function xhprof_init_metrics in XHProf 6

Same name and namespace in other branches

1. 7 xhprof.inc \xhprof_init_metrics()

Initialize the metrics we'll display based on the information in the raw data.

@author Kannan

1 call to xhprof_init_metrics()

xhprof_display_run in ./xhprof.module

Display XHProf run report.

File

./xhprof.inc, line 405

Code

function xhprof_init_metrics($xhprof_data, $rep_symbol, $sort, $diff_report = FALSE) {
  global $stats;
  global $pc_stats;
  global $metrics;
  global $diff_mode;
  global $sort_col;
  global $display_calls;
  $diff_mode = $diff_report;
  if (!empty($sort)) {
    if (array_key_exists($sort, xhprof_sortable_columns())) {
      $sort_col = $sort;
    }
    else {
      print "Invalid Sort Key {$sort} specified in URL";
    }
  }

  // For C++ profiler runs, walltime attribute isn't present.
  // In that case, use "samples" as the default sort column.
  if (!isset($xhprof_data["main()"]["wt"])) {
    if ($sort_col == "wt") {
      $sort_col = "samples";
    }

    // C++ profiler data doesn't have call counts.
    // ideally we should check to see if "ct" metric
    // is present for "main()". But currently "ct"
    // metric is artificially set to 1. So, relying
    // on absence of "wt" metric instead.
    $display_calls = FALSE;
  }
  else {
    $display_calls = TRUE;
  }

  // parent/child report doesn't support exclusive times yet.
  // So, change sort hyperlinks to closest fit.
  if (!empty($rep_symbol)) {
    $sort_col = str_replace("excl_", "", $sort_col);
  }
  if ($display_calls) {
    $stats = array(
      "fn",
      "ct",
      "Calls%",
    );
  }
  else {
    $stats = array(
      "fn",
    );
  }
  $pc_stats = $stats;
  $possible_metrics = xhprof_get_possible_metrics($xhprof_data);
  foreach ($possible_metrics as $metric => $desc) {
    if (isset($xhprof_data["main()"][$metric])) {
      $metrics[] = $metric;

      // flat (top-level reports): we can compute
      // exclusive metrics reports as well.
      $stats[] = $metric;
      $stats[] = "I" . $desc[0] . "%";
      $stats[] = "excl_" . $metric;
      $stats[] = "E" . $desc[0] . "%";

      // parent/child report for a function: we can
      // only breakdown inclusive times correctly.
      $pc_stats[] = $metric;
      $pc_stats[] = "I" . $desc[0] . "%";
    }
  }
}