npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

chacent

v1.2.0

Published

Node.js共享内存本机模块

Readme

shm

nodejs 共享内存本机插件

不再需要安装boost头文件,已经将必要头文件提取(只测试了windows与centos,如果缺少头文件,请安装boost头文件)

使用时请注意:

1、内存映射不能太大,也就是map的第三个参数。因为windows系统对映射大小有限制,超出则会物理内存不足。按需取用是基本原则 2、map返回的buffer虽是普通buffer,但不要依赖其引用,因为取消映射依赖于buffer对象的释放,引用会占用物理内存 3、以下仅列出样例,函数参数参考boost(不完全相同,但是有参考意义,有时间再完整的整理下)

安装 npm install chacent

const shm = require('chacent');

console.log(shm);//可用的常量值定义

let shared = shm('test',shm.open_create,shm.write);

shared.size()

shared.truncate(1024);

shared.remove();

//buffer有大小限制,不要对buffer引用

let buffer = shared.map(shm.write,0,20);

console.log(buffer);