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use rrdtool pipe in poller.
git-svn-id: http://www.observium.org/svn/observer/trunk@2631 61d68cd4-352d-0410-923a-c4978735b2b8
This commit is contained in:
Adam Amstrong
+185
-35
@@ -1,54 +1,204 @@
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<?php
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function rrdtool_update($rrdfile, $rrdupdate)
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{
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return rrdtool("update", $rrdfile, $rrdupdate);
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}
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/**
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* Observium Network Management and Monitoring System
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* Copyright (C) 2006-2011, Observium Developers - http://www.observium.org
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* See COPYING for more details.
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*
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* @package rrdtool
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* @author Adam Armstrong <adama@memetic.org>
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*
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*/
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function rrdtool_create($rrdfile, $rrdupdate)
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/**
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* Opens up a pipe to RRDTool using handles provided
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*
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* @return boolean
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* @global config
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* @global debug
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* @param &rrd_process
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* @param &rrd_pipes
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*/
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function rrdtool_pipe_open(&$rrd_process, &$rrd_pipes)
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{
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global $config, $debug;
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$command = $config['rrdtool'] . " create $rrdfile $rrdupdate";
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$command = $config['rrdtool'] . " -";
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if ($debug) { echo($command."\n"); }
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# $command = "/usr/bin/php /home/observium/dev/testpipe.php";
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return shell_exec($command);
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}
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$descriptorspec = array(
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0 => array("pipe", "r"), // stdin is a pipe that the child will read from
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1 => array("pipe", "w"), // stdout is a pipe that the child will write to
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2 => array("pipe", "w") // stderr is a pipe that the child will write to
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);
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function rrdtool_fetch($rrdfile, $rrdupdate)
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{
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return rrdtool("fetch", $rrdfile, $rrdupdate);
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}
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$cwd = $config['rrd_dir'];
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$env = array();
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#function rrdtool_graph($rrdfile, $rrdupdate)
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#{
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# return rrdtool("graph", $rrdfile, $rrdupdate);
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#}
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$rrd_process = proc_open($command, $descriptorspec, $rrd_pipes, $cwd, $env);
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function rrdtool_last($rrdfile, $rrdupdate)
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{
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return rrdtool("last", $rrdfile, $rrdupdate);
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}
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stream_set_blocking($rrd_pipes[1], 0);
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stream_set_blocking($rrd_pipes[2], 0);
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function rrdtool_lastupdate($rrdfile, $rrdupdate)
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{
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return rrdtool("lastupdate", $rrdfile, $rrdupdate);
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}
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function rrdtool($command, $file, $options)
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{
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global $config, $debug;
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$command = $config['rrdtool'] . " $command $file $options";
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if ($config['rrdcached'])
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if (is_resource($rrd_process))
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{
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$command .= " --daemon " . $config['rrdcached'];
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// $pipes now looks like this:
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// 0 => writeable handle connected to child stdin
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// 1 => readable handle connected to child stdout
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// Any error output will be appended to /tmp/error-output.txt
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return TRUE;
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}
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}
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/**
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* Closes the pipe to RRDTool
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*
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* @return integer
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* @param resource rrd_process
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* @param array rrd_pipes
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*/
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function rrdtool_pipe_close(&$rrd_process, &$rrd_pipes)
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{
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if($debug)
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{
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echo stream_get_contents($rrd_pipes[1]);
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echo stream_get_contents($rrd_pipes[2]);
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}
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if ($debug) { echo($command."\n"); }
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fclose($rrd_pipes[0]);
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fclose($rrd_pipes[1]);
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fclose($rrd_pipes[2]);
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return shell_exec($command);
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// It is important that you close any pipes before calling
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// proc_close in order to avoid a deadlock
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$return_value = proc_close($rrd_process);
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if($debug)
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{
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echo $return_value;
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}
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}
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/**
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* Generates a graph file at $graph_file using $options
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* Opens its own rrdtool pipe.
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*
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* @return integer
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* @param string graph_file
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* @param string options
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*/
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function rrdtool_graph($graph_file, $options)
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{
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global $config, $debug;
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rrdtool_pipe_open($rrd_process, $rrd_pipes);
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if (is_resource($rrd_process))
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{
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// $pipes now looks like this:
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// 0 => writeable handle connected to child stdin
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// 1 => readable handle connected to child stdout
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// Any error output will be appended to /tmp/error-output.txt
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if ($config['rrdcached'])
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{
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fwrite($rrd_pipes[0], "graph --daemon " . $config['rrdcached'] . " $graph_file $options");
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} else {
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fwrite($rrd_pipes[0], "graph $graph_file $options");
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}
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rrdtool_pipe_close($rrd_process, $rrd_pipes);
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if($debug)
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{
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echo("<p>");
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if ($debug) { echo("graph $graph_file $options"); }
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echo("</p><p>");
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echo "command returned $return_value\n";
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echo("</p>");
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}
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}
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}
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/**
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* Generates and pipes a command to rrdtool
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*
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* @param string command
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* @param string filename
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* @param string options
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* @global config
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* @global debug
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* @global rrd_pipes
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*/
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function rrdtool($command, $filename, $options)
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{
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global $config, $debug, $rrd_pipes;
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$cmd = "$command $filename $options";
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if ($command != "create" && $config['rrdcached'])
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{
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$cmd .= " --daemon " . $config['rrdcached'];
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}
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fwrite($rrd_pipes[0], $cmd."\n");
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if ($debug)
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{
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echo stream_get_contents($rrd_pipes[1]);
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echo stream_get_contents($rrd_pipes[2]);
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echo("<p>");
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echo("\n".$cmd."\n");
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echo("</p>");
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}
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}
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/**
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* Generates an rrd database at $filename using $options
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*
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* @param string filename
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* @param string options
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*/
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function rrdtool_create($filename, $options)
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{
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return rrdtool("create", $filename, $options);
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}
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function rrdtool_update($filename, $options)
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{
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return rrdtool("update", $filename, $options);
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}
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function rrdtool_fetch($filename, $options)
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{
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return rrdtool("fetch", $filename, $options);
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}
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function rrdtool_last($filename, $options)
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{
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return rrdtool("last", $filename, $options);
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}
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function rrdtool_lastupdate($filename, $options)
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{
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return rrdtool("lastupdate", $filename, $options);
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}
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?>
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