ProcessHangMonitor.h

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_ProcessHangMonitor_h

#define mozilla_ProcessHangMonitor_h

#include "mozilla/AlreadyAddRefed.h"

#include "mozilla/Atomics.h"

#include "nsCOMPtr.h"

#include "nsIObserver.h"

#include "nsIRemoteTab.h"

#include "nsIThread.h"

#include "nsStringFwd.h"

class nsIRunnable;

class nsIBrowserChild;

class nsIThread;

namespace mozilla {

namespace dom {

class ContentParent;

class BrowserParent;

struct CancelContentJSOptions;

}  // namespace dom

class PProcessHangMonitorParent;

class ProcessHangMonitor final : public nsIObserver {

 private:

  ProcessHangMonitor();

  virtual ~ProcessHangMonitor();

 public:

  static ProcessHangMonitor* Get() { return sInstance; }

  static ProcessHangMonitor* GetOrCreate();

  NS_DECL_ISUPPORTS

  NS_DECL_NSIOBSERVER

  static already_AddRefed<PProcessHangMonitorParent> AddProcess(

      dom::ContentParent* aContentParent);

  static void RemoveProcess(PProcessHangMonitorParent* aParent);

  static void ClearHang();

  static void PaintWhileInterruptingJS(PProcessHangMonitorParent* aParent,

                                       dom::BrowserParent* aTab);

  static void UnloadLayersWhileInterruptingJS(

      PProcessHangMonitorParent* aParent, dom::BrowserParent* aTab);

  static void ClearPaintWhileInterruptingJS();

  static void MaybeStartPaintWhileInterruptingJS();

  static void CancelContentJSExecutionIfRunning(

      PProcessHangMonitorParent* aParent, dom::BrowserParent* aTab,

      nsIRemoteTab::NavigationType aNavigationType,

      const dom::CancelContentJSOptions& aCancelContentJSOptions);

  static void SetMainThreadQoSPriority(PProcessHangMonitorParent* aParent,

                                       nsIThread::QoSPriority aQoSPriority);

  enum SlowScriptAction {

    Continue,

    Terminate,

    StartDebugger,

};

  SlowScriptAction NotifySlowScript(nsIBrowserChild* aBrowserChild,

                                    const char* aFileName,

                                    const nsString& aAddonId,

                                    const double aDuration);

  void NotifyPluginHang(uint32_t aPluginId);

  bool IsDebuggerStartupComplete();

  void InitiateCPOWTimeout();

  bool ShouldTimeOutCPOWs();

  nsresult Dispatch(already_AddRefed<nsIRunnable> aRunnable);

  bool IsOnThread();

 private:

  static ProcessHangMonitor* sInstance;

  Atomic<bool> mCPOWTimeout;

  nsCOMPtr<nsIThread> mThread;

};

}  // namespace mozilla

#endif  // mozilla_ProcessHangMonitor_h