mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-11-12 06:08:24 +02:00
35869db574
Backed out changeset 0c95d5dec6d9 (bug 1305801) Backed out changeset bca0e706dbc5 (bug 1305801) Backed out changeset def8da367beb (bug 1305801) Backed out changeset 56ceae52d847 (bug 1305801) Backed out changeset 14457cc4c325 (bug 1305801)
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 et sw=2 tw=80: */
|
|
/* 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 nsUrlClassifierPrefixSet_h_
|
|
#define nsUrlClassifierPrefixSet_h_
|
|
|
|
#include "nsISupportsUtils.h"
|
|
#include "nsID.h"
|
|
#include "nsIFile.h"
|
|
#include "nsIMemoryReporter.h"
|
|
#include "nsIMutableArray.h"
|
|
#include "nsIUrlClassifierPrefixSet.h"
|
|
#include "nsTArray.h"
|
|
#include "nsToolkitCompsCID.h"
|
|
#include "mozilla/FileUtils.h"
|
|
#include "mozilla/MemoryReporting.h"
|
|
#include "mozilla/Mutex.h"
|
|
|
|
class nsUrlClassifierPrefixSet final
|
|
: public nsIUrlClassifierPrefixSet
|
|
, public nsIMemoryReporter
|
|
{
|
|
public:
|
|
nsUrlClassifierPrefixSet();
|
|
|
|
NS_IMETHOD Init(const nsACString& aName) override;
|
|
NS_IMETHOD SetPrefixes(const uint32_t* aArray, uint32_t aLength) override;
|
|
NS_IMETHOD GetPrefixes(uint32_t* aCount, uint32_t** aPrefixes) override;
|
|
NS_IMETHOD Contains(uint32_t aPrefix, bool* aFound) override;
|
|
NS_IMETHOD IsEmpty(bool* aEmpty) override;
|
|
NS_IMETHOD LoadFromFile(nsIFile* aFile) override;
|
|
NS_IMETHOD StoreToFile(nsIFile* aFile) override;
|
|
|
|
nsresult GetPrefixesNative(FallibleTArray<uint32_t>& outArray);
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf);
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIMEMORYREPORTER
|
|
|
|
private:
|
|
virtual ~nsUrlClassifierPrefixSet();
|
|
|
|
static const uint32_t MAX_BUFFER_SIZE = 64 * 1024;
|
|
static const uint32_t DELTAS_LIMIT = 120;
|
|
static const uint32_t MAX_INDEX_DIFF = (1 << 16);
|
|
static const uint32_t PREFIXSET_VERSION_MAGIC = 1;
|
|
|
|
nsresult MakePrefixSet(const uint32_t* aArray, uint32_t aLength);
|
|
uint32_t BinSearch(uint32_t start, uint32_t end, uint32_t target);
|
|
|
|
// Lock to prevent races between the url-classifier thread (which does most
|
|
// of the operations) and the main thread (which does memory reporting).
|
|
// It should be held for all operations between Init() and destruction that
|
|
// touch this class's data members.
|
|
mozilla::Mutex mLock;
|
|
// list of fully stored prefixes, that also form the
|
|
// start of a run of deltas in mIndexDeltas.
|
|
nsTArray<uint32_t> mIndexPrefixes;
|
|
// array containing arrays of deltas from indices.
|
|
// Index to the place that matches the closest lower
|
|
// prefix from mIndexPrefix. Then every "delta" corresponds
|
|
// to a prefix in the PrefixSet.
|
|
nsTArray<nsTArray<uint16_t> > mIndexDeltas;
|
|
// how many prefixes we have.
|
|
uint32_t mTotalPrefixes;
|
|
|
|
nsCString mMemoryReportPath;
|
|
};
|
|
|
|
#endif
|