xpcom/threads/HangMonitor.h
author Alfredo Yang <ayang@mozilla.com>
Tue, 05 Nov 2013 14:08:45 +0800
changeset 153542 6d33ac3a2b142cd20bdf0637a5aa52344924d1cc
parent 94825 831ff2eb9a281b918276f4998b43dfec141f0b62
child 185145 747dc2140460792408f3a799fd00fd5b1a4e6741
permissions -rw-r--r--
Bug 853356 - Part3 Pass a string array instead of a single string to support multiple permissions request. r=khuey

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_HangMonitor_h
#define mozilla_HangMonitor_h

namespace mozilla { namespace HangMonitor {

/**
 * Signifies the type of activity in question
*/
enum ActivityType {
  /* There is activity and it is known to be UI related activity. */
  kUIActivity,

  /* There is non UI activity and no UI activity is pending */
  kActivityNoUIAVail,

  /* There is non UI activity and UI activity is known to be pending */
  kActivityUIAVail,

  /* There is non UI activity and UI activity pending is unknown */
  kGeneralActivity
};

/**
 * Start monitoring hangs. Should be called by the XPCOM startup process only.
 */
void Startup();

/**
 * Stop monitoring hangs and join the thread.
 */
void Shutdown();

/**
 * Notify the hang monitor of activity which will reset its internal timer.
 * 
 * @param activityType The type of activity being reported.
 * @see ActivityType
 */
void NotifyActivity(ActivityType activityType = kGeneralActivity);

/*
 * Notify the hang monitor that the browser is now idle and no detection should
 * be done.
 */
void Suspend();

} } // namespace mozilla::HangMonitor

#endif // mozilla_HangMonitor_h