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42 lines
1.9 KiB
42 lines
1.9 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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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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*/
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#ifndef ANDROID_DETACHED_BUFFER_HUB_HANDLE_H
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#define ANDROID_DETACHED_BUFFER_HUB_HANDLE_H
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#include <pdx/channel_handle.h>
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#include <memory>
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namespace android {
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// A wrapper that holds a pdx::LocalChannelHandle object. From the handle, a BufferHub buffer can be
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// created. Current implementation assumes that the underlying transport is using libpdx (thus
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// holding a pdx::LocalChannelHandle object), but future implementation can change it to a Binder
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// backend if ever needed.
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class DetachedBufferHandle {
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public:
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static std::unique_ptr<DetachedBufferHandle> Create(pdx::LocalChannelHandle handle) {
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return std::unique_ptr<DetachedBufferHandle>(new DetachedBufferHandle(std::move(handle)));
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}
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// Accessors to get or take the internal pdx::LocalChannelHandle.
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pdx::LocalChannelHandle& handle() { return mHandle; }
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const pdx::LocalChannelHandle& handle() const { return mHandle; }
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// Returns whether the DetachedBufferHandle holds a BufferHub channel.
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bool isValid() const { return mHandle.valid(); }
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private:
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// Constructs a DetachedBufferHandle from a pdx::LocalChannelHandle.
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explicit DetachedBufferHandle(pdx::LocalChannelHandle handle) : mHandle(std::move(handle)) {}
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pdx::LocalChannelHandle mHandle;
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};
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} // namespace android
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#endif // ANDROID_DETACHED_BUFFER_HUB_HANDLE_H
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