[−][src]Trait async_std::os::unix::fs::OpenOptionsExt
This is supported on Unix only.
Unix-specific extensions to OpenOptions
.
Required methods
fn mode(&mut self, mode: u32) -> &mut Self
This is supported on Unix only.
Sets the mode bits that a new file will be created with.
If a new file is created as part of a File::open_opts
call then this
specified mode
will be used as the permission bits for the new file.
If no mode
is set, the default of 0o666
will be used.
The operating system masks out bits with the systems umask
, to produce
the final permissions.
fn custom_flags(&mut self, flags: i32) -> &mut Self
This is supported on Unix only.
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 Rusts options.
Custom flags can only set flags, not remove flags set by Rusts options. This options overwrites any previously set custom flags.