Struct SigAction 

pub struct SigAction { /* private fields */ }

Action to take on receipt of a signal.

SigAction wraps libc::sigaction, which defines the full signal disposition: the handler, flags controlling delivery behavior, and the set of signals to block while the handler runs. Construct one with SigAction::new and install it with sigaction.

Examples

Install a handler for SIGINT:

extern "C" fn handle_sigint(signal: libc::c_int) {
    // handle signal
}

fn main() {
    let handler = SigHandler::Handler(handle_sigint);
    let action = SigAction::new(handler, SaFlags::empty(), SigSet::empty());
    unsafe { signal::sigaction(Signal::SIGINT, &action) }.unwrap();
}

Implementations

impl SigAction

pub fn new(handler: SigHandler, flags: SaFlags, mask: SigSet) -> SigAction

Creates a new action.

The SA_SIGINFO bit in the flags argument is ignored (it will be set only if handler is the SigAction variant). mask specifies other signals to block during execution of the signal-catching function.

pub fn flags(&self) -> SaFlags

Returns the flags set on the action.

pub fn mask(&self) -> SigSet

Returns the set of signals that are blocked during execution of the action’s signal-catching function.

pub fn handler(&self) -> SigHandler

Returns the action’s handler.

Trait Implementations

impl Clone for SigAction

fn clone(&self) -> SigAction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SigAction

impl Debug for SigAction

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

Formats the value using the given formatter.

impl Eq for SigAction

impl From<SigAction> for sigaction

Available on crate feature signal only.

fn from(value: SigAction) -> sigaction

Converts to this type from the input type.

impl Hash for SigAction

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SigAction

fn eq(&self, other: &SigAction) -> 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 StructuralPartialEq for SigAction