,7 +411,7 @@ mod tests {
// normal read
let buf = decoder.decode(&mut mock_buf).expect("decode");
assert_eq!(16, buf.len());
let result = String::from_utf8(buf.to_vec()).expect("decode String");
let result = String::from_utf8(buf.as_ref().to_vec()).expect("decode String");
assert_eq!("1234567890abcdef", &result);
// eof read
@@ -438,7 +438,7 @@ mod tests {
if buf.is_empty() {
break; // eof
}
outs.write(&buf).expect("write buffer");
outs.write(buf.as_ref()).expect("write buffer");
}
Err(e) => match e.kind() {
io::ErrorKind::WouldBlock => {

81
src/http/h1/parse.rs
View File

@@ -6,6 +6,7 @@ use httparse;
use header::{self, Headers, ContentLength, TransferEncoding};
use http::{MessageHead, RawStatus, Http1Transaction, ParseResult, ServerTransaction, ClientTransaction, RequestLine};
use http::h1::{Encoder, Decoder};
use http::buf::{MemBuf, MemSlice};
use method::Method;
use status::StatusCode;
use version::HttpVersion::{Http10, Http11};
@@ -13,7 +14,7 @@ use version::HttpVersion::{Http10, Http11};
const MAX_HEADERS: usize = 100;
const AVERAGE_HEADER_SIZE: usize = 30; // totally scientific
pub fn parse<T: Http1Transaction<Incoming=I>, I>(buf: &[u8]) -> ParseResult<I> {
pub fn parse<T: Http1Transaction<Incoming=I>, I>(buf: &MemBuf) -> ParseResult<I> {
if buf.len() == 0 {
return Ok(None);
}
@@ -25,23 +26,29 @@ impl Http1Transaction for ServerTransaction {
type Incoming = RequestLine;
type Outgoing = StatusCode;
fn parse(buf: &[u8]) -> ParseResult<RequestLine> {
fn parse(buf: &MemBuf) -> ParseResult<RequestLine> {
let mut headers = [httparse::EMPTY_HEADER; MAX_HEADERS];
trace!("Request.parse([Header; {}], [u8; {}])", headers.len(), buf.len());
let mut req = httparse::Request::new(&mut headers);
Ok(match try!(req.parse(buf)) {
Ok(match try!(req.parse(buf.bytes())) {
httparse::Status::Complete(len) => {
trace!("Request.parse Complete({})", len);
let mut headers = Headers::with_capacity(req.headers.len());
let slice = buf.slice(len);
headers.extend(HeadersAsMemSliceIter {
headers: req.headers.iter(),
slice: slice,
});
Some((MessageHead {
version: if req.version.unwrap() == 1 { Http11 } else { Http10 },
subject: RequestLine(
try!(req.method.unwrap().parse()),
try!(req.path.unwrap().parse())
),
headers: try!(Headers::from_raw(req.headers))
headers: headers,
}, len))
},
httparse::Status::Partial => None
}
httparse::Status::Partial => None,
})
}
@@ -112,11 +119,11 @@ impl Http1Transaction for ClientTransaction {
type Incoming = RawStatus;
type Outgoing = RequestLine;
fn parse(buf: &[u8]) -> ParseResult<RawStatus> {
fn parse(buf: &MemBuf) -> ParseResult<RawStatus> {
let mut headers = [httparse::EMPTY_HEADER; MAX_HEADERS];
trace!("Response.parse([Header; {}], [u8; {}])", headers.len(), buf.len());
let mut res = httparse::Response::new(&mut headers);
Ok(match try!(res.parse(buf)) {
Ok(match try!(res.parse(buf.bytes())) {
httparse::Status::Complete(len) => {
trace!("Response.try_parse Complete({})", len);
let code = res.code.unwrap();
@@ -124,10 +131,16 @@ impl Http1Transaction for ClientTransaction {
Some(reason) if reason == res.reason.unwrap() => Cow::Borrowed(reason),
_ => Cow::Owned(res.reason.unwrap().to_owned())
};
let mut headers = Headers::with_capacity(res.headers.len());
let slice = buf.slice(len);
headers.extend(HeadersAsMemSliceIter {
headers: res.headers.iter(),
slice: slice,
});
Some((MessageHead {
version: if res.version.unwrap() == 1 { Http11 } else { Http10 },
subject: RawStatus(code, reason),
headers: try!(Headers::from_raw(res.headers))
headers: headers,
}, len))
},
httparse::Status::Partial => None
@@ -216,6 +229,22 @@ impl Http1Transaction for ClientTransaction {
}
}
struct HeadersAsMemSliceIter<'a> {
headers: ::std::slice::Iter<'a, httparse::Header<'a>>,
slice: MemSlice,
}
impl<'a> Iterator for HeadersAsMemSliceIter<'a> {
type Item = (&'a str, MemSlice);
fn next(&mut self) -> Option<Self::Item> {
self.headers.next().map(|header| {
let value_start = header.value.as_ptr() as usize - self.slice.as_ref().as_ptr() as usize;
let value_end = value_start + header.value.len();
(header.name, self.slice.slice(value_start..value_end))
})
}
}
struct FastWrite<'a>(&'a mut Vec<u8>);
impl<'a> fmt::Write for FastWrite<'a> {
@@ -244,22 +273,23 @@ fn extend(dst: &mut Vec<u8>, data: &[u8]) {
#[cfg(test)]
mod tests {
use http;
use http::buf::MemBuf;
use super::{parse};
#[test]
fn test_parse_request() {
let raw = b"GET /echo HTTP/1.1\r\nHost: hyper.rs\r\n\r\n";
parse::<http::ServerTransaction, _>(raw).unwrap();
let raw = MemBuf::from(b"GET /echo HTTP/1.1\r\nHost: hyper.rs\r\n\r\n".to_vec());
parse::<http::ServerTransaction, _>(&raw).unwrap();
}
#[test]
fn test_parse_raw_status() {
let raw = b"HTTP/1.1 200 OK\r\n\r\n";
let (res, _) = parse::<http::ClientTransaction, _>(raw).unwrap().unwrap();
let raw = MemBuf::from(b"HTTP/1.1 200 OK\r\n\r\n".to_vec());
let (res, _) = parse::<http::ClientTransaction, _>(&raw).unwrap().unwrap();
assert_eq!(res.subject.1, "OK");
let raw = b"HTTP/1.1 200 Howdy\r\n\r\n";
let (res, _) = parse::<http::ClientTransaction, _>(raw).unwrap().unwrap();
let raw = MemBuf::from(b"HTTP/1.1 200 Howdy\r\n\r\n".to_vec());
let (res, _) = parse::<http::ClientTransaction, _>(&raw).unwrap().unwrap();
assert_eq!(res.subject.1, "Howdy");
}
@@ -269,9 +299,26 @@ mod tests {
#[cfg(feature = "nightly")]
#[bench]
fn bench_parse_incoming(b: &mut Bencher) {
let raw = b"GET /echo HTTP/1.1\r\nHost: hyper.rs\r\n\r\n";
let mut raw = MemBuf::from(b"GET /super_long_uri/and_whatever?what_should_we_talk_about/\
I_wonder/Hard_to_write_in_an_uri_after_all/you_have_to_make\
_up_the_punctuation_yourself/how_fun_is_that?test=foo&test1=\
foo1&test2=foo2&test3=foo3&test4=foo4 HTTP/1.1\r\nHost: \
hyper.rs\r\nAccept: a lot of things\r\nAccept-Charset: \
utf8\r\nAccept-Encoding: *\r\nAccess-Control-Allow-\
Credentials: None\r\nAccess-Control-Allow-Origin: None\r\n\
Access-Control-Allow-Methods: None\r\nAccess-Control-Allow-\
Headers: None\r\nContent-Encoding: utf8\r\nContent-Security-\
Policy: None\r\nContent-Type: text/html\r\nOrigin: hyper\
\r\nSec-Websocket-Extensions: It looks super important!\r\n\
Sec-Websocket-Origin: hyper\r\nSec-Websocket-Version: 4.3\r\
\nStrict-Transport-Security: None\r\nUser-Agent: hyper\r\n\
X-Content-Duration: None\r\nX-Content-Security-Policy: None\
\r\nX-DNSPrefetch-Control: None\r\nX-Frame-Options: \
Something important obviously\r\nX-Requested-With: Nothing\
\r\n\r\n".to_vec());
b.iter(|| {
parse::<http::ServerTransaction, _>(raw).unwrap()
parse::<http::ServerTransaction, _>(&raw).unwrap();
raw.restart();
});
}

