XCache is a fast, stable PHP opcode cacher that has been proven and is now running on production servers under high load. https://xcache.lighttpd.net/
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<?php
include "./common.php";
function freeblock_to_graph($freeblocks, $size) // {{{
{
global $config;
// cached in static variable
static $graph_initial;
if (!isset($graph_initial)) {
$graph_initial = array_fill(0, $config['percent_graph_width'], 0);
}
$graph = $graph_initial;
foreach ($freeblocks as $b) {
$begin = $b['offset'] / $size * $config['percent_graph_width'];
$end = ($b['offset'] + $b['size']) / $size * $config['percent_graph_width'];
if ((int) $begin == (int) $end) {
$v = $end - $begin;
$graph[(int) $v] += $v - (int) $v;
}
else {
$graph[(int) $begin] += 1 - ($begin - (int) $begin);
$graph[(int) $end] += $end - (int) $end;
for ($i = (int) $begin + 1, $e = (int) $end; $i < $e; $i ++) {
$graph[$i] += 1;
}
}
}
$html = array();
$c = 255;
foreach ($graph as $k => $v) {
if ($config['percent_graph_type'] != 'free') {
$v = 1 - $v;
}
$v = (int) ($v * $c);
$r = $g = $c - $v;
$b = $c;
$html[] = '<div style="background: rgb(' . "$r,$g,$b" . ')"></div>';
}
return implode('', $html);
}
// }}}
function calc_total(&$total, $data) // {{{
{
foreach ($data as $k => $v) {
switch ($k) {
case 'type':
case 'cache_name':
case 'cacheid':
case 'free_blocks':
continue 2;
}
if (!isset($total[$k])) {
$total[$k] = $v;
}
else {
switch ($k) {
case 'hits_by_hour':
case 'hits_by_second':
foreach ($data[$k] as $kk => $vv) {
$total[$k][$kk] += $vv;
}
break;
default:
$total[$k] += $v;
}
}
}
}
// }}}
function array_avg($a) // {{{
{
if (count($a) == 0) {
return '';
}
return array_sum($a) / count($a);
}
// }}}
function bar_hits_percent($v, $percent, $active) // {{{
{
$r = 220 + (int) ($percent * 25);
$g = $b = 220 - (int) ($percent * 220);
$percent = (int) ($percent * 100);
$a = $active ? ' class="active"' : '';
$height = 20 - 1 * 2;
$valueHeight = ceil($height * $percent / 100);
$paddingHeight = $height - $valueHeight;
$valueHeight = $valueHeight ? $valueHeight . "px" : 0;
$paddingHeight = $paddingHeight ? $paddingHeight . "px" : 0;
return '<a title="' . $v . '" href="javascript:;"' . $a . '>'
. ($paddingHeight ? '<span style="height: ' . $paddingHeight . '"></span>' : '')
. ($valueHeight ? '<span style="background: rgb(' . "$r,$g,$b" . '); height: ' . $valueHeight . '"></span>' : '')
. '</a>';
}
// }}}
function get_cache_hits_graph($ci, $key) // {{{
{
global $maxHitsByHour;
if ($ci['cacheid'] == -1) {
$max = max($ci[$key]);
}
else {
$max = $maxHitsByHour[$ci['type']];
}
if (!$max) {
$max = 1;
}
$t = (time() / (60 * 60)) % 24;
$html = array();
$width = count($ci[$key]) * 2;
$html[] = '<div class="hitsgraph" style="width: ' . $width . 'px">';
foreach ($ci[$key] as $i => $v) {
$html[] = bar_hits_percent($v, $v / $max, $i == $t);
}
$html[] = "</div>";
return implode('', $html);
}
// }}}
function getModuleInfo() // {{{
{
ob_start();
phpinfo(INFO_MODULES);
$moduleInfo = ob_get_clean();
if (!preg_match_all('!(XCache[^<>]*)</a></h2>(.*?)<h2>!is', $moduleInfo, $m)) {
return;
}
$moduleInfo = array();
foreach ($m[1] as $i => $dummy) {
$caption = trim($m[1][$i]);
$info = str_replace('<br />', '', trim($m[2][$i]));
$regex = '!<table[^>]*>!';
if (preg_match($regex, $info)) {
$moduleInfo[] = preg_replace($regex, "\\0<caption>$caption</caption>", $info, 1);
}
else {
$moduleInfo[] = "<h3>$caption</h3>";
$moduleInfo[] = $info;
}
}
$moduleInfo = implode('', $moduleInfo);
if (ini_get("xcache.test")) {
ob_start();
include "./sub/testcoredump.tpl.php";
