pub struct AccessPolicy { /* private fields */ }Expand description
What an access is allowed to do to satisfy a read/write of a Bytes.
Implementations§
Source§impl AccessPolicy
impl AccessPolicy
Sourcepub fn allow_copy() -> AccessPolicy
pub fn allow_copy() -> AccessPolicy
Allow allocating/copying a new buffer to satisfy the access (copy-on-read materialization and copy-on-write).
Sourcepub fn zero_copy() -> AccessPolicy
pub fn zero_copy() -> AccessPolicy
Forbid any copy: the access succeeds only if it can be served from already-resident
memory, otherwise it fails with AccessError::WouldCopy.
Sourcepub fn copy_allowed(&self) -> bool
pub fn copy_allowed(&self) -> bool
Whether copying is allowed to satisfy the access.
Trait Implementations§
Source§impl Clone for AccessPolicy
impl Clone for AccessPolicy
Source§fn clone(&self) -> AccessPolicy
fn clone(&self) -> AccessPolicy
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for AccessPolicy
Source§impl Debug for AccessPolicy
impl Debug for AccessPolicy
Source§impl Default for AccessPolicy
impl Default for AccessPolicy
Source§fn default() -> AccessPolicy
fn default() -> AccessPolicy
Returns the “default value” for a type. Read more
impl Eq for AccessPolicy
Source§impl PartialEq for AccessPolicy
impl PartialEq for AccessPolicy
impl StructuralPartialEq for AccessPolicy
Auto Trait Implementations§
impl Freeze for AccessPolicy
impl RefUnwindSafe for AccessPolicy
impl Send for AccessPolicy
impl Sync for AccessPolicy
impl Unpin for AccessPolicy
impl UnsafeUnpin for AccessPolicy
impl UnwindSafe for AccessPolicy
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
Source§impl<T> CloneExpand for Twhere
T: Clone,
impl<T> CloneExpand for Twhere
T: Clone,
fn __expand_clone_method(&self, _: &Scope) -> T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Converts
Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be
downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Converts
Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further
downcast into Rc<ConcreteType> where ConcreteType implements Trait.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Converts
&Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &Any’s vtable from &Trait’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Converts
&mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &mut Any’s vtable from &mut Trait’s.Source§impl<T> DowncastSend for T
impl<T> DowncastSend for T
Source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more