Function notify

closingd/closingd.c:29–41

#define HSM_FD 4

static void notify(enum log_level level, const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	wire_sync_write(REQ_FD,
			take(towire_closingd_notification(NULL,
							  level,
							  tal_vfmt(tmpctx, fmt,
								   ap))));

	va_end(ap);
}

static struct bitcoin_tx *close_tx(const tal_t *ctx,
				   const struct chainparams *chainparams,