apps: refactor uri and update build infra

Change-Id: Ifa9966a27586a1a65038d069cf4a1e6e21a72d45
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 0 insertions, 1172 deletions

diff --git a/src/uri/uri_udp_test.c b/src/uri/uri_udp_test.c
deleted file mode 100644
index ac9411835ec..00000000000
--- a/src/uri/uri_udp_test.c
+++ /dev/null
@@ -1,1172 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/format.h>
-#include <vppinfra/error.h>
-#include <vppinfra/time.h>
-#include <vppinfra/macros.h>
-#include <vnet/vnet.h>
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vlibapi/api.h>
-#include <vlibmemory/api.h>
-#include <vpp/api/vpe_msg_enum.h>
-#include <svm/svm_fifo_segment.h>
-#include <pthread.h>
-#include <vnet/session/application_interface.h>
-
-#define vl_typedefs		/* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_typedefs
-
-/* declare message handlers for each api */
-
-#define vl_endianfun		/* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...)
-#define vl_printfun
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_printfun
-
-typedef enum
-{
-  STATE_START,
-  STATE_BOUND,
-  STATE_READY,
-  STATE_FAILED,
-  STATE_DISCONNECTING,
-} connection_state_t;
-
-typedef struct
-{
-  svm_fifo_t *server_rx_fifo;
-  svm_fifo_t *server_tx_fifo;
-} session_t;
-
-typedef struct
-{
-  /* vpe input queue */
-  unix_shared_memory_queue_t *vl_input_queue;
-
-  /* API client handle */
-  u32 my_client_index;
-
-  /* The URI we're playing with */
-  u8 *uri;
-
-  /* Session pool */
-  session_t *sessions;
-
-  /* Hash table for disconnect processing */
-  uword *session_index_by_vpp_handles;
-
-  /* fifo segment */
-  svm_fifo_segment_private_t *seg;
-
-  /* intermediate rx buffer */
-  u8 *rx_buf;
-
-  /* URI for connect */
-  u8 *connect_uri;
-
-  int i_am_master;
-
-  /* Our event queue */
-  unix_shared_memory_queue_t *our_event_queue;
-
-  /* $$$ single thread only for the moment */
-  unix_shared_memory_queue_t *vpp_event_queue;
-
-  /* $$$$ hack: cut-through session index */
-  volatile u32 cut_through_session_index;
-  volatile u32 connected_session;
-
-  /* unique segment name counter */
-  u32 unique_segment_index;
-
-  pid_t my_pid;
-
-  /* pthread handle */
-  pthread_t cut_through_thread_handle;
-
-  /* For deadman timers */
-  clib_time_t clib_time;
-
-  /* State of the connection, shared between msg RX thread and main thread */
-  volatile connection_state_t state;
-
-  volatile int time_to_stop;
-  volatile int time_to_print_stats;
-
-  u32 configured_segment_size;
-
-  /* VNET_API_ERROR_FOO -> "Foo" hash table */
-  uword *error_string_by_error_number;
-
-  /* convenience */
-  svm_fifo_segment_main_t *segment_main;
-
-  u8 *connect_test_data;
-} uri_udp_test_main_t;
-
-#if CLIB_DEBUG > 0
-#define NITER 10000
-#else
-#define NITER 4000000
-#endif
-
-uri_udp_test_main_t uri_udp_test_main;
-
-static void
-stop_signal (int signum)
-{
-  uri_udp_test_main_t *um = &uri_udp_test_main;
-
-  um->time_to_stop = 1;
-}
-
-static void
-stats_signal (int signum)
-{
-  uri_udp_test_main_t *um = &uri_udp_test_main;
-
-  um->time_to_print_stats = 1;
-}
-
-static clib_error_t *
-setup_signal_handlers (void)
-{
-  signal (SIGINT, stats_signal);
-  signal (SIGQUIT, stop_signal);
-  signal (SIGTERM, stop_signal);
-
-  return 0;
-}
-
-void
-application_send_attach (uri_udp_test_main_t * utm)
-{
-  vl_api_application_attach_t *bmp;
-  u32 fifo_size = 1 << 20;
-  bmp = vl_msg_api_alloc (sizeof (*bmp));
-  memset (bmp, 0, sizeof (*bmp));
-
-  bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
-  bmp->client_index = utm->my_client_index;
-  bmp->context = ntohl (0xfeedface);
-  bmp->options[APP_OPTIONS_FLAGS] =
