[][src]Enum nix::sys::mman::MmapAdvise

#[repr(i32)]pub enum MmapAdvise {
    MADV_NORMAL,
    MADV_RANDOM,
    MADV_SEQUENTIAL,
    MADV_WILLNEED,
    MADV_DONTNEED,
    MADV_REMOVE,
    MADV_DONTFORK,
    MADV_DOFORK,
    MADV_HWPOISON,
    MADV_MERGEABLE,
    MADV_UNMERGEABLE,
    MADV_SOFT_OFFLINE,
    MADV_HUGEPAGE,
    MADV_NOHUGEPAGE,
    MADV_DONTDUMP,
    MADV_DODUMP,
    MADV_FREE,
}

Usage information for a range of memory to allow for performance optimizations by the kernel.

Used by madvise.

Variants

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_REMOVE

Free up a given range of pages and its associated backing store.

MADV_DONTFORK

Do not make pages in this range available to the child after a fork(2).

MADV_DOFORK

Undo the effect of MADV_DONTFORK.

MADV_HWPOISON

Poison the given pages.

Subsequent references to those pages are treated like hardware memory corruption.

MADV_MERGEABLE

Enable Kernel Samepage Merging (KSM) for the given pages.

MADV_UNMERGEABLE

Undo the effect of MADV_MERGEABLE

MADV_SOFT_OFFLINE

Preserve the memory of each page but offline the original page.

MADV_HUGEPAGE

Enable Transparent Huge Pages (THP) for pages in the given range.

MADV_NOHUGEPAGE

Undo the effect of MADV_HUGEPAGE.

MADV_DONTDUMP

Exclude the given range from a core dump.

MADV_DODUMP

Undo the effect of an earlier MADV_DONTDUMP.

MADV_FREE

Specify that the application no longer needs the pages in the given range.

Trait Implementations

impl Clone for MmapAdvise[src]

impl Copy for MmapAdvise[src]

impl Debug for MmapAdvise[src]

impl Eq for MmapAdvise[src]

impl Hash for MmapAdvise[src]

impl Ord for MmapAdvise[src]

impl PartialEq<MmapAdvise> for MmapAdvise[src]

impl PartialOrd<MmapAdvise> for MmapAdvise[src]

impl StructuralEq for MmapAdvise[src]

impl StructuralPartialEq for MmapAdvise[src]

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

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.