#[non_exhaustive]#[repr(u32)]pub enum Advice {
Show 24 variants
Normal = 0,
Sequential = 2,
Random = 1,
WillNeed = 3,
LinuxDontNeed = 4,
LinuxFree = 8,
LinuxRemove = 9,
LinuxDontFork = 10,
LinuxDoFork = 11,
LinuxHwPoison = 100,
LinuxSoftOffline = 101,
LinuxMergeable = 12,
LinuxUnmergeable = 13,
LinuxHugepage = 14,
LinuxNoHugepage = 15,
LinuxDontDump = 16,
LinuxDoDump = 17,
LinuxWipeOnFork = 18,
LinuxKeepOnFork = 19,
LinuxCold = 20,
LinuxPageOut = 21,
LinuxPopulateRead = 22,
LinuxPopulateWrite = 23,
LinuxDontneedLocked = 24,
}
Expand description
POSIX_MADV_*
constants for use with madvise
.
Variants (Non-exhaustive)§
This enum is marked as 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 = 0
POSIX_MADV_NORMAL
Sequential = 2
POSIX_MADV_SEQUENTIAL
Random = 1
POSIX_MADV_RANDOM
WillNeed = 3
POSIX_MADV_WILLNEED
LinuxDontNeed = 4
MADV_DONTNEED
LinuxFree = 8
MADV_FREE
(since Linux 4.5)
LinuxRemove = 9
MADV_REMOVE
LinuxDontFork = 10
MADV_DONTFORK
LinuxDoFork = 11
MADV_DOFORK
LinuxHwPoison = 100
MADV_HWPOISON
LinuxSoftOffline = 101
MADV_SOFT_OFFLINE
LinuxMergeable = 12
MADV_MERGEABLE
LinuxUnmergeable = 13
MADV_UNMERGEABLE
LinuxHugepage = 14
MADV_HUGEPAGE
LinuxNoHugepage = 15
MADV_NOHUGEPAGE
LinuxDontDump = 16
MADV_DONTDUMP
(since Linux 3.4)
LinuxDoDump = 17
MADV_DODUMP
(since Linux 3.4)
LinuxWipeOnFork = 18
MADV_WIPEONFORK
(since Linux 4.14)
LinuxKeepOnFork = 19
MADV_KEEPONFORK
(since Linux 4.14)
LinuxCold = 20
MADV_COLD
(since Linux 5.4)
LinuxPageOut = 21
MADV_PAGEOUT
(since Linux 5.4)
LinuxPopulateRead = 22
MADV_POPULATE_READ
(since Linux 5.14)
LinuxPopulateWrite = 23
MADV_POPULATE_WRITE
(since Linux 5.14)
LinuxDontneedLocked = 24
MADV_DONTNEED_LOCKED
(since Linux 5.18)
Implementations§
Trait Implementations§
impl Copy for Advice
impl Eq for Advice
impl StructuralPartialEq for Advice
Auto Trait Implementations§
impl Freeze for Advice
impl RefUnwindSafe for Advice
impl Send for Advice
impl Sync for Advice
impl Unpin for Advice
impl UnwindSafe for Advice
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
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)