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<?php
require 'Reader.php';
require 'CallgrindPreprocessor.php';
class FileHandler{
private static $singleton = null;
public static function getInstance(){
if(self::$singleton==null)
self::$singleton = new FileHandler();
return self::$singleton;
}
private function __construct(){
$files = $this->getFiles(Config::$xdebugOutputFormat, Config::$xdebugOutputDir);
$prepFiles = $this->getFiles('/\\'.Config::$preprocessedSuffix.'$/', Config::$storageDir);
foreach($prepFiles as $fileName=>$prepFile){
$fileName = str_replace(Config::$preprocessedSuffix,'',$fileName);
if(!isset($files[$fileName]) || $files[$fileName]['mtime']>$prepFile['mtime'] )
unlink($prepFile['absoluteFilename']);
else
$files[$fileName]['preprocessed'] = true;
}
uasort($files,array($this,'mtimeCmp'));
$this->files = $files;
}
public function getInvokeUrl($file){
# Grab name of invoked file
$fp = fopen($file, 'r');
fgets($fp);
$invokeUrl = trim(substr(fgets($fp), 5));
fclose($fp);
return $invokeUrl;
}
private function getFiles($format, $dir){
$list = preg_grep($format,scandir($dir));
$files = array();
$scriptFilename = $_SERVER['SCRIPT_FILENAME'];
foreach($list as $file){
$absoluteFilename = $dir.$file;
$invokeUrl = $this->getInvokeUrl($absoluteFilename);
$files[$file] = array('absoluteFilename'=>$absoluteFilename, 'mtime'=>filemtime($absoluteFilename), 'preprocessed'=>false, 'invokeUrl'=>$invokeUrl, 'selftrace'=>false);
if($invokeUrl == $scriptFilename)
$files[$file]['selftrace'] = true;
}
return $files;
}
public function getTraceList($selftraces=false){
$result = array();
foreach($this->files as $fileName=>$file){
if(!$file['selftrace'] || $selftraces)
$result[] = array('filename' => $fileName, 'invokeUrl' => str_replace($_SERVER['DOCUMENT_ROOT'].'/', '', $file['invokeUrl']));
}
return $result;
}
public function getTraceReader($file){
$prepFile = Config::$storageDir.$file.Config::$preprocessedSuffix;
try{
$r = new Reader($prepFile);
} catch (Exception $e){
// Preprocessed file does not exist or other error
$cg = new CallgrindPreprocessor(Config::$xdebugOutputDir.$file, $prepFile);
$cg->parse();
$r = new Reader($prepFile);
}
return $r;
}
private function mtimeCmp($a, $b){
if ($a['mtime'] == $b['mtime'])
return 0;
return ($a['mtime'] > $b['mtime']) ? -1 : 1;
}
}
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