ch10.016_best

来自「Perl Best Practices the source code」· 016_BEST 代码 · 共 30 行

##############################################################################
##   Code fragment (Recommended) from Chapter 10 of "Perl Best Practices"   ##
##     Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved.      ##
##  See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html  ##
##############################################################################


# Standard modules...
use strict;
use warnings;
use IO::Prompt;
use Carp;
use English qw( -no_match_vars );
use Data::Alias;
use Readonly;


# Log system uses a weird but distinctive naming scheme...
Readonly my $ACTIVE_LOG => '>temp.log<';
Readonly my $STATIC_LOG => '>perm.log<';
 
# and later...
use IO::File;
 
my $active = IO::File->new($ACTIVE_LOG, '<')
    or croak "Can't open '$ACTIVE_LOG': $OS_ERROR";
my $static = IO::File->new($STATIC_LOG, '>')
    or croak "Can't open '$STATIC_LOG': $OS_ERROR";