(SLIDE_BYTES (s->write_buf) >
MAX_TXN) ? MAX_TXN : SLIDE_BYTES (s->write_buf);
n = wrap_write (s->fd, SLIDE_RPTR (s->write_buf), n);
(SLIDE_BYTES (s->write_buf) >
MAX_TXN) ? MAX_TXN : SLIDE_BYTES (s->write_buf);
n = wrap_write (s->fd, SLIDE_RPTR (s->write_buf), n);