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      1 #pragma once
      2 /*
      3  * Copyright (C) 2018 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 #include "common/vsoc/shm/base.h"
     19 #include "common/vsoc/shm/circqueue.h"
     20 
     21 // Memory layout for region carrying audio data from audio HAL to client.
     22 
     23 namespace vsoc {
     24 namespace layout {
     25 namespace audio_data {
     26 
     27 struct AudioDataLayout : public RegionLayout {
     28     static const char *const region_name;
     29     static constexpr size_t layout_size = 16396;
     30 
     31     // size = 2^14 = 16384, packets are up to 4KB bytes each.
     32     CircularPacketQueue<14, 4096> audio_queue;
     33 };
     34 ASSERT_SHM_COMPATIBLE(AudioDataLayout);
     35 
     36 }  // namespace audio_data
     37 }  // namespace layout
     38 }  // namespace vsoc
     39