diff options
Diffstat (limited to 'src/vnet/session/session_node.c')
| -rw-r--r-- | src/vnet/session/session_node.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c index 09687687189..d015584990e 100644 --- a/src/vnet/session/session_node.c +++ b/src/vnet/session/session_node.c @@ -168,15 +168,19 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, return 0; } + /* Check how much we can pull. */ + max_dequeue0 = svm_fifo_max_dequeue (s0->server_tx_fifo); + if (peek_data) { - /* Offset in rx fifo from where to peek data */ + /* Offset in rx fifo from where to peek data */ tx_offset = transport_vft->tx_fifo_offset (tc0); + if (PREDICT_FALSE (tx_offset >= max_dequeue0)) + max_dequeue0 = 0; + else + max_dequeue0 -= tx_offset; } - /* Check how much we can pull. If buffering, subtract the offset */ - max_dequeue0 = svm_fifo_max_dequeue (s0->server_tx_fifo) - tx_offset; - /* Nothing to read return */ if (max_dequeue0 == 0) { @@ -277,6 +281,8 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, { n_bytes_read = svm_fifo_peek (s0->server_tx_fifo, tx_offset, len_to_deq0, data0); + if (n_bytes_read <= 0) + goto dequeue_fail; /* Keep track of progress locally, transport is also supposed to * increment it independently when pushing the header */ tx_offset += n_bytes_read; @@ -285,11 +291,10 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, { n_bytes_read = svm_fifo_dequeue_nowait (s0->server_tx_fifo, len_to_deq0, data0); + if (n_bytes_read <= 0) + goto dequeue_fail; } - if (n_bytes_read <= 0) - goto dequeue_fail; - b0->current_length = n_bytes_read; left_to_snd0 -= n_bytes_read; @@ -616,7 +621,7 @@ skip_dequeue: case FIFO_EVENT_APP_TX: s0 = session_event_get_session (e0, my_thread_index); - if (CLIB_DEBUG && !s0) + if (PREDICT_FALSE (!s0)) { clib_warning ("It's dead, Jim!"); continue; |