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38a82a1907
* Core: stream buffer * stream buffer: API and usage * stream buffer: documentation * stream buffer: more documentation * Furi: fix spelling Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/**
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* @file buffer_stream.h
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*
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* This file implements the concept of a buffer stream.
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* Data is written to the buffer until the buffer is full.
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* Then the buffer pointer is written to the stream, and the new write buffer is taken from the buffer pool.
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* After the buffer has been read by the receiving thread, it is sent to the free buffer pool.
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*
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* This will speed up sending large chunks of data between threads, compared to using a stream directly.
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*/
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#pragma once
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#include <furi.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Buffer Buffer;
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/**
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* @brief Get buffer data pointer
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* @param buffer
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* @return uint8_t*
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*/
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uint8_t* buffer_get_data(Buffer* buffer);
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/**
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* @brief Get buffer size
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* @param buffer
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* @return size_t
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*/
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size_t buffer_get_size(Buffer* buffer);
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/**
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* @brief Reset buffer and send to free buffer pool
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* @param buffer
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*/
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void buffer_reset(Buffer* buffer);
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typedef struct BufferStream BufferStream;
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/**
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* @brief Allocate a new BufferStream instance
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* @param buffer_size
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* @param buffers_count
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* @return BufferStream*
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*/
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BufferStream* buffer_stream_alloc(size_t buffer_size, size_t buffers_count);
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/**
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* @brief Free a BufferStream instance
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* @param buffer_stream
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*/
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void buffer_stream_free(BufferStream* buffer_stream);
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/**
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* @brief Write data to buffer stream, from ISR context
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* Data will be written to the buffer until the buffer is full, and only then will the buffer be sent.
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* @param buffer_stream
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* @param data
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* @param size
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* @return bool
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*/
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bool buffer_stream_send_from_isr(BufferStream* buffer_stream, const uint8_t* data, size_t size);
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/**
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* @brief Receive buffer from stream
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* @param buffer_stream
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* @param timeout
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* @return Buffer*
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*/
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Buffer* buffer_stream_receive(BufferStream* buffer_stream, TickType_t timeout);
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/**
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* @brief Get stream overrun count
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* @param buffer_stream
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* @return size_t
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*/
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size_t buffer_stream_get_overrun_count(BufferStream* buffer_stream);
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/**
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* @brief Reset stream and buffer pool
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* @param buffer_stream
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*/
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void buffer_stream_reset(BufferStream* buffer_stream);
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#ifdef __cplusplus
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}
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#endif
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