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fc95c27933
Bug: dawn:549 Change-Id: I84eaabdb2b72e73e37cd840632a4180acf2253e9 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92680 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Shrek Shao <shrekshao@google.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// Copyright 2022 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_DAWN_NATIVE_BLOB_H_
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#define SRC_DAWN_NATIVE_BLOB_H_
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#include <functional>
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#include <memory>
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namespace dawn::native {
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// Blob represents a block of bytes. It may be constructed from
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// various other container types and uses type erasure to take
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// ownership of the container and release its memory on destruction.
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class Blob {
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public:
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// This function is used to create Blob with actual data.
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// Make sure the creation and deleter handles the data ownership and lifetime correctly.
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static Blob UnsafeCreateWithDeleter(uint8_t* data, size_t size, std::function<void()> deleter);
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Blob();
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~Blob();
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Blob(const Blob&) = delete;
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Blob& operator=(const Blob&) = delete;
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Blob(Blob&&);
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Blob& operator=(Blob&&);
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bool Empty() const;
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const uint8_t* Data() const;
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uint8_t* Data();
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size_t Size() const;
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private:
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// The constructor should be responsible to take ownership of |data| and releases ownership by
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// calling |deleter|. The deleter function is called at ~Blob() and during std::move.
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explicit Blob(uint8_t* data, size_t size, std::function<void()> deleter);
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uint8_t* mData;
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size_t mSize;
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std::function<void()> mDeleter;
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};
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Blob CreateBlob(size_t size);
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} // namespace dawn::native
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#endif // SRC_DAWN_NATIVE_BLOB_H_
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