Enum FcntlCmd

#[repr(u32)]
pub enum FcntlCmd {
    DUPFD = 0,
    GETFD = 1,
    SETFD = 2,
    GETFL = 3,
    SETFL = 4,
    GETLK = 5,
    SETLK = 6,
    SETLKW = 7,
    DUPFDCLOEXEC = 1_030,
}

文件描述符控制命令

MUSL: https://github.com/bminor/musl/blob/c47ad25ea3b484e10326f933e927c0bc8cded3da/arch/generic/bits/fcntl.h#L22 TODO: 根据不同的平台实现不同的命令

Variants

DUPFD = 0

dup

GETFD = 1

get close_on_exec

SETFD = 2

set/clear close_on_exec

GETFL = 3

get file->f_flags

SETFL = 4

set file->f_flags

GETLK = 5

Get record locking info.

SETLK = 6

Set record locking info (non-blocking).

SETLKW = 7

Set record locking info (blocking).

DUPFDCLOEXEC = 1_030

like F_DUPFD, but additionally set the close-on-exec flag

Trait Implementations

impl Clone for FcntlCmd

fn clone(&self) -> FcntlCmd

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FcntlCmd

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

Formats the value using the given formatter.

impl PartialEq for FcntlCmd

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl TryFrom<u32> for FcntlCmd

type Error = TryFromPrimitiveError<FcntlCmd>

The type returned in the event of a conversion error.

fn try_from(number: u32) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for FcntlCmd

const NAME: &'static str = "FcntlCmd"

type Primitive = u32

type Error = TryFromPrimitiveError<FcntlCmd>

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl StructuralPartialEq for FcntlCmd