Struct starnix_uapi::signals::SigSet

#[repr(transparent)]
pub struct SigSet(pub c_ulong);

POSIX defines sigset_t as either a numeric or structure type (so the number of signals can exceed the bits in a machine word). The programmer is supposed to modify this bitfield using sigaddset(), etc. rather than setting bits directly so client code can be agnostic to the definition.

• On x64, sigset_t is a typedef for “unsigned long”.
• On ARM64, sigset_t is a structure containing one “unsigned long” member.

To keep the Starnix code agnostic to the definition, this SigSet type provides a wrapper with a uniform interface for the things we need.

The layout of this object is designed to be identical to the layout of the current architecture’s sigset_t type so UserRef can be used for system calls.

Tuple Fields

0: c_ulong

Implementations

impl SigSet

pub fn has_signal(&self, signal: Signal) -> bool

Returns whether this signal set contains the given signal.

Trait Implementations

impl BitAnd for SigSet

type Output = SigSet

The resulting type after applying the & operator.

fn bitand(self, rhs: Self) -> Self::Output

Performs the & operation.

impl BitOr for SigSet

type Output = SigSet

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.

impl Clone for SigSet

fn clone(&self) -> SigSet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SigSet

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

Formats the value using the given formatter.

impl Default for SigSet

fn default() -> SigSet

Returns the “default value” for a type.

impl From<SigSet> for sigset_t

fn from(val: SigSet) -> Self

Converts to this type from the input type.

impl From<Signal> for SigSet

fn from(value: Signal) -> Self

Constructs a sigset consisting of one signal value.

impl From<u64> for SigSet

fn from(value: sigset_t) -> Self

Converts to this type from the input type.

impl FromBytes for SigSet

where c_ulong: FromBytes,

fn ref_from(bytes: &[u8]) -> Option<&Self>

where Self: Sized + NoCell,

Interprets the given bytes as a &Self without copying.

fn ref_from_prefix(bytes: &[u8]) -> Option<&Self>

where Self: Sized + NoCell,

Interprets the prefix of the given bytes as a &Self without copying.

fn ref_from_suffix(bytes: &[u8]) -> Option<&Self>

where Self: Sized + NoCell,

Interprets the suffix of the given bytes as a &Self without copying.

fn mut_from(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + IntoBytes + NoCell,

Interprets the given bytes as a &mut Self without copying.

fn mut_from_prefix(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + IntoBytes + NoCell,

Interprets the prefix of the given bytes as a &mut Self without copying.

fn mut_from_suffix(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + IntoBytes + NoCell,

Interprets the suffix of the given bytes as a &mut Self without copying.

fn slice_from(bytes: &[u8]) -> Option<&[Self]>

where Self: Sized + NoCell,

Interprets the given bytes as a &[Self] without copying.

fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>

where Self: Sized + NoCell,

Interprets the prefix of the given bytes as a &[Self] with length equal to count without copying.

fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>

where Self: Sized + NoCell,

Interprets the suffix of the given bytes as a &[Self] with length equal to count without copying.

fn mut_slice_from(bytes: &mut [u8]) -> Option<&mut [Self]>

where Self: Sized + IntoBytes + NoCell,

Interprets the given bytes as a &mut [Self] without copying.

fn mut_slice_from_prefix( bytes: &mut [u8], count: usize ) -> Option<(&mut [Self], &mut [u8])>

where Self: Sized + IntoBytes + NoCell,

Interprets the prefix of the given bytes as a &mut [Self] with length equal to count without copying.

fn mut_slice_from_suffix( bytes: &mut [u8], count: usize ) -> Option<(&mut [u8], &mut [Self])>

where Self: Sized + IntoBytes + NoCell,

Interprets the suffix of the given bytes as a &mut [Self] with length equal to count without copying.

fn read_from(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from bytes.

fn read_from_prefix(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the prefix of bytes.

fn read_from_suffix(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the suffix of bytes.

impl FromZeros for SigSet

where c_ulong: FromZeros,

fn zero(&mut self)

Overwrites self with zeros.

fn new_zeroed() -> Self

where Self: Sized,

Creates an instance of Self from zeroed bytes.

impl IntoBytes for SigSet

where c_ulong: IntoBytes,

fn as_bytes(&self) -> &[u8]

where Self: NoCell,

Gets the bytes of this value.

fn as_bytes_mut(&mut self) -> &mut [u8]

where Self: FromBytes + NoCell,

Gets the bytes of this value mutably.

fn write_to(&self, bytes: &mut [u8]) -> Option<()>

where Self: NoCell,

Writes a copy of self to bytes.

fn write_to_prefix(&self, bytes: &mut [u8]) -> Option<()>

where Self: NoCell,

Writes a copy of self to the prefix of bytes.

fn write_to_suffix(&self, bytes: &mut [u8]) -> Option<()>

where Self: NoCell,

Writes a copy of self to the suffix of bytes.

impl Not for SigSet

type Output = SigSet

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl PartialEq for SigSet

fn eq(&self, other: &SigSet) -> 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 SigSet

impl Eq for SigSet

impl StructuralPartialEq for SigSet