Struct std::fs::Permissions 1.0.0[−][src]
pub struct Permissions(_);
Representation of the various permissions on a file.
This module only currently provides one bit of information,
Permissions::readonly
, which is exposed on all currently supported
platforms. Unix-specific functionality, such as mode bits, is available
through the PermissionsExt
trait.
Implementations
impl Permissions
[src]
impl Permissions
[src]pub fn readonly(&self) -> bool
[src]
Returns true
if these permissions describe a readonly (unwritable) file.
Examples
use std::fs::File; fn main() -> std::io::Result<()> { let mut f = File::create("foo.txt")?; let metadata = f.metadata()?; assert_eq!(false, metadata.permissions().readonly()); Ok(()) }Run
pub fn set_readonly(&mut self, readonly: bool)
[src]
Modifies the readonly flag for this set of permissions. If the
readonly
argument is true
, using the resulting Permission
will
update file permissions to forbid writing. Conversely, if it’s false
,
using the resulting Permission
will update file permissions to allow
writing.
This operation does not modify the filesystem. To modify the
filesystem use the set_permissions
function.
Examples
use std::fs::File; fn main() -> std::io::Result<()> { let f = File::create("foo.txt")?; let metadata = f.metadata()?; let mut permissions = metadata.permissions(); permissions.set_readonly(true); // filesystem doesn't change assert_eq!(false, metadata.permissions().readonly()); // just this particular `permissions`. assert_eq!(true, permissions.readonly()); Ok(()) }Run
Trait Implementations
impl Clone for Permissions
[src]
impl Clone for Permissions
[src]fn clone(&self) -> Permissions
[src]
pub fn clone_from(&mut self, source: &Self)
[src]
impl PartialEq<Permissions> for Permissions
[src]
impl PartialEq<Permissions> for Permissions
[src]fn eq(&self, other: &Permissions) -> bool
[src]
fn ne(&self, other: &Permissions) -> bool
[src]
impl PermissionsExt for Permissions
1.1.0[src]
impl PermissionsExt for Permissions
1.1.0[src]This is supported on Unix only.
impl Eq for Permissions
[src]
impl StructuralEq for Permissions
[src]
impl StructuralPartialEq for Permissions
[src]
Auto Trait Implementations
impl RefUnwindSafe for Permissions
impl Send for Permissions
impl Sync for Permissions
impl Unpin for Permissions
impl UnwindSafe for Permissions
Blanket Implementations
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
impl<T> Borrow<T> for T where
T: ?Sized,
[src]pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]
Notable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W
[src]
Notable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<R: Read + ?Sized> Read for &mut Rimpl<W: Write + ?Sized> Write for &mut W