1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use resource_task::{ProgressMsg, Metadata, Payload, Done, LoaderTask, start_sending};
use servo_util::io::result;
use std::comm::Chan;
use std::rt::io::file;
use std::rt::io::{FileStream, Reader, EndOfFile, Open, Read, ignore_io_error};
use std::task;
static READ_SIZE: uint = 1024;
fn read_all(reader: &mut FileStream, progress_chan: &Chan<ProgressMsg>)
-> Result<(), ()> {
loop {
match (do result {
let data = reader.read_bytes(READ_SIZE);
progress_chan.send(Payload(data));
}) {
Ok(()) => (),
Err(e) => match e.kind {
EndOfFile => return Ok(()),
_ => return Err(()),
}
}
}
}
pub fn factory() -> LoaderTask {
let f: LoaderTask = |url, start_chan| {
assert!("file" == url.scheme);
let progress_chan = start_sending(start_chan, Metadata::default(url.clone()));
do task::spawn {
// ignore_io_error causes us to get None instead of a task failure.
match ignore_io_error(|| file::open(&url.path.as_slice(), Open, Read)) {
Some(ref mut reader) => {
let res = read_all(reader, &progress_chan);
progress_chan.send(Done(res));
}
None => {
progress_chan.send(Done(Err(())));
}
}
}
};
f
}
|