-    APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT;
-  bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 2;
-  bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
-  bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
-  bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
-  bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
-  bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 16768;
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-void
-application_detach (uri_udp_test_main_t * utm)
-{
-  vl_api_application_detach_t *bmp;
-  bmp = vl_msg_api_alloc (sizeof (*bmp));
-  memset (bmp, 0, sizeof (*bmp));
-
-  bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
-  bmp->client_index = utm->my_client_index;
-  bmp->context = ntohl (0xfeedface);
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-static void
-vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
-					   mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  svm_fifo_segment_create_args_t _a, *a = &_a;
-  int rv;
-
-  if (mp->retval)
-    {
-      clib_warning ("attach failed: %d", mp->retval);
-      utm->state = STATE_FAILED;
-      return;
-    }
-
-  if (mp->segment_name_length == 0)
-    {
-      clib_warning ("segment_name_length zero");
-      return;
-    }
-
-  a->segment_name = (char *) mp->segment_name;
-  a->segment_size = mp->segment_size;
-
-  ASSERT (mp->app_event_queue_address);
-
-  /* Attach to the segment vpp created */
-  rv = svm_fifo_segment_attach (a);
-  if (rv)
-    {
-      clib_warning ("svm_fifo_segment_attach ('%s') failed",
-		    mp->segment_name);
-      return;
-    }
-
-  utm->our_event_queue =
-    uword_to_pointer (mp->app_event_queue_address,
-		      unix_shared_memory_queue_t *);
-}
-
-static void
-vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
-					   mp)
-{
-  if (mp->retval)
-    clib_warning ("detach returned with err: %d", mp->retval);
-}
-
-u8 *
-format_api_error (u8 * s, va_list * args)
-{
-  uri_udp_test_main_t *utm = va_arg (*args, uri_udp_test_main_t *);
-  i32 error = va_arg (*args, u32);
-  uword *p;
-
-  p = hash_get (utm->error_string_by_error_number, -error);
-
-  if (p)
-    s = format (s, "%s", p[0]);
-  else
-    s = format (s, "%d", error);
-  return s;
-}
-
-int
-wait_for_state_change (uri_udp_test_main_t * utm, connection_state_t state)
-{
-#if CLIB_DEBUG > 0
-#define TIMEOUT 600.0
-#else
-#define TIMEOUT 600.0
-#endif
-
-  f64 timeout = clib_time_now (&utm->clib_time) + TIMEOUT;
-
-  while (clib_time_now (&utm->clib_time) < timeout)
-    {
-      if (utm->state == state)
-	return 0;
-    }
-  return -1;
-}
-
-u64 server_bytes_received, server_bytes_sent;
-
-static void *
-cut_through_thread_fn (void *arg)
-{
-  session_t *s;
-  svm_fifo_t *rx_fifo;
-  svm_fifo_t *tx_fifo;
-  u8 *my_copy_buffer = 0;
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  i32 actual_transfer;
-  int rv;
-  u32 buffer_offset;
-
-  while (utm->cut_through_session_index == ~0)
-    ;
-
-  s = pool_elt_at_index (utm->sessions, utm->cut_through_session_index);
-
-  rx_fifo = s->server_rx_fifo;
-  tx_fifo = s->server_tx_fifo;
-
-  vec_validate (my_copy_buffer, 64 * 1024 - 1);
-
-  while (true)
-    {
-      /* We read from the tx fifo and write to the rx fifo */
-      do
-	{
-	  actual_transfer = svm_fifo_dequeue_nowait (tx_fifo,
-						     vec_len (my_copy_buffer),
-						     my_copy_buffer);
-	}
-      while (actual_transfer <= 0);
-
-      server_bytes_received += actual_transfer;
-
-      buffer_offset = 0;
-      while (actual_transfer > 0)
-	{
-	  rv = svm_fifo_enqueue_nowait (rx_fifo, actual_transfer,
-					my_copy_buffer + buffer_offset);
-	  if (rv > 0)
-	    {
-	      actual_transfer -= rv;
-	      buffer_offset += rv;
