- sz = btr_pool_get_buffer(rn->btrp, &buf);
- if (sz == 0)
- goto err;
- ret = read_nonblock(rn->fd, buf, sz, &s->rfds, &n);
- if (n > 0)
- btr_add_output_pool(rn->btrp, n, btrn);
- if (ret >= 0)
- return;
-err:
- btr_remove_node(rn->btrn);
- t->error = ret;
+ iovcnt = btr_pool_get_buffers(rn->btrp, iov);
+ if (iovcnt == 0)
+ goto out;
+ ret = readv_nonblock(rn->fd, iov, iovcnt, &s->rfds, &num_bytes);
+ if (num_bytes == 0)
+ goto out;
+ if (num_bytes <= iov[0].iov_len) /* only the first buffer was filled */
+ btr_add_output_pool(rn->btrp, num_bytes, btrn);
+ else { /* both buffers contain data */
+ btr_add_output_pool(rn->btrp, iov[0].iov_len, btrn);
+ btr_add_output_pool(rn->btrp, num_bytes - iov[0].iov_len, btrn);
+ }
+out:
+ if (ret < 0)
+ btr_remove_node(&rn->btrn);
+ return ret;