The Tor Browser: xpcom/ds/nsPersistentProperties.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 /* This Source Code Form is subject to the terms of the Mozilla Public

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

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

     6 #ifndef nsPersistentProperties_h___

     7 #define nsPersistentProperties_h___

     9 #include "nsIPersistentProperties2.h"

    10 #include "pldhash.h"

    11 #include "plarena.h"

    12 #include "nsString.h"

    13 #include "nsCOMPtr.h"

    14 #include "mozilla/Attributes.h"

    16 class nsIUnicharInputStream;

    18 class nsPersistentProperties MOZ_FINAL : public nsIPersistentProperties

    19 {

    20 public:

    21   nsPersistentProperties();

    23   NS_DECL_THREADSAFE_ISUPPORTS

    24   NS_DECL_NSIPROPERTIES

    25   NS_DECL_NSIPERSISTENTPROPERTIES

    27   static nsresult

    28   Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);

    30 private:

    31   ~nsPersistentProperties();

    33 protected:

    34   nsCOMPtr<nsIUnicharInputStream> mIn;

    36   nsIPersistentProperties* mSubclass;

    37   struct PLDHashTable mTable;

    38   PLArenaPool mArena;

    39 };

    41 class nsPropertyElement MOZ_FINAL : public nsIPropertyElement

    42 {

    43 public:

    44   nsPropertyElement()

    45   {

    46   }

    48   nsPropertyElement(const nsACString& aKey, const nsAString& aValue)

    49     : mKey(aKey), mValue(aValue)

    50   {

    51   }

    53   NS_DECL_ISUPPORTS

    54   NS_DECL_NSIPROPERTYELEMENT

    56   static NS_METHOD

    57   Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);

    59 private:

    60   ~nsPropertyElement() {}

    62 protected:

    63   nsCString mKey;

    64   nsString mValue;

    65 };

    67 #endif /* nsPersistentProperties_h___ */

The Tor Browser / file revision

xpcom/ds/nsPersistentProperties.h@97036ab72558

xpcom/ds/nsPersistentProperties.h