-	      server_bytes_sent += rv;
-	    }
-
-	}
-      if (PREDICT_FALSE (utm->time_to_stop))
-	break;
-    }
-
-  pthread_exit (0);
-}
-
-static void
-udp_client_connect (uri_udp_test_main_t * utm)
-{
-  vl_api_connect_uri_t *cmp;
-  cmp = vl_msg_api_alloc (sizeof (*cmp));
-  memset (cmp, 0, sizeof (*cmp));
-
-  cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
-  cmp->client_index = utm->my_client_index;
-  cmp->context = ntohl (0xfeedface);
-  memcpy (cmp->uri, utm->connect_uri, vec_len (utm->connect_uri));
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & cmp);
-}
-
-static void
-client_send_cut_through (uri_udp_test_main_t * utm, session_t * session)
-{
-  int i;
-  u8 *test_data = 0;
-  u64 bytes_received = 0, bytes_sent = 0;
-  i32 bytes_to_read;
-  int rv;
-  f64 before, after, delta, bytes_per_second;
-  svm_fifo_t *rx_fifo, *tx_fifo;
-  int buffer_offset, bytes_to_send = 0;
-
-  /*
-   * Prepare test data
-   */
-  vec_validate (test_data, 64 * 1024 - 1);
-  for (i = 0; i < vec_len (test_data); i++)
-    test_data[i] = i & 0xff;
-
-  rx_fifo = session->server_rx_fifo;
-  tx_fifo = session->server_tx_fifo;
-
-  before = clib_time_now (&utm->clib_time);
-
-  vec_validate (utm->rx_buf, vec_len (test_data) - 1);
-
-  for (i = 0; i < NITER; i++)
-    {
-      bytes_to_send = vec_len (test_data);
-      buffer_offset = 0;
-      while (bytes_to_send > 0)
-	{
-	  rv = svm_fifo_enqueue_nowait (tx_fifo, bytes_to_send,
-					test_data + buffer_offset);
-
-	  if (rv > 0)
-	    {
-	      bytes_to_send -= rv;
-	      buffer_offset += rv;
-	      bytes_sent += rv;
-	    }
-	}
-
-      bytes_to_read = svm_fifo_max_dequeue (rx_fifo);
-      bytes_to_read = vec_len (utm->rx_buf) > bytes_to_read ?
-	bytes_to_read : vec_len (utm->rx_buf);
-
-      buffer_offset = 0;
-      while (bytes_to_read > 0)
-	{
-	  rv = svm_fifo_dequeue_nowait (rx_fifo,
-					bytes_to_read,
-					utm->rx_buf + buffer_offset);
-	  if (rv > 0)
-	    {
-	      bytes_to_read -= rv;
-	      buffer_offset += rv;
-	      bytes_received += rv;
-	    }
-	}
-    }
-  while (bytes_received < bytes_sent)
-    {
-      rv =
-	svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf), utm->rx_buf);
-      if (rv > 0)
-	{
-#if CLIB_DEBUG > 0
-	  int j;
-	  for (j = 0; j < rv; j++)
-	    {
-	      if (utm->rx_buf[j] != ((bytes_received + j) & 0xff))
-		{
-		  clib_warning ("error at byte %lld, 0x%x not 0x%x",
-				bytes_received + j,
-				utm->rx_buf[j],
-				((bytes_received + j) & 0xff));
-		}
-	    }
-#endif
-	  bytes_received += (u64) rv;
-	}
-    }
-
-  after = clib_time_now (&utm->clib_time);
-  delta = after - before;
-  bytes_per_second = 0.0;
-
-  if (delta > 0.0)
-    bytes_per_second = (f64) bytes_received / delta;
-
-  fformat (stdout,
-	   "Done: %lld recv bytes in %.2f seconds, %.2f bytes/sec...\n\n",
-	   bytes_received, delta, bytes_per_second);
-  fformat (stdout,
-	   "Done: %lld sent bytes in %.2f seconds, %.2f bytes/sec...\n\n",
-	   bytes_sent, delta, bytes_per_second);
-  fformat (stdout,
-	   "client -> server -> client round trip: %.2f Gbit/sec \n\n",
-	   (bytes_per_second * 8.0) / 1e9);
-}
-
-static void
-send_test_chunk (uri_udp_test_main_t * utm, svm_fifo_t * tx_fifo, int mypid,
-		 u32 bytes)
-{
-  u8 *test_data = utm->connect_test_data;
-  u64 bytes_sent = 0;
-  int test_buf_offset = 0;
-  u32 bytes_to_snd;
-  u32 queue_max_chunk = 128 << 10, actual_write;
-  session_fifo_event_t evt;
-  int rv;
-
-  bytes_to_snd = (bytes == 0) ? vec_len (test_data) : bytes;
-  if (bytes_to_snd > vec_len (test_data))
-    bytes_to_snd = vec_len (test_data);
-
-  while (bytes_to_snd > 0 && !utm->time_to_stop)
-    {
-      actual_write = (bytes_to_snd > queue_max_chunk) ?
