fdstream/
lib.rs

1extern crate libc;
2
3// copied from libstd/sys/unix/mod.rs and libstd/sys/unix/fd.rs
4pub fn cvt(t: ::libc::ssize_t) -> ::std::io::Result<::libc::ssize_t> {
5    if t == -1 {
6        Err(::std::io::Error::last_os_error())
7    } else {
8        Ok(t)
9    }
10}
11
12#[derive(Clone, Copy)]
13pub struct FdStream {
14    fd : ::libc::c_int,
15}
16
17impl FdStream {
18    pub fn new(fd : ::libc::c_int) -> FdStream {
19        FdStream { fd : fd }
20    }
21}
22
23impl ::std::io::Read for FdStream {
24    fn read(&mut self, buf : &mut [u8]) -> ::std::io::Result<usize> {
25        let ret = try!(cvt(unsafe {
26            ::libc::read(self.fd,
27                         buf.as_mut_ptr() as *mut ::libc::c_void,
28                         buf.len() as ::libc::size_t)
29        }));
30        Ok(ret as usize)
31    }
32}
33
34impl ::std::io::Write for FdStream {
35    fn write(&mut self, buf : &[u8]) -> ::std::io::Result<usize> {
36        let ret = try!(cvt(unsafe {
37            ::libc::write(self.fd,
38                          buf.as_ptr() as *const ::libc::c_void,
39                          buf.len() as ::libc::size_t)
40        }));
41        Ok(ret as usize)
42    }
43    fn flush(&mut self) -> ::std::io::Result<()> { Ok(()) }
44}
fdstream/lib.rs

fdstream/
lib.rs
