Function json_setchannelfee

lightningd/peer_control.c:2612–2667

}

static struct command_result *json_setchannelfee(struct command *cmd,
					 const char *buffer,
					 const jsmntok_t *obj UNNEEDED,
					 const jsmntok_t *params)
{
	struct json_stream *response;
	struct peer *peer;
	struct channel **channels;
	u32 *base, *ppm, *delaysecs;

	/* Parse the JSON command */
	if (!param(cmd, buffer, params,
		   p_req("id", param_channel_or_all, &channels),
		   p_opt_def("base", param_msat_u32,
			     &base, cmd->ld->config.fee_base),
		   p_opt_def("ppm", param_number, &ppm,
			     cmd->ld->config.fee_per_satoshi),
		   /* BOLT #7:
		    * If it creates a new `channel_update` with updated channel parameters:
		    *    - SHOULD keep accepting the previous channel parameters for 10 minutes
		    */
		   p_opt_def("enforcedelay", param_number, &delaysecs, 600),
		   NULL))
		return command_param_failed();

	/* Open JSON response object for later iteration */
	response = json_stream_success(cmd);
	json_add_num(response, "base", *base);
	json_add_num(response, "ppm", *ppm);
	json_array_start(response, "channels");

	/* If the users requested 'all' channels we need to iterate */
	if (channels == NULL) {
		list_for_each(&cmd->ld->peers, peer, list) {
			struct channel *channel;
			list_for_each(&peer->channels, channel, list) {
				if (channel->state != CHANNELD_NORMAL &&
				    channel->state != CHANNELD_AWAITING_LOCKIN &&
				    channel->state != DUALOPEND_AWAITING_LOCKIN)
					continue;
				set_channel_config(cmd, channel, base, ppm, NULL, NULL,
						   *delaysecs, response, false);
			}
		}
	/* single peer should be updated */
	} else {
		for (size_t i = 0; i < tal_count(channels); i++) {
			set_channel_config(cmd, channels[i], base, ppm, NULL, NULL,
					   *delaysecs, response, false);
		}
	}

	/* Close and return response */
	json_array_end(response);
	return command_success(cmd, response);
}

static const struct json_command setchannelfee_command = {