discardBody

    fn discardBody(request: *Request, keep_alive: bool) bool {
        // Prepare to receive another request on the same connection.
        // There are two factors to consider:
        // * Any body the client sent must be discarded.
        // * The Server's read_buffer may already have some bytes in it from
        //   whatever came after the head, which may be the next HTTP request
        //   or the request body.
        // If the connection won't be kept alive, then none of this matters
        // because the connection will be severed after the response is sent.
        const r = &request.server.reader;
        if (keep_alive and request.head.keep_alive) switch (r.state) {
            .received_head => {
                if (request.head.method.requestHasBody()) {
                    assert(request.head.transfer_encoding != .none or request.head.content_length != null);
                    const reader_interface = request.readerExpectContinue(&.{}) catch return false;
                    _ = reader_interface.discardRemaining() catch return false;
                    assert(r.state == .ready);
                } else {
                    r.state = .ready;
                }
                return true;
            },
            .body_remaining_content_length, .body_remaining_chunk_len, .body_none, .ready => return true,
            else => unreachable,
        };

        // Avoid clobbering the state in case a reading stream already exists.
        switch (r.state) {
            .received_head => r.state = .closing,
            else => {},
        }
        return false;
    }