man Zoidberg::Contractor () - Module to manage jobs

NAME

Zoidberg::Contractor - Module to manage jobs

SYNOPSIS

        use Zoidberg::Contractor;
        my $c = Zoidberg::Contractor->new();

        $c->shell_list( [qw(cat ./log)], '|', [qw(grep -i error)] );

DESCRIPTION

Zoidberg inherits from this module, it manages jobs.

It uses Zoidberg::StringParser.

Also it defines Zoidberg::Job and subclasses.

FIXME lots of documentation

METHODS

new()
Simple constructor, calls CWshell_init().
shell_init()
Initialises things like hashes with signal names and sets terminal control. Should be called before usage when the constructor is overloaded.
round_up()
Recursively calls the CWround_up() function of all current jobs.
shell_list(@blocks)
Executes a list of jobs and logic operators.
shell_job($block)
Executes a single job.
reap_jobs()
Checks for jobs that are finished and removes them from the job list.
job_by_id($id)
Returns a job object based on the (numeric) id. (Note that the job list is un-ordered, so the id and the index are not usually identical.)
job_by_spec($string)
Returns a job object based on a string. The following formats are supported:
%integer
Job with id integer
%+
Current job
%-
Previous job
%?string
Last job matching string
%string
Last job starting with string
sig_by_spec($string)
Returns the signal number for a named signal or undef if no such signal exists.

JOBS

Jobs are objects of the class CWZoidberg::Job or a subclass of this class.

This object AUTOLOADS methods to process signals. For example:

  $job->TERM(); # is identical to
  $job->kill('TERM');

Methods

The job obbjects have the following methods:

new()
Simple constructor.
exec()
Execute the job.
round_up()
Recursively kill the job, ends all child processes forcefully.
fg()
Take terminal control and run this job in the foreground.
bg()
Run this job in the background. Sends CW$signal (numeric or named) to all child processes belonging to this job; CW$signal defaults to SIGTERM. If the boolean CW$wipe_list is set all jobs pending in the same logic list are removed.
env(\%env)
Set local environment for the current job. Can't be set after the job has started.
fd(\@redir)
Set redirections for the current job. Can't be set after the job has started.

AUTHORS

Jaap Karssenberg, <pardus@cpan.org>

Raoul Zwart, <rlzwart@cpan.org>

Copyright 2003 by Jaap Karssenberg

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

zoiddevel(1), Zoidberg, Zoidberg::StringParser