src/examples/vlib/mc_test.c - fdio/vpp - Gitiles

 /*
  * mc_test.c: test program for vlib mc
  *
  * Copyright (c) 2010 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 <vlib/vlib.h>
 #include <vlib/unix/mc_socket.h>
 #include <vppinfra/random.h>

 typedef struct
 {
   u32 min_n_msg_bytes;
   u32 max_n_msg_bytes;
   u32 tx_serial;
   u32 rx_serial;
   u32 seed;
   u32 verbose;
   u32 validate;
   u32 window_size;
   f64 min_delay, max_delay;
   f64 n_packets_to_send;
 } mc_test_main_t;

 always_inline u32
 choose_msg_size (mc_test_main_t * tm)
 {
   u32 r = tm->min_n_msg_bytes;
   if (tm->max_n_msg_bytes > tm->min_n_msg_bytes)
     r +=
       random_u32 (&tm->seed) % (1 + tm->max_n_msg_bytes -
 				tm->min_n_msg_bytes);
   return r;
 }

 static mc_test_main_t mc_test_main;

 static void
 serialize_test_msg (serialize_main_t * m, va_list * va)
 {
   mc_test_main_t *tm = &mc_test_main;
   u32 n_bytes = choose_msg_size (tm);
   u8 *msg;
   int i;
   serialize_integer (m, n_bytes, sizeof (n_bytes));
   msg = serialize_get (m, n_bytes);
   for (i = 0; i < n_bytes; i++)
     msg[i] = i + tm->tx_serial;
   tm->tx_serial += n_bytes;
 }

 static void
 unserialize_test_msg (serialize_main_t * m, va_list * va)
 {
   mc_test_main_t *tm = &mc_test_main;
   u32 i, n_bytes, dump_msg = tm->verbose;
   u8 *p;
   unserialize_integer (m, &n_bytes, sizeof (n_bytes));
   p = unserialize_get (m, n_bytes);
   if (tm->validate)
     for (i = 0; i < n_bytes; i++)
       if (p[i] != ((tm->rx_serial + i) & 0xff))
 	{
 	  clib_warning ("corrupt msg at offset %d", i);
 	  dump_msg = 1;
 	  break;
 	}
   if (dump_msg)
     clib_warning ("got %d bytes, %U", n_bytes, format_hex_bytes, p, n_bytes);
   tm->rx_serial += n_bytes;
 }

 MC_SERIALIZE_MSG (test_msg, static) =
 {
 .name = "test_msg",.serialize = serialize_test_msg,.unserialize =
     unserialize_test_msg,};

 #define SERIALIZE 1

 #define EVENT_JOIN_STREAM 	10
 #define EVENT_SEND_DATA 	11

 static void
 test_rx_callback (mc_main_t * mcm,
 		  mc_stream_t * stream,
 		  mc_peer_id_t peer_id, u32 buffer_index)
 {
   if (SERIALIZE)
     {
       return mc_unserialize (mcm, stream, buffer_index);
     }
   else
     {
 #if DEBUG > 1
       vlib_main_t *vm = mcm->vlib_main;
       vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index);
       u8 *dp = vlib_buffer_get_current (b);

       fformat (stdout, "RX from %U %U\n",
 	       stream->transport->format_peer_id, peer_id,
 	       format_hex_bytes, dp, tm->n_msg_bytes);

 #endif
     }
 }

 static u8 *
 test_snapshot_callback (mc_main_t * mcm,
 			u8 * data_vector, u32 last_global_sequence_processed)
 {
   if (SERIALIZE)
     {
       serialize_main_t m;

