+static int
+tcp_test_clients_init (vlib_main_t * vm)
+{
+ tclient_main_t *tm = &tclient_main;
+ vlib_thread_main_t *vtm = vlib_get_thread_main ();
+ u32 num_threads;
+ int i;
+
+ tclient_api_hookup (vm);
+ if (create_api_loopback (tm))
+ return -1;
+
+ num_threads = 1 /* main thread */ + vtm->n_threads;
+
+ /* Init test data. Big buffer */
+ vec_validate (tm->connect_test_data, 1024 * 1024 - 1);
+ for (i = 0; i < vec_len (tm->connect_test_data); i++)
+ tm->connect_test_data[i] = i & 0xff;
+
+ vec_validate (tm->rx_buf, num_threads - 1);
+ for (i = 0; i < num_threads; i++)
+ vec_validate (tm->rx_buf[i], vec_len (tm->connect_test_data) - 1);
+
+ tm->is_init = 1;
+
+ vec_validate (tm->connection_index_by_thread, vtm->n_vlib_mains);
+ vec_validate (tm->connections_this_batch_by_thread, vtm->n_vlib_mains);
+ vec_validate (tm->vpp_event_queue, vtm->n_vlib_mains);
+
+ return 0;
+}
+
+static int
+builtin_session_connected_callback (u32 app_index, u32 api_context,
+ stream_session_t * s, u8 is_fail)
+{
+ tclient_main_t *tm = &tclient_main;
+ session_t *session;
+ u32 session_index;
+ u8 thread_index = vlib_get_thread_index ();
+
+ ASSERT (s->thread_index == thread_index);
+
+ if (is_fail)
+ {
+ clib_warning ("connection %d failed!", api_context);
+ signal_evt_to_cli (-1);
+ return 0;
+ }
+
+ if (!tm->vpp_event_queue[thread_index])
+ tm->vpp_event_queue[thread_index] =
+ session_manager_get_vpp_event_queue (thread_index);
+
+ /*
+ * Setup session
+ */
+ clib_spinlock_lock_if_init (&tm->sessions_lock);
+ pool_get (tm->sessions, session);
+ clib_spinlock_unlock_if_init (&tm->sessions_lock);
+
+ memset (session, 0, sizeof (*session));
+ session_index = session - tm->sessions;
+ session->bytes_to_send = tm->bytes_to_send;
+ session->bytes_to_receive = tm->no_return ? 0ULL : tm->bytes_to_send;
+ session->server_rx_fifo = s->server_rx_fifo;
+ session->server_rx_fifo->client_session_index = session_index;
+ session->server_tx_fifo = s->server_tx_fifo;
+ session->server_tx_fifo->client_session_index = session_index;
+ session->vpp_session_handle = stream_session_handle (s);
+
+ vec_add1 (tm->connection_index_by_thread[thread_index], session_index);
+ __sync_fetch_and_add (&tm->ready_connections, 1);
+ if (tm->ready_connections == tm->expected_connections)
+ {
+ tm->run_test = 1;
+ /* Signal the CLI process that the action is starting... */
+ signal_evt_to_cli (1);
+ }
+
+ return 0;
+}
+
+static void
+builtin_session_reset_callback (stream_session_t * s)
+{
+ if (s->session_state == SESSION_STATE_READY)
+ clib_warning ("Reset active connection %U", format_stream_session, s, 2);
+ stream_session_cleanup (s);
+ return;
+}
+
+static int
+builtin_session_create_callback (stream_session_t * s)
+{
+ return 0;
+}
+
+static void
+builtin_session_disconnect_callback (stream_session_t * s)
+{
+ tclient_main_t *tm = &tclient_main;
+ vnet_disconnect_args_t _a, *a = &_a;
+ a->handle = stream_session_handle (s);
+ a->app_index = tm->app_index;
+ vnet_disconnect_session (a);
+ return;
+}
+
+static int
+builtin_server_rx_callback (stream_session_t * s)
+{
+ return 0;
+}
+
+/* *INDENT-OFF* */
+static session_cb_vft_t builtin_clients = {
+ .session_reset_callback = builtin_session_reset_callback,
+ .session_connected_callback = builtin_session_connected_callback,
+ .session_accept_callback = builtin_session_create_callback,
+ .session_disconnect_callback = builtin_session_disconnect_callback,
+ .builtin_server_rx_callback = builtin_server_rx_callback
+};
+/* *INDENT-ON* */
+
+static int
+attach_builtin_test_clients_app (void)
+{
+ tclient_main_t *tm = &tclient_main;
+ vnet_app_attach_args_t _a, *a = &_a;
+ u8 segment_name[128];
+ u32 segment_name_length, prealloc_fifos;
+ u64 options[16];
+
+ segment_name_length = ARRAY_LEN (segment_name);
+
+ memset (a, 0, sizeof (*a));
+ memset (options, 0, sizeof (options));
+
+ a->api_client_index = tm->my_client_index;
+ a->segment_name = segment_name;
+ a->segment_name_length = segment_name_length;
+ a->session_cb_vft = &builtin_clients;
+
+ prealloc_fifos = tm->prealloc_fifos ? tm->expected_connections : 1;
+
+ options[SESSION_OPTIONS_ACCEPT_COOKIE] = 0x12345678;
+ options[SESSION_OPTIONS_SEGMENT_SIZE] = (2ULL << 32);
+ options[SESSION_OPTIONS_RX_FIFO_SIZE] = tm->fifo_size;
+ options[SESSION_OPTIONS_TX_FIFO_SIZE] = tm->fifo_size;
+ options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = tm->private_segment_count;
+ options[APP_OPTIONS_PRIVATE_SEGMENT_SIZE] = tm->private_segment_size;
+ options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = prealloc_fifos;
+
+ options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
+
+ a->options = options;
+
+ if (vnet_application_attach (a))
+ return -1;
+
+ tm->app_index = a->app_index;
+ return 0;
+}
+
+static void *
+tclient_thread_fn (void *arg)
+{
+ return 0;
+}
+
+/** Start a transmit thread */
+int
+start_tx_pthread (tclient_main_t * tm)
+{
+ if (tm->client_thread_handle == 0)
+ {
+ int rv = pthread_create (&tm->client_thread_handle,
+ NULL /*attr */ ,
+ tclient_thread_fn, 0);
+ if (rv)
+ {
+ tm->client_thread_handle = 0;
+ return -1;
+ }
+ }
+ return 0;
+}
+
+void
+clients_connect (vlib_main_t * vm, u8 * uri, u32 n_clients)
+{
+ tclient_main_t *tm = &tclient_main;
+ vnet_connect_args_t _a, *a = &_a;
+ int i;
+ for (i = 0; i < n_clients; i++)
+ {
+ memset (a, 0, sizeof (*a));
+
+ a->uri = (char *) uri;
+ a->api_context = i;
+ a->app_index = tm->app_index;
+ a->mp = 0;
+ vnet_connect_uri (a);
+
+ /* Crude pacing for call setups, 100k/sec */
+ vlib_process_suspend (vm, 10e-6);
+ }
+}