1.0.0[−][src]Struct std::fs::Permissions
Representation of the various permissions on a file.
This module only currently provides one bit of information, readonly,
which is exposed on all currently supported platforms. Unix-specific
functionality, such as mode bits, is available through the
PermissionsExt trait.
Methods
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 fs::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 PermissionsExt for Permissions1.1.0[src]
fn mode(&self) -> u32[src]
fn set_mode(&mut self, mode: u32)[src]
fn from_mode(mode: u32) -> Permissions[src]
impl Clone for Permissions[src]
fn clone(&self) -> Permissions[src]
fn clone_from(&mut self, source: &Self)[src]
Performs copy-assignment from source. Read more
impl Debug for Permissions[src]
impl PartialEq<Permissions> for Permissions[src]
fn eq(&self, other: &Permissions) -> bool[src]
fn ne(&self, other: &Permissions) -> bool[src]
impl Eq for Permissions[src]
Auto Trait Implementations
impl Send for Permissions
impl Sync for Permissions
Blanket Implementations
impl<T, U> TryFrom for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T> From for T[src]
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<T, U> Into for T where
U: From<T>, [src]
U: From<T>,
impl<T> Borrow for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized, [src]
T: ?Sized,
ⓘImportant traits for &'_ mut Ifn borrow_mut(&mut self) -> &mut T[src]
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,