52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
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/*
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* MIT License
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* Copyright (c) 2021 _VIFEXTech
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __PING_PONG_BUFFER_H
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#define __PING_PONG_BUFFER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdbool.h>
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typedef struct
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{
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void* buffer[2];
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volatile uint8_t writeIndex;
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volatile uint8_t readIndex;
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volatile uint8_t readAvaliable[2];
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} PingPongBuffer_t;
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void PingPongBuffer_Init(PingPongBuffer_t* ppbuf, void* buf0, void* buf1);
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bool PingPongBuffer_GetReadBuf(PingPongBuffer_t* ppbuf, void** pReadBuf);
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void PingPongBuffer_SetReadDone(PingPongBuffer_t* ppbuf);
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void PingPongBuffer_GetWriteBuf(PingPongBuffer_t* ppbuf, void** pWriteBuf);
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void PingPongBuffer_SetWriteDone(PingPongBuffer_t* ppbuf);
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#ifdef __cplusplus
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}
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#endif
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#endif
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