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admin_apcuinfo.php
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admin_apcuinfo.php
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<?php
/*
+----------------------------------------------------------------------+
| APC |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2011 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Ralf Becker <[email protected]> |
| Rasmus Lerdorf <[email protected]> |
| Ilia Alshanetsky <[email protected]> |
+----------------------------------------------------------------------+
All other licensing and usage conditions are those of the PHP Group.
Based on https://github.com/krakjoe/apcu/blob/master/apc.php
Implemented into Froxlor: Janos Muzsi <[email protected]>
*/
define('AREA', 'admin');
require './lib/init.php';
$horizontal_bar_size = 950; // 1280px window width
if ($action == 'delete' &&
function_exists('apcu_clear_cache') &&
$userinfo['change_serversettings'] == '1'
) {
apcu_clear_cache();
$log->logAction(ADM_ACTION, LOG_INFO, "cleared APCu cache");
header('Location: ' . $linker->getLink(array('section' => 'apcuinfo', 'page' => 'showinfo')));
exit();
}
if (!function_exists('apcu_cache_info') ||
!function_exists('apcu_sma_info')
) {
standard_error($lng['error']['no_apcuinfo']);
}
if ($page == 'showinfo'
) {
$cache = apcu_cache_info();
$mem = apcu_sma_info();
$time = time();
$log->logAction(ADM_ACTION, LOG_NOTICE, "viewed admin_apcuinfo");
$passtime = $time - $cache['start_time'] > 0 ? $time - $cache['start_time'] : 1; // zero division
$mem_size = $mem['num_seg'] * $mem['seg_size'];
$mem_avail = $mem['avail_mem'];
$mem_used = $mem_size - $mem_avail;
$seg_size = bsize($mem['seg_size']);
$sharedmem = sprintf($lng['apcuinfo']['sharedmemval'], $mem['num_seg'], $seg_size, $cache['memory_type']);
$req_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits'] + $cache['num_misses']) / $passtime) : 0);
$hit_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits']) / $passtime) : 0);
$miss_rate_user = sprintf("%.2f", $cache['num_misses'] ? (($cache['num_misses']) / $passtime) : 0);
$insert_rate_user = sprintf("%.2f", $cache['num_inserts'] ? (($cache['num_inserts']) / $passtime) : 0);
$apcversion = phpversion('apcu');
$phpversion = phpversion();
$number_vars = $cache['num_entries'];
$starttime = date('Y-m-d H:i:s', $cache['start_time']);
$uptime_duration = duration($cache['start_time']);
$size_vars = bsize($cache['mem_size']);
// check for possible empty values that are used in the templates
if (!isset($cache['file_upload_progress'])) {
$cache['file_upload_progress'] = $lng['logger']['unknown'];
}
if (!isset($cache['num_expunges'])) {
$cache['num_expunges'] = $lng['logger']['unknown'];
}
$runtimelines = '';
foreach (ini_get_all('apcu') as $name => $v) {
$value = $v['local_value'];
eval("\$runtimelines.=\"" . getTemplate("settings/apcuinfo/runtime_line") . "\";");
}
$freemem = bsize($mem_avail) . sprintf(" (%.1f%%)", $mem_avail * 100 / $mem_size);
$usedmem = bsize($mem_used) . sprintf(" (%.1f%%)", $mem_used * 100 / $mem_size);
$hits = $cache['num_hits'] . @sprintf(" (%.1f%%)", $cache['num_hits'] * 100 / ($cache['num_hits'] + $cache['num_misses']));
$misses = $cache['num_misses'] . @sprintf(" (%.1f%%)", $cache['num_misses'] * 100 / ($cache['num_hits'] + $cache['num_misses']));
// Fragementation: (freeseg - 1) / total_seg
$nseg = $freeseg = $fragsize = $freetotal = 0;
for ($i = 0; $i < $mem['num_seg']; $i++) {
$ptr = 0;
foreach ($mem['block_lists'][$i] as $block) {
if ($block['offset'] != $ptr) {
++$nseg;
}
$ptr = $block['offset'] + $block['size'];
/* Only consider blocks <5M for the fragmentation % */
if ($block['size'] < (5 * 1024 * 1024))
$fragsize+=$block['size'];
$freetotal+=$block['size'];
}
$freeseg += count($mem['block_lists'][$i]);
}
if ($freeseg > 1) {
$frag = sprintf("%.2f%% (%s out of %s in %d fragments)", ($fragsize / $freetotal) * 100, bsize($fragsize), bsize($freetotal), $freeseg);
} else {
$frag = "0%";
}
foreach (ini_get_all('apcu') as $name => $v) {
$value = $v['local_value'];
}
$img_src1 = '';
$img_src2 = '';
$img_src3 = '';
if (graphics_avail()) {
$img_src = $linker->getLink(array('section' => 'apcuinfo', 'page' => 'img1', 'action' => mt_rand(0, 1000000)));
eval("\$img_src1=\"" . getTemplate("settings/apcuinfo/img_line") . "\";");
$img_src = $linker->getLink(array('section' => 'apcuinfo', 'page' => 'img2', 'action' => mt_rand(0, 1000000)));
eval("\$img_src2=\"" . getTemplate("settings/apcuinfo/img_line") . "\";");
$img_src = $linker->getLink(array('section' => 'apcuinfo', 'page' => 'img3', 'action' => mt_rand(0, 1000000)));
eval("\$img_src3=\"" . getTemplate("settings/apcuinfo/img_line") . "\";");
}
eval("echo \"" . getTemplate("settings/apcuinfo/showinfo") . "\";");
} elseif ($page == 'img1'
) {
$mem = apcu_sma_info();
$size = 460;
$image = imagecreate($size + 5, $size + 5);
$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30);
$col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
$col_black = imagecolorallocate($image, 0, 0, 0);
imagecolortransparent($image, $col_white);
$s = $mem['num_seg'] * $mem['seg_size'];
$a = $mem['avail_mem'];
$x = $y = $size / 2;
$fuzz = 0.000001;
// This block of code creates the pie chart. It is a lot more complex than you
// would expect because we try to visualize any memory fragmentation as well.
