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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 ChunkSet_h__
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#define ChunkSet_h__
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#include "Entries.h"
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#include "nsString.h"
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#include "nsTArray.h"
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namespace mozilla {
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namespace safebrowsing {
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/**
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* Store the chunk numbers as an array of uint32_t. We need chunk numbers in
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* order to ask for incremental updates from the server.
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* XXX: We should optimize this further to compress the many consecutive
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* numbers.
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*/
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class ChunkSet {
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public:
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ChunkSet() {}
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~ChunkSet() {}
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nsresult Serialize(nsACString& aStr);
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nsresult Set(uint32_t aChunk);
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bool Has(uint32_t chunk) const;
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nsresult Merge(const ChunkSet& aOther);
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uint32_t Length() const { return mChunks.Length(); }
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nsresult Remove(const ChunkSet& aOther);
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void Clear();
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nsresult Write(nsIOutputStream* aOut) {
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return WriteTArray(aOut, mChunks);
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}
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nsresult Read(nsIInputStream* aIn, uint32_t aNumElements) {
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return ReadTArray(aIn, &mChunks, aNumElements);
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}
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private:
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FallibleTArray<uint32_t> mChunks;
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};
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} // namespace safebrowsing
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} // namespace mozilla
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#endif
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