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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/localstorage/LSWriteOptimizer.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/localstorage/LSWriteOptimizer.cpp')
-rw-r--r-- | dom/localstorage/LSWriteOptimizer.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/dom/localstorage/LSWriteOptimizer.cpp b/dom/localstorage/LSWriteOptimizer.cpp new file mode 100644 index 0000000000..0928dca35e --- /dev/null +++ b/dom/localstorage/LSWriteOptimizer.cpp @@ -0,0 +1,72 @@ +/* -*- 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/. */ + +#include "LSWriteOptimizer.h" + +#include <new> +#include "nsBaseHashtable.h" +#include "nsTArray.h" + +namespace mozilla::dom { + +class LSWriteOptimizerBase::WriteInfoComparator { + public: + bool Equals(const WriteInfo* a, const WriteInfo* b) const { + MOZ_ASSERT(a && b); + return a->SerialNumber() == b->SerialNumber(); + } + + bool LessThan(const WriteInfo* a, const WriteInfo* b) const { + MOZ_ASSERT(a && b); + return a->SerialNumber() < b->SerialNumber(); + } +}; + +void LSWriteOptimizerBase::DeleteItem(const nsAString& aKey, int64_t aDelta) { + AssertIsOnOwningThread(); + + mWriteInfos.WithEntryHandle(aKey, [&](auto&& entry) { + if (entry && entry.Data()->GetType() == WriteInfo::InsertItem) { + entry.Remove(); + } else { + entry.InsertOrUpdate( + MakeUnique<DeleteItemInfo>(NextSerialNumber(), aKey)); + } + }); + + mTotalDelta += aDelta; +} + +void LSWriteOptimizerBase::Truncate(int64_t aDelta) { + AssertIsOnOwningThread(); + + mWriteInfos.Clear(); + + if (!mTruncateInfo) { + mTruncateInfo = MakeUnique<TruncateInfo>(NextSerialNumber()); + } + + mTotalDelta += aDelta; +} + +void LSWriteOptimizerBase::GetSortedWriteInfos( + nsTArray<NotNull<WriteInfo*>>& aWriteInfos) { + AssertIsOnOwningThread(); + + if (mTruncateInfo) { + aWriteInfos.InsertElementSorted(WrapNotNullUnchecked(mTruncateInfo.get()), + WriteInfoComparator()); + } + + for (const auto& entry : mWriteInfos) { + WriteInfo* writeInfo = entry.GetWeak(); + + aWriteInfos.InsertElementSorted(WrapNotNull(writeInfo), + WriteInfoComparator()); + } +} + +} // namespace mozilla::dom |