s = listen_session_new (0, sst);
s->app_index = srv->index;
- if (stream_session_listen (s, sep))
- goto err;
-
/* Allocate segment manager. All sessions derived out of a listen session
* have fifos allocated by the same segment manager. */
- sm = application_alloc_segment_manager (srv);
- if (sm == 0)
+ if (!(sm = application_alloc_segment_manager (srv)))
goto err;
/* Add to app's listener table. Useful to find all child listeners
handle = listen_session_get_handle (s);
hash_set (srv->listeners_table, handle, segment_manager_index (sm));
+ if (stream_session_listen (s, sep))
+ {
+ segment_manager_del (sm);
+ hash_unset (srv->listeners_table, handle);
+ goto err;
+ }
+
*res = handle;
return 0;
return &app->sm_properties;
}
+static inline int
+app_enqueue_evt (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, u8 lock)
+{
+ if (PREDICT_TRUE (!svm_msg_q_is_full (mq)))
+ {
+ if (lock)
+ {
+ svm_msg_q_add_w_lock (mq, msg);
+ svm_msg_q_unlock (mq);
+ }
+ else if (svm_msg_q_add (mq, msg, SVM_Q_WAIT))
+ {
+ clib_warning ("msg q add returned");
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+ }
+ else
+ {
+ clib_warning ("evt q full");
+ svm_msg_q_free_msg (mq, msg);
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+ return 0;
+}
+
+static inline int
+app_send_io_evt_rx (application_t * app, stream_session_t * s, u8 lock)
+{
+ session_fifo_event_t *evt;
+ svm_msg_q_msg_t msg;
+ svm_msg_q_t *mq;
+
+ if (PREDICT_FALSE (s->session_state == SESSION_STATE_CLOSED))
+ {
+ /* Session is closed so app will never clean up. Flush rx fifo */
+ svm_fifo_dequeue_drop_all (s->server_rx_fifo);
+ return 0;
+ }
+
+ /* Built-in app? Hand event to the callback... */
+ if (app->cb_fns.builtin_app_rx_callback)
+ return app->cb_fns.builtin_app_rx_callback (s);
+
+ /* If no need for event, return */
+ if (!svm_fifo_set_event (s->server_rx_fifo))
+ return 0;
+
+ mq = app->event_queue;
+ if (lock)
+ svm_msg_q_lock (mq);
+
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ clib_warning ("evt q rings full");
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ ASSERT (!svm_msg_q_msg_is_invalid (&msg));
+
+ evt = (session_fifo_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->fifo = s->server_rx_fifo;
+ evt->event_type = FIFO_EVENT_APP_RX;
+
+ return app_enqueue_evt (mq, &msg, lock);
+}
+
+static inline int
+app_send_io_evt_tx (application_t * app, stream_session_t * s, u8 lock)
+{
+ svm_msg_q_t *mq;
+ session_fifo_event_t *evt;
+ svm_msg_q_msg_t msg;
+
+ if (application_is_builtin (app))
+ return 0;
+
+ mq = app->event_queue;
+ if (lock)
+ svm_msg_q_lock (mq);
+
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ clib_warning ("evt q rings full");
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ ASSERT (!svm_msg_q_msg_is_invalid (&msg));
+
+ evt = (session_fifo_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->event_type = FIFO_EVENT_APP_TX;
+ evt->fifo = s->server_tx_fifo;
+
+ return app_enqueue_evt (mq, &msg, lock);
+}
+
+/* *INDENT-OFF* */
+typedef int (app_send_evt_handler_fn) (application_t *app,
+ stream_session_t *s,
+ u8 lock);
+static app_send_evt_handler_fn * const app_send_evt_handler_fns[2] = {
+ app_send_io_evt_rx,
+ app_send_io_evt_tx,
+};
+/* *INDENT-ON* */
+
+/**
+ * Send event to application
+ *
+ * Logic from queue perspective is non-blocking. That is, if there's
+ * not enough space to enqueue a message, we return. However, if the lock
+ * flag is set, we do wait for queue mutex.
+ */
+int
+application_send_event (application_t * app, stream_session_t * s,
+ u8 evt_type)
+{
+ ASSERT (app && evt_type <= FIFO_EVENT_APP_TX);
+ return app_send_evt_handler_fns[evt_type] (app, s, 0 /* lock */ );
+}
+
+int
+application_lock_and_send_event (application_t * app, stream_session_t * s,
+ u8 evt_type)
+{
+ return app_send_evt_handler_fns[evt_type] (app, s, 1 /* lock */ );
+}
+
local_session_t *
application_alloc_local_session (application_t * app)
{
svm_fifo_segment_private_t *seg;
segment_manager_t *sm;
local_session_t *ls;
- svm_queue_t *sq, *cq;
+ svm_msg_q_t *sq, *cq;
ls = application_alloc_local_session (server);
props = application_segment_manager_properties (server);
cprops = application_segment_manager_properties (client);
evt_q_elts = props->evt_q_size + cprops->evt_q_size;
- evt_q_sz = evt_q_elts * sizeof (session_fifo_event_t);
+ evt_q_sz = segment_manager_evt_q_expected_size (evt_q_elts);
seg_size = props->rx_fifo_size + props->tx_fifo_size + evt_q_sz + margin;
has_transport = session_has_transport ((stream_session_t *) ll);
{
if (verbose)
s = format (s, "%-10s%-20s%-15s%-15s%-15s%-15s%-15s", "Index", "Name",
- "API Client", "Namespace", "Add seg size", "Rx fifo size",
- "Tx fifo size");
+ "API Client", "Namespace", "Add seg size", "Rx-f size",
+ "Tx-f size");
else
s = format (s, "%-10s%-20s%-15s%-40s", "Index", "Name", "API Client",
"Namespace");
app_ns_name = app_namespace_id_from_index (app->ns_index);
props = application_segment_manager_properties (app);
if (verbose)
- s = format (s, "%-10d%-20s%-15d%-15d%-15d%-15d%-15d", app->index,
+ s = format (s, "%-10u%-20s%-15d%-15u%-15U%-15U%-15U", app->index,
app_name, app->api_client_index, app->ns_index,
- props->add_segment_size, props->rx_fifo_size,
+ format_memory_size, props->add_segment_size,
+ format_memory_size, props->rx_fifo_size, format_memory_size,
props->tx_fifo_size);
else
- s = format (s, "%-10d%-20s%-15d%-40s", app->index, app_name,
+ s = format (s, "%-10u%-20s%-15d%-40s", app->index, app_name,
app->api_client_index, app_ns_name);
return s;
}
Code Review / vpp.git / blobdiff