$test_coredump = trim(ob_get_clean());
$moduleInfo = str_replace('xcache.coredump_directory', 'xcache.coredump_directory' . $test_coredump, $moduleInfo);
}
return $moduleInfo;
}
// }}}
function getCacheInfos() // {{{
{
static $cacheInfos;
if (isset($cacheInfos)) {
return $cacheInfos;
}
$phpCacheCount = xcache_count(XC_TYPE_PHP);
$varCacheCount = xcache_count(XC_TYPE_VAR);
$cacheInfos = array();
$total = array();
global $maxHitsByHour;
$maxHitsByHour = array(0, 0);
for ($i = 0; $i < $phpCacheCount; $i ++) {
$data = xcache_info(XC_TYPE_PHP, $i);
if ($_GET['do'] === 'listphp') {
$data += xcache_list(XC_TYPE_PHP, $i);
}
$data['type'] = XC_TYPE_PHP;
$data['cache_name'] = "php#$i";
$data['cacheid'] = $i;
$cacheInfos[] = $data;
$maxHitsByHour[XC_TYPE_PHP] = max($maxHitsByHour[XC_TYPE_PHP], max($data['hits_by_hour']));
if ($phpCacheCount >= 2) {
calc_total($total, $data);
}
}
if ($phpCacheCount >= 2) {
$total['type'] = XC_TYPE_PHP;
$total['cache_name'] = _T('Total');
$total['cacheid'] = -1;
$total['gc'] = null;
$total['istotal'] = true;
unset($total['compiling']);
$cacheInfos[] = $total;
}
$total = array();
for ($i = 0; $i < $varCacheCount; $i ++) {
$data = xcache_info(XC_TYPE_VAR, $i);
if ($_GET['do'] === 'listvar') {
$data += xcache_list(XC_TYPE_VAR, $i);
}
$data['type'] = XC_TYPE_VAR;
$data['cache_name'] = "var#$i";
$data['cacheid'] = $i;
$cacheInfos[] = $data;
$maxHitsByHour[XC_TYPE_VAR] = max($maxHitsByHour[XC_TYPE_VAR], max($data['hits_by_hour']));
if ($varCacheCount >= 2) {
calc_total($total, $data);
}
}
if ($varCacheCount >= 2) {
$total['type'] = XC_TYPE_VAR;
$total['cache_name'] = _T('Total');
$total['cacheid'] = -1;
$total['gc'] = null;
$total['istotal'] = true;
$cacheInfos[] = $total;
}
return $cacheInfos;
}
// }}}
function getEntryList() // {{{
{
static $entryList;
if (isset($entryList)) {
return $entryList;
}
$entryList = array('cache_list' => array(), 'deleted_list' => array());
if ($_GET['do'] == 'listphp') {
$entryList['type'] = XC_TYPE_PHP;
}
else {
$entryList['type'] = XC_TYPE_VAR;
}
foreach (getCacheInfos() as $i => $c) {
if (!empty($c['istotal'])) {
continue;
}
if ($c['type'] == $entryList['type'] && isset($c['cache_list'])) {
foreach ($c['cache_list'] as $e) {
$e['cache_name'] = $c['cache_name'];
$entryList['cache_list'][] = $e;
}
foreach ($c['deleted_list'] as $e) {
$e['cache_name'] = $c['cache_name'];
$entryList['deleted_list'][] = $e;
}
}
}
return $entryList;
}
// }}}
if (!extension_loaded('XCache')) {
header("Location: ../diagnosis");
exit;
}
xcache_count(XC_TYPE_PHP); // trigger auth
xcache_admin_namespace();
$doTypes = array(
'' => _T('Summary'),
'listphp' => _T('List PHP'),
'listvar' => _T('List Var Data'),
);
function processPOST() // {{{
{
if (isset($_POST['remove']) && is_array($_POST['remove'])) {
foreach ($_POST['remove'] as $name) {
if (is_string($name)) {
xcache_unset($name);
}
}
}
$type = isset($_POST['type']) ? $_POST['type'] : null;
if ($type != XC_TYPE_PHP && $type != XC_TYPE_VAR) {
$type = null;
}
if (isset($type)) {
$cacheid = (int) (isset($_POST['cacheid']) ? $_POST['cacheid'] : 0);
if (isset($_POST['clearcache'])) {
xcache_clear_cache($type, $cacheid);
}
if (isset($_POST['enable'])) {
xcache_enable_cache($type, $cacheid);
}
if (isset($_POST['disable'])) {
xcache_enable_cache($type, $cacheid, false);
}
}
if (isset($_POST['coredump'])) {
xcache_coredump();
}
}
// }}}
processPOST();
if (!isset($_GET['do'])) {
$_GET['do'] = '';
}
switch ($_GET['do']) {
case 'listphp':
case 'listvar':
include "./listentries.tpl.php";
break;
default:
include "./summary.tpl.php";
break;
}
?>