Protothreads - Lightweight, Stackless Threads in C
Protothreads are extremely lightweight stackless threads designed for severely memory constrained systems, such as small embedded systems or wireless sensor network nodes. Protothreads provide linear code execution for event-driven systems implemented in C. Protothreads can be used with or without an underlying operating system to provide blocking event-handlers. Protothreads provide sequential fl
パスワードä¿å˜ã®ãƒ™ã‚¹ãƒˆãƒ—ラクティス㨠bcrypt ã®ãƒ¡ãƒ¢æ›¸ã | tech - 氾濫原
考ãˆã¦ã¿ã‚‹ã¨ã»ã¨ã‚“ã©ãƒ‘スワードをä¿å˜ã™ã‚‹ã‚³ãƒ¼ãƒ‰ã‚’書ã„ãŸã“ã¨ãŒãªã„。ç¾çŠ¶ã®ãƒ™ã‚¹ãƒˆãƒ—ラクティスを知らãªã‹ã£ãŸã®ã§ãƒ¡ãƒ¢æ›¸ã。 ç¾çŠ¶ã§ã¯ bcrypt 使ã†ã®ãŒã„ã„ã¿ãŸã„。b 㯠Blowfish ã® b。 Modular Crypt Format ã¨ã„ã†ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã¨ã‚³ãƒ³ãƒ‘ãƒã®å‡ºåŠ›ã‚’ã™ã‚‹ã€‚crypt (3) ã¯ã‚‚ã¨ã‚‚㨠DES ã®çŸã„フォーマットã ãŒã€å¼±ã™ãŽãŸãŸã‚ md5 æ‹¡å¼µãªã‚ŠSHA512 æ‹¡å¼µãªã©ãŒå˜åœ¨ã—ã¦ã„る。(htpasswd ã§ã‚‚使ã‚ã‚Œã¦ã„ã‚‹ã®ã§è¦‹ãŸã“ã¨ã‚る人ã¯å¤šã„ã ã‚ã†) ã“れ㮠Blowflish を使ã£ãŸã‚‚ã®ãŒ bcrypt ã§ã€prefix ã« $2$, $2a$, $2x$, $2y$ $2b$ ãŒã¤ã„ã¦ã„る。prefix ã®é•ã„ã¯ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®é•ã„ã§ã‚ã‚Šã€ç¾åœ¨ã¯ 2b を使ã†ã®ãŒè‰¯ã„。ストレッãƒãƒ³ã‚°å›žæ•°ã‚‚出力ã«å«ã¾ã‚Œã‚‹ã®ã§ã€ã‚ã‚‹ã¨ã急ã«ã‚¹ãƒˆãƒ¬ãƒƒãƒãƒ³ã‚°å›žæ•°ã‚’増やã—ã¦ã‚‚特ã«å•é¡Œ
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DSAS開発者ã®éƒ¨å±‹:Google Assistant Library プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’楽ã—ã‚€
Introduction to the Google Assistant Library google.assistant.library package Introduction to the Google Assistant Service Package google.assistant.devices.v1alpha2 Google Home デãƒã‚¤ã‚¹ã‚„スマートフォンアプリを通ã˜ã¦ Google アシスタントã®å˜åœ¨æ„Ÿã¯ã©ã‚“ã©ã‚“大ãããªã£ã¦ã„ã¾ã™ã€‚ãã®ä¸€æ–¹ã§ç¾æ™‚点ã§ã¯ Google Assistant SDK プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ãŸã‚ã®å®Ÿè·µçš„ãªæƒ…å ±ã‚’å›½å†…å¤–ã‚’é€šã˜ã¦ã‚ã¾ã‚Šè¦‹ã‹ã‘ãªã„ã“ã¨ãŒæ®‹å¿µã«æ€ã‚ã‚Œã¾ã—ãŸã€‚ãƒãƒƒãƒˆã®å¥¥æ·±ãã«æ¯ã¥ã„ã¦ã„ã‚‹ Google アシスタント陣営ã®ä¸€é€£ã®æ©Ÿèƒ½ã‚’本 SDK ã”ã—ã«æŸ”軟ã«å‘¼ã³å‡ºã™ã“ã¨ãŒã§ãã‚Œã°ã“ã®å¼·åŠ›ã§é…力的ãªã‚µãƒ¼ãƒ“スをã•ã‚‰ã«æ´»ç”¨ã§ãã‚‹ã®ã§ã¯ãªã„ã§ã—ょã†ã‹ã€‚
Overview - Spresense specifications - Sony Developer World
