Trait rsfs::unix_ext::OpenOptionsExt [−] [src]

pub trait OpenOptionsExt {
    fn mode(&mut self, mode: u32) -> &mut Self;
    fn custom_flags(&mut self, flags: i32) -> &mut Self;
}

Unix specific rsfs::OpenOptions extensions.

Required Methods

Sets the mode bits that a new file will be opened with.

The default mode for new files is 0o666.

Examples

use rsfs::*;
use rsfs::unix_ext::*;
use rsfs::mem::FS;

let fs = FS::new();

let mut options = fs.new_openopts();
options.mode(0o600); // only owner can read/write
let file = options.open("foo.txt")?;

Pass custom flags to the flags argument of open.

The bits that define the access mode are masked out with O_ACCMODE to ensure they do not interfere with the access mode set by Rust options.

custom_flags can only set flags, not remove flags set by Rust options. This option overwrites any previously set custom flags.

Examples

use rsfs::*;
use rsfs::unix_ext::*;
use rsfs::mem::FS;

let fs = FS::new();
 
let mut options = fs.new_openopts();
options.write(true);
if cfg!(unix) {
    options.custom_flags(0x8000); // O_NOFOLLOW (use libc in real code)
}
let file = options.open("foo.txt")?;

Implementors