$angle_from = 0;
$string_placement = array();
for ($i = 0; $i < $mem['num_seg']; $i++) {
$ptr = 0;
$free = $mem['block_lists'][$i];
uasort($free, 'block_sort');
foreach ($free as $block) {
if ($block['offset'] != $ptr) { // Used block
$angle_to = $angle_from + ($block['offset'] - $ptr) / $s;
if (($angle_to + $fuzz) > 1)
$angle_to = 1;
if (($angle_to * 360) - ($angle_from * 360) >= 1) {
fill_arc($image, $x, $y, $size, $angle_from * 360, $angle_to * 360, $col_black, $col_red);
if (($angle_to - $angle_from) > 0.05) {
array_push($string_placement, array($angle_from, $angle_to));
}
}
$angle_from = $angle_to;
}
$angle_to = $angle_from + ($block['size']) / $s;
if (($angle_to + $fuzz) > 1)
$angle_to = 1;
if (($angle_to * 360) - ($angle_from * 360) >= 1) {
fill_arc($image, $x, $y, $size, $angle_from * 360, $angle_to * 360, $col_black, $col_green);
if (($angle_to - $angle_from) > 0.05) {
array_push($string_placement, array($angle_from, $angle_to));
}
}
$angle_from = $angle_to;
$ptr = $block['offset'] + $block['size'];
}
if ($ptr < $mem['seg_size']) { // memory at the end
$angle_to = $angle_from + ($mem['seg_size'] - $ptr) / $s;
if (($angle_to + $fuzz) > 1)
$angle_to = 1;
fill_arc($image, $x, $y, $size, $angle_from * 360, $angle_to * 360, $col_black, $col_red);
if (($angle_to - $angle_from) > 0.05) {
array_push($string_placement, array($angle_from, $angle_to));
}
}
}
foreach ($string_placement as $angle) {
text_arc($image, $x, $y, $size, $angle[0] * 360, $angle[1] * 360, $col_black, bsize($s * ($angle[1] - $angle[0])));
}
header("Content-type: image/png");
imagepng($image);
exit;
} elseif ($page == 'img2'
) {
$cache = apcu_cache_info();
$size = $horizontal_bar_size;
$image = imagecreate($size + 5, 140);
$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30);
$col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
$col_black = imagecolorallocate($image, 0, 0, 0);
imagecolortransparent($image, $col_white);
$s = $cache['num_hits'] + $cache['num_misses'];
$a = $cache['num_hits'];
fill_box($image, 1, 10, $s ? ($a * ($size - 21) / $s) : $size, 50, $col_black, $col_green/* , sprintf("%.1f%%", $s ? $cache['num_hits'] * 100 / $s : 0) */);
fill_box($image, 1, 80, $s ? max(4, ($s - $a) * ($size - 21) / $s) : $size, 50, $col_black, $col_red/* , sprintf("%.1f%%", $s ? $cache['num_misses'] * 100 / $s : 0) */);
header("Content-type: image/png");
imagepng($image);
exit;
} elseif ($page == 'img3'
) {
$mem = apcu_sma_info();
$size = $horizontal_bar_size;
$image = imagecreate($size, 70);
$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30);
$col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
$col_black = imagecolorallocate($image, 0, 0, 0);
imagecolortransparent($image, $col_white);
$s = $mem['num_seg'] * $mem['seg_size'];
$a = $mem['avail_mem'];
$x = 10;
$y = 0;
// This block of code creates the bar chart. It is a lot more complex than you
// would expect because we try to visualize any memory fragmentation as well.
