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36 lines
1.2 KiB
36 lines
1.2 KiB
/*
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* Copyright (C) 2016 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_HARDWARE_MAPPING_H
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#define ANDROID_HARDWARE_MAPPING_H
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#include <android/hidl/memory/1.0/IMemory.h>
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#include <hidl/HidlSupport.h>
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namespace android {
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namespace hardware {
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/**
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* Returns the IMemory instance corresponding to a hidl_memory object.
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* If the shared memory cannot be fetched, this returns nullptr.
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*
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* Note, this method call is relatively expensive and does not cache conversions.
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* It should only be done when initializing a buffer and not on every buffer read.
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*/
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sp<android::hidl::memory::V1_0::IMemory> mapMemory(const hidl_memory &memory);
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} // namespace hardware
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} // namespace android
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#endif
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