wt_blk 0.2.0

Parser and unpacker for the BLK file format
Documentation 
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use std::{sync::Mutex, time::Duration};

/// ! Call this example to print results
/// ! #[cfg(feature = "performance_stamp")]
/// !	PerformanceStamp::print_results()

pub static PERF: Mutex<Vec<PerformanceStamp>> = Mutex::new(vec![]);

pub struct PerformanceStamp {
	pub description: &'static str,
	pub duration:    Duration,
}

impl PerformanceStamp {
	pub fn print_results() {
		let perf = PERF.lock().unwrap();

		for result in perf.iter() {
			eprintln!("{} ran for {:?}", result.description, result.duration);
		}
	}
}

/// Creates a performance-timestamp measuring time from the last time this instant was created
#[macro_export]
macro_rules! stamp {
	($desc:expr, $time_var:ident) => {
		#[cfg(feature = "performance_stamp")]
		{
			crate::perf_instrumentation::PERF.lock().unwrap().push(
				crate::perf_instrumentation::PerformanceStamp {
					description: $desc,
					duration:    $time_var.elapsed(),
				},
			);
			$time_var = Instant::now();
		}
	};
}