pty ĥ⥸塼 version 0.3 by A.ito

1. Ϥ

γĥ⥸塼ϡtty (pty) ̤Ŭʥޥɤ
¹Ԥ뵡ǽ ruby 󶡤ޤ

2. 󥹥ȡ

Τ褦ˤƥ󥹥ȡ뤷Ƥ

(1)  ruby extconf.rb

    ¹Ԥ Makefile ޤ

(2) make; make install ¹ԤƤ

3. Ǥ뤫

γĥ⥸塼ϡPTY Ȥ⥸塼ޤ
ˤϡΤ褦ʥ⥸塼ؿޤޤƤޤ

   getpty(command)
   spawn(command)

      δؿϡttyݤꤵ줿ޥɤ򤽤βtty
      θǼ¹Ԥ֤ޤͤ3ĤǤʤ
      ǤǽǤϲttyɤ߽ФIO֥ȡ
      2ܤϽ񤭤िIO֥ȡ3ܤϻҥץΥץ
      IDǤδؿƥ졼ȤƸƤФ줿硤
      Ǥϥ֥åѥ᡼ȤϤ졤ؿΤnil֤ޤ

      δؿˤäƺ줿֥ץưƤ֡ҥץ
      ξ֤ƻ뤹뤿 SIGCHLD ʥªޤҥץ
      λߤˤϡ㳰ȯޤδ֡٤Ƥ
      SIGCHLD  PTY ⥸塼ΥʥϥɥªΤǡ
      ֥ץ¾δؿ(system() Ȥ IO.popen()ʤ)
      Ȥȡͽʤ㳰ȯ뤳Ȥޤɤ
      ˤϡprotect_signal()򻲾ȤƤ

      δؿ֥åѥ᡼դǸƤФ줿ˤϡΥ֥å
      ǤΤ SIGCHLD ªޤäơ֥åѥ᡼
      ȤϤ줿IO֥Ȥ򡤥֥åγ˻ФƻȤ
      ϴޤ


   protect_signal

      δؿϥƥ졼Ǥǻꤵ줿֥åǤϡ
      ҥץλƤ㳰ȯޤ󡥤δؿȤȤǡ
      PTYλҥץưƤ֤Ǥ⡤system() IO.popen()ʤɤ
      ؿ˻ȤȤǤޤ㤨С

        PTY.spawn("command_foo") do |r,w|
          ...
          ...
          PTY.protect_signal do
            system "some other commands"
          end
          ...
        end

      Τ褦ʵҤˤꡤ"some other commands" λȤ
      㳰ȯΤɤޤ

    reset_signal

      PTY λҥץưƤƤ⡤Υץνλ㳰ȯ
      ʤ褦ˤޤ

4. ѤˤĤ

ƣ§ͭޤ

ץޤϥɥȤ˸ɽѤ줺
ɽƤ˸¤ꡤïǤ⡤Υեȥ̵
Ԥ̵ǤѡۡѤǤޤŪϸꤵƤޤ


Υץѡۤ¾Υץ˴ط԰٤ˤ
äʤ»ФƤ⡤ԤϰǤ餤ޤ

5. Х

ХݡȤϴޤޤ

	aito@ei5sun.yz.yamagata-u.ac.jp

ޤŻҥ᡼ǥХݡȤ꤯