Important: Spresense Website Migration Announcement. Click for more details The Spresense project website will be migrated to a new domain under Sony Semiconductor Solutions on January 16, 2026. The new website URL will be announced at a later date. Please stay tuned for further updates. Spresense 6-core microcontroller board with ultra-low power consumption High-performance microcontroller board
Reduxã®è¨è¨ˆã§æ°—ã‚’ã¤ã‘ã‚‹ã¨ã“ã‚ - ãªã£ãæ—¥å ±
※ Presentational and Container Components - ãªã£ãæ—¥å ± ã«è£œè¶³ã‚’書ãã¾ã—ãŸã€‚ æ¦‚è¦ http://rackt.github.io/redux/docs/basics/UsageWithReact.html medium.com らã¸ã‚“ã«æ›¸ã„ã¦ã‚る「Smart Componentsã€ã€ŒDumb Componentsã€ã‚’ç†è§£ã—ãŸã‚ˆã¨ã„ã†ãŠè©±ã§ã™ã€‚ ãƒã‚¤ãƒ³ãƒˆ 以下ã€å€‹äººçš„ãªè§£é‡ˆã§ã™ï¼ˆãƒ„ッコミã©ã“ã‚ã‚ã‚Œã°ã©ã†ãžï¼ï¼‰ Vã¨Cを切り離㙠Reduxã¨ã‹Flux系ライブラリã¸ã®ä¾å˜ã‚’切り離㙠ã‚ãŸã‚ŠãŒãƒã‚¤ãƒ³ãƒˆã‹ãªã¨ã€‚ Vã¨Cを切り離㙠Reactコンãƒãƒ¼ãƒãƒ³ãƒˆã¯ æ°—ã‚’ã¤ã‘ãªã„ã¨ã€MVCã§ã„ã†ã¨ã“ã‚ã®Vã¨Cã‚’å…¼ããŸä½œã‚Šã«ãªã‚ŠãŒã¡ï¼ˆFluxアーã‚テクãƒãƒ£ã‚’採ã£ãŸã¨ã—ã¦ã‚‚ï¼ï¼‰ 以下ã®ã‚ˆã†ã«åˆ¥ã€…ã«ã‚ã‘ã‚‹ã¨ã‚ˆã‚Šè‰¯ã„作りã«ãªã‚‹ コントãƒãƒ¼ãƒ©çš„ãªã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆï¼ˆSmart
Implementing Japanese Subtitles on Netflix
Japanese subtitles were first made available on the Netflix service as a part of the Japanese launch in September 2015. This blog post provides a technical description of the work we did leading up to this launch. We cover topics including our specification for source subtitle files, the transformation model from source subtitle files to those deliverable on the Netflix service, the model for deli
RE guide for beginners: Methodology and tools
Hi fellas, A few days ago, I decided to start my adventure in the reverse engineering domain. I was quickly overwhelmed by a bunch of information and op codes that confused me a lot, even with solid knowledge in assembly and programming. Reverse engineering can seem complex at the first glance, however, with a good methodology and toolkit, everything becomes more significant. This article claims t
CodeIQã«ã¤ã„ã¦ã®ãŠçŸ¥ã‚‰ã›
2018å¹´4月25日をもã¡ã¾ã—ã¦ã€ 『CodeIQã€ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è…•è©¦ã—サービスã€å¹´åŽç¢ºç´„スカウトサービスã¯ã€ ITエンジニアã®ãŸã‚ã®å¹´åŽç¢ºç´„スカウトサービス『moffers by CodeIQã€https://moffers.jp/ ã¸ä¸€æœ¬åŒ–ã„ãŸã—ã¾ã—ãŸã€‚ ã“ã‚Œã¾ã§å¤šãã®ITエンジニアã®æ–¹ã«ã€ŽCodeIQã€ã‚’ã”利用ã„ãŸã ãã¾ã—ã¦ã€ 改ã‚ã¦å¿ƒã‚ˆã‚Šæ·±ã御礼申ã—上ã’ã¾ã™ã€‚ ã¾ãŸã€ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãŸã‚ã®Webマガジン「CodeIQ MAGAZINEã€ã¯ã€ リクナビNEXTジャーナル( https://next.rikunabi.com/journal/ )ã«ä¸€éƒ¨ã®è¨˜äº‹ã®ç§»è¡Œã‚’予定ã—ã¦ãŠã‚Šã¾ã™ã€‚ 今後ã¯ã€Žmoffers by CodeIQã€ã«ã¦ã€ ITエンジニアã®çš†æ§˜ã®ã‚ˆã‚Šè‰¯ã„転è·ã‚’サãƒãƒ¼ãƒˆã™ã‚‹ãŸã‚ã«ã€ã‚ˆã‚Šä¸€å±¤åŠªã‚ã¦ã¾ã„ã‚Šã¾ã™ã®ã§ã€ 引ã続ãã”愛顧ã®ã»ã©ä½•å’よã‚ã—ããŠé¡˜ã„申ã—上ã’ã¾ã™ã€‚ ã¾ãŸã€Cod
