PostgreSQL Client から自作 DBMS に接続する - goropikariの備忘録
最近、Go の練習がてら書いていた自作 DBMS に PostgreSQL client で接続できるようになったので、そのやり方を残しておきます。(これから紹介するサンプルコードはすべて Python ですが) github.com psql --version psql (PostgreSQL) 13.2 pgcon の資料と PostgreSQL の公式 Document、加えて PostgreSQL server と client 間に流れるパケットを眺めると、自作DBMSは client から接続されたときにどういうパケットを返せばいいのかが見えてきます。 https://www.pgcon.org/2014/schedule/attachments/330_postgres-for-the-wire.pdf https://www.postgresql.org/docs/13/
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
Renato Athaydes
Revenge of Lisp (Part 1⁄2) Background vector created by upklyak - www.freepik.com This may surprise you if you know me, but I’ve been learning Common Lisp for a few weeks now. It all started when I was reading, funnily enough, a blog post about another, much more hyped, language called Julia. The post was titled Julia and the reincarnation of Lisp, and in it the author lamented that despite his lo
A Deep Dive into eBPF: Writing an Efficient DNS Monitoring.
eBPF / XDP is an in-kernel virtual machine, provides a high-level library, instruction set and an execution environment inside the Linux kernel. It’s used in many Linux kernel subsystems, most prominently networking, tracing, debugging and security. Including to modify the processing of packets in the kernel and also allows the programming of network devices such as SmartNICs. Use cases in eBPF im
I find blockchain fascinating because it extends open source software development to open source + state. This seems to be a genuine/exciting innovation in computing paradigms; We don’t just get to share code, we get to share a running computer, and anyone anywhere can use it in an open and permissionless manner. The seeds of this revolution arguably began with Bitcoin, so I became curious to dril
May 16, 2019This post is a long form essay version of a talk about PyTorch internals, that I gave at the PyTorch NYC meetup on May 14, 2019. Hi everyone! Today I want to talk about the internals of PyTorch. This talk is for those of you who have used PyTorch, and thought to yourself, “It would be great if I could contribute to PyTorch,” but were scared by PyTorch’s behemoth of a C++ codebase. I’m
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? はじめに ２年ぐらい前からruby-htslibというものを作っています。 これは、Rubyでゲノム関連のファイルフォーマットを扱うライブラリです。RやPythonのライブラリを活用すればいいのですが、右も左もSAM、VCFもよくわからない状態なので、htslibバインディングを自作しながら勉強しようと考えました。 Rubyは日本語コミュニティが強力で、言語仕様から、コア開発まで、日本語で質問でき、的確な回答が得られるのがいいところです。他の言語では日本語ネイティブのコア開発者が少ないのでなかなかそうはいきません。 Ruby-FFI ま
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What's New in Emacs 28.1?
A from-scratch tour of Bitcoin in Python
PyTorch internals : ezyang's blog
HTSlibのRubyバインディングを作っていて難しかったところ - Qiita