public function execute($parameters)
{
global $wgOut, $wgUser;
$this->setHeaders();
$this->setup();
if (!function_exists('apc_cache_info')) {
$wgOut->addWikiMsg('viewapc-apc-not-available');
return;
}
if ($this->opts->getValue('image')) {
$wgOut->disable();
header('Content-type: image/png');
echo APCImages::generateImage($this->opts->getValue('image'));
return;
}
if ($this->opts->getValue('mode') !== self::MODE_STATS) {
if (!$wgUser->isAllowed('apc')) {
$wgOut->permissionRequired('apc');
return;
}
}
// clear cache
if ($this->opts->getValue('clearcache')) {
$this->opts->setValue('clearcache', '');
// TODO: reset
if (!$wgUser->isAllowed('apc')) {
$wgOut->permissionRequired('apc');
return;
}
$usermode = $this->opts->getValue('mode') === self::MODE_USER_CACHE;
$mode = $usermode ? 'user' : 'opcode';
apc_clear_cache($mode);
if ($usermode) {
$wgOut->addWikiMsg('viewapc-filecache-cleared');
} else {
$wgOut->addWikiMsg('viewapc-usercache-cleared');
}
}
$delete = $this->opts->getValue('delete');
if ($delete) {
$this->opts->setValue('delete', '');
// TODO: reset
if (!$wgUser->isAllowed('apc')) {
$wgOut->permissionRequired('apc');
return;
}
$result = apc_delete($delete);
if ($result) {
$wgOut->addWikiMsg('viewapc-delete-ok', $delete);
} else {
$wgOut->addWikiMsg('viewapc-delete-failed', $delete);
}
}
$wgOut->addModuleStyles('ext.apc');
$this->getLogo();
$this->mainMenu();
$this->doPage();
}
public static function doFragmentationTable($mem, $title)
{
global $wgLang;
$s = APCUtils::tableHeader(wfMsg('viewapc-memoryfragmentation'), 'mw-apc-img-table');
$s .= Xml::openElement('tr') . Xml::openElement('td');
// 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 (APCImages::graphics_avail()) {
$attribs = array('alt' => '', 'width' => 2 * APCImages::GRAPH_SIZE + 150, 'height' => APCImages::GRAPH_SIZE + 10, 'src' => $title->getLocalURL('image=' . APCImages::IMG_FRAGMENTATION));
$s .= Xml::element('img', $attribs);
}
if ($freeseg > 1) {
$fragPercent = sprintf('%.2f%%', $fragsize / $freetotal * 100);
$s .= wfMsgExt('viewapc-fragmentation-info', 'parse', $wgLang->formatNum($fragPercent, true), $wgLang->formatSize($fragsize), $wgLang->formatSize($freetotal), $wgLang->formatNum($freeseg));
} else {
$s .= wfMsgExt('viewapc-fragmentation-none', 'parse');
}
$s .= Xml::closeElement('td') . Xml::closeElement('tr');
if (isset($mem['adist'])) {
foreach ($mem['adist'] as $i => $v) {
$cur = pow(2, $i);
$nxt = pow(2, $i + 1) - 1;
if ($i == 0) {
$range = "1";
} else {
$range = "{$cur} - {$nxt}";
}
$s .= Xml::tags('tr', null, Xml::tags('th', array('align' => 'right'), $range) . Xml::tags('td', array('align' => 'right'), $v));
}
}
$s .= APCUtils::tableFooter();
return $s;
}