Function destroy_io_conn

connectd/connectd.c:951–972

~ This is the destructor for the (unsuccessful) outgoing connection. We accumulate * the errors which occurred, so we can report to lightningd properly in case * they all fail, and try the next address. * * This is a specialized form of destructor which takes an extra argument; * it set up by either the creatively-named tal_add_destructor2(), or by * the ccan/io's io_set_finish() on a conne

 * it set up by either the creatively-named tal_add_destructor2(), or by
 * the ccan/io's io_set_finish() on a connection. */
static void destroy_io_conn(struct io_conn *conn, struct connecting *connect)
{
	/*~ tal_append_fmt appends to a tal string.  It's terribly convenient */
	const char *errstr = strerror(errno);
	/* errno 0 means they hung up on us. */
	if (errno == 0) {
		errstr = "peer closed connection";
		if (streq(connect->connstate, "Cryptographic handshake"))
			errstr = "peer closed connection (wrong key?)";
	} else if (errno == EMFILE) {
		errstr = "Terminated due to too many connections";
	}

	add_errors_to_error_list(connect,
		       tal_fmt(tmpctx, "%s: %s: %s",
		       fmt_wireaddr_internal(tmpctx,
					     &connect->addrs[connect->addrnum]),
		       connect->connstate, errstr));
	connect->addrnum++;
	connect->conn = NULL;
	try_connect_one_addr(connect);
}

/* This initializes a fresh io_conn by setting it to io_connect to the
 * destination */