for ($i = 0; $i < $mem['num_seg']; $i++) {
$ptr = 0;
$free = $mem['block_lists'][$i];
uasort($free, 'block_sort');
foreach ($free as $block) {
if ($block['offset'] != $ptr) { // Used block
$h = ($size - 5) * ($block['offset'] - $ptr) / $s;
if ($h > 0) {
fill_box($image, $y, $x, $h, 50, $col_black, $col_red);
}
$y+=$h;
}
$h = ($size - 5) * ($block['size']) / $s;
if ($h > 0) {
fill_box($image, $y, $x, $h, 50, $col_black, $col_green);
}
$y+=$h;
$ptr = $block['offset'] + $block['size'];
}
if ($ptr < $mem['seg_size']) { // memory at the end
$h = ($size - 5) * ($mem['seg_size'] - $ptr) / $s;
if ($h > 0) {
fill_box($image, $y, $x, $h, 50, $col_black, $col_red, bsize($mem['seg_size'] - $ptr), $j++);
}
}
}
header("Content-type: image/png");
imagepng($image);
exit;
}
function graphics_avail() {
return extension_loaded('gd');
}
// pretty printer for byte values
//
function bsize($s) {
foreach (array('', 'K', 'M', 'G') as $i => $k) {
if ($s < 1024)
break;
$s/=1024;
}
return sprintf("%5.1f %sBytes", $s, $k);
}
function duration($ts) {
global $time;
$years = (int) ((($time - $ts) / (7 * 86400)) / 52.177457);
$rem = (int) (($time - $ts) - ($years * 52.177457 * 7 * 86400));
$weeks = (int) (($rem) / (7 * 86400));
$days = (int) (($rem) / 86400) - $weeks * 7;
$hours = (int) (($rem) / 3600) - $days * 24 - $weeks * 7 * 24;
$mins = (int) (($rem) / 60) - $hours * 60 - $days * 24 * 60 - $weeks * 7 * 24 * 60;
$str = '';
if ($years == 1)
$str .= "$years year, ";
if ($years > 1)
$str .= "$years years, ";
if ($weeks == 1)
$str .= "$weeks week, ";
if ($weeks > 1)
$str .= "$weeks weeks, ";
if ($days == 1)
$str .= "$days day,";
if ($days > 1)
$str .= "$days days,";
if ($hours == 1)
$str .= " $hours hour and";
if ($hours > 1)
$str .= " $hours hours and";
if ($mins == 1)
$str .= " 1 minute";
else
$str .= " $mins minutes";
return $str;
}
function block_sort($array1, $array2) {
if ($array1['offset'] > $array2['offset']) {
return 1;
} else {
return -1;
}
}
function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1, $color2, $text = '', $placeindex = 0) {
$r = $diameter / 2;
$w = deg2rad((360 + $start + ($end - $start) / 2) % 360);
if (function_exists("imagefilledarc")) {
// exists only if GD 2.0.1 is available
imagefilledarc($im, $centerX + 1, $centerY + 1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE);
imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE);
imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL | IMG_ARC_EDGED);
} else {
imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start + 1)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end - 1)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
imagefill($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $color2);
}
if ($text) {
if ($placeindex > 0) {
imageline($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $diameter, $placeindex * 12, $color1);
imagestring($im, 4, $diameter, $placeindex * 12, $text, $color1);
} else {
imagestring($im, 4, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $text, $color1);
}
}
}
function text_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1, $text, $placeindex = 0) {
$r = $diameter / 2;
$w = deg2rad((360 + $start + ($end - $start) / 2) % 360);
if ($placeindex > 0) {
imageline($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $diameter, $placeindex * 12, $color1);
imagestring($im, 4, $diameter, $placeindex * 12, $text, $color1);
} else {
imagestring($im, 4, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $text, $color1);
}
}
function fill_box($im, $x, $y, $w, $h, $color1, $color2, $text = '', $placeindex = '') {
global $col_black;
$x1 = $x + $w - 1;
$y1 = $y + $h - 1;
imagerectangle($im, $x, $y1, $x1 + 1, $y + 1, $col_black);
if ($y1 > $y)
imagefilledrectangle($im, $x, $y, $x1, $y1, $color2);
else
imagefilledrectangle($im, $x, $y1, $x1, $y, $color2);
imagerectangle($im, $x, $y1, $x1, $y, $color1);
if ($text) {
if ($placeindex > 0) {
if ($placeindex < 16) {
$px = 5;
$py = $placeindex * 12 + 6;
imagefilledrectangle($im, $px + 90, $py + 3, $px + 90 - 4, $py - 3, $color2);
imageline($im, $x, $y + $h / 2, $px + 90, $py, $color2);
imagestring($im, 2, $px, $py - 6, $text, $color1);
} else {
if ($placeindex < 31) {
$px = $x + 40 * 2;
$py = ($placeindex - 15) * 12 + 6;
} else {
$px = $x + 40 * 2 + 100 * intval(($placeindex - 15) / 15);
$py = ($placeindex % 15) * 12 + 6;
}
imagefilledrectangle($im, $px, $py + 3, $px - 4, $py - 3, $color2);
imageline($im, $x + $w, $y + $h / 2, $px, $py, $color2);
imagestring($im, 2, $px + 2, $py - 6, $text, $color1);
}
} else {
imagestring($im, 4, $x + 5, $y1 - 16, $text, $color1);
}
}
}