mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-29 09:32:24 +00:00
3d379b1341
Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: David Sterba <dsterba@suse.com>
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License v2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#ifndef __BTRFS_FORMAT_OUTPUT_H__
|
|
#define __BTRFS_FORMAT_OUTPUT_H__
|
|
|
|
struct rowspec {
|
|
/* Identifier for the row */
|
|
const char *key;
|
|
/*
|
|
* Format to print:
|
|
* - starting with %: must be a valid printf spec
|
|
* (values: va_args)
|
|
* - uuid: format UUID as text
|
|
* (value: u8 *uuid)
|
|
* - list: print list opening bracket [
|
|
* (values printed separately)
|
|
* - map: start a new group, opens {
|
|
* (values printed separately)
|
|
* - size: pretty print size according to
|
|
* (values: u64 size, u32 unit_type)
|
|
* - size-or-none: pretty print non-zero values, "-" otherwise
|
|
* (values: same as "size")
|
|
* - qgroupid: print qgroup from separate level and id
|
|
* (values: u64 level, u64 id)
|
|
*/
|
|
const char *fmt;
|
|
/* String to print in format:text */
|
|
const char *out_text;
|
|
/* String to print in format:json, is quoted */
|
|
const char *out_json;
|
|
};
|
|
|
|
#define ROWSPEC_END { .key = NULL },
|
|
#define JSON_NESTING_LIMIT 16
|
|
|
|
/*
|
|
* Nested types
|
|
*/
|
|
enum json_type {
|
|
JSON_TYPE_INVALID,
|
|
JSON_TYPE_MAP,
|
|
JSON_TYPE_ARRAY,
|
|
};
|
|
|
|
struct format_ctx {
|
|
/* Preferred width of the first column with key (format: text) */
|
|
int width;
|
|
/* Initial indentation before the first column (format: text) */
|
|
int indent;
|
|
/* Nesting of groups like lists or maps (format: json) */
|
|
int depth;
|
|
|
|
/* Array of named output fields as defined by the command */
|
|
const struct rowspec *rowspec;
|
|
|
|
char jtype[JSON_NESTING_LIMIT];
|
|
enum json_type memb[JSON_NESTING_LIMIT];
|
|
};
|
|
|
|
void fmt_start(struct format_ctx *fctx, const struct rowspec *spec, int width,
|
|
int indent);
|
|
void fmt_end(struct format_ctx *fctx);
|
|
|
|
void fmt_print(struct format_ctx *fctx, const char* key, ...);
|
|
|
|
void fmt_start_list_value(struct format_ctx *fctx);
|
|
void fmt_end_list_value(struct format_ctx *fctx);
|
|
|
|
void fmt_start_value(struct format_ctx *fctx, const struct rowspec *row);
|
|
void fmt_end_value(struct format_ctx *fctx, const struct rowspec *row);
|
|
|
|
void fmt_print_start_group(struct format_ctx *fctx, const char *name,
|
|
enum json_type jtype);
|
|
void fmt_print_end_group(struct format_ctx *fctx, const char *name);
|
|
|
|
#endif
|