benri

方便的宏封装标准库。

此库提供了围绕 std 功能的方便宏。

功能标志

示例1 - 翻转布尔值

let mut a = false;
flip!(a);
assert!(a == true);
flip!(a);
assert!(a == false);

示例2 - 获取当前的 Instant

let now = now!();

std::thread::sleep(std::time::Duration::from_secs(1));

assert!(now.elapsed().as_secs() >= 1);

示例3 - 获取已过 Instant 时间

let now = now!();

std::thread::sleep(std::time::Duration::from_secs(1));
assert!(secs!(now)     >= 1);
assert!(secs_f64!(now) >= 1.0);
assert!(millis!(now)   >= 1000);
assert!(micros!(now)   >= 10000);
assert!(nanos!(now)    >= 100000);

示例4 - 睡眠线程

let now = now!();

// This sleeps the current thread for 1 second.
sleep!(1000);

assert!(secs!(now) >= 1);

示例5 - 退出 所有 线程

std::thread::spawn(|| {
    mass_panic!();
}).join().unwrap();

// The program will has already exited.
// The below statement will never be reached.
unsafe { /* do bad things */ }

示例6 - 发送/接收通道消息或 mass_panic!()

let (tx, rx) = std::sync::mpsc::channel::<u8>();

std::thread::spawn(move || {
    send!(tx, 255);
}).join().unwrap();

assert!(recv!(rx) == 255);