SORT_XTRACE("s-internal: Reading (bufsize=%zd)", bufsize);
P(internal_item_t) *item_array = ctx->big_buf, *item = item_array, *last_item;
SORT_XTRACE("s-internal: Reading (bufsize=%zd)", bufsize);
P(internal_item_t) *item_array = ctx->big_buf, *item = item_array, *last_item;