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use std::time::{Instant, Duration};
use std::default::Default;
use std::fmt;
use std::ops::{Add, Sub};
use rust_decimal::Decimal;
#[derive(Default, Clone, Copy)]
pub struct TimeSpan {
nanos: u128,
}
impl From<Duration> for TimeSpan {
fn from(d:Duration) -> Self {
Self{
nanos: d.as_nanos(),
}
}
}
impl Into<Duration> for TimeSpan{
fn into(self) -> Duration{
Duration::from_nanos(self.nanos as u64)
}
}
impl Add<TimeSpan> for TimeSpan{
type Output = TimeSpan;
fn add(self, t: TimeSpan) -> TimeSpan {
TimeSpan{
nanos: self.nanos + t.nanos
}
}
}
impl Add<Duration> for TimeSpan{
type Output = TimeSpan;
fn add(self, d: Duration) -> TimeSpan {
TimeSpan{
nanos: self.nanos + d.as_nanos()
}
}
}
impl Sub<TimeSpan> for TimeSpan{
type Output = TimeSpan;
fn sub(self, t: TimeSpan) -> TimeSpan {
TimeSpan{
nanos: self.nanos - t.nanos
}
}
}
impl Sub<Duration> for TimeSpan{
type Output = TimeSpan;
fn sub(self, d: Duration) -> TimeSpan {
TimeSpan{
nanos: self.nanos - d.as_nanos()
}
}
}
impl TimeSpan {
const NANOS_PER_MILLI: u128 = 1_000_000;
const NANOS_PER_SEC: u128 = 1_000_000_000;
const NANOS_PER_MINUTE: u128 = Self::NANOS_PER_SEC * 60;
const NANOS_PER_HOUR: u128 = Self::NANOS_PER_MINUTE * 60;
const NANOS_PER_DAY: u128 = Self::NANOS_PER_HOUR * 24;
pub fn total_days(&self) -> Decimal{
Decimal::new(self.nanos as i64, 0) * (Decimal::new(1, 0) / Decimal::new(Self::NANOS_PER_DAY as i64, 0))
}
pub fn total_hours(&self) -> Decimal{
Decimal::new(self.nanos as i64, 0) * (Decimal::new(1, 0) / Decimal::new(Self::NANOS_PER_HOUR as i64, 0))
}
pub fn total_minutes(&self) -> Decimal{
Decimal::new(self.nanos as i64, 0) * (Decimal::new(1, 0) / Decimal::new(Self::NANOS_PER_MINUTE as i64, 0))
}
pub fn total_seconds(&self) -> Decimal{
Decimal::new(self.nanos as i64, 0) * (Decimal::new(1, 0) / Decimal::new(Self::NANOS_PER_SEC as i64, 0))
}
pub fn total_ms(&self) -> Decimal {
Decimal::new(self.nanos as i64, 0) * (Decimal::new(1, 0) / Decimal::new(Self::NANOS_PER_MILLI as i64, 0))
}
pub fn total_nano(&self) -> u128 {
self.nanos
}
pub fn days(&self) -> u32 {
(self.nanos / Self::NANOS_PER_DAY) as u32
}
pub fn hours(&self) -> u32 {
((self.nanos / Self::NANOS_PER_HOUR) % 24) as u32
}
pub fn minutes(&self) -> u32 {
((self.nanos / Self::NANOS_PER_MINUTE) % 60) as u32
}
pub fn seconds(&self) -> u32 {
((self.nanos / Self::NANOS_PER_SEC) % 60) as u32
}
pub fn ms(&self) -> u32 {
((self.nanos / Self::NANOS_PER_MILLI) % 1000) as u32
}
pub fn nanos(&self) -> u128 {
self.nanos
}
}
#[derive(Default, Clone, Copy)]
pub struct Profiler {
start_time: Option<Instant>,
end_time: Option<Instant>,
elapsed_time: TimeSpan,
}
impl fmt::Display for Profiler {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let elapsed = self.elapsed();
return write!(f, "{}ms", elapsed.total_minutes());
}
}
impl Profiler {
pub fn new() -> Self {
Default::default()
}
pub fn start_new() -> Self{
let mut inst = Self::default();
inst.start();
inst
}
pub fn start(&mut self) {
if self.start_time.is_none(){
self.start_time = Some(Instant::now());
}
}
pub fn stop(&mut self) {
if self.end_time.is_none(){
self.end_time = Some(Instant::now());
}
if let (Some(start), Some(end)) = (self.start_time, self.end_time){
self.elapsed_time = (end - start).into();
}else{
self.elapsed_time = TimeSpan::default();
}
}
pub fn clear(&mut self) {
self.start_time = None;
self.end_time = None
}
pub fn since_started(&self) -> TimeSpan{
let current_inst = Instant::now();
if let Some(started) = self.start_time{
(current_inst - started).into()
}else{
Duration::from_secs(0).into()
}
}
pub fn elapsed(&self) -> TimeSpan {
self.elapsed_time
}
}