/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Initial Developer of the Original Code is
 *   Mozilla Foundation
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Benoit Girard <bgirard@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

[scriptable, uuid(e388fded-1321-41af-a988-861a2bc5cfc3)]
interface nsIProfiler : nsISupports
{
  void StartProfiler(in PRUint32 aInterval, in PRUint32 aEntries,
                      [array, size_is(aFeatureCount)] in string aFeatures,
                      in PRUint32 aFeatureCount);
  void StopProfiler();
  string GetProfile();
  [implicit_jscontext]
  jsval getProfileData();
  boolean IsActive();
  void GetResponsivenessTimes(out PRUint32 aCount, [retval, array, size_is(aCount)] out double aResult);
  void GetFeatures(out PRUint32 aCount, [retval, array, size_is(aCount)] out string aFeatures);

  /**
   * Returns a JSON string of an array of shared library objects.
   * Every object has three properties: start, end, and name.
   * start and end are integers describing the address range that the library
   * occupies in memory. name is the path of the library as a string.
   *
   * On Windows profiling builds, the shared library objects will have
   * additional pdbSignature and pdbAge properties for uniquely identifying
   * shared library versions for stack symbolication.
   */
  AString getSharedLibraryInformation();
};