dRuby
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This document discusses dRuby and its use for distributed and web-based programming. Some key points include: - dRuby allows Ruby objects and code to be distributed across multiple processes and computers in a simple way without limitations of Ruby. - It can be used for background processing in Rails applications, building distributed services like fax transmission programs, and more. - Techniques like Rinda tuple spaces can be used for distributed processing with dRuby. Overall, dRuby enables creating distributed applications and services in an easy way using the Ruby language.
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![デモ仝メモアプリ々
? どれぐらいgかメモアプリでみてみる
サ`バのコ`ド
require 'drb/drb'
class Memo
def initialize
@item = []
end
def add(str)
p str
@item.push(str)
end
def list
@item
end
end
5](https://image.slidesharecdn.com/druby-090909195452-phpapp02/85/dRuby-5-320.jpg)
![Rindaによるプロセスのf{
? Rindaとは蛍柊I尖システムLindaのタプル
スペ`スのRubyによるg廾
Tuple Space
write take
Tuple Tuple
[＾Hello￣, ＾World￣] [＾Hello￣, ＾World￣]
7](https://image.slidesharecdn.com/druby-090909195452-phpapp02/85/dRuby-7-320.jpg)
![サンプル仝A\サ`バ々
? A\を麻するシステムを恬ってみる
? タプルのフォ`マットは
C [＾fact￣,恷兜の方忖,Kわりの方忖]
C [＾fact-answer￣,恷兜の方忖,Kわりの方忖,Y惚]
タプルスペ`ス
(1)write (2)take
(4)take (3)write
tmp, m, n = $ts.take(['fact', Integer, Integer])
$ts.write([＾fact￣,1,2])
value = (m..n).inject(1) { |a,b| a*b}
ans = $ts.take([＾fact-answer￣,1,2,nil])
$ts.write(['fact-answer', m, n, value])
8](https://image.slidesharecdn.com/druby-090909195452-phpapp02/85/dRuby-8-320.jpg)
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- Ruby is a dynamic, open-source programming language that is interpreted rather than compiled.
- It was developed in Japan in the 1990s and was influenced by Perl but with a focus on productivity and enjoyment.
- Major new versions of Ruby include Ruby 1.9 which introduced improvements like faster performance with the YARV virtual machine and better support for internationalization.
- The Ruby on Rails web framework launched in 2004 and helped increase Ruby's popularity for web development.Linux Commands
Linux Commandsiwata
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The document contains summaries of common Linux/Unix commands and their functions:
- ls lists the contents of a directory. ls -al shows hidden files and more details.
- cd changes the current directory.
- mkdir creates a new directory.
- rm removes (deletes) a file. rm -r removes a directory and all its contents.
- cp copies a file or directory.
- mv renames or moves a file or directory.
- cat outputs the contents of a file.
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dRuby
- 1. 糸檎顎恢霞による蛍柊?安艶恢プログラミング秘壇 CSNagoya toyoshi 2009/09/06
- 2. dRubyとは(1) ? Rubyのオブジェクトをプロセスやネット ワ`クを埆えてQうための碧Mみ ? クライアント?サ`バモデルのシステムが gに恬れる ? Ruby浙 / Pure Ruby / IDL音勣 ? 別躙競薀ぅ屮薀蠅任△ 2
- 3. dRubyとは(2) ? ｄRubyが拱屬縫優奪肇鍠`クを埆えてく れる クライアント ネットワ`ク サ`バ ObjectX ObjectX dRuby dRuby 3
- 4. dRubyの試喘並箭 ? Railsプラグイン backgrounDRb ? FAX 僕佚崙囮システム幄アンタス ? はてなスクリ`ンショット 4
- 5. デモ仝メモアプリ々 ? どれぐらいgかメモアプリでみてみる サ`バのコ`ド require 'drb/drb' class Memo def initialize @item = [] end def add(str) p str @item.push(str) end def list @item end end 5
- 6. わかったこと ? かんたん ? プロセスの勉凋を埆えた喟A晒ができる ? つまりKVS議な聞い圭もできる オンメモリキャッシュサ`バとして druby をしてみた★払 http://d.hatena.ne.jp/clayfish/20090610/1244634242 6
- 7. Rindaによるプロセスのf{ ? Rindaとは蛍柊I尖システムLindaのタプル スペ`スのRubyによるg廾 Tuple Space write take Tuple Tuple [＾Hello￣, ＾World￣] [＾Hello￣, ＾World￣] 7
- 8. サンプル仝A\サ`バ々 ? A\を麻するシステムを恬ってみる ? タプルのフォ`マットは C [＾fact￣,恷兜の方忖,Kわりの方忖] C [＾fact-answer￣,恷兜の方忖,Kわりの方忖,Y惚] タプルスペ`ス (1)write (2)take (4)take (3)write tmp, m, n = $ts.take(['fact', Integer, Integer]) $ts.write([＾fact￣,1,2]) value = (m..n).inject(1) { |a,b| a*b} ans = $ts.take([＾fact-answer￣,1,2,nil]) $ts.write(['fact-answer', m, n, value]) 8
- 9. そのほかの廣吭泣など ? 歌孚局しとｶ匹 C Marshal.dumpできるものはｶ匹掘できないもの は歌孚局し C ｶ匹靴鈴Hは、､伐燐佞､盒匹 ? GC C eプロセスからだけ歌孚されているオブジェクトが ガベ`ジコレクトの鵑砲覆栽がある ? セキュリティ C Rubyは悲なのですごく裡ない。ACLやUNIXドメ インソケット、∞SAFEなどを聞おう 9
- 10. まとめ ? とてもgに蛍柊オブジェクトシステムが 恬れる ? 瑤ﾚがる 10
- 11. 歌深猟廚覆 ? dRubyによる蛍柊?Webプログラミング C 广宀 v 繍拭 竃井芙 オ`ム芙 11