Struct EventSignal 

pub struct EventSignal<'a> { /* private fields */ }

Available on macOS only.

Send a signal to a process event.

Signals may be sent on behalf of another process or directly. Notably launchd often sends signals on behalf of another process for service start/ stop operations. If this is the case an instigator will be provided. The relationship between each process is illustrated below:

Delegated Signal:

Instigator Process -> IPC to Sender Process (launchd) -> Target Process

Direct Signal:

Sender Process -> Target Process

Clients may wish to block delegated signals from launchd for non-authorized instigators, while still allowing direct signals initiated by launchd for shutdown/reboot/restart.

Implementations

impl<'a> EventSignal<'a>

pub fn sig(&self) -> i32

The signal number to be delivered.

pub fn target(&self) -> Process<'a>

The process that will receive the signal.

pub fn instigator(&self) -> Option<Process<'a>>

Available on crate feature macos_15_4_0 only.

Process information for the instigator.

Only available for delegated signals.

Note: Only available only if message version >= 9.

Trait Implementations

impl<'a> Debug for EventSignal<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for EventSignal<'a>

impl<'a> Hash for EventSignal<'a>

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<'a> PartialEq for EventSignal<'a>

fn eq(&self, other: &Self) -> 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 Send for EventSignal<'_>

impl Sync for EventSignal<'_>