Struct bitflags::__core::sync::Once

pub struct Once {
    // some fields omitted
}

[−] Expand description

A synchronization primitive which can be used to run a one-time global initialization. Useful for one-time initialization for FFI or related functionality. This type can only be constructed with the ONCE_INIT value.

Examples

use std::sync::{Once, ONCE_INIT};

static START: Once = ONCE_INIT;

START.call_once(|| {
    // run initialization here
});