mirror of https://github.com/ArduPilot/ardupilot
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-
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/// @file AP_Buffer.h
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/// @brief fifo buffer template class
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#ifndef __AP_BUFFER_H__
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#define __AP_BUFFER_H__
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#include <stdint.h>
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/// @class AP_Buffer
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template <class T, uint8_t SIZE>
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class AP_Buffer {
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public:
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// Constructor
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AP_Buffer();
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// clear - removes all points from the curve
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void clear();
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// add - adds an item to the buffer. returns TRUE if successfully added
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void add( T item );
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// get - returns the next value in the buffer
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T get();
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// peek - check what the next value in the buffer is but don't pull it off
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T peek(uint8_t position = 0) const;
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// num_values - returns number of values in the buffer
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uint8_t num_items() const { return _num_items; }
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private:
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uint8_t _num_items; // number of items in the buffer
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uint8_t _head; // first item in the buffer (will be returned with the next get call)
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T _buff[SIZE]; // x values of each point on the curve
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};
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// Typedef for convenience - add more as needed
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typedef AP_Buffer<float,5> AP_BufferFloat_Size5;
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typedef AP_Buffer<float,15> AP_BufferFloat_Size15;
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#endif // __AP_BUFFER_H__
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