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71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsUrlClassifierPrefixSet_h_
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#define nsUrlClassifierPrefixSet_h_
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#include "nsISupportsUtils.h"
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#include "nsID.h"
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#include "nsIFile.h"
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#include "nsIMemoryReporter.h"
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#include "nsIMutableArray.h"
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#include "nsIUrlClassifierPrefixSet.h"
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#include "nsTArray.h"
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#include "nsToolkitCompsCID.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/CondVar.h"
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#include "mozilla/FileUtils.h"
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class nsUrlClassifierPrefixSet
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: public nsIUrlClassifierPrefixSet
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, public nsIMemoryReporter
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{
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public:
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nsUrlClassifierPrefixSet();
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NS_IMETHOD Init(const nsACString& aName);
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NS_IMETHOD SetPrefixes(const uint32_t* aArray, uint32_t aLength);
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NS_IMETHOD GetPrefixes(uint32_t* aCount, uint32_t** aPrefixes);
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NS_IMETHOD Contains(uint32_t aPrefix, bool* aFound);
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NS_IMETHOD IsEmpty(bool* aEmpty);
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NS_IMETHOD LoadFromFile(nsIFile* aFile);
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NS_IMETHOD StoreToFile(nsIFile* aFile);
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIMEMORYREPORTER
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// Return the estimated size of the set on disk and in memory, in bytes.
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf);
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protected:
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virtual ~nsUrlClassifierPrefixSet();
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static const uint32_t DELTAS_LIMIT = 100;
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static const uint32_t MAX_INDEX_DIFF = (1 << 16);
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static const uint32_t PREFIXSET_VERSION_MAGIC = 1;
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nsresult MakePrefixSet(const uint32_t* aArray, uint32_t aLength);
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uint32_t BinSearch(uint32_t start, uint32_t end, uint32_t target);
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nsresult LoadFromFd(mozilla::AutoFDClose& fileFd);
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nsresult StoreToFd(mozilla::AutoFDClose& fileFd);
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// boolean indicating whether |setPrefixes| has been
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// called with a non-empty array.
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bool mHasPrefixes;
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// the prefix for each index.
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nsTArray<uint32_t> mIndexPrefixes;
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// the value corresponds to the beginning of the run
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// (an index in |_deltas|) for the index
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nsTArray<uint32_t> mIndexStarts;
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// array containing deltas from indices.
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nsTArray<uint16_t> mDeltas;
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nsCString mMemoryReportPath;
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};
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#endif
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