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https://git.rwth-aachen.de/acs/public/villas/node/
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83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/** Read / write sample data in different formats.
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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*********************************************************************************/
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#pragma once
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#include <stdio.h>
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#include <jansson.h>
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/* Forward declarations */
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struct sample;
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enum sample_io_format {
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SAMPLE_IO_FORMAT_VILLAS,
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SAMPLE_IO_FORMAT_JSON,
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SAMPLE_IO_FORMAT_HDF5,
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SAMPLE_IO_FORMAT_COMTRADE
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};
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/** These flags define the format which is used by sample_io_fscan() and sample_io_fprint(). */
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enum sample_flags {
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SAMPLE_IO_NANOSECONDS = (1 << 0),
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SAMPLE_IO_OFFSET = (1 << 1),
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SAMPLE_IO_SEQUENCE = (1 << 2),
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SAMPLE_IO_VALUES = (1 << 3),
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SAMPLE_IO_ALL = 16-1
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};
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/* Not implemented yet */
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#if 0
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struct sample_io_handle {
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enum sample_io_format format;
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int flags
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FILE *file;
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struct list fields;
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};
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int sample_io_init(struct sample_io *io, enum sample_io_format fmt, char *mode, int flags);
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int sample_io_destroy(struct sample_io *io);
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int sample_io_open(struct sample_io *io);
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int sample_io_close(struct sample_io *io);
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int sample_io_write(struct sample_io *io, struct sample *smps[], size_t cnt);
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int sample_io_read(struct sample_io *io, struct sample *smps[], size_t cnt);
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int sample_io_eof(struct sample_io *io);
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int sample_io_rewind(struct sample_io *io);
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#endif
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/* Lowlevel interface */
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int sample_io_fprint(FILE *f, struct sample *s, enum sample_io_format fmt, int flags);
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int sample_io_fscan(FILE *f, struct sample *s, enum sample_io_format fmt, int *flags);
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/* VILLASnode human readable format */
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int sample_io_villas_print(char *buf, size_t len, struct sample *s, int flags);
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int sample_io_villas_scan(const char *line, struct sample *s, int *fl);
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int sample_io_villas_fprint(FILE *f, struct sample *s, int flags);
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int sample_io_villas_fscan(FILE *f, struct sample *s, int *flags);
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/* JSON format */
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int sample_io_json_pack(json_t **j, struct sample *s, int flags);
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int sample_io_json_unpack(json_t *j, struct sample *s, int *flags);
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int sample_io_json_fprint(FILE *f, struct sample *s, int flags);
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int sample_io_json_fscan(FILE *f, struct sample *s, int *flags);
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