Enum rustix::mm::Advice

#[repr(i32)]
#[non_exhaustive]
pub enum Advice {
    Normal,
    Sequential,
    Random,
    WillNeed,
    DontNeed,
    LinuxDontNeed,
    LinuxFree,
    LinuxRemove,
    LinuxDontFork,
    LinuxDoFork,
    LinuxHwPoison,
    LinuxSoftOffline,
    LinuxMergeable,
    LinuxUnmergeable,
    LinuxHugepage,
    LinuxNoHugepage,
    LinuxDontDump,
    LinuxDoDump,
    LinuxWipeOnFork,
    LinuxKeepOnFork,
    LinuxCold,
    LinuxPageOut,
    LinuxPopulateRead,
    LinuxPopulateWrite,
}

POSIX_MADV_* constants for use with madvise.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Normal

POSIX_MADV_NORMAL

Sequential

POSIX_MADV_SEQUENTIAL

Random

POSIX_MADV_RANDOM

WillNeed

POSIX_MADV_WILLNEED

DontNeed

POSIX_MADV_DONTNEED

LinuxDontNeed

MADV_DONTNEED

LinuxFree

MADV_FREE

LinuxRemove

MADV_REMOVE

LinuxDontFork

MADV_DONTFORK

LinuxDoFork

MADV_DOFORK

LinuxHwPoison

MADV_HWPOISON

LinuxSoftOffline

MADV_SOFT_OFFLINE

LinuxMergeable

MADV_MERGEABLE

LinuxUnmergeable

MADV_UNMERGEABLE

LinuxHugepage

MADV_HUGEPAGE (since Linux 2.6.38)

LinuxNoHugepage

MADV_NOHUGEPAGE (since Linux 2.6.38)

LinuxDontDump

MADV_DONTDUMP (since Linux 3.4)

LinuxDoDump

MADV_DODUMP (since Linux 3.4)

LinuxWipeOnFork

MADV_WIPEONFORK (since Linux 4.14)

LinuxKeepOnFork

MADV_KEEPONFORK (since Linux 4.14)

LinuxCold

MADV_COLD (since Linux 5.4)

LinuxPageOut

MADV_PAGEOUT (since Linux 5.4)

LinuxPopulateRead

MADV_POPULATE_READ (since Linux 5.14)

LinuxPopulateWrite

MADV_POPULATE_WRITE (since Linux 5.14)

Trait Implementations

impl Clone for Advice

fn clone(&self) -> Advice

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Advice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<Advice> for Advice

fn eq(&self, other: &Advice) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Advice

impl Eq for Advice

impl StructuralEq for Advice

impl StructuralPartialEq for Advice