The Tor Browser: content/media/webaudio/PeriodicWave.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

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

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef PeriodicWave_h_

     8 #define PeriodicWave_h_

    10 #include "nsWrapperCache.h"

    11 #include "nsCycleCollectionParticipant.h"

    12 #include "mozilla/Attributes.h"

    13 #include "AudioContext.h"

    14 #include "AudioNodeEngine.h"

    15 #include "nsAutoPtr.h"

    17 namespace mozilla {

    19 namespace dom {

    21 class PeriodicWave MOZ_FINAL : public nsWrapperCache

    22 {

    23 public:

    24   PeriodicWave(AudioContext* aContext,

    25                const float* aRealData,

    26                const float* aImagData,

    27                const uint32_t aLength,

    28                ErrorResult& aRv);

    30   NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(PeriodicWave)

    31   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(PeriodicWave)

    33   AudioContext* GetParentObject() const

    34   {

    35     return mContext;

    36   }

    38   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;

    40   uint32_t DataLength() const

    41   {

    42     return mLength;

    43   }

    45   ThreadSharedFloatArrayBufferList* GetThreadSharedBuffer() const

    46   {

    47     return mCoefficients;

    48   }

    50   size_t SizeOfExcludingThisIfNotShared(MallocSizeOf aMallocSizeOf) const;

    52 private:

    53   nsRefPtr<AudioContext> mContext;

    54   nsRefPtr<ThreadSharedFloatArrayBufferList> mCoefficients;

    55   uint32_t mLength;

    56 };

    58 }

    59 }

    61 #endif

The Tor Browser / file revision

content/media/webaudio/PeriodicWave.h@97036ab72558

content/media/webaudio/PeriodicWave.h