Dpkg::Compression::Process man page on Kali

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

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

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

METHODS
       $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).

       @exec = $proc->get_compress_cmdline()
       @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.

CHANGES
   Version 1.00 (dpkg 1.15.6)
       Mark the module as public.

1.19.0.4			  2017-11-02 Dpkg::Compression::Process(3perl)
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