Crate calculagraph

Source
Expand description

A handy library for measuring the execution time of function.

§Use

The use of the crate is through the 4 attribute macros: #[timer_println], #[timer_log_trace], #[timer_log_info], #[timer_log_debug].

Just like the name they have, timer_println means that it will be using the macro println! to print the results, while timer_log_trace, timer_log_info and timer_log_debug respectively using macros log::trace!, log::info! and log::debug! to output.

Of course, when using the last 3 macros, you should link the log facade and its implementation.

§Examples

[dependencies]
calculagraph = "0.1"
use std::{thread, time};
use calculagraph::timer_println;

#[timer_println(ms)]
fn main() {
    thread::sleep(time::Duration::from_millis(10));
    println!("job done");
}

The above example will print fn:main cost 10ms at the end, You can also use the second argument to define the format string you need.

§Note

This macro added two variables that would never conflict in ordinary business, they are now_x7bf707c839bc2554fa3f1913a8dc699b68236726c5da18b31f660948ca7f542a267de9b and result_x7bf707c839bc2554fa3f1913a8dc699b68236726c5da18b31f660948ca7f542a267de9b, just don’t use them intentionally.

Attribute Macros§

  • log::debug! the execution time after the function is called and executed,
  • log::info! the execution time after the function is called and executed,
  • log::trace! the execution time after the function is called and executed,
  • std::println! the execution time after the function is called and executed.