mirror of
https://github.com/denoland/deno.git
synced 2024-11-23 15:16:54 -05:00
1848c7e361
RUSTFLAGS take precedence over `target.<triple>.rustflags`. Therefore, setting the env var globally in CI would always override whatever linter rules are allowed or denied in .cargo/config.toml. With this change, we ensure that problems are detected both in CI and locally, using either cargo clippy or lint.js.
81 lines
2.2 KiB
Rust
81 lines
2.2 KiB
Rust
// Forked from https://github.com/Thomasdezeeuw/sendfile/blob/024f82cd4dede9048392a5bd6d8afcd4d5aa83d5/src/lib.rs
|
|
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
|
|
|
|
use std::future::Future;
|
|
use std::io;
|
|
use std::os::unix::io::RawFd;
|
|
use std::pin::Pin;
|
|
use std::task::{self, Poll};
|
|
|
|
pub struct SendFile {
|
|
pub io: (RawFd, RawFd),
|
|
pub written: usize,
|
|
}
|
|
|
|
impl SendFile {
|
|
#[inline]
|
|
pub fn try_send(&mut self) -> Result<usize, std::io::Error> {
|
|
#[cfg(target_os = "linux")]
|
|
{
|
|
// This is the maximum the Linux kernel will write in a single call.
|
|
let count = 0x7ffff000;
|
|
let mut offset = self.written as libc::off_t;
|
|
|
|
let res =
|
|
// SAFETY: call to libc::sendfile()
|
|
unsafe { libc::sendfile(self.io.1, self.io.0, &mut offset, count) };
|
|
if res == -1 {
|
|
Err(io::Error::last_os_error())
|
|
} else {
|
|
self.written = offset as usize;
|
|
Ok(res as usize)
|
|
}
|
|
}
|
|
#[cfg(target_os = "macos")]
|
|
{
|
|
// Send all bytes.
|
|
let mut length = 0;
|
|
// On macOS `length` is value-result parameter. It determines the number
|
|
// of bytes to write and returns the number of bytes written also in
|
|
// case of `EAGAIN` errors.
|
|
// SAFETY: call to libc::sendfile()
|
|
let res = unsafe {
|
|
libc::sendfile(
|
|
self.io.0,
|
|
self.io.1,
|
|
self.written as libc::off_t,
|
|
&mut length,
|
|
std::ptr::null_mut(),
|
|
0,
|
|
)
|
|
};
|
|
self.written += length as usize;
|
|
if res == -1 {
|
|
Err(io::Error::last_os_error())
|
|
} else {
|
|
Ok(length as usize)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Future for SendFile {
|
|
type Output = Result<(), std::io::Error>;
|
|
|
|
fn poll(
|
|
mut self: Pin<&mut Self>,
|
|
_: &mut task::Context<'_>,
|
|
) -> Poll<Self::Output> {
|
|
loop {
|
|
match self.try_send() {
|
|
Ok(0) => break Poll::Ready(Ok(())),
|
|
Ok(_) => continue,
|
|
Err(ref err) if err.kind() == io::ErrorKind::WouldBlock => {
|
|
break Poll::Pending
|
|
}
|
|
Err(ref err) if err.kind() == io::ErrorKind::Interrupted => continue, // Try again.
|
|
Err(err) => break Poll::Ready(Err(err)),
|
|
}
|
|
}
|
|
}
|
|
}
|