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4ad9543a65
This will allow sharing e.g. document cookie versions between the UI and WebContent processes, and safely accessing those versions. Core::AnonymousBuffer internally creates a minimum buffer of PAGE_SIZE bytes. This is much more than the size of a single version, but this affords us the opportunity to share multiple versions in a single buffer between processes. With a PAGE_SIZE of 4096, we can share up to 512 versions in a single buffer.
26 lines
712 B
C++
26 lines
712 B
C++
/*
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* Copyright (c) 2026, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Optional.h>
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#include <AK/Types.h>
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#include <LibCore/AnonymousBuffer.h>
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namespace Core {
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using SharedVersion = u64;
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using SharedVersionIndex = u32;
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constexpr inline SharedVersion INVALID_SHARED_VERSION = 0;
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constexpr inline SharedVersion INITIAL_SHARED_VERSION = 1;
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[[nodiscard]] AnonymousBuffer create_shared_version_buffer();
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[[nodiscard]] bool initialize_shared_version(AnonymousBuffer&, SharedVersionIndex);
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void increment_shared_version(AnonymousBuffer&, SharedVersionIndex);
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Optional<SharedVersion> get_shared_version(AnonymousBuffer const&, SharedVersionIndex);
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}
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