+ struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct private_udp_recv_data *purd = rn->private_data;
+ struct btr_node *btrn = rn->btrn;
+ int ret;
+ char *buf = NULL;
+ size_t packet_size, bufsize;
+
+ t->error = 0;
+ ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
+ if (ret < 0)
+ goto err;
+ if (ret == 0)
+ return;
+ if (!FD_ISSET(purd->fd, &s->rfds))
+ return;
+ bufsize = btr_pool_get_buffer(purd->btrp, &buf);
+ ret = -E_UDP_OVERRUN;
+ if (bufsize == 0)
+ goto err;
+ ret = recv_bin_buffer(purd->fd, buf, bufsize);
+ if (ret == 0)
+ ret = -E_RECV_EOF;
+ if (ret < 0)
+ goto err;
+ packet_size = ret;
+ if (packet_size >= FEC_EOF_PACKET_LEN) {
+ if (!memcmp(buf, FEC_EOF_PACKET, FEC_EOF_PACKET_LEN)) {
+ PARA_INFO_LOG("received eof packet\n");
+ ret = -E_RECV_EOF;
+ goto err;
+ }
+ }
+ btr_add_output_pool(purd->btrp, packet_size, btrn);