1 // Copyright 2018 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MOJO_PUBLIC_CPP_BASE_BIG_BUFFER_MOJOM_TRAITS_H_ 6 #define MOJO_PUBLIC_CPP_BASE_BIG_BUFFER_MOJOM_TRAITS_H_ 7 8 #include <cstdint> 9 #include <vector> 10 11 #include "base/component_export.h" 12 #include "base/containers/span.h" 13 #include "base/macros.h" 14 #include "mojo/public/cpp/base/big_buffer.h" 15 #include "mojo/public/cpp/bindings/union_traits.h" 16 #include "mojo/public/cpp/system/buffer.h" 17 #include "mojo/public/mojom/base/big_buffer.mojom-shared.h" 18 19 namespace mojo { 20 21 template <> COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS)22struct COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS) 23 StructTraits<mojo_base::mojom::BigBufferSharedMemoryRegionDataView, 24 mojo_base::internal::BigBufferSharedMemoryRegion> { 25 static uint32_t size( 26 const mojo_base::internal::BigBufferSharedMemoryRegion& region); 27 static mojo::ScopedSharedBufferHandle buffer_handle( 28 mojo_base::internal::BigBufferSharedMemoryRegion& region); 29 30 static bool Read(mojo_base::mojom::BigBufferSharedMemoryRegionDataView data, 31 mojo_base::internal::BigBufferSharedMemoryRegion* out); 32 }; 33 34 template <> COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS)35struct COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS) 36 UnionTraits<mojo_base::mojom::BigBufferDataView, mojo_base::BigBuffer> { 37 static mojo_base::mojom::BigBufferDataView::Tag GetTag( 38 const mojo_base::BigBuffer& buffer); 39 40 static const std::vector<uint8_t>& bytes(const mojo_base::BigBuffer& buffer); 41 static mojo_base::internal::BigBufferSharedMemoryRegion& shared_memory( 42 mojo_base::BigBuffer& buffer); 43 44 static bool Read(mojo_base::mojom::BigBufferDataView data, 45 mojo_base::BigBuffer* out); 46 }; 47 48 template <> COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS)49struct COMPONENT_EXPORT(MOJO_BASE_SHARED_TRAITS) 50 UnionTraits<mojo_base::mojom::BigBufferDataView, mojo_base::BigBufferView> { 51 static mojo_base::mojom::BigBufferDataView::Tag GetTag( 52 const mojo_base::BigBufferView& view); 53 54 static base::span<const uint8_t> bytes(const mojo_base::BigBufferView& view); 55 static mojo_base::internal::BigBufferSharedMemoryRegion& shared_memory( 56 mojo_base::BigBufferView& view); 57 58 static bool Read(mojo_base::mojom::BigBufferDataView data, 59 mojo_base::BigBufferView* out); 60 }; 61 62 } // namespace mojo 63 64 #endif // MOJO_PUBLIC_CPP_BASE_BIG_BUFFER_MOJOM_TRAITS_H_ 65