mirror of
https://github.com/classilla/tenfourfox.git
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99 lines
2.1 KiB
C++
99 lines
2.1 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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#include "ChunkSet.h"
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namespace mozilla {
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namespace safebrowsing {
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nsresult
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ChunkSet::Serialize(nsACString& aChunkStr)
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{
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aChunkStr.Truncate();
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uint32_t i = 0;
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while (i < mChunks.Length()) {
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if (i != 0) {
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aChunkStr.Append(',');
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}
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aChunkStr.AppendInt((int32_t)mChunks[i]);
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uint32_t first = i;
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uint32_t last = first;
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i++;
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while (i < mChunks.Length() && (mChunks[i] == mChunks[i - 1] + 1 || mChunks[i] == mChunks[i - 1])) {
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last = i++;
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}
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if (last != first) {
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aChunkStr.Append('-');
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aChunkStr.AppendInt((int32_t)mChunks[last]);
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}
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}
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return NS_OK;
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}
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nsresult
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ChunkSet::Set(uint32_t aChunk)
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{
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size_t idx = mChunks.BinaryIndexOf(aChunk);
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if (idx == nsTArray<uint32_t>::NoIndex) {
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if (!mChunks.InsertElementSorted(aChunk, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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return NS_OK;
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}
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bool
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ChunkSet::Has(uint32_t aChunk) const
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{
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return mChunks.BinaryIndexOf(aChunk) != nsTArray<uint32_t>::NoIndex;
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}
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nsresult
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ChunkSet::Merge(const ChunkSet& aOther)
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{
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const uint32_t *dupIter = aOther.mChunks.Elements();
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const uint32_t *end = aOther.mChunks.Elements() + aOther.mChunks.Length();
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for (const uint32_t *iter = dupIter; iter != end; iter++) {
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nsresult rv = Set(*iter);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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return NS_OK;
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}
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nsresult
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ChunkSet::Remove(const ChunkSet& aOther)
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{
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uint32_t *addIter = mChunks.Elements();
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uint32_t *end = mChunks.Elements() + mChunks.Length();
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for (uint32_t *iter = addIter; iter != end; iter++) {
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if (!aOther.Has(*iter)) {
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*addIter = *iter;
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addIter++;
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}
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}
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if (!mChunks.SetLength(addIter - mChunks.Elements(), fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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void
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ChunkSet::Clear()
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{
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mChunks.Clear();
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}
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} // namespace safebrowsing
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} // namespace mozilla
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