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b03138cbff
Add support for shared memory creation in WebAssembly memory API. This API is needed for WPT tests that use shared array buffers. Import related WPT tests.
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*
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* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.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 <LibGC/Ptr.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Runtime/ArrayBuffer.h>
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#include <LibWasm/AbstractMachine/AbstractMachine.h>
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#include <LibWeb/Bindings/ExceptionOrUtils.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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namespace Web::WebAssembly {
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struct MemoryDescriptor {
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u32 initial { 0 };
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Optional<u32> maximum;
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Optional<bool> shared;
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};
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class Memory : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(Memory, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(Memory);
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enum class Shared {
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No,
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Yes,
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};
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public:
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static WebIDL::ExceptionOr<GC::Ref<Memory>> construct_impl(JS::Realm&, MemoryDescriptor& descriptor);
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WebIDL::ExceptionOr<u32> grow(u32 delta);
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WebIDL::ExceptionOr<GC::Ref<JS::ArrayBuffer>> buffer() const;
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Wasm::MemoryAddress address() const { return m_address; }
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private:
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Memory(JS::Realm&, Wasm::MemoryAddress, Shared shared);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Visitor&) override;
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WebIDL::ExceptionOr<void> reset_the_memory_buffer();
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static WebIDL::ExceptionOr<GC::Ref<JS::ArrayBuffer>> create_a_fixed_length_memory_buffer(JS::VM&, JS::Realm&, Wasm::MemoryAddress, Shared shared);
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Wasm::MemoryAddress m_address;
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Shared m_shared { Shared::No };
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mutable GC::Ptr<JS::ArrayBuffer> m_buffer;
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};
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}
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