マルチスレッドプログラミングは難しい
C# を使って、複数スレッドで協調動作する簡単なメッセージキューの 作成がいかに苦労するかというのをお見せします。(約62分) まとめ: キューのみ → エラーになる。 キュー + spin lock (ポーリング) → 動くけどCPUの無駄。 キュー + ウェイト×1 → 一度に複数回 送られたらダメ。 キュー + ウェイト×2 (ぎっこんばったん方式) → queue じゃない。 キュー + ウェイト + 条件判定 → 受け取り側が複数個あるとダメ。 キュー + Semaphore → ようやく完成。 マルチスレッドプログラミングは世界を滅ぼす。 参考資料: Unixで動くC#コンパイラ: gmcs (Mono), cscc (dotgnu, C#) エディタ: Emacs で csharp-mode.el。 文書: monodoc, ECMA-335。 (新山はこのツールでXMLをプ
Building Ruby in Smalltalk
Here's Martin McClure from Gemstone, talking about building Ruby in Smalltalk. This is from the MagLev project that Gemstone has been working on, and the talk was at ESUG 2009. To watch, click on the viewer below: If you have trouble viewing that directly, you can click here to download the video directly You can also watch it on Vimeo: Ruby in Smalltalk at ESUG 2009 from James Robertson on Vimeo.
David Heinemeier Hansson at WindyCityRails 2008 | Omnisio
David Heinemeier Hansson, creator of Ruby on Rails, answers questions at WindyCityRails 2008. The event was produced by ChicagoRuby.org and held Saturd... (more) David Heinemeier Hansson, creator of Ruby on Rails, answers questions at WindyCityRails 2008. The event was produced by ChicagoRuby.org and held Saturday, September 20, 2008 at the Illinois Institute of Technology. (less) David Heinemeier
YouTube - Urban Reconstruction and Modeling for Building Virtual Worlds
Google Tech Talks March, 11 2008 ABSTRACT Creating digital content for virtual worlds remains a significant challenge, especially for urban environments, which are among the largest and most complex. As display capabilities improve and audience expectations grow, procedural modeling techniques are becoming an increasingly important supplement to traditional modeling software. In this talk, we pr
404 お探しのページが見つかりません | 京都大学霊長類研究所 - チンパンジーアイ
誠にお手数ではございますが、「チンパンジーアイ」トップページもしくはサイトマップ(目次)からお探しくださいますようお願い申し上げます。 Page Not Found The page you were trying to reach could not found. We have recently redesigned our site and you may have asked for a page which has moved to a new location. If you were trying to see a page please go to the sitemap page or our home page. Thank you in advance.
My interview with Steve Yegge on Rhino on Rails on Dion Almaer's Blog
I have been a long time follower of Steve Yegge and his long blog entries that manage to keep your attention. He has the opposite style to me (I know how curt and bad my writing style is!), so I envy it a little. Ever since he presented on the ‘Google Rails Clone’ at FooCamp and posted about the internal Google Rhino on Rails project, people have been curious to learn more. What does it mean to po
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Ruby on Rails vs Smalltalk Seaside をお手軽にムービーで鑑賞 - Smalltalkのtは小文字です
Smalltalk Tidbits, Industry Rants - Seaside and Rails Comparison Rails と Seaside でそれぞれ "Hello World!" Web アプリを作った（Ruby on Rails は出来合いのものを使用？）あと、バグを仕込んでわざとエラーを起こさせ、簡単なデバッグ作業を比較してみせる５分弱のムービーです。Seaside には Squeak Smalltalk ではなく、Cincom Smalltalk(VisualWorks）を使っています。VisualWorks のコードブラウザの使い方（クラスの新規作成やそれへのメソッドの追加や修正方法…）の入門にもお勧め。 個人的には、ちょうど Leopard をインストールしたところなので、こんなかんじの WebObjects 版みたいなのがあると併せて試せてうれしいですね
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The Seaside Heresy (at OTUG)