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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
#![cfg(unix)]
extern crate libc;
use std::io;
use std::os::unix::io::{AsRawFd, IntoRawFd, RawFd};
mod pipe;
mod splice;
pub use splice::splice_loop;
pub use pipe::Pipe;
#[derive(Debug)]
pub struct FileDesc {
fd: RawFd,
close_on_drop: bool,
}
impl FileDesc {
pub fn new(fd: RawFd, close_on_drop: bool) -> FileDesc {
FileDesc {
fd: fd,
close_on_drop: close_on_drop,
}
}
pub fn dup(&self) -> io::Result<FileDesc> {
Ok(FileDesc {
fd: match unsafe { ::libc::dup(self.fd) } {
-1 => return Err(io::Error::last_os_error()),
n => n,
},
close_on_drop: self.close_on_drop,
})
}
}
impl Drop for FileDesc {
fn drop(&mut self) {
if self.close_on_drop {
unsafe { ::libc::close(self.fd); }
}
}
}
impl AsRawFd for FileDesc {
fn as_raw_fd(&self) -> RawFd {
self.fd
}
}
impl IntoRawFd for FileDesc {
fn into_raw_fd(mut self) -> RawFd {
self.close_on_drop = false;
self.fd
}
}