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| author | Tony Lindgren <tony@atomide.com> | 2017-11-28 07:06:34 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-11-28 07:06:34 -0800 |
| commit | 2db57789e6612ce0cf2fcbb577a1c8307b708566 (patch) | |
| tree | dd9f9e3dffabbf5cb932fcf5055ab329ca940fa0 /tools/bpf/bpftool/json_writer.h | |
| parent | f0c96c6d40312b1a76cd36709dc3eb5948c1b97f (diff) | |
| parent | e9a9bb4e4779ca74cb52a6e2f8acbc0881d3bb18 (diff) | |
Merge branch 'soc-fixes' into omap-for-v4.15/fixes
Diffstat (limited to 'tools/bpf/bpftool/json_writer.h')
| -rw-r--r-- | tools/bpf/bpftool/json_writer.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/json_writer.h b/tools/bpf/bpftool/json_writer.h new file mode 100644 index 000000000000..0fa2fb1b6351 --- /dev/null +++ b/tools/bpf/bpftool/json_writer.h @@ -0,0 +1,72 @@ +/* + * Simple streaming JSON writer + * + * This takes care of the annoying bits of JSON syntax like the commas + * after elements + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Stephen Hemminger <stephen@networkplumber.org> + */ + +#ifndef _JSON_WRITER_H_ +#define _JSON_WRITER_H_ + +#include <stdbool.h> +#include <stdint.h> +#include <stdarg.h> + +/* Opaque class structure */ +typedef struct json_writer json_writer_t; + +/* Create a new JSON stream */ +json_writer_t *jsonw_new(FILE *f); +/* End output to JSON stream */ +void jsonw_destroy(json_writer_t **self_p); + +/* Cause output to have pretty whitespace */ +void jsonw_pretty(json_writer_t *self, bool on); + +/* Add property name */ +void jsonw_name(json_writer_t *self, const char *name); + +/* Add value */ +void jsonw_vprintf_enquote(json_writer_t *self, const char *fmt, va_list ap); +void jsonw_printf(json_writer_t *self, const char *fmt, ...); +void jsonw_string(json_writer_t *self, const char *value); +void jsonw_bool(json_writer_t *self, bool value); +void jsonw_float(json_writer_t *self, double number); +void jsonw_float_fmt(json_writer_t *self, const char *fmt, double num); +void jsonw_uint(json_writer_t *self, uint64_t number); +void jsonw_hu(json_writer_t *self, unsigned short number); +void jsonw_int(json_writer_t *self, int64_t number); +void jsonw_null(json_writer_t *self); +void jsonw_lluint(json_writer_t *self, unsigned long long int num); + +/* Useful Combinations of name and value */ +void jsonw_string_field(json_writer_t *self, const char *prop, const char *val); +void jsonw_bool_field(json_writer_t *self, const char *prop, bool value); +void jsonw_float_field(json_writer_t *self, const char *prop, double num); +void jsonw_uint_field(json_writer_t *self, const char *prop, uint64_t num); +void jsonw_hu_field(json_writer_t *self, const char *prop, unsigned short num); +void jsonw_int_field(json_writer_t *self, const char *prop, int64_t num); +void jsonw_null_field(json_writer_t *self, const char *prop); +void jsonw_lluint_field(json_writer_t *self, const char *prop, + unsigned long long int num); +void jsonw_float_field_fmt(json_writer_t *self, const char *prop, + const char *fmt, double val); + +/* Collections */ +void jsonw_start_object(json_writer_t *self); +void jsonw_end_object(json_writer_t *self); + +void jsonw_start_array(json_writer_t *self); +void jsonw_end_array(json_writer_t *self); + +/* Override default exception handling */ +typedef void (jsonw_err_handler_fn)(const char *); + +#endif /* _JSON_WRITER_H_ */ |
