#[repr(i32)]
#[non_exhaustive]
pub enum MmapAdvise {
MADV_NORMAL,
MADV_RANDOM,
MADV_SEQUENTIAL,
MADV_WILLNEED,
MADV_DONTNEED,
MADV_FREE,
}
mman
only.Expand description
Usage information for a range of memory to allow for performance optimizations by the kernel.
Used by madvise
.
Variants (Non-exhaustive)
This enum is marked as non-exhaustive
MADV_NORMAL
No further special treatment. This is the default.
MADV_RANDOM
Expect random page references.
MADV_SEQUENTIAL
Expect sequential page references.
MADV_WILLNEED
Expect access in the near future.
MADV_DONTNEED
Do not expect access in the near future.
MADV_FREE
Specify that the application no longer needs the pages in the given range.
Trait Implementations
sourceimpl Clone for MmapAdvise
impl Clone for MmapAdvise
sourcefn clone(&self) -> MmapAdvise
fn clone(&self) -> MmapAdvise
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for MmapAdvise
impl Debug for MmapAdvise
sourceimpl Hash for MmapAdvise
impl Hash for MmapAdvise
sourceimpl Ord for MmapAdvise
impl Ord for MmapAdvise
sourceimpl PartialEq<MmapAdvise> for MmapAdvise
impl PartialEq<MmapAdvise> for MmapAdvise
sourceimpl PartialOrd<MmapAdvise> for MmapAdvise
impl PartialOrd<MmapAdvise> for MmapAdvise
sourcefn partial_cmp(&self, other: &MmapAdvise) -> Option<Ordering>
fn partial_cmp(&self, other: &MmapAdvise) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
impl Copy for MmapAdvise
impl Eq for MmapAdvise
impl StructuralEq for MmapAdvise
impl StructuralPartialEq for MmapAdvise
Auto Trait Implementations
impl RefUnwindSafe for MmapAdvise
impl Send for MmapAdvise
impl Sync for MmapAdvise
impl Unpin for MmapAdvise
impl UnwindSafe for MmapAdvise
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more