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hl174's Projects

advbox icon advbox

Python toolbox to create adversarial examples that fool neural networks in Paddle, TensorFlow, Caffe2, … AI安全工具箱

alibaba-mom icon alibaba-mom

2015 ali中间件比赛项目，1. 通信模块： 涉及到了消息架构设计，每一个主题分配1-2个队列，这个是可以横向增加，考虑到了一个主题有多个消费者订阅，而且还有过滤条件，为了负载均衡，对应的队列投递消息是根据随机数对队列数取膜完成的。以上是内存队列。 2. 持久化系统：因为考虑到机器坏掉，broker不可用等等原因导致的消息丢失，就需要每次收到的消息必须及时落盘，这个就是比赛优化的重中之重。为此设计了一个小型的文件系统，借鉴阿里的rocketmq. 用一个大的日志文件，一般1G大小每个，和内存队列的结构映射到实体队列。整个日志文件是顺序文件，每条消息固定大小，里面有对应的队列号，消息号，还有长度等等。这个方便恢复消息到实体队列用的。 同步刷盘，异步刷盘，持久化必须可靠，所以一般是同步刷盘到日志文件，日志文件定时异步刷盘到实体队列，实体队列里面是索引，消息的本体在日志文件里面。为了加快大面积的写入速度，用了内存映射：内存映射文件首先将外存上的文件映射到内存中的一块连续区域，被当成一个字节数组进行处理，读写操作直接对内存进行操作，而后再将内存区域重新映射到外存文件，这就节省了中间频繁的对外存进行读写的时间，大大降低了读写时间

blade icon blade

:rocket: A Simple, Elegant Java Web Framework! website →

ctci icon ctci

Cracking the Coding Interview, 5th Edition

druid-1 icon druid-1

为监控而生的数据库连接池！

dubbo icon dubbo

Dubbo is a distributed service framework empowers applications with service import/export capability with high performance RPC.

expr icon expr

Expression evaluation engine for Go: fast, non-Turing complete, dynamic typing, static typing

funiture icon funiture

https://github.com/kanwangzjm/funiture, spring项目，权限管理、系统监控、服务降级、定时任务动态调整、qps限制、sql监控(邮件)、验证码服务、短链接服务、动态配置等实用功能，以及redis、rabbitmq、zookeeper等技术实践

gaodemap icon gaodemap

模仿官方高德地图开发文档做的小测试

go-collection icon go-collection

:tulip: awesome awesome go, study golang from basic to proficient

go-parser icon go-parser

A small wrapper around the parser and ast packages

gopher icon gopher

Go 学习路线图，包括基础专栏，进阶专栏，源码阅读，实战开发，面试刷题，必读书单等一系列资源

grpc icon grpc

The C based gRPC (C++, Node.js, Python, Ruby, Objective-C, PHP, C#)

leetcode icon leetcode

LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)

leveldb icon leveldb

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

libuv icon libuv

Cross-platform asynchronous I/O

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