ciorent/index.js

A lightweight, low-overhead concurrency library

export let nextTick=Promise.resolve();export let sleep=globalThis.Bun?.sleep??globalThis.process?.getBuiltinModule?.(`timers/promises`).setTimeout??(e=>new Promise(t=>{setTimeout(t,e)}));let sharedBuf=new Int32Array(new SharedArrayBuffer(4));export let sleepSync=globalThis.Bun?.sleepSync??(e=>{Atomics.wait(sharedBuf,0,0,e)});export let sequential=async(e,t,...n)=>{for(let r=0;r<e;r++)await t(...n,r)};export let spawn=(e,t,...n)=>{let r=new Array(e);for(let i=0;i<e;i++)r[i]=t(...n,i);return r};export let throttle=(e,t)=>{let n=[null];let r=n;let i=e=>{n=n[0]=[null,e]};let a=t;let o=false;let s=()=>{a=t;if(r===n){o=false;return}do{a--;(r=r[0])[1]()}while(a>0&&r!==n);setTimeout(s,e)};return async()=>{if(a===0)return new Promise(i);if(!o){o=true;setTimeout(s,e)}a--}};