readers.h File Reference

#include <stdio.h>
#include "types.h"
#include "data.h"

Go to the source code of this file.

Data Structures
struct	WU_Reader
	Base for a reader, which defines the minimal interface for reading the next data point from a data source and a method to free the reader's resources. More...
struct	WU_CsvReader
	WU_CsvReader is a concrete implementation of the WU_Reader interface that reads data from a CSV file. More...
struct	WU_JsonReader
	WU_JsonReader is a concrete implementation of the WU_Reader interface that reads data from a JSON Lines file (one valid JSON object per line). More...

Macros
#define	wu_reader_next(reader)
#define	wu_reader_last_error(reader)
#define	wu_reader_delete(reader)
#define	WU_CSV_MAX_LINE_SIZE   2048
#define	WU_JSON_MAX_LINE_SIZE   4096
#define	WU_READER(r)
#define	wu_reader_list(...)

Enumerations
enum	WU_CsvError { WU_CSV_OK = 0 , WU_CSV_ERROR_EOF = 1 , WU_CSV_ERROR_PARSE = 2 }
enum	WU_JsonError { WU_JSON_OK = 0 , WU_JSON_ERROR_EOF = 1 , WU_JSON_ERROR_PARSE = 2 , WU_JSON_ERROR_MISSING_FIELD = 3 }

Functions
WU_CsvReader	wu_csv_reader_new (FILE *file, WU_DataType data_type, WU_TimeUnit time_units, bool has_headers)
WU_JsonReader	wu_json_reader_new (FILE *file, WU_DataType data_type, WU_TimeUnit time_units)

Macro Definition Documentation

WU_CSV_MAX_LINE_SIZE

#define WU_CSV_MAX_LINE_SIZE   2048

Definition at line 30 of file readers.h.

WU_JSON_MAX_LINE_SIZE

#define WU_JSON_MAX_LINE_SIZE   4096

Definition at line 31 of file readers.h.

WU_READER

#define WU_READER

(

r

)

Value:

((WU_Reader)(r))

Definition at line 87 of file readers.h.

wu_reader_delete

#define wu_reader_delete

(

reader

)

Value:

    do { \
    if ((reader) && ((WU_Reader)(reader))->delete) \
        ((WU_Reader)(reader))->delete((WU_Reader)(reader)); \
} while(0)

Definition at line 25 of file readers.h.

wu_reader_last_error

#define wu_reader_last_error

(

reader

)

Value:

((reader)->last_error)

Definition at line 23 of file readers.h.

wu_reader_list

#define wu_reader_list

(

...

)

Value:

((WU_Reader[]){__VA_ARGS__, NULL})

Definition at line 88 of file readers.h.

wu_reader_next

#define wu_reader_next

(

reader

)

Value:

(((WU_Reader)(reader))->next((WU_Reader)(reader)))

Definition at line 21 of file readers.h.

Enumeration Type Documentation

WU_CsvError

enum WU_CsvError

Enumerator
WU_CSV_OK
WU_CSV_ERROR_EOF
WU_CSV_ERROR_PARSE

Definition at line 33 of file readers.h.

WU_JsonError

enum WU_JsonError

Enumerator
WU_JSON_OK
WU_JSON_ERROR_EOF
WU_JSON_ERROR_PARSE
WU_JSON_ERROR_MISSING_FIELD

Definition at line 39 of file readers.h.

Function Documentation

wu_csv_reader_new()

WU_CsvReader wu_csv_reader_new	(	FILE *	file,
		WU_DataType	data_type,
		WU_TimeUnit	time_units,
		bool	has_headers )

Definition at line 92 of file csv.c.

wu_json_reader_new()

WU_JsonReader wu_json_reader_new	(	FILE *	file,
		WU_DataType	data_type,
		WU_TimeUnit	time_units )

Definition at line 189 of file json.c.