smallnest/mutal lazy static.md

Created September 27, 2019 02:38

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mutal lazy static.md

#[macro_use]
extern crate lazy_static;

use std::sync::Mutex;

lazy_static! {
    static ref ARRAY: Mutex<Vec<u8>> = Mutex::new(vec![]);
}

fn do_a_call() {
    ARRAY.lock().unwrap().push(1);
}

fn main() {
    do_a_call();
    do_a_call();
    do_a_call();

    println!("called {}", ARRAY.lock().unwrap().len());
}

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