Struct Exit 

pub struct Exit { /* private fields */ }

Graceful shutdown coordinator for ensuring data consistency during program exit.

On first signal, a background thread acquires the write lock (waiting only for the current critical section to finish), runs cleanup callbacks, and exits. On second signal, force-exits immediately via _exit(1).

Implementations

impl Exit

pub fn new() -> Exit

pub fn register_cleanup<F>(&self, callback: F)

where F: Fn() + Send + Sync + 'static,

Registers a callback to be executed during shutdown. Callbacks are executed in registration order before the program exits.

pub fn set_ctrlc_handler(&self)

Registers signal handlers and spawns a background shutdown thread.

Panics

Panics if pipe creation or sigaction fails.

pub fn lock(&self) -> ExitGuard

Acquires a read lock to protect a critical section from shutdown. The shutdown thread will wait for all read locks to be released before exiting. Returns an owned guard that is Send + ’static (can be moved to background threads).

Trait Implementations

impl Clone for Exit

fn clone(&self) -> Exit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Exit

fn default() -> Exit

Returns the “default value” for a type.