iproute2/include/json_writer.h
Steve Wise 8958a15c04 rdma: Add MR resource tracking information
Sample output:

Without CAP_NET_ADMIN:

$ rdma resource show mr mrlen 65536
dev mlx4_0 mrlen 65536 pid 0 comm [nvme_rdma]
dev cxgb4_0 mrlen 65536 pid 0 comm [nvme_rdma]

With CAP_NET_ADMIN:

# rdma resource show mr mrlen 65536
dev mlx4_0 rkey 0x12702 lkey 0x12702 iova 0x85724a000 mrlen 65536 pid 0 comm [nvme_rdma]
dev cxgb4_0 rkey 0x68fe4e9 lkey 0x68fe4e9 iova 0x835b91000 mrlen 65536 pid 0 comm [nvme_rdma]

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-04-01 08:18:56 -07:00

69 lines
2.5 KiB
C

/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
/*
* Simple streaming JSON writer
*
* This takes care of the annoying bits of JSON syntax like the commas
* after elements
*
* Authors: Stephen Hemminger <stephen@networkplumber.org>
*/
#ifndef _JSON_WRITER_H_
#define _JSON_WRITER_H_
#include <stdbool.h>
#include <stdint.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_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_xint(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_xint_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_ */