-	queue_max_chunk : bytes_to_snd;
-      rv = svm_fifo_enqueue_nowait (tx_fifo, actual_write,
-				    test_data + test_buf_offset);
-
-      if (rv > 0)
-	{
-	  bytes_to_snd -= rv;
-	  test_buf_offset += rv;
-	  bytes_sent += rv;
-
-	  if (svm_fifo_set_event (tx_fifo))
-	    {
-	      /* Fabricate TX event, send to vpp */
-	      evt.fifo = tx_fifo;
-	      evt.event_type = FIFO_EVENT_APP_TX;
-
-	      unix_shared_memory_queue_add (utm->vpp_event_queue,
-					    (u8 *) & evt,
-					    0 /* do wait for mutex */ );
-	    }
-	}
-    }
-}
-
-static void
-recv_test_chunk (uri_udp_test_main_t * utm, session_t * session)
-{
-  svm_fifo_t *rx_fifo;
-  int buffer_offset, bytes_to_read = 0, rv;
-
-  rx_fifo = session->server_rx_fifo;
-  bytes_to_read = svm_fifo_max_dequeue (rx_fifo);
-  bytes_to_read =
-    vec_len (utm->rx_buf) > bytes_to_read ?
-    bytes_to_read : vec_len (utm->rx_buf);
-
-  buffer_offset = 0;
-  while (bytes_to_read > 0)
-    {
-      rv = svm_fifo_dequeue_nowait (rx_fifo, bytes_to_read,
-				    utm->rx_buf + buffer_offset);
-      if (rv > 0)
-	{
-	  bytes_to_read -= rv;
-	  buffer_offset += rv;
-	}
-    }
-}
-
-void
-client_send_data (uri_udp_test_main_t * utm)
-{
-  u8 *test_data;
-  int mypid = getpid ();
-  session_t *session;
-  svm_fifo_t *tx_fifo;
-  u32 n_iterations;
-  int i;
-
-  vec_validate (utm->connect_test_data, 64 * 1024 - 1);
-  for (i = 0; i < vec_len (utm->connect_test_data); i++)
-    utm->connect_test_data[i] = i & 0xff;
-
-  test_data = utm->connect_test_data;
-  session = pool_elt_at_index (utm->sessions, utm->connected_session);
-  tx_fifo = session->server_tx_fifo;
-
-  ASSERT (vec_len (test_data) > 0);
-
-  vec_validate (utm->rx_buf, vec_len (test_data) - 1);
-  n_iterations = NITER;
-
-  for (i = 0; i < n_iterations; i++)
-    {
-      send_test_chunk (utm, tx_fifo, mypid, 0);
-      recv_test_chunk (utm, session);
-      if (utm->time_to_stop)
-	break;
-    }
-
-  f64 timeout = clib_time_now (&utm->clib_time) + 5;
-  while (clib_time_now (&utm->clib_time) < timeout)
-    {
-      recv_test_chunk (utm, session);
-    }
-
-}
-
-static void
-client_test (uri_udp_test_main_t * utm)
-{
-  session_t *session;
-
-  application_send_attach (utm);
-  udp_client_connect (utm);
-
-  if (wait_for_state_change (utm, STATE_READY))
-    {
-      clib_warning ("timeout waiting for STATE_READY");
-      return;
-    }
-
-  if (utm->cut_through_session_index != ~0)
-    {
-      session = pool_elt_at_index (utm->sessions,
-				   utm->cut_through_session_index);
-      client_send_cut_through (utm, session);
-    }
-  else
-    {
-      session = pool_elt_at_index (utm->sessions, utm->connected_session);
-      client_send_data (utm);
-    }
-
-  application_detach (utm);
-}
-
-static void
-vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-
-  if (mp->retval)
-    {
-      clib_warning ("bind failed: %d", mp->retval);
-      utm->state = STATE_FAILED;
-      return;
-    }
-
-  utm->state = STATE_BOUND;
-}
-
-static void
-vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
-{
-  svm_fifo_segment_create_args_t _a, *a = &_a;
-  int rv;
-
-  memset (a, 0, sizeof (*a));
-  a->segment_name = (char *) mp->segment_name;
-  a->segment_size = mp->segment_size;
-  /* Attach to the segment vpp created */
-  rv = svm_fifo_segment_attach (a);
-  if (rv)
-    {
-      clib_warning ("svm_fifo_segment_attach ('%s') failed",
-		    mp->segment_name);
-      return;
-    }
-  clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
-		mp->segment_size);
-}
-
-/**
