XHProfRunsFile.inc in XHProf 6

Definition of XHProfRunsFile.

File

XHProfRunsFile.inc

<?php

/**
 * @file
 * Definition of XHProfRunsFile.
 */

/**
 * XHProfRuns_Default is the default implementation of the
 * iXHProfRuns interface for saving/fetching XHProf runs.
 *
 */
class XHProfRunsFile implements XHProfRunsInterface {
  private $dir = '';
  private $suffix = 'xhprof';
  public function getDir() {
    return $this->dir;
  }
  private function gen_run_id($type) {
    return uniqid();
  }
  private function file_name($run_id, $type) {
    $file = "{$run_id}.{$type}." . $this->suffix;
    if (!empty($this->dir)) {
      $file = $this->dir . "/" . $file;
    }
    return $file;
  }
  public function __construct($dir = NULL) {

    // if user hasn't passed a directory location,
    // we use the xhprof.output_dir ini setting
    // if specified, else we default to the directory
    // in which the error_log file resides.
    if (empty($dir)) {
      $dir = ini_get("xhprof.output_dir");
      if (empty($dir)) {

        // some default that at least works on unix...
        $dir = "/tmp";

        /* @todo - Put this somewhere more sensible.
           watchdog("xhprof", "Warning: Must specify directory location for XHProf runs. " .
                        "Trying {$dir} as default. You can either pass the " .
                        "directory location as an argument to the constructor " .
                        "for XHProfRuns_Default() or set xhprof.output_dir " .
                        "ini param.");
            */
      }
    }
    $this->dir = $dir;
  }
  public function get_run($run_id, $type, &$run_desc) {
    $file_name = $this
      ->file_name($run_id, $type);
    if (!file_exists($file_name)) {
      watchdog("xhprof", "Could not find file %file_name", array(
        '%file_name' => $file_name,
      ));
      $run_desc = "Invalid Run Id = {$run_id}";
      return NULL;
    }
    $contents = file_get_contents($file_name);
    $run_desc = "XHProf Run (Namespace={$type})";
    return unserialize($contents);
  }
  public function save_run($xhprof_data, $type, $run_id = NULL) {

    // Use PHP serialize function to store the XHProf's
    // raw profiler data.
    $xhprof_data = serialize($xhprof_data);
    if ($run_id === NULL) {
      $run_id = $this
        ->gen_run_id($type);
    }
    $file_name = $this
      ->file_name($run_id, $type);
    $file = fopen($file_name, 'w');
    if ($file) {
      fwrite($file, $xhprof_data);
      fclose($file);
    }
    else {
      watchdog("xhprof", "Could not open %file_name.", array(
        '%file_name' => $file_name,
      ));
    }

    // echo "Saved run in {$file_name}.\nRun id = {$run_id}.\n";
    return $run_id;
  }
  public function getRuns($stats, $limit = 50, $skip = 0) {
    $files = $this
      ->scanXHProfDir($this
      ->getDir(), variable_get('site_name', ''));
    foreach ($files as $i => $file) {
      $file['date'] = strtotime($file['date']);
      $files[$i] = $file;
    }
    return $files;
  }
  public function getCount() {
  }
  public function scanXHProfDir($dir, $source = NULL) {
    if (is_dir($dir)) {
      $runs = array();
      foreach (glob("{$dir}/*.{$source}.*") as $file) {
        list($run, $source) = explode('.', basename($file));
        $runs[] = array(
          'run_id' => $run,
          'source' => $source,
          'basename' => htmlentities(basename($file)),
          'date' => date("Y-m-d H:i:s", filemtime($file)),
        );
      }
    }
    return array_reverse($runs);
  }

}

Classes

Name	Description
XHProfRunsFile	XHProfRuns_Default is the default implementation of the iXHProfRuns interface for saving/fetching XHProf runs.