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Full Discussion: Perl program to simulate Least Recently Loaded paging
Top Forums Shell Programming and Scripting Perl program to simulate Least Recently Loaded paging Post 302559517 by Skrynesaver on Tuesday 27th of September 2011 09:34:47 AM
Old 09-27-2011
oops I forgot to generalise the frame length when setting the values.
Code:
#!/usr/bin/perl
use strict;


# In a production system these should be validated before progessing, but for now...
print "Page access: ";
chomp(my @pa=split(/,\s+/,<STDIN>)); # assumes separated by comma and spaces as in your example
print "Frames: ";
chomp(my $frames=<STDIN>);


my @frames; # set up an array to hold an array for each frame. 
for (my$count=0;$count<$frames;$count++){ #Process the array of arrays (see perldoc perlref for details of using array references)
        for (my $index=0;$index<@pa;$index++){ #Deep copying the elements of the Page access into each frame array
                ${$frames[$count]}[$index]=$pa[$index];
        }
        @{$frames[$count]}[0 .. ($count - 1)]=split('',"-"x$count) if $count; #Set the leading irrellevant values to '-'
        for (my $index=$count;$index<@{$frames[$count]};$index+=$frames){ # go through the frame array by whatever frame size we set
                for my $x (1..($frames -1)){ #set $frame size elements
                        ${$frames[$count]}[$index + $x] =$pa[$index];
                }
        }
        #truncate the array at the size of @pa
        @{$frames[$count]}=@{$frames[$count]}[0..(@pa - 1)];
}
#Print out your results
my $count=1;
print "PA:\t",join(' ', @pa),"\n";
for my $frame_array_ref (@frames){
        print " F$count:\t",join(' ', @{$frame_array_ref}),"\n";
        $count++;
}

This User Gave Thanks to Skrynesaver For This Post:
guidely
 

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pdl::perldl2::perldl2

Perldl2(3pm)						User Contributed Perl Documentation					      Perldl2(3pm)

NAME

       PDL::Perldl2::Profile::Perldl2 - profile for Perldl2 shell

SYNOPSIS

	   system> re.pl --profile=PDL::Perldl2::Profile::Perldl2  # unix-ish shell
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	   Perldl2 Shell v0.004
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	   Loaded plugins:
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	     CompletionDriver::Keywords
	     CompletionDriver::LexEnv
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	   Type 'help' for online help

	   Type Ctrl-D or quit to exit

	   Loaded PDL v2.4.9

	   pdl>

DESCRIPTION

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SEE ALSO

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AUTHOR

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COPYRIGHT AND LICENSE

       Copyright (C) 2010 by Christopher Marshall

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

perl v5.14.2							    2012-05-20							      Perldl2(3pm)
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