- * Acting as server for redirected connect requests
- */
-static void
-vl_api_connect_uri_t_handler (vl_api_connect_uri_t * mp)
-{
-  u32 segment_index;
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
-  svm_fifo_segment_create_args_t _a, *a = &_a;
-  svm_fifo_segment_private_t *seg;
-  unix_shared_memory_queue_t *client_q;
-  vl_api_connect_session_reply_t *rmp;
-  session_t *session = 0;
-  int rv = 0;
-
-  /* Create the segment */
-  a->segment_name = (char *) format (0, "%d:segment%d%c", utm->my_pid,
-				     utm->unique_segment_index++, 0);
-  a->segment_size = utm->configured_segment_size;
-
-  rv = svm_fifo_segment_create (a);
-  if (rv)
-    {
-      clib_warning ("sm_fifo_segment_create ('%s') failed", a->segment_name);
-      rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED;
-      goto send_reply;
-    }
-
-  vec_add2 (utm->seg, seg, 1);
-
-  segment_index = vec_len (sm->segments) - 1;
-  memcpy (seg, sm->segments + segment_index, sizeof (utm->seg[0]));
-
-  pool_get (utm->sessions, session);
-
-  session->server_rx_fifo = svm_fifo_segment_alloc_fifo
-    (utm->seg, 128 * 1024, FIFO_SEGMENT_RX_FREELIST);
-  ASSERT (session->server_rx_fifo);
-
-  session->server_tx_fifo = svm_fifo_segment_alloc_fifo
-    (utm->seg, 128 * 1024, FIFO_SEGMENT_TX_FREELIST);
-  ASSERT (session->server_tx_fifo);
-
-  session->server_rx_fifo->master_session_index = session - utm->sessions;
-  session->server_tx_fifo->master_session_index = session - utm->sessions;
-  utm->cut_through_session_index = session - utm->sessions;
-
-  rv = pthread_create (&utm->cut_through_thread_handle,
-		       NULL /*attr */ , cut_through_thread_fn, 0);
-  if (rv)
-    {
-      clib_warning ("pthread_create returned %d", rv);
-      rv = VNET_API_ERROR_SYSCALL_ERROR_1;
-    }
-
-send_reply:
-  rmp = vl_msg_api_alloc (sizeof (*rmp));
-  memset (rmp, 0, sizeof (*rmp));
-
-  rmp->_vl_msg_id = ntohs (VL_API_CONNECT_SESSION_REPLY);
-  rmp->context = mp->context;
-  rmp->retval = ntohl (rv);
-  rmp->segment_name_length = vec_len (a->segment_name);
-  if (session)
-    {
-      rmp->server_rx_fifo = pointer_to_uword (session->server_rx_fifo);
-      rmp->server_tx_fifo = pointer_to_uword (session->server_tx_fifo);
-    }
-
-  memcpy (rmp->segment_name, a->segment_name, vec_len (a->segment_name));
-
-  vec_free (a->segment_name);
-
-  client_q =
-    uword_to_pointer (mp->client_queue_address, unix_shared_memory_queue_t *);
-  vl_msg_api_send_shmem (client_q, (u8 *) & rmp);
-}
-
-static void
-vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-
-  if (mp->retval != 0)
-    clib_warning ("returned %d", ntohl (mp->retval));
-
-  utm->state = STATE_START;
-}
-
-static void
-vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  vl_api_accept_session_reply_t *rmp;
-  svm_fifo_t *rx_fifo, *tx_fifo;
-  session_t *session;
-  static f64 start_time;
-
-  if (start_time == 0.0)
-    start_time = clib_time_now (&utm->clib_time);
-
-  utm->vpp_event_queue =
-    uword_to_pointer (mp->vpp_event_queue_address,
-		      unix_shared_memory_queue_t *);
-
-  pool_get (utm->sessions, session);
-
-  rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
-  rx_fifo->client_session_index = session - utm->sessions;
-  tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
-  tx_fifo->client_session_index = session - utm->sessions;
-
-  session->server_rx_fifo = rx_fifo;
-  session->server_tx_fifo = tx_fifo;
-
-  hash_set (utm->session_index_by_vpp_handles, mp->handle,
-	    session - utm->sessions);
-
