Jinhua Blog

TL;DR coco is a simple stackless, single-threaded, and header-only C++20 coroutine library that leverages native C++20 coroutines for async/await programming with Go-like channels and waitgroups. https://github.com/kingluo/coco Background Don’t communicate

TL;DR coco is a simple stackless, single-threaded, and header-only C++11 coroutine library. https://github.com/kingluo/coco Background Don’t communicate through shared memory, share memory through communication.

In Envoy, both lua-resty-ffi (envoy porting) and the built-in golang filter allow you to use golang to develop asynchronous business logic through goroutine, but which one performs better?

TL;DR In openresty, using ngx.location.capture(), we can achieve high-performance asynchronous processing of upstream responses.

TL;DR I’ve created a new HTTP/3 testing framework based on bash and curl: https://github.com/kingluo/burl Chinese blog version: https://zhuanlan.zhihu.com/p/675741855 Background A few months ago, when I ported the QUIC patches from the nginx mainline to A…

Background Both nginx and envoy are high-performance proxy server software.

TL;DR How can I log the Lua execution time of each request (excluding time spent on asynchronous IO) in ngx.ctx in a non-intrusive, zero-cost way?

Background HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web, complementing the widely-deployed HTTP/1.1 and HTTP/2.

Background Kerberos is a computer network security protocol that authenticates service requests between two or more trusted hosts across an untrusted network, like the internet.

As known, nginx modules are static linking.

Asynchronous programming or async for short, is a concurrent programming model supported by an increasing number of programming languages.

lua-resty-ffi provides an efficient and generic API to do hybrid programming in openresty with mainstream languages (Go, Python, Java, Rust, Nodejs, etc.). https://github.com/kingluo/lua-resty-ffi I already implement code hot-reload for Python and Nodejs…

As known, Node.js is a popular javascript runtime based on V8 and libuv, with many third-party packages managed by npm.

Back in 2019, when I work as individual postgresql/nginx consultant.

Rust is a complex programming language, with a lot of concepts.

flatBuffers is an efficient cross platform serialization library for C++, C#, C, Go, Java, Kotlin, JavaScript, Lobster, Lua, TypeScript, PHP, Python, Rust and Swift.

I work on a remote terminal most of the time.

Vim, the god of editor, is popular in developers and hackers.

What’s blocking?

Use systemtap to analyze the memory leak of lua code The memory used by lua code is managed by the GC, not calling malloc/free/mmap directly.

Without questioin, gdb is a brilliant weapon to debug our program.

Why string interning?