12
src/http/io.rs
View File

@@ -70,11 +70,11 @@ impl<T: Io> Buffered<T> {
_ => return Err(e.into())
}
}
match try!(parse::<S, _>(self.read_buf.bytes())) {
Some((head, len)) => {
trace!("parsed {} bytes out of {}", len, self.read_buf.len());
self.read_buf.slice(len);
Ok(Some(head))
match try!(parse::<S, _>(&self.read_buf)) {
Some(head) => {
//trace!("parsed {} bytes out of {}", len, self.read_buf.len());
//self.read_buf.slice(len);
Ok(Some(head.0))
},
None => {
if self.read_buf.capacity() >= MAX_BUFFER_SIZE {
@@ -140,7 +140,7 @@ impl<T: Write> Write for Buffered<T> {
}
}
fn parse<T: Http1Transaction<Incoming=I>, I>(rdr: &[u8]) -> ParseResult<I> {
fn parse<T: Http1Transaction<Incoming=I>, I>(rdr: &MemBuf) -> ParseResult<I> {
h1::parse::<T, I>(rdr)
}

6
src/http/mod.rs
View File

@@ -13,9 +13,11 @@ use version::HttpVersion::{Http10, Http11};
pub use self::conn::{Conn, KeepAlive, KA};
pub use self::body::{Body, TokioBody};
pub use self::chunk::Chunk;
use self::buf::MemBuf;
mod body;
mod buf;
#[doc(hidden)]
pub mod buf;
mod chunk;
mod conn;
mod io;
@@ -123,7 +125,7 @@ pub trait Http1Transaction {
type Incoming;
type Outgoing: Default;
//type KeepAlive: KeepAlive;
fn parse(bytes: &[u8]) -> ParseResult<Self::Incoming>;
fn parse(bytes: &MemBuf) -> ParseResult<Self::Incoming>;
fn decoder(head: &MessageHead<Self::Incoming>) -> ::Result<h1::Decoder>;
fn encode(head: &mut MessageHead<Self::Outgoing>, dst: &mut Vec<u8>) -> h1::Encoder;
fn should_set_length(head: &MessageHead<Self::Outgoing>) -> bool;

9
src/mock.rs
View File

@@ -6,7 +6,8 @@ use tokio::io::Io;
#[derive(Debug)]
pub struct Buf {
vec: Vec<u8>
vec: Vec<u8>,
pos: usize,
}
impl Buf {
@@ -17,6 +18,7 @@ impl Buf {
pub fn wrap(vec: Vec<u8>) -> Buf {
Buf {
vec: vec,
pos: 0,
}
}
}
@@ -48,7 +50,10 @@ impl Write for Buf {
impl Read for Buf {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
(&*self.vec).read(buf)
(&self.vec[self.pos..]).read(buf).map(|n| {
self.pos += n;
n
})
}
}