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ゼãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活 - Qiita
（訳者注: ã“ã‚Œã¯ã€JavaScript Stack from Scratchを翻訳ã—ã€ã¾ã¨ã‚ã¦èªã‚るよã†ã«1ファイルã«ã—ãŸã‚‚ã®ã§ã™ã€‚å…ƒã®ç¿»è¨³ã¨å„種ファイルã«ã¤ã„ã¦ã¯ã€æ—¥æœ¬èªžè¨³forkリãƒã‚¸ãƒˆãƒªã‚’å‚ç…§ã—ã¦ãã ã•ã„。ã¾ãŸã€åŽŸæ–‡ãŒæ´»ç™ºã«æ›´æ–°ã•ã‚Œã¦ã„ã‚‹ãŸã‚ã€è¨³æ–‡ã‚‚追従ã—ã¦æ›´æ–°ã•ã‚Œã¾ã™ã€‚ã”了承ãã ã•ã„。） ゼãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活 モダンJavaScriptスタックãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã€ã‚¼ãƒã‹ã‚‰å§‹ã‚ã‚‹JavaScript生活ã¸ã‚ˆã†ã“ã。 âš ï¸ï¸ ã“ã®ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã®ãƒ¡ã‚¸ãƒ£ãƒ¼ã‚¢ãƒƒãƒ—デート版を3月åˆæ—¬ã«å…¬é–‹ã™ã‚‹äºˆå®šã§ã™ã€‚ã”期待下ã•ã„! より詳ã—ã(英語). ã“ã‚Œã¯JavaScriptスタックを使ã„始ã‚ã‚‹ãŸã‚ã®æœ€çŸæœ€é€Ÿã®ã‚¬ã‚¤ãƒ‰ã§ã™ã€‚ã“ã®ã‚¬ã‚¤ãƒ‰ã¯ä¸€èˆ¬çš„ãªãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®çŸ¥è˜ã¨JavaScriptã®åŸºç¤Žã‚’å‰æã¨ã—ã¦ã„ã¾ã™ã€‚ã“れら全ã¦ã®ãƒ„ールを一緒ã«ã¤ãªãŽåˆã‚ã›ã‚‹ã“ã¨ã«ãƒ•ã‚©ãƒ¼ã‚«ã‚¹ã—ã¦ãŠã‚Šã€å„ツールã«ã¤
Epoll is fundamentally broken 1/2 — Idea of the day
In previous articles we talked about: The history of the Select(2) syscall Select(2) being fundamentally broken This time we'll focus on Linux's select(2) successor - the epoll(2) I/O multiplexing syscall. Epoll is relatively young. It was created by Davide Libenzi in 2002. For comparison: Windows did IOCP in 1994 and FreeBSD's kqueue was introduced in July 2000. Unfortunately, even though epoll i
Lock-freedom without garbage collection · Aaron Turon
Lock-freedom without garbage collection 27 Aug 2015 TL;DR It’s widespread folklore that one advantage of garbage collection is the ease of building high-performance lock-free data structures. Manual memory management for these data structures is not easy, and a GC makes it trivial. This post shows that, using Rust, it’s possible to build a memory management API for concurrent data structures that:
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