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84 lines
2.5 KiB
Text
84 lines
2.5 KiB
Text
pty extension version 0.3 by A.ito
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1. Introduction
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This extension module adds ruby a functionality to execute an
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arbitrary command through pseudo tty (pty).
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2. Install
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Follow the instruction below.
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(1) Execute
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ruby extconf.rb
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then Makefile is generated.
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(3) Do make; make install.
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3. What you can do
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This extension module defines a module named PTY, which contains
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following module fungtions:
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getpty(command)
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spawn(command)
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This function reserves a pty, executes command over the pty
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and returns an array. The return value is an array with three
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elements. The first element in the array is for reading and the
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second for writing. The third element is the process ID of the
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child process. If this function is called with an iterator block,
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the array is passed to the block as block parameters, and the
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function itself returns nil.
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When the child process is suspended or finished, an exception is
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raised. If this function is called with an iterator block,
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exception is raised only within the block. Child process
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monitor is terminated on block exit.
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protect_signal
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reset_signal
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These functions are obsolete in this version of pty.
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PTY.open
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Allocates a pty (pseudo-terminal).
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It returns an array which contains an IO object and a File object.
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The former is the master of the pty.
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The latter is the slave of the pty.
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If a block is given, it yields the array instead of return.
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The value of the block is returned.
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master_io and slave_file is closed when return if they are not closed.
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PTY.check(pid[, raise=false])
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checks the status of the child process specified by pid, and
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returns nil if the process is still alive and active.
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Otherwise, returns Process::Status about the process if raise is
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false, or PTY::ChildExited exception is raised.
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4. License
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(C) Copyright 1998 by Akinori Ito.
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This software may be redistributed freely for this purpose, in full
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or in part, provided that this entire copyright notice is included
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on any copies of this software and applications and derivations thereof.
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This software is provided on an "as is" basis, without warranty of any
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kind, either expressed or implied, as to any matter including, but not
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limited to warranty of fitness of purpose, or merchantability, or
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results obtained from use of this software.
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5. Bug report
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Please feel free to send E-mail to
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aito@ei5sun.yz.yamagata-u.ac.jp
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for any bug report, opinion, contribution, etc.
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