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/* These functions must be supplied by any binary linking with common/param
* so it can fail commands. */
#ifndef LIGHTNING_COMMON_JSON_COMMAND_H
#define LIGHTNING_COMMON_JSON_COMMAND_H
#include "config.h"
#include <ccan/compiler/compiler.h>
#include <common/errcode.h>
#include <common/json.h>
#include <common/jsonrpc_errors.h>
#include <stdbool.h>
struct command;
struct command_result;
/* Caller supplied this: param assumes it can call it. */
struct command_result *command_fail(struct command *cmd, errcode_t code,
const char *fmt, ...)
PRINTF_FMT(3, 4) WARN_UNUSED_RESULT;
/* Convenient wrapper for "paramname: msg: invalid token '.*%s'" */
static inline struct command_result *
command_fail_badparam(struct command *cmd,
const char *paramname,
const char *buffer,
const jsmntok_t *tok,
const char *msg)
{
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"%s: %s: invalid token '%.*s'",
paramname, msg,
json_tok_full_len(tok),
json_tok_full(buffer, tok));
}
/* Also caller supplied: is this invoked simply to get usage? */
bool command_usage_only(const struct command *cmd);
/* If so, this is called. */
void command_set_usage(struct command *cmd, const char *usage);
/* Also caller supplied: is this invoked simply to check parameters? */
bool command_check_only(const struct command *cmd);
#endif /* LIGHTNING_COMMON_JSON_COMMAND_H */