toolkit/components/url-classifier/nsUrlClassifierPrefixSet.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     1 //* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     2 /* vim: set ts=2 et sw=2 tw=80: */
     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 nsUrlClassifierPrefixSet_h_
     8 #define nsUrlClassifierPrefixSet_h_
    10 #include "nsISupportsUtils.h"
    11 #include "nsID.h"
    12 #include "nsIFile.h"
    13 #include "nsIMemoryReporter.h"
    14 #include "nsIMutableArray.h"
    15 #include "nsIUrlClassifierPrefixSet.h"
    16 #include "nsTArray.h"
    17 #include "nsToolkitCompsCID.h"
    18 #include "mozilla/MemoryReporting.h"
    19 #include "mozilla/Mutex.h"
    20 #include "mozilla/CondVar.h"
    21 #include "mozilla/FileUtils.h"
    23 class nsUrlClassifierPrefixSet
    24   : public nsIUrlClassifierPrefixSet
    25   , public nsIMemoryReporter
    26 {
    27 public:
    28   nsUrlClassifierPrefixSet();
    29   virtual ~nsUrlClassifierPrefixSet();
    31   NS_IMETHOD Init(const nsACString& aName);
    32   NS_IMETHOD SetPrefixes(const uint32_t* aArray, uint32_t aLength);
    33   NS_IMETHOD GetPrefixes(uint32_t* aCount, uint32_t** aPrefixes);
    34   NS_IMETHOD Contains(uint32_t aPrefix, bool* aFound);
    35   NS_IMETHOD IsEmpty(bool* aEmpty);
    36   NS_IMETHOD LoadFromFile(nsIFile* aFile);
    37   NS_IMETHOD StoreToFile(nsIFile* aFile);
    39   NS_DECL_THREADSAFE_ISUPPORTS
    40   NS_DECL_NSIMEMORYREPORTER
    42   // Return the estimated size of the set on disk and in memory, in bytes.
    43   size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf);
    45 protected:
    46   static const uint32_t DELTAS_LIMIT = 100;
    47   static const uint32_t MAX_INDEX_DIFF = (1 << 16);
    48   static const uint32_t PREFIXSET_VERSION_MAGIC = 1;
    50   nsresult MakePrefixSet(const uint32_t* aArray, uint32_t aLength);
    51   uint32_t BinSearch(uint32_t start, uint32_t end, uint32_t target);
    52   nsresult LoadFromFd(mozilla::AutoFDClose& fileFd);
    53   nsresult StoreToFd(mozilla::AutoFDClose& fileFd);
    55   // boolean indicating whether |setPrefixes| has been
    56   // called with a non-empty array.
    57   bool mHasPrefixes;
    58   // the prefix for each index.
    59   FallibleTArray<uint32_t> mIndexPrefixes;
    60   // the value corresponds to the beginning of the run
    61   // (an index in |_deltas|) for the index
    62   FallibleTArray<uint32_t> mIndexStarts;
    63   // array containing deltas from indices.
    64   FallibleTArray<uint16_t> mDeltas;
    66   nsCString mMemoryReportPath;
    67 };
    69 #endif

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