Enum signal_hook::low_level::siginfo::Cause[−][src]

#[non_exhaustive]
pub enum Cause {
    Unknown,
    Kernel,
    Sent(Sent),
    Chld(Chld),
}
This is supported on crate feature extended-siginfo-raw only.
Expand description

What caused a signal.

This is a best-effort (and possibly incomplete) representation of the C siginfo_t::si_code. It may differ between OSes and may be extended in future versions.

Note that this doesn’t contain all the „fault“ signals (SIGILL, SIGSEGV and similar). There’s no reasonable way to use the exfiltrators with them, since the handler either needs to terminate the process or somehow recover from the situation. Things based on exfiltrators do neither, which would cause an UB and therefore these values just don’t make sense.

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.
Unknown

The cause is unknown.

Some systems don’t fill this in. Some systems have values we don’t understand. Some signals don’t have specific reasons to come to being.

Kernel

Sent by the kernel.

This probably exists only on Linux.

Sent(Sent)

The signal was sent by other process.

Chld(Chld)

A SIGCHLD, caused by a child process changing state.

Trait Implementations

impl Clone for Cause[src]

fn clone(&self) -> Cause[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for Cause[src]

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

Formats the value using the given formatter. Read more

impl PartialEq<Cause> for Cause[src]

fn eq(&self, other: &Cause) -> bool[src]

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

fn ne(&self, other: &Cause) -> bool[src]

This method tests for !=.

impl Copy for Cause[src]

impl Eq for Cause[src]

impl StructuralEq for Cause[src]

impl StructuralPartialEq for Cause[src]

Auto Trait Implementations

impl RefUnwindSafe for Cause

impl Send for Cause

impl Sync for Cause

impl Unpin for Cause

impl UnwindSafe for Cause

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

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

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

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

pub fn from(t: T) -> T[src]

Performs the conversion.

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

pub fn into(self) -> U[src]

Performs the conversion.

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

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

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.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.