core-lightning/lightningd/json.h
Mark Beckwith e5918f4e5a param: upgraded json_tok_double
Also renamed old version to json_to_double for use as a utility funciton.

Signed-off-by: Mark Beckwith <wythe@intrig.com>
2018-08-20 01:02:25 +00:00

93 lines
2.9 KiB
C

/* lightningd/json.h
* Helpers for outputting JSON results that are specific only for
* lightningd.
*/
#ifndef LIGHTNING_LIGHTNINGD_JSON_H
#define LIGHTNING_LIGHTNINGD_JSON_H
#include "config.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#define JSMN_STRICT 1
# include <external/jsmn/jsmn.h>
struct bitcoin_txid;
struct channel_id;
struct command;
struct json_result;
struct pubkey;
struct route_hop;
struct short_channel_id;
struct wallet_payment;
struct wireaddr;
struct wireaddr_internal;
/* Output a route array. */
void json_add_route(struct json_result *r, char const *n,
const struct route_hop *hops, size_t hops_len);
/* Output the fields of a wallet payment.
* Should be used within an object context. */
void json_add_payment_fields(struct json_result *response,
const struct wallet_payment *t);
/* '"fieldname" : "0289abcdef..."' or "0289abcdef..." if fieldname is NULL */
void json_add_pubkey(struct json_result *response,
const char *fieldname,
const struct pubkey *key);
/* '"fieldname" : <hexrev>' or "<hexrev>" if fieldname is NULL */
void json_add_txid(struct json_result *result, const char *fieldname,
const struct bitcoin_txid *txid);
/* Extract double from this (must be a number literal) */
bool json_tok_double(struct command *cmd, const char *name,
const char *buffer, const jsmntok_t *tok,
double **num);
/* Extract number from this (may be a string, or a number literal) */
bool json_tok_number(struct command *cmd, const char *name,
const char *buffer, const jsmntok_t *tok,
unsigned int **num);
/* Extract a pubkey from this */
bool json_tok_pubkey(const char *buffer, const jsmntok_t *tok,
struct pubkey *pubkey);
/* Extract a short_channel_id from this */
bool json_tok_short_channel_id(const char *buffer, const jsmntok_t *tok,
struct short_channel_id *scid);
/* Extract number from this (may be a string, or a number literal) */
bool json_tok_u64(struct command *cmd, const char *name,
const char *buffer, const jsmntok_t *tok,
uint64_t **num);
/* '"fieldname" : "1234:5:6"' */
void json_add_short_channel_id(struct json_result *response,
const char *fieldname,
const struct short_channel_id *id);
bool json_tok_channel_id(const char *buffer, const jsmntok_t *tok,
struct channel_id *cid);
/* JSON serialize a network address for a node */
void json_add_address(struct json_result *response, const char *fieldname,
const struct wireaddr *addr);
/* JSON serialize a network address for a node. */
void json_add_address_internal(struct json_result *response,
const char *fieldname,
const struct wireaddr_internal *addr);
/*
* Set the address of @out to @tok. Used as a callback by handlers that
* want to unmarshal @tok themselves.
*/
bool json_tok_tok(struct command *cmd, const char *name,
const char *buffer, const jsmntok_t * tok,
const jsmntok_t **out);
#endif /* LIGHTNING_LIGHTNINGD_JSON_H */