-  if (pool_elts (utm->sessions) && (pool_elts (utm->sessions) % 20000) == 0)
-    {
-      f64 now = clib_time_now (&utm->clib_time);
-      fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
-	       pool_elts (utm->sessions), now - start_time,
-	       (f64) pool_elts (utm->sessions) / (now - start_time));
-    }
-
-  rmp = vl_msg_api_alloc (sizeof (*rmp));
-  memset (rmp, 0, sizeof (*rmp));
-  rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
-  rmp->handle = mp->handle;
-  rmp->context = mp->context;
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
-
-  CLIB_MEMORY_BARRIER ();
-  utm->state = STATE_READY;
-}
-
-static void
-vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  session_t *session;
-  vl_api_disconnect_session_reply_t *rmp;
-  uword *p;
-  int rv = 0;
-
-  p = hash_get (utm->session_index_by_vpp_handles, mp->handle);
-
-  if (p)
-    {
-      session = pool_elt_at_index (utm->sessions, p[0]);
-      hash_unset (utm->session_index_by_vpp_handles, mp->handle);
-      pool_put (utm->sessions, session);
-    }
-  else
-    {
-      clib_warning ("couldn't find session key %llx", mp->handle);
-      rv = -11;
-    }
-
-  rmp = vl_msg_api_alloc (sizeof (*rmp));
-  memset (rmp, 0, sizeof (*rmp));
-  rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
-  rmp->retval = rv;
-  rmp->handle = mp->handle;
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
-}
-
-static void
-vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  session_t *session;
-
-  ASSERT (utm->i_am_master == 0);
-
-  if (mp->retval)
-    {
-      clib_warning ("failed connect");
-      return;
-    }
-
-  /* We've been redirected */
-  if (mp->segment_name_length > 0)
-    {
-      svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
-      svm_fifo_segment_create_args_t _a, *a = &_a;
-      u32 segment_index;
-      svm_fifo_segment_private_t *seg;
-      int rv;
-
-      memset (a, 0, sizeof (*a));
-      a->segment_name = (char *) mp->segment_name;
-
-      sleep (1);
-
-      rv = svm_fifo_segment_attach (a);
-      if (rv)
-	{
-	  clib_warning ("sm_fifo_segment_create ('%v') failed",
-			mp->segment_name);
-	  return;
-	}
-
-      segment_index = a->new_segment_indices[0];
-      vec_add2 (utm->seg, seg, 1);
-      memcpy (seg, sm->segments + segment_index, sizeof (*seg));
-      sleep (1);
-    }
-
-  pool_get (utm->sessions, session);
-  session->server_rx_fifo = uword_to_pointer (mp->server_rx_fifo,
-					      svm_fifo_t *);
-  ASSERT (session->server_rx_fifo);
-  session->server_tx_fifo = uword_to_pointer (mp->server_tx_fifo,
-					      svm_fifo_t *);
-  ASSERT (session->server_tx_fifo);
-
-  if (mp->segment_name_length > 0)
-    utm->cut_through_session_index = session - utm->sessions;
-  else
-    {
-      utm->connected_session = session - utm->sessions;
-      utm->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
-					       unix_shared_memory_queue_t *);
-    }
-  utm->state = STATE_READY;
-}
-
-#define foreach_uri_msg                         	\
-_(BIND_URI_REPLY, bind_uri_reply)               	\
-_(CONNECT_URI, connect_uri)                     	\
-_(CONNECT_SESSION_REPLY, connect_session_reply)       	\
-_(UNBIND_URI_REPLY, unbind_uri_reply)           	\
-_(ACCEPT_SESSION, accept_session)			\
-_(DISCONNECT_SESSION, disconnect_session)		\
-_(MAP_ANOTHER_SEGMENT, map_another_segment)		\
-_(APPLICATION_ATTACH_REPLY, application_attach_reply)	\
-_(APPLICATION_DETACH_REPLY, application_detach_reply)	\
-
-void
-uri_api_hookup (uri_udp_test_main_t * utm)
-{
-#define _(N,n)                                                  \
