Tk::IO - high level interface to Tk's 'fileevent' mechanism
my $fh = Tk::IO->new(-linecommand => callback, -childcommand => callback);
$fh->exec("command")
$fh->wait
$fh->kill
User Contributed Perl Documentation IO(3)
NAME
Tk::IO - high level interface to Tk's 'fileevent' mechanism
SYNOPSIS
my $fh = Tk::IO->new(-linecommand => callback, -childcommand => callback);
$fh->exec("command")
$fh->wait
$fh->kill
WARNING
INTERFACES TO THIS MODULE MAY CHANGE AS PERL'S IO EVOLVES AND WITH PORT
OF TK4.1
DESCRIPTION
Tk::IO is now layered on perl's IO::Handle class. Interfaces have
changed, and are still evolving.
In theory C methods which enable non-blocking IO as in earlier Tk-b*
release(s) are still there. I have not changed them to use perl's
additional Configure information, or tested them much.
Assumption is that exec is used to fork a child process and a callback
is called each time a complete line arrives up the implied pipe.
"line" should probably be defined in terms of perl's input record
separator but is not yet.
The -childcommand callback is called when end-of-file occurs.
$fh->wait can be used to wait for child process while processing other
Tk events.
$fh->kill can be used to send signal to child process.
BUGS
Still not finished. Idea is to use "exec" to emulate "system" in a
non-blocking manner.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+----------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+----------------------------+
|Availability | library/perl-5/perl-tk-532 |
+---------------+----------------------------+
|Stability | Volatile |
+---------------+----------------------------+
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
http://search.cpan.org/CPAN/authors/id/S/SR/SREZIC/Tk-804.036.tar.gz.
Further information about this software can be found on the open source
community website at http://search.cpan.org/~srezic/Tk.
perl v5.32.0 2013-11-15 IO(3)