       /* Append serialized data to data vector. */
       serialize_open_vector (&m, data_vector);
       m.stream.current_buffer_index = vec_len (data_vector);

       return serialize_close_vector (&m);
     }
   else
     return format (data_vector,
 		   "snapshot, last global seq 0x%x",
 		   last_global_sequence_processed);
 }

 static void
 test_handle_snapshot_callback (mc_main_t * mcm, u8 * data, u32 n_data_bytes)
 {
   if (SERIALIZE)
     {
       serialize_main_t s;
       unserialize_open_data (&s, data, n_data_bytes);
     }
   else
     clib_warning ("snapshot `%*s'", n_data_bytes, data);
 }

 static mc_socket_main_t mc_socket_main;

 static uword
 mc_test_process (vlib_main_t * vm,
 		 vlib_node_runtime_t * node, vlib_frame_t * f)
 {
   mc_test_main_t *tm = &mc_test_main;
   mc_socket_main_t *msm = &mc_socket_main;
   mc_main_t *mcm = &msm->mc_main;
   uword event_type, *event_data = 0;
   u32 data_serial = 0, stream_index;
   f64 delay;
   mc_stream_config_t config;
   clib_error_t *error;
   int i;
   char *intfcs[] = { "eth1", "eth0", "ce" };

   clib_memset (&config, 0, sizeof (config));
   config.name = "test";
   config.window_size = tm->window_size;
   config.rx_buffer = test_rx_callback;
   config.catchup_snapshot = test_snapshot_callback;
   config.catchup = test_handle_snapshot_callback;
   stream_index = ~0;

   msm->multicast_tx_ip4_address_host_byte_order = 0xefff0100;
   msm->base_multicast_udp_port_host_byte_order = 0xffab;

   error = mc_socket_main_init (&mc_socket_main, intfcs, ARRAY_LEN (intfcs));
   if (error)
     {
       clib_error_report (error);
       exit (1);
     }

   mcm->we_can_be_relay_master = 1;

   while (1)
     {
       vlib_process_wait_for_event (vm);
       event_type = vlib_process_get_events (vm, &event_data);

       switch (event_type)
 	{
 	case EVENT_JOIN_STREAM:
 	  stream_index = mc_stream_join (mcm, &config);
 	  break;

 	case EVENT_SEND_DATA:
 	  {
 	    f64 times[2];

 	    if (stream_index == ~0)
 	      stream_index = mc_stream_join (mcm, &config);

 	    times[0] = vlib_time_now (vm);
 	    for (i = 0; i < event_data[0]; i++)
 	      {
 		u32 bi;
 		if (SERIALIZE)
 		  {
 		    mc_serialize_stream (mcm, stream_index, &test_msg,
 					 data_serial);
 		  }
 		else
 		  {
 		    u8 *mp;
 		    mp = mc_get_vlib_buffer (vm, sizeof (mp[0]), &bi);
 		    mp[0] = data_serial;
 		    mc_stream_send (mcm, stream_index, bi);
 		  }
 		if (tm->min_delay > 0)
 		  {
 		    delay =
 		      tm->min_delay +
 		      random_f64 (&tm->seed) * (tm->max_delay -
 						tm->min_delay);
 		    vlib_process_suspend (vm, delay);
 		  }
 		data_serial++;
 	      }
 	    times[1] = vlib_time_now (vm);
 	    clib_warning ("done sending %d; %.4e per sec",
 			  event_data[0],
 			  (f64) event_data[0] / (times[1] - times[0]));
 	    break;
 	  }

 	default:
 	  clib_warning ("bug");
 	  break;
 	}

       if (event_data)
 	_vec_len (event_data) = 0;
     }
 }

 /* *INDENT-OFF* */
 VLIB_REGISTER_NODE (mc_test_process_node, static) =
 {
 .function = mc_test_process,.type = VLIB_NODE_TYPE_PROCESS,.name =
     "mc-test-process",};
 /* *INDENT-ON* */

 static clib_error_t *
 mc_test_command (vlib_main_t * vm,
 		 unformat_input_t * input, vlib_cli_command_t * cmd)
 {
   f64 npkts = 10;

   if (unformat (input, "join"))
     {
       vlib_cli_output (vm, "Join stream...\n");
       vlib_process_signal_event (vm, mc_test_process_node.index,
 				 EVENT_JOIN_STREAM, 0);
       return 0;
     }
   else if (unformat (input, "send %f", &npkts) || unformat (input, "send"))
     {
       vlib_process_signal_event (vm, mc_test_process_node.index,
 				 EVENT_SEND_DATA, (uword) npkts);
       vlib_cli_output (vm, "Send %.0f pkts...\n", npkts);

       return 0;
     }
   else
     return unformat_parse_error (input);
 }

 /* *INDENT-OFF* */
 VLIB_CLI_COMMAND (test_mc_command, static) =
 {
 .path = "test mc",.short_help = "Test mc command",.function =
     mc_test_command,};
 /* *INDENT-ON* */

 static clib_error_t *
 mc_show_command (vlib_main_t * vm,
 		 unformat_input_t * input, vlib_cli_command_t * cmd)
 {
   mc_main_t *mcm = &mc_socket_main.mc_main;
   vlib_cli_output (vm, "%U", format_mc_main, mcm);
   return 0;
 }

