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 Clone for Permissions[src]
fn clone(&self) -> Permissions[src]
fn clone_from(&mut self, source: &Self)[src]
impl Debug for Permissions[src]
impl Eq 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]
fn mode(&self) -> u32[src]
fn set_mode(&mut self, mode: u32)[src]
fn from_mode(mode: u32) -> 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> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T[src]
fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> 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, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,