Library for computations on stream of data. More...

Data Structures
struct	twr_data_stream_buffer_t
	Buffer for data stream. More...

Macros
#define	TWR_DATA_STREAM_FLOAT_BUFFER(NAME, NUMBER_OF_SAMPLES)
	Macro for float data stream buffer declaration. More...

#define	TWR_DATA_STREAM_INT_BUFFER(NAME, NUMBER_OF_SAMPLES)
	Macro for int data stream buffer declaration. More...

#define	TWR_DATA_STREAM_FLOAT_ARRAY(NAME, COUNT, NUMBER_OF_SAMPLES)
	Macro for float data stream array declaration. More...

#define	TWR_DATA_STREAM_FLOAT_ARRAY_INIT(NAME, COUNT, MIN_NUMBER_OF_SAMPLES)
	Macro for float data stream array initialization. More...

Typedefs
typedef struct twr_data_stream_t	twr_data_stream_t
	Data stream instance.

Enumerations
enum	twr_data_stream_type_t { TWR_DATA_STREAM_TYPE_FLOAT = 0 , TWR_DATA_STREAM_TYPE_INT = 1 }
	Data stream type.

Functions
void	twr_data_stream_init (twr_data_stream_t self, int min_number_of_samples, twr_data_stream_buffer_t buffer)
	Initialize data stream instance. More...

void	twr_data_stream_feed (twr_data_stream_t self, void data)
	Feed data into stream instance. More...

void	twr_data_stream_reset (twr_data_stream_t *self)
	Reset data stream. More...

int	twr_data_stream_get_counter (twr_data_stream_t *self)
	Get counter.

int	twr_data_stream_get_length (twr_data_stream_t *self)
	Get length.

twr_data_stream_type_t	twr_data_stream_get_type (twr_data_stream_t *self)
	Get type.

int	twr_data_stream_get_number_of_samples (twr_data_stream_t *self)
	Get buffer number_of_samples.

bool	twr_data_stream_get_average (twr_data_stream_t self, void result)
	Get average value of data stream. More...

bool	twr_data_stream_get_median (twr_data_stream_t self, void result)
	Get median value of data stream. More...

bool	twr_data_stream_get_first (twr_data_stream_t self, void result)
	Get first value in data stream. More...

bool	twr_data_stream_get_last (twr_data_stream_t self, void result)
	Get last value in data stream. More...

bool	twr_data_stream_get_nth (twr_data_stream_t self, int n, void result)
	Get nth value in data stream. More...

bool	twr_data_stream_get_max (twr_data_stream_t self, void result)
	Get max value. More...

bool	twr_data_stream_get_min (twr_data_stream_t self, void result)
	Get min value. More...

Detailed Description

Library for computations on stream of data.

Macro Definition Documentation

◆ TWR_DATA_STREAM_FLOAT_ARRAY

#define TWR_DATA_STREAM_FLOAT_ARRAY	(	NAME,
		COUNT,
		NUMBER_OF_SAMPLES
	)

Value:

    static float NAME##_feed[(COUNT)][(NUMBER_OF_SAMPLES)]; \
    static float NAME##_sort[(NUMBER_OF_SAMPLES)]; \
    static twr_data_stream_buffer_t NAME##_buffer[(COUNT)]; \
    static twr_data_stream_t NAME[(COUNT)];

Macro for float data stream array declaration.

Definition at line 36 of file twr_data_stream.h.

◆ TWR_DATA_STREAM_FLOAT_ARRAY_INIT

#define TWR_DATA_STREAM_FLOAT_ARRAY_INIT	(	NAME,
		COUNT,
		MIN_NUMBER_OF_SAMPLES
	)

Value:

    for (size_t i = 0; i < (COUNT); i++) \
    { \
        NAME##_buffer[i].feed = NAME##_feed[i]; \
        NAME##_buffer[i].sort = NAME##_sort; \
        NAME##_buffer[i].number_of_samples = (sizeof(NAME##_feed[i]) / sizeof(float)); \
        NAME##_buffer[i].type=TWR_DATA_STREAM_TYPE_FLOAT; \
        twr_data_stream_init(&NAME[i], (MIN_NUMBER_OF_SAMPLES), &NAME##_buffer[i]); \
    }

Macro for float data stream array initialization.

Definition at line 44 of file twr_data_stream.h.

