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73 lines
2.6 KiB
73 lines
2.6 KiB
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ |
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/* |
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* Simple streaming JSON writer |
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* |
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* This takes care of the annoying bits of JSON syntax like the commas |
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* after elements |
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* |
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* Authors: Stephen Hemminger <[email protected]> |
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*/ |
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#ifndef _JSON_WRITER_H_ |
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#define _JSON_WRITER_H_ |
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#include <stdbool.h> |
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#include <stdint.h> |
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#include <stdarg.h> |
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#include <linux/compiler.h> |
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/* Opaque class structure */ |
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typedef struct json_writer json_writer_t; |
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/* Create a new JSON stream */ |
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json_writer_t *jsonw_new(FILE *f); |
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/* End output to JSON stream */ |
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void jsonw_destroy(json_writer_t **self_p); |
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/* Cause output to have pretty whitespace */ |
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void jsonw_pretty(json_writer_t *self, bool on); |
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/* Reset separator to create new JSON */ |
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void jsonw_reset(json_writer_t *self); |
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/* Add property name */ |
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void jsonw_name(json_writer_t *self, const char *name); |
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/* Add value */ |
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void __printf(2, 0) jsonw_vprintf_enquote(json_writer_t *self, const char *fmt, |
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va_list ap); |
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void __printf(2, 3) jsonw_printf(json_writer_t *self, const char *fmt, ...); |
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void jsonw_string(json_writer_t *self, const char *value); |
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void jsonw_bool(json_writer_t *self, bool value); |
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void jsonw_float(json_writer_t *self, double number); |
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void jsonw_float_fmt(json_writer_t *self, const char *fmt, double num); |
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void jsonw_uint(json_writer_t *self, uint64_t number); |
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void jsonw_hu(json_writer_t *self, unsigned short number); |
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void jsonw_int(json_writer_t *self, int64_t number); |
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void jsonw_null(json_writer_t *self); |
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void jsonw_lluint(json_writer_t *self, unsigned long long int num); |
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/* Useful Combinations of name and value */ |
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void jsonw_string_field(json_writer_t *self, const char *prop, const char *val); |
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void jsonw_bool_field(json_writer_t *self, const char *prop, bool value); |
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void jsonw_float_field(json_writer_t *self, const char *prop, double num); |
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void jsonw_uint_field(json_writer_t *self, const char *prop, uint64_t num); |
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void jsonw_hu_field(json_writer_t *self, const char *prop, unsigned short num); |
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void jsonw_int_field(json_writer_t *self, const char *prop, int64_t num); |
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void jsonw_null_field(json_writer_t *self, const char *prop); |
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void jsonw_lluint_field(json_writer_t *self, const char *prop, |
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unsigned long long int num); |
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void jsonw_float_field_fmt(json_writer_t *self, const char *prop, |
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const char *fmt, double val); |
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/* Collections */ |
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void jsonw_start_object(json_writer_t *self); |
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void jsonw_end_object(json_writer_t *self); |
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void jsonw_start_array(json_writer_t *self); |
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void jsonw_end_array(json_writer_t *self); |
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/* Override default exception handling */ |
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typedef void (jsonw_err_handler_fn)(const char *); |
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#endif /* _JSON_WRITER_H_ */
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