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Move devtools to std::net (fixes #5355).

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Ms2ger 2015-03-25 11:18:22 +01:00
parent e77c4e2d76
commit 638ce20e6f
8 changed files with 38 additions and 38 deletions
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33
components/devtools/protocol.rs
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@ -8,42 +8,45 @@
use rustc_serialize::{json, Encodable};
use rustc_serialize::json::Json;
use std::old_io::{IoError, OtherIoError, EndOfFile, TcpStream, IoResult};
use std::io::{self, Read, ReadExt, Write, ErrorKind};
use std::net::TcpStream;
use std::num;
pub trait JsonPacketStream {
fn write_json_packet<'a, T: Encodable>(&mut self, obj: &T);
fn read_json_packet(&mut self) -> IoResult<Json>;
fn read_json_packet(&mut self) -> io::Result<Json>;
}
impl JsonPacketStream for TcpStream {
fn write_json_packet<'a, T: Encodable>(&mut self, obj: &T) {
let s = json::encode(obj).unwrap().replace("__type__", "type");
println!("<- {}", s);
self.write_str(&s.len().to_string()).unwrap();
self.write_u8(':' as u8).unwrap();
self.write_str(&s).unwrap();
self.write_all(s.len().to_string().as_bytes()).unwrap();
self.write_all(&[':' as u8]).unwrap();
self.write_all(s.as_bytes()).unwrap();
}
fn read_json_packet<'a>(&mut self) -> IoResult<Json> {
fn read_json_packet<'a>(&mut self) -> io::Result<Json> {
// https://wiki.mozilla.org/Remote_Debugging_Protocol_Stream_Transport
// In short, each JSON packet is [ascii length]:[JSON data of given length]
let mut buffer = vec!();
loop {
let colon = ':' as u8;
match self.read_byte() {
Ok(c) if c != colon => buffer.push(c as u8),
Ok(_) => {
let mut buf = [0];
let byte = match try!(self.read(&mut buf)) {
0 => return Err(io::Error::new(ErrorKind::Other, "EOF", None)),
1 => buf[0],
_ => unreachable!(),
};
match byte {
b':' => {
let packet_len_str = String::from_utf8(buffer).unwrap();
let packet_len = num::from_str_radix(&packet_len_str, 10).unwrap();
let packet_buf = self.read_exact(packet_len).unwrap();
let packet = String::from_utf8(packet_buf).unwrap();
let mut packet = String::new();
self.take(packet_len).read_to_string(&mut packet).unwrap();
println!("{}", packet);
return Ok(Json::from_str(&packet).unwrap())
},
Err(ref e) if e.kind == EndOfFile =>
return Err(IoError { kind: EndOfFile, desc: "EOF", detail: None }),
_ => return Err(IoError { kind: OtherIoError, desc: "connection error", detail: None })
c => buffer.push(c),
}
}
}