Function channel_set_state

lightningd/channel.c:722–775

}

void channel_set_state(struct channel *channel,
		       enum channel_state old_state,
		       enum channel_state state,
		       enum state_change reason,
		       char *why)
{
	struct timeabs timestamp;

	/* set closer, if known */
	if (state > CHANNELD_NORMAL && channel->closer == NUM_SIDES) {
		if (reason == REASON_LOCAL)   channel->closer = LOCAL;
		if (reason == REASON_USER)    channel->closer = LOCAL;
		if (reason == REASON_REMOTE)  channel->closer = REMOTE;
		if (reason == REASON_ONCHAIN) channel->closer = REMOTE;
	}

	/* use or update state_change_cause, if known */
	if (reason != REASON_UNKNOWN)
		channel->state_change_cause = reason;
	else
		reason = channel->state_change_cause;

	log_info(channel->log, "State changed from %s to %s",
		 channel_state_name(channel), channel_state_str(state));
	if (channel->state != old_state)
		fatal("channel state %s should be %s",
		      channel_state_name(channel), channel_state_str(old_state));

	channel->state = state;

	/* TODO(cdecker) Selectively save updated fields to DB */
	wallet_channel_save(channel->peer->ld->wallet, channel);

	/* plugin notification channel_state_changed and DB entry */
	if (state != old_state) {  /* see issue #4029 */
		timestamp = time_now();
		wallet_state_change_add(channel->peer->ld->wallet,
					channel->dbid,
					&timestamp,
					old_state,
					state,
					reason,
					why);
		notify_channel_state_changed(channel->peer->ld,
					     &channel->peer->id,
					     &channel->cid,
					     channel->scid,
					     &timestamp,
					     old_state,
					     state,
					     reason,
					     why);
	}
}

const char *channel_change_state_reason_str(enum state_change reason)
{