1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
//* -*- 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 VariableLengthPrefixSet_h
#define VariableLengthPrefixSet_h
#include "nsISupports.h"
#include "nsIMemoryReporter.h"
#include "Entries.h"
#include "nsTArray.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Mutex.h"
class nsUrlClassifierPrefixSet;
namespace mozilla {
namespace safebrowsing {
class VariableLengthPrefixSet final : public nsIMemoryReporter {
public:
VariableLengthPrefixSet();
nsresult Init(const nsACString& aName);
nsresult SetPrefixes(mozilla::safebrowsing::PrefixStringMap& aPrefixMap);
nsresult GetPrefixes(mozilla::safebrowsing::PrefixStringMap& aPrefixMap);
nsresult GetFixedLengthPrefixes(FallibleTArray<uint32_t>& aPrefixes);
nsresult Matches(const nsACString& aFullHash, uint32_t* aLength) const;
nsresult IsEmpty(bool* aEmpty) const;
nsresult WritePrefixes(nsCOMPtr<nsIOutputStream>& out) const;
nsresult LoadPrefixes(nsCOMPtr<nsIInputStream>& in);
uint32_t CalculatePreallocateSize() const;
size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIMEMORYREPORTER
private:
virtual ~VariableLengthPrefixSet();
static const uint32_t PREFIXSET_VERSION_MAGIC = 1;
bool BinarySearch(const nsACString& aFullHash, const nsACString& aPrefixes,
uint32_t aPrefixSize) const;
// 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.
mutable mozilla::Mutex mLock;
const RefPtr<nsUrlClassifierPrefixSet> mFixedPrefixSet;
mozilla::safebrowsing::PrefixStringMap mVLPrefixSet;
nsCString mName;
nsCString mMemoryReportPath;
};
} // namespace safebrowsing
} // namespace mozilla
#endif
|