◆ TWR_DATA_STREAM_FLOAT_BUFFER

#define TWR_DATA_STREAM_FLOAT_BUFFER	(	NAME,
		NUMBER_OF_SAMPLES
	)

Value:

    float NAME##_feed[NUMBER_OF_SAMPLES]; \
    float NAME##_sort[NUMBER_OF_SAMPLES]; \
    twr_data_stream_buffer_t NAME = { \
            .feed = NAME##_feed, \
            .sort = NAME##_sort, \
            .number_of_samples = NUMBER_OF_SAMPLES, \
            .type=TWR_DATA_STREAM_TYPE_FLOAT \
    };

Macro for float data stream buffer declaration.

Definition at line 12 of file twr_data_stream.h.

◆ TWR_DATA_STREAM_INT_BUFFER

#define TWR_DATA_STREAM_INT_BUFFER	(	NAME,
		NUMBER_OF_SAMPLES
	)

Value:

    int NAME##_feed[NUMBER_OF_SAMPLES]; \
    int NAME##_sort[NUMBER_OF_SAMPLES]; \
    twr_data_stream_buffer_t NAME = { \
            .feed = NAME##_feed, \
            .sort = NAME##_sort, \
            .number_of_samples = NUMBER_OF_SAMPLES, \
            .type=TWR_DATA_STREAM_TYPE_INT \
    };

Macro for int data stream buffer declaration.

Definition at line 24 of file twr_data_stream.h.

Function Documentation

◆ twr_data_stream_feed()

void twr_data_stream_feed	(	twr_data_stream_t *	self,
		void *	data
	)

Feed data into stream instance.

Parameters

[in]	self	Instance
[in]	data	Input data to be fed into data stream

Definition at line 15 of file twr_data_stream.c.

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◆ twr_data_stream_get_average()

bool twr_data_stream_get_average	(	twr_data_stream_t *	self,
		void *	result
	)

Get average value of data stream.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 84 of file twr_data_stream.c.

◆ twr_data_stream_get_first()

bool twr_data_stream_get_first	(	twr_data_stream_t *	self,
		void *	result
	)

Get first value in data stream.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 185 of file twr_data_stream.c.

◆ twr_data_stream_get_last()

bool twr_data_stream_get_last	(	twr_data_stream_t *	self,
		void *	result
	)

Get last value in data stream.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 220 of file twr_data_stream.c.

◆ twr_data_stream_get_max()

bool twr_data_stream_get_max	(	twr_data_stream_t *	self,
		void *	result
	)

Get max value.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 304 of file twr_data_stream.c.

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◆ twr_data_stream_get_median()

bool twr_data_stream_get_median	(	twr_data_stream_t *	self,
		void *	result
	)

Get median value of data stream.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 131 of file twr_data_stream.c.

◆ twr_data_stream_get_min()

bool twr_data_stream_get_min	(	twr_data_stream_t *	self,
		void *	result
	)

Get min value.

Parameters

[in]	self	Instance
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 360 of file twr_data_stream.c.

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◆ twr_data_stream_get_nth()

bool twr_data_stream_get_nth	(	twr_data_stream_t *	self,
		int	n,
		void *	result
	)

Get nth value in data stream.

Parameters

[in]	self	Instance
[in]	n	position (example: 0 is first, -1 is last)
[out]	self	Pointer to buffer where result will be stored

Returns: true On success (desired value is available); false On failure (desired value is not available)

Definition at line 248 of file twr_data_stream.c.

◆ twr_data_stream_init()

void twr_data_stream_init	(	twr_data_stream_t *	self,
		int	min_number_of_samples,
		twr_data_stream_buffer_t *	buffer
	)

Initialize data stream instance.

Parameters

[in]	self	Instance
[in]	int	min_number_of_samples minimal number of samples for calculation avarage, median ...
[in]	buffer	Buffer holding data stream content
[in]	buffer_size	Size of buffer holding data stream content

Definition at line 6 of file twr_data_stream.c.

◆ twr_data_stream_reset()

void twr_data_stream_reset ( twr_data_stream_t * self )

Reset data stream.

Parameters

[in] self Instance

Definition at line 58 of file twr_data_stream.c.

Referenced by twr_data_stream_feed().

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Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ TWR_DATA_STREAM_FLOAT_ARRAY

◆ TWR_DATA_STREAM_FLOAT_ARRAY_INIT

◆ TWR_DATA_STREAM_FLOAT_BUFFER

◆ TWR_DATA_STREAM_INT_BUFFER

Function Documentation

◆ twr_data_stream_feed()

◆ twr_data_stream_get_average()

◆ twr_data_stream_get_first()

◆ twr_data_stream_get_last()

◆ twr_data_stream_get_max()

◆ twr_data_stream_get_median()

◆ twr_data_stream_get_min()

◆ twr_data_stream_get_nth()

◆ twr_data_stream_init()

◆ twr_data_stream_reset()