/* 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 PSMRunnable_h

#define PSMRunnable_h

#include "mozilla/Monitor.h"

#include "nsThreadUtils.h"

#include "nsIObserver.h"

#include "nsProxyRelease.h"

namespace mozilla { namespace psm {

// Wait for the event to run on the target thread without spinning the event

// loop on the calling thread. (Dispatching events to a thread using

// NS_DISPATCH_SYNC would cause the event loop on the calling thread to spin.)

class SyncRunnableBase : public Runnable

{

public:

  NS_DECL_NSIRUNNABLE

  nsresult DispatchToMainThreadAndWait();

protected:

  SyncRunnableBase();

  virtual void RunOnTargetThread() = 0;

private:

  mozilla::Monitor monitor;

};

class NotifyObserverRunnable : public Runnable

{

public:

  NotifyObserverRunnable(nsIObserver * observer,

                         const char * topicStringLiteral)

    : Runnable("psm::NotifyObserverRunnable"),

      mObserver(new nsMainThreadPtrHolder<nsIObserver>(

        "psm::NotifyObserverRunnable::mObserver", observer)),

      mTopic(topicStringLiteral) {

  }

  NS_DECL_NSIRUNNABLE

private:

  nsMainThreadPtrHandle<nsIObserver> mObserver;

  const char * const mTopic;

};

} } // namespace mozilla::psm

#endif