-    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
-                           vl_api_##n##_t_handler,              \
-                           vl_noop_handler,                     \
-                           vl_api_##n##_t_endian,               \
-                           vl_api_##n##_t_print,                \
-                           sizeof(vl_api_##n##_t), 1);
-  foreach_uri_msg;
-#undef _
-
-}
-
-int
-connect_to_vpp (char *name)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  api_main_t *am = &api_main;
-
-  if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
-    return -1;
-
-  utm->vl_input_queue = am->shmem_hdr->vl_input_queue;
-  utm->my_client_index = am->my_client_index;
-
-  return 0;
-}
-
-void
-vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
-{
-  clib_warning ("BUG");
-}
-
-static void
-init_error_string_table (uri_udp_test_main_t * utm)
-{
-  utm->error_string_by_error_number = hash_create (0, sizeof (uword));
-
-#define _(n,v,s) hash_set (utm->error_string_by_error_number, -v, s);
-  foreach_vnet_api_error;
-#undef _
-
-  hash_set (utm->error_string_by_error_number, 99, "Misc");
-}
-
-void
-server_handle_fifo_event_rx (uri_udp_test_main_t * utm,
-			     session_fifo_event_t * e)
-{
-  svm_fifo_t *rx_fifo, *tx_fifo;
-  int nbytes;
-  session_fifo_event_t evt;
-  unix_shared_memory_queue_t *q;
-  int rv;
-
-  rx_fifo = e->fifo;
-  tx_fifo = utm->sessions[rx_fifo->client_session_index].server_tx_fifo;
-  svm_fifo_unset_event (rx_fifo);
-
-  do
-    {
-      nbytes = svm_fifo_dequeue_nowait (rx_fifo, vec_len (utm->rx_buf),
-					utm->rx_buf);
-    }
-  while (nbytes <= 0);
-  do
-    {
-      rv = svm_fifo_enqueue_nowait (tx_fifo, nbytes, utm->rx_buf);
-    }
-  while (rv == -2);
-
-  if (svm_fifo_set_event (tx_fifo))
-    {
-      /* Fabricate TX event, send to vpp */
-      evt.fifo = tx_fifo;
-      evt.event_type = FIFO_EVENT_APP_TX;
-      q = utm->vpp_event_queue;
-      unix_shared_memory_queue_add (q, (u8 *) & evt,
-				    0 /* do wait for mutex */ );
-    }
-}
-
-void
-server_handle_event_queue (uri_udp_test_main_t * utm)
-{
-  session_fifo_event_t _e, *e = &_e;
-
-  while (utm->state != STATE_READY)
-    sleep (5);
-
-  while (1)
-    {
-      unix_shared_memory_queue_sub (utm->our_event_queue, (u8 *) e,
-				    0 /* nowait */ );
-      switch (e->event_type)
-	{
-	case FIFO_EVENT_APP_RX:
-	  server_handle_fifo_event_rx (utm, e);
-	  break;
-
-	case FIFO_EVENT_DISCONNECT:
-	  return;
-
-	default:
-	  clib_warning ("unknown event type %d", e->event_type);
-	  break;
-	}
-      if (PREDICT_FALSE (utm->time_to_stop == 1))
-	return;
-      if (PREDICT_FALSE (utm->time_to_print_stats == 1))
-	{
-	  utm->time_to_print_stats = 0;
-	  fformat (stdout, "%d connections\n", pool_elts (utm->sessions));
-	}
-    }
-}
-
-static void
-server_unbind (uri_udp_test_main_t * utm)
-{
-  vl_api_unbind_uri_t *ump;
-
-  ump = vl_msg_api_alloc (sizeof (*ump));
-  memset (ump, 0, sizeof (*ump));
-
-  ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
-  ump->client_index = utm->my_client_index;
-  memcpy (ump->uri, utm->uri, vec_len (utm->uri));
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & ump);
-}
-
-static void
-server_bind (uri_udp_test_main_t * utm)
-{
-  vl_api_bind_uri_t *bmp;
-
-  bmp = vl_msg_api_alloc (sizeof (*bmp));
-  memset (bmp, 0, sizeof (*bmp));
-
-  bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
-  bmp->client_index = utm->my_client_index;
-  bmp->context = ntohl (0xfeedface);
