Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages


home | help
Convert::Binary::C::CaUser(Contributed Perl DocumConvert::Binary::C::Cached(3)

       Convert::Binary::C::Cached - Caching for	Convert::Binary::C

	 use Convert::Binary::C::Cached;
	 use Data::Dumper;

	 # Create a cached object
	 $c = Convert::Binary::C::Cached->new(
		Cache	=> '/tmp/cache.c',
		Include	=> [

	 # Parse 'time.h' and dump the definition of timespec

	 print Dumper($c->struct('timespec'));

       Convert::Binary::C::Cached simply adds caching capability to
       Convert::Binary::C. You can use it in just the same way that you	would
       use Convert::Binary::C. The interface is	exactly	the same.

       To use the caching capability, you must pass the	"Cache"	option to the
       constructor. If you don't pass it, you will receive an ordinary
       Convert::Binary::C object. The argument to the "Cache" option is	the
       file that is used for caching this object.

       The caching algorithm automatically detects when	the cache file cannot
       be used and the original	code has to be parsed.	In that	case, the
       cache file is updated. An update	of the cache file can be triggered by
       one or more of the following factors:

       o The cache file	doesn't	exist, which is	obvious.

       o The cache file	is corrupt, i.e. cannot	be parsed.

       o The object's configuration has	changed.

       o The embedded code for a "parse" method	call has changed.

       o At least one of the files that	the object depends on does not exist
	 or has	a different size or a different	modification or	change

       You cannot call "parse" or "parse_file" more that once when using a
       Convert::Binary::C::Cached object. This isn't a big problem, as you
       usually don't call them multiple	times.

       If a dependency file changes, but the change affects neither the	size
       nor the timestamps of that file,	the caching algorithm cannot detect
       that an update is required.

       Copyright (c) 2002-2020 Marcus Holland-Moritz. All rights reserved.
       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       See Convert::Binary::C.

perl v5.32.1			  2020-11-23	 Convert::Binary::C::Cached(3)


Want to link to this manual page? Use this URL:

home | help