# NAME RRDTool::Rawish - A RRDtool command wrapper with rawish interface # SYNOPSIS use RRDTool::Rawish; my $rrd = RRDTool::Rawish->new( rrdfile => 'rrdtest.rrd', # option remote => 'rrdtest.com:11111', # option for rrdcached ); my $exit_status = $rrd->create(["DS:rx:DERIVE:40:0:U", "DS:tx:DERIVE:40:0:U", "RRA:LAST:0.5:1:240"], { '--start' => '1350294000', '--step' => '20', '--no-overwrite' => '1', }); my $exit_status = $rrd->update([ "1350294020:0:0", "1350294040:50:100", "1350294060:80:150", "1350294080:100:200", "1350294100:180:300", "1350294120:220:380", "1350294140:270:400" ]); my $img = $rrd->graph('-', [ "DEF:rx=rrdtest2.rrd:rx:LAST", "DEF:tx=rrdtest2.rrd:tx:LAST", "LINE1:rx:rx#00F000", "LINE1:tx#0000F0", ]); # error message $rrd->errstr; # => "ERROR: hogehoge" # DESCRIPTION RRDTool::Rawish is a RRDtool command wrapper class with rawish interface. You can use the class like RRDtool command interface. Almost all of modules with RRD prefix are RRDs module wrappers. It's troublesome to use RRDs with variable environments because it's a XS module and moreover not a CPAN module. In contrast, RRDTool::Rawish has less dependencies and it's easy to install it. # METHODS - my $rrd = RRDTool::Rawish->new(\[%args\]) Creates a new instance of RRDTool::Rawish. - $rrd->version() Returns rrdtool's version like "1.47". - $rrd->errstr() Returns rrdtool's stderr string. If no error occurs, it returns empty string. - $rrd->create($params, \[\\%opts\]) Returns exit status rrdtool create - $rrd->update($params, \[\\%opts\]) Returns exit status rrdtool update - $rrd->graph($filename, $params, \[\\%opts\]) Returns exit status rrdtool graph Returns image binary. - $rrd->dump(\[\\%opts\]) rrdtool dump Returns xml data. - $rrd->restore($xmlfile, \[\\%opts\]) rrdtool restore Returns exit status - $rrd->lastupdate rrdtool lastupdate Returns timestamp - $rrd->fetch rrdtool fetch Returns output lines as an ARRAY refarence - $rrd->xport rrdtool xport Returns xml data - $rrd->info rrdtool info Returns info as a HASH refarence Examples: is $value->{filename}, "rrd_test.rrd"; is $value->{rrd_version}, "0003"; is $value->{step}, 20; is $value->{last_update}, 1350294000; is $value->{header_size}, 904; is $value->{ds}->{rx}->{index}, 0; is $value->{ds}->{rx}->{minimal_heartbeat}, 40; is $value->{ds}->{rx}->{min}, "0.0000000000e+00"; is $value->{ds}->{rx}->{max}, "NaN"; is $value->{ds}->{rx}->{last_ds}, "U"; is $value->{ds}->{rx}->{value}, "0.0000000000e+00"; is $value->{ds}->{rx}->{unknown_sec}, 0; is $value->{ds}->{tx}->{index}, 1; is $value->{ds}->{tx}->{type}, "DERIVE"; is $value->{ds}->{tx}->{minimal_heartbeat}, 40; is $value->{ds}->{tx}->{min}, "0.0000000000e+00"; is $value->{ds}->{tx}->{max}, "NaN"; is $value->{ds}->{tx}->{last_ds}, "U"; is $value->{ds}->{tx}->{value}, "0.0000000000e+00"; is $value->{ds}->{tx}->{unknown_sec}, 0; is $value->{rra}->[0]->{cf}, "LAST"; is $value->{rra}->[0]->{rows}, 240; is $value->{rra}->[0]->{cur_row}, 95; is $value->{rra}->[0]->{pdp_per_row}, 1; is $value->{rra}->[0]->{xff}, "5.0000000000e-01"; is $value->{rra}->[0]->{cdp_prep}->[0]->{value}, "NaN"; is $value->{rra}->[0]->{cdp_prep}->[0]->{unknown_datapoints}, 0; is $value->{rra}->[0]->{cdp_prep}->[1]->{value}, "NaN"; is $value->{rra}->[0]->{cdp_prep}->[1]->{unknown_datapoints}, 0; # AUTHOR Yuuki Tsubouchi `` # THANKS TO Shoichi Masuhara # SEE ALSO [RRDtool Documetation](http://oss.oetiker.ch/rrdtool/) # LICENCE AND COPYRIGHT Copyright (c) 2013, Yuuki Tsubouchi ``. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See [perlartistic](http://search.cpan.org/perldoc?perlartistic).