-  memcpy (bmp->uri, utm->uri, vec_len (utm->uri));
-  vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-void
-udp_server_test (uri_udp_test_main_t * utm)
-{
-
-  application_send_attach (utm);
-
-  /* Bind to uri */
-  server_bind (utm);
-
-  if (wait_for_state_change (utm, STATE_BOUND))
-    {
-      clib_warning ("timeout waiting for STATE_BOUND");
-      return;
-    }
-
-  server_handle_event_queue (utm);
-
-  /* Cleanup */
-  server_unbind (utm);
-
-  if (wait_for_state_change (utm, STATE_START))
-    {
-      clib_warning ("timeout waiting for STATE_START");
-      return;
-    }
-
-  application_detach (utm);
-
-  fformat (stdout, "Test complete...\n");
-}
-
-int
-main (int argc, char **argv)
-{
-  uri_udp_test_main_t *utm = &uri_udp_test_main;
-  unformat_input_t _argv, *a = &_argv;
-  u8 *chroot_prefix;
-  u8 *heap;
-  u8 *bind_name = (u8 *) "udp://0.0.0.0/1234";
-  u32 tmp;
-  mheap_t *h;
-  session_t *session;
-  int i;
-  int i_am_master = 1;
-
-  clib_mem_init (0, 256 << 20);
-
-  heap = clib_mem_get_per_cpu_heap ();
-  h = mheap_header (heap);
-
-  /* make the main heap thread-safe */
-  h->flags |= MHEAP_FLAG_THREAD_SAFE;
-
-  vec_validate (utm->rx_buf, 8192);
-
-  utm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
-
-  utm->my_pid = getpid ();
-  utm->configured_segment_size = 1 << 20;
-
-  clib_time_init (&utm->clib_time);
-  init_error_string_table (utm);
-  svm_fifo_segment_init (0x200000000ULL, 20);
-  unformat_init_command_line (a, argv);
-
-  while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (a, "chroot prefix %s", &chroot_prefix))
-	{
-	  vl_set_memory_root_path ((char *) chroot_prefix);
-	}
-      else if (unformat (a, "uri %s", &bind_name))
-	;
-      else if (unformat (a, "segment-size %dM", &tmp))
-	utm->configured_segment_size = tmp << 20;
-      else if (unformat (a, "segment-size %dG", &tmp))
-	utm->configured_segment_size = tmp << 30;
-      else if (unformat (a, "master"))
-	i_am_master = 1;
-      else if (unformat (a, "slave"))
-	i_am_master = 0;
-      else
-	{
-	  fformat (stderr, "%s: usage [master|slave]\n");
-	  exit (1);
-	}
-    }
-
-  utm->cut_through_session_index = ~0;
-  utm->uri = format (0, "%s%c", bind_name, 0);
-  utm->i_am_master = i_am_master;
-  utm->segment_main = &svm_fifo_segment_main;
-
-  utm->connect_uri = format (0, "udp://6.0.1.2/1234%c", 0);
-
-  setup_signal_handlers ();
-
-  uri_api_hookup (utm);
-
-  if (connect_to_vpp (i_am_master ? "uri_udp_master" : "uri_udp_slave") < 0)
-    {
-      svm_region_exit ();
-      fformat (stderr, "Couldn't connect to vpe, exiting...\n");
-      exit (1);
-    }
-
-  if (i_am_master == 0)
-    {
-      client_test (utm);
-      exit (0);
-    }
-
-  /* $$$$ hack preallocation */
-  for (i = 0; i < 200000; i++)
-    {
-      pool_get (utm->sessions, session);
-      memset (session, 0, sizeof (*session));
-    }
-  for (i = 0; i < 200000; i++)
-    pool_put_index (utm->sessions, i);
-
-  udp_server_test (utm);
-
-  vl_client_disconnect_from_vlib ();
-  exit (0);
-}
-
-#undef vl_api_version
-#define vl_api_version(n,v) static u32 vpe_api_version = v;
-#include <vpp/api/vpe.api.h>
-#undef vl_api_version
-
-void
-vl_client_add_api_signatures (vl_api_memclnt_create_t * mp)
-{
-  /*
-   * Send the main API signature in slot 0. This bit of code must
-   * match the checks in ../vpe/api/api.c: vl_msg_api_version_check().
-   */
-  mp->api_versions[0] = clib_host_to_net_u32 (vpe_api_version);
-}
-
-u32
-vl (void *p)
-{
-  return vec_len (p);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */