PHP rrdtool_pipe_open函数代码示例

/**
 * Generates a graph file at $graph_file using $options
 * Opens its own rrdtool pipe.
 *
 * @return integer
 * @param string graph_file
 * @param string options
 */
function rrdtool_graph($graph_file, $options)
{
    global $config, $debug;
    rrdtool_pipe_open($rrd_process, $rrd_pipes);
    if (is_resource($rrd_process)) {
        // $pipes now looks like this:
        // 0 => writeable handle connected to child stdin
        // 1 => readable handle connected to child stdout
        // Any error output will be appended to /tmp/error-output.txt
        if ($config['rrdcached']) {
            fwrite($rrd_pipes[0], "graph --daemon " . $config['rrdcached'] . " {$graph_file} {$options}");
        } else {
            fwrite($rrd_pipes[0], "graph {$graph_file} {$options}");
        }
        fclose($rrd_pipes[0]);
        while (strlen($line) < 1) {
            $line = fgets($rrd_pipes[1], 1024);
            $data .= $line;
        }
        $return_value = rrdtool_pipe_close($rrd_process, $rrd_pipes);
        if ($debug) {
            echo "<p>";
            if ($debug) {
                echo "graph {$graph_file} {$options}";
            }
            echo "</p><p>";
            echo "command returned {$return_value} ({$data})\n";
            echo "</p>";
        }
        return $data;
    } else {
        return 0;
    }
}

              ) temp
            WHERE MOD(temp.rownum, ' . $options['i'] . ') = ?;';
    $doing = $options['n'] . "/" . $options['i'];
    $params[] = $options['n'];
    //print_vars($query);
    //print_vars($params);
}
if (!$where) {
    print_message("%n\nUSAGE:\n{$scriptname} [-drqV] [-i instances] [-n number] [-m module] [-h device]\n\nEXAMPLE:\n-h <device id> | <device hostname wildcard>  Poll single device\n-h odd                                       Poll odd numbered devices  (same as -i 2 -n 0)\n-h even                                      Poll even numbered devices (same as -i 2 -n 1)\n-h all                                       Poll all devices\n-h new                                       Poll all devices that have not had a discovery run before\n\n-i <instances> -n <id/number>                Poll as instance <id/number> of <instances>\n                                             Instance numbers start at 0. 0-3 for -i 4\n                                             Example:\n                                               -i 4 -n 0\n                                               -i 4 -n 1\n                                               -i 4 -n 2\n                                               -i 4 -n 3\n\nOPTIONS:\n -h                                          Device hostname, id or key odd/even/all/new.\n -i                                          Poll instances count.\n -n                                          Instance id (number), must start from 0 and to be less than instances count.\n -q                                          Quiet output.\n -M                                          Show globally enabled/disabled modules and exit.\n -V                                          Show version and exit.\n\nDEBUGGING OPTIONS:\n -r                                          Do not create or update RRDs\n -d                                          Enable debugging output.\n -dd                                         More verbose debugging output.\n -m                                          Specify module(s) (separated by commas) to be run.\n\n%rInvalid arguments!%n", 'color', FALSE);
    exit;
}
if (isset($options['r'])) {
    $config['norrd'] = TRUE;
}
$cache['maint'] = cache_alert_maintenance();
rrdtool_pipe_open($rrd_process, $rrd_pipes);
print_cli_heading("%WStarting polling run at " . date("Y-m-d H:i:s"), 0);
$polled_devices = 0;
if (!isset($query)) {
    $query = "SELECT `device_id` FROM `devices` WHERE `disabled` = 0 {$where} ORDER BY `device_id` ASC";
}
foreach (dbFetch($query, $params) as $device) {
    $device = dbFetchRow("SELECT * FROM `devices` WHERE `device_id` = ?", array($device['device_id']));
    poll_device($device, $options);
    $polled_devices++;
}
$poller_end = utime();
$poller_run = $poller_end - $poller_start;
$poller_time = substr($poller_run, 0, 5);
if ($polled_devices) {
    dbInsert(array('type' => 'poll', 'doing' => $doing, 'start' => $poller_start, 'duration' => $poller_time, 'devices' => $polled_devices), 'perf_times');

function rrdtool_graph($graph_file, $options)
{
    global $config;
    // Note, always use pipes, because standard command line has limits!
    if ($config['rrdcached']) {
        $cmd = 'graph --daemon ' . $config['rrdcached'] . " {$graph_file} {$options}";
    } else {
        $cmd = "graph {$graph_file} {$options}";
    }
    $GLOBALS['rrd_status'] = FALSE;
    $GLOBALS['exec_status'] = array('command' => $config['rrdtool'] . ' ' . $cmd, 'stdout' => '', 'exitcode' => -1);
    $start = microtime(TRUE);
    rrdtool_pipe_open($rrd_process, $rrd_pipes);
    if (is_resource($rrd_process)) {
        // $pipes now looks like this:
        // 0 => writeable handle connected to child stdin
        // 1 => readable handle connected to child stdout
        // Any error output will be appended to /tmp/error-output.txt
        fwrite($rrd_pipes[0], $cmd);
        fclose($rrd_pipes[0]);
        $iter = 0;
        while (strlen($line) < 1 && $iter < 1000) {
            // wait for 10 milliseconds to loosen loop
            usleep(10000);
            $line = fgets($rrd_pipes[1], 1024);
            $stdout .= $line;
            $iter++;
        }
        $stdout = preg_replace('/(?:\\n|\\r\\n|\\r)$/D', '', $stdout);
        // remove last (only) eol
        unset($iter);
        $runtime = microtime(TRUE) - $start;
        // Check rrdtool's output for the command.
        if (preg_match('/\\d+x\\d+/', $stdout)) {
            $GLOBALS['rrd_status'] = TRUE;
        } else {
            $stderr = trim(stream_get_contents($rrd_pipes[2]));
            if (isset($config['rrd']['debug']) && $config['rrd']['debug']) {
                logfile('rrd.log', "RRD {$stderr}, CMD: " . $GLOBALS['exec_status']['command']);
            }
        }
        $exitcode = rrdtool_pipe_close($rrd_process, $rrd_pipes);
        $GLOBALS['exec_status']['exitcode'] = $exitcode;
        $GLOBALS['exec_status']['stdout'] = $stdout;
        $GLOBALS['exec_status']['stderr'] = $stderr;
    } else {
        $runtime = microtime(TRUE) - $start;
        $stdout = NULL;
    }
    $GLOBALS['exec_status']['runtime'] = $runtime;
    // Add some data to global array $graph_return
    $GLOBALS['graph_return']['status'] = $GLOBALS['rrd_status'];
    $GLOBALS['graph_return']['command'] = $GLOBALS['exec_status']['command'];
    $GLOBALS['graph_return']['filename'] = $graph_file;
    $GLOBALS['graph_return']['output'] = $stdout;
    $GLOBALS['graph_return']['runtime'] = $GLOBALS['exec_status']['runtime'];
    if (OBS_DEBUG) {
        print_message(PHP_EOL . 'RRD CMD[%y' . $cmd . '%n]', 'console', FALSE);
        $debug_msg = 'RRD RUNTIME[' . ($runtime > 0.1 ? '%r' : '%g') . round($runtime, 4) . 's%n]' . PHP_EOL;
        $debug_msg .= 'RRD STDOUT[' . ($GLOBALS['rrd_status'] ? '%g' : '%r') . $stdout . '%n]' . PHP_EOL;
        if ($stderr) {
            $debug_msg .= 'RRD STDERR[%r' . $stderr . '%n]' . PHP_EOL;
        }
        $debug_msg .= 'RRD_STATUS[' . ($GLOBALS['rrd_status'] ? '%gTRUE' : '%rFALSE') . '%n]';
        print_message($debug_msg . PHP_EOL, 'console');
    }
    return $stdout;
}

function rrdtool_graph_xport($options)
{
    global $config;
    $debug = 1;
    header('Content-type: text/html');
    if (substr_count($options, '--alt-autoscale-max') > 1) {
        $options = substr($options, strripos($options, '--alt-autoscale-max'));
    }
    $options = str_replace(array('--alt-autoscale-max ', '--rigid ', '-E'), '', $options);
    $options = preg_replace(array('/--(width|height)\\s[\\d]+/', '/-c\\s[^\\s]+/', '/--font\\s[^\\s]+/', '/--font-render-mode\\s[^\\s]+/', '/-R\\s[^\\s]+/'), '', $options);
    $xport = "";
    if (preg_match_all("/(?<=\\s)DEF:[\\s]?([a-zA-Z]+)(?==)/", $options, $matches)) {
        $def = $matches[1];
        foreach ($def as $d) {
            $xport .= "XPORT:" . $d . ":" . "\"" . str_replace(":", "", $d) . "\" ";
        }
    }
    rrdtool_pipe_open($rrd_process, $rrd_pipes);
    if (is_resource($rrd_process)) {
        // $pipes now looks like this:
        // 0 => writeable handle connected to child stdin
        // 1 => readable handle connected to child stdout
        // Any error output will be appended to /tmp/error-output.txt
        fwrite($rrd_pipes[0], "xport {$graph_file} {$options} {$xport}");
        fclose($rrd_pipes[0]);
        while (strlen($line) < 1) {
            // wait for 10 milliseconds to loosen loop
            usleep(10000);
            $line = fgets($rrd_pipes[1], 1024);
            $data .= $line;
        }
        $return_value = rrdtool_pipe_close($rrd_process, $rrd_pipes);
        return $data;
    } else {
        return 0;
    }
}