1 /**
2  * Copyright (C) 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 /*------------------------------------------------------------------------------
17  *
18  *  Structure required to implement a circular buffer.
19  *
20  *----------------------------------------------------------------------------*/
21 
22 #ifndef CBSTRUCT_H
23 #define CBSTRUCT_H
24 #ifdef _GCC
25 #pragma GCC visibility push(hidden)
26 #endif
27 
28 typedef struct circularBuffer_t {
29   /* Buffer storage */
30   int32_t buffer[48];
31   /* Pointer to current buffer location */
32   uint32_t pointer;
33   /* Modulo length of circular buffer */
34   uint32_t modulo;
35 } circularBuffer;
36 
37 #ifdef _GCC
38 #pragma GCC visibility pop
39 #endif
40 #endif  // CBSTRUCT_H