projects / mirror_iproute2.git / blame
| Commit | Line | Data |
|---|---|---|
| fcc16c22 SH |
1 | /* |
| 2 | * Simple streaming JSON writer | |
| 3 | * | |
| 4 | * This takes care of the annoying bits of JSON syntax like the commas | |
| 5 | * after elements | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * as published by the Free Software Foundation; either version | |
| 10 | * 2 of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * Authors: Stephen Hemminger <stephen@networkplumber.org> | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef _JSON_WRITER_H_ | |
| 16 | #define _JSON_WRITER_H_ | |
| 17 | ||
| 18 | #include <stdbool.h> | |
| 19 | #include <stdint.h> | |
| 20 | ||
| 21 | /* Opaque class structure */ | |
| 22 | typedef struct json_writer json_writer_t; | |
| 23 | ||
| 24 | /* Create a new JSON stream */ | |
| 25 | json_writer_t *jsonw_new(FILE *f); | |
| 26 | /* End output to JSON stream */ | |
| 27 | void jsonw_destroy(json_writer_t **self_p); | |
| 28 | ||
| 29 | /* Cause output to have pretty whitespace */ | |
| 30 | void jsonw_pretty(json_writer_t *self, bool on); | |
| 31 | ||
| 32 | /* Add property name */ | |
| 33 | void jsonw_name(json_writer_t *self, const char *name); | |
| 34 | ||
| 35 | /* Add value */ | |
| 36 | void jsonw_string(json_writer_t *self, const char *value); | |
| 37 | void jsonw_bool(json_writer_t *self, bool value); | |
| 38 | void jsonw_float(json_writer_t *self, double number); | |
| 39 | void jsonw_uint(json_writer_t *self, uint64_t number); | |
| 40 | void jsonw_int(json_writer_t *self, int64_t number); | |
| 41 | void jsonw_null(json_writer_t *self); | |
| 42 | ||
| 43 | /* Useful Combinations of name and value */ | |
| 44 | void jsonw_string_field(json_writer_t *self, const char *prop, const char *val); | |
| 45 | void jsonw_bool_field(json_writer_t *self, const char *prop, bool value); | |
| 46 | void jsonw_float_field(json_writer_t *self, const char *prop, double num); | |
| 47 | void jsonw_uint_field(json_writer_t *self, const char *prop, uint64_t num); | |
| 48 | void jsonw_int_field(json_writer_t *self, const char *prop, int64_t num); | |
| 49 | void jsonw_null_field(json_writer_t *self, const char *prop); | |
| 50 | ||
| 51 | /* Collections */ | |
| 52 | void jsonw_start_object(json_writer_t *self); | |
| 53 | void jsonw_end_object(json_writer_t *self); | |
| 54 | ||
| 55 | void jsonw_start_array(json_writer_t *self); | |
| 56 | void jsonw_end_array(json_writer_t *self); | |
| 57 | ||
| 58 | /* Override default exception handling */ | |
| 59 | typedef void (jsonw_err_handler_fn)(const char *); | |
| 60 | ||
| 61 | #endif /* _JSON_WRITER_H_ */ |