+ n_bytes_read = svm_fifo_peek (ctx->s->server_tx_fifo, ctx->tx_offset,
+ len_to_deq, data0);
+ ASSERT (n_bytes_read > 0);
+ /* Keep track of progress locally, transport is also supposed to
+ * increment it independently when pushing the header */
+ ctx->tx_offset += n_bytes_read;
+ }
+ else
+ {
+ if (ctx->transport_vft->tx_type == TRANSPORT_TX_DGRAM)
+ {
+ session_dgram_hdr_t *hdr = &ctx->hdr;
+ svm_fifo_t *f = ctx->s->server_tx_fifo;
+ u16 deq_now;
+ u32 offset;
+
+ ASSERT (hdr->data_length > hdr->data_offset);
+ deq_now = clib_min (hdr->data_length - hdr->data_offset,
+ len_to_deq);
+ offset = hdr->data_offset + SESSION_CONN_HDR_LEN;
+ n_bytes_read = svm_fifo_peek (f, offset, deq_now, data0);
+ ASSERT (n_bytes_read > 0);
+
+ if (ctx->s->session_state == SESSION_STATE_LISTENING)
+ {
+ ip_copy (&ctx->tc->rmt_ip, &hdr->rmt_ip, ctx->tc->is_ip4);
+ ctx->tc->rmt_port = hdr->rmt_port;
+ }
+ hdr->data_offset += n_bytes_read;
+ if (hdr->data_offset == hdr->data_length)
+ {
+ offset = hdr->data_length + SESSION_CONN_HDR_LEN;
+ svm_fifo_dequeue_drop (f, offset);
+ }
+ }
+ else
+ {
+ n_bytes_read = svm_fifo_dequeue_nowait (ctx->s->server_tx_fifo,
+ len_to_deq, data0);
+ ASSERT (n_bytes_read > 0);
+ }