child::link::ipc(3pm) [debian man page]

Child::Link::IPC(3pm)					User Contributed Perl Documentation				     Child::Link::IPC(3pm)

NAME

       Child::Link::IPC - Base class for process links that provide IPC.

SEE ALSO

       This class inherits from:

       Child::Link

METHODS

       $proc->new( $pid. @shared )
	   Constructor

       $proc->read()
	   Read a message from the child.

       $proc->write( @MESSAGES )
	   Send the messages to the child. works like print, you must add "
".

       $proc->say( @MESSAGES )
	   Send the messages to the child. works like say, adds the seperator for you (usually "
").

       $proc->autoflush( $BOOL )
	   Turn autoflush on/off for the current processes write handle. This is on by default.

       $proc->flush()
	   Flush the current processes write handle.

       $proc->ipc()
       $proc->_ipc( $new )
	   Accessors for you to use or ignore.

ABSTRACT METHODS

       $proc->read_handle()
	   Should return a read handle for reading from the child.

       $proc->write_handle()
	   Should return a write handle for writing to the child.

       $proc->init( @shared )
	   Called by new during construction

HISTORY

       Most of this was part of Parrallel::Runner intended for use in the Fennec project. Fennec is being broken into multiple parts, this is one
       such part.

FENNEC PROJECT

       This module is part of the Fennec project. See Fennec for more details.	Fennec is a project to develop an extendable and powerful testing
       framework.  Together the tools that make up the Fennec framework provide a potent testing environment.

       The tools provided by Fennec are also useful on their own. Sometimes a tool created for Fennec is useful outside the greator framework.
       Such tools are turned into their own projects. This is one such project.

       Fennec - The core framework
	 The primary Fennec project that ties them all together.

AUTHORS

       Chad Granum exodist7@gmail.com

COPYRIGHT

       Copyright (C) 2010 Chad Granum

       Child is free software; Standard perl licence.

       Child is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       FITNESS FOR A PARTICULAR PURPOSE.  See the license for more details.

perl v5.10.1							    2011-03-07						     Child::Link::IPC(3pm)

Dpkg::Compression::Process(3)					   libdpkg-perl 				     Dpkg::Compression::Process(3)

NAME

       Dpkg::Compression::Process - run compression/decompression processes

DESCRIPTION

       This module provides an object oriented interface to run and manage compression/decompression processes.

METHODS

       my $proc = Dpkg::Compression::Process->new(%opts)
	   Create a new instance of the object. Supported options are "compression" and "compression_level" (see corresponding set_* functions).

       $proc->set_compression($comp)
	   Select the compression method to use. It errors out if the method is not supported according to "compression_is_supported" (of
	   Dpkg::Compression).

       $proc->set_compression_level($level)
	   Select the compression level to use. It errors out if the level is not valid according to "compression_is_valid_level" (of
	   Dpkg::Compression).

       my @exec = $proc->get_compress_cmdline()
       my @exec = $proc->get_uncompress_cmdline()
	   Returns a list ready to be passed to "exec", its first element is the program name (either for compression or decompression) and the
	   following elements are parameters for the program.

	   When executed the program acts as a filter between its standard input and its standard output.

       $proc->compress(%opts)
	   Starts a compressor program. You must indicate where it will read its uncompressed data from and where it will write its compressed
	   data to.  This is accomplished by passing one parameter "to_*" and one parameter "from_*" as accepted by Dpkg::IPC::spawn.

	   You must call "wait_end_process" after having called this method to properly close the sub-process (and verify that it exited without
	   error).

       $proc->uncompress(%opts)
	   Starts a decompressor program. You must indicate where it will read its compressed data from and where it will write its uncompressed
	   data to.  This is accomplished by passing one parameter "to_*" and one parameter "from_*" as accepted by Dpkg::IPC::spawn.

	   You must call "wait_end_process" after having called this method to properly close the sub-process (and verify that it exited without
	   error).

       $proc->wait_end_process(%opts)
	   Call Dpkg::IPC::wait_child to wait until the sub-process has exited and verify its return code. Any given option will be forwarded to
	   the "wait_child" function. Most notably you can use the "nocheck" option to verify the return code yourself instead of letting
	   "wait_child" do it for you.

AUTHOR

       Raphael Hertzog <hertzog@debian.org>.

1.16.15 							    2014-06-05					     Dpkg::Compression::Process(3)