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 Permissions1.1.0[src]
impl PermissionsExt for Permissions1.1.0[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 Wimpl<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