 /* *INDENT-OFF* */
 VLIB_CLI_COMMAND (show_mc_command, static) =
 {
 .path = "show mc",.short_help = "Show mc command",.function =
     mc_show_command,};
 /* *INDENT-ON* */

 static clib_error_t *
 mc_clear_command (vlib_main_t * vm,
 		  unformat_input_t * input, vlib_cli_command_t * cmd)
 {
   mc_main_t *mcm = &mc_socket_main.mc_main;
   mc_clear_stream_stats (mcm);
   return 0;
 }

 /* *INDENT-OFF* */
 VLIB_CLI_COMMAND (clear_mc_command, static) =
 {
 .path = "clear mc",.short_help = "Clear mc command",.function =
     mc_clear_command,};
 /* *INDENT-ON* */

 static clib_error_t *
 mc_config (vlib_main_t * vm, unformat_input_t * input)
 {
   mc_test_main_t *tm = &mc_test_main;
   mc_socket_main_t *msm = &mc_socket_main;
   clib_error_t *error = 0;

   tm->min_n_msg_bytes = 4;
   tm->max_n_msg_bytes = 4;
   tm->window_size = 8;
   tm->seed = getpid ();
   tm->verbose = 0;
   tm->validate = 1;
   tm->min_delay = 10e-6;
   tm->max_delay = 10e-3;
   tm->n_packets_to_send = 0;
   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
     {
       if (unformat (input, "interface %s", &msm->multicast_interface_name))
 	;

       else if (unformat (input, "n-bytes %d", &tm->max_n_msg_bytes))
 	tm->min_n_msg_bytes = tm->max_n_msg_bytes;
       else if (unformat (input, "max-n-bytes %d", &tm->max_n_msg_bytes))
 	;
       else if (unformat (input, "min-n-bytes %d", &tm->min_n_msg_bytes))
 	;
       else if (unformat (input, "seed %d", &tm->seed))
 	;
       else if (unformat (input, "window %d", &tm->window_size))
 	;
       else if (unformat (input, "verbose"))
 	tm->verbose = 1;
       else if (unformat (input, "no-validate"))
 	tm->validate = 0;
       else if (unformat (input, "min-delay %f", &tm->min_delay))
 	;
       else if (unformat (input, "max-delay %f", &tm->max_delay))
 	;
       else if (unformat (input, "no-delay"))
 	tm->min_delay = tm->max_delay = 0;
       else if (unformat (input, "n-packets %f", &tm->n_packets_to_send))
 	;

       else
 	return clib_error_return (0, "unknown input `%U'",
 				  format_unformat_error, input);
     }

   if (tm->n_packets_to_send > 0)
     vlib_process_signal_event (vm, mc_test_process_node.index,
 			       EVENT_SEND_DATA,
 			       (uword) tm->n_packets_to_send);

   return error;
 }

 VLIB_CONFIG_FUNCTION (mc_config, "mc");

 /*
  * fd.io coding-style-patch-verification: ON
  *
  * Local Variables:
  * eval: (c-set-style "gnu")
  * End:
  */
	/*
	* mc_test.c: test program for vlib mc
	*
	* Copyright (c) 2010 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 <vlib/vlib.h>
	#include <vlib/unix/mc_socket.h>
	#include <vppinfra/random.h>

	typedef struct
	{
	u32 min_n_msg_bytes;
	u32 max_n_msg_bytes;
	u32 tx_serial;
	u32 rx_serial;
	u32 seed;
	u32 verbose;
	u32 validate;
	u32 window_size;
	f64 min_delay, max_delay;
	f64 n_packets_to_send;
	} mc_test_main_t;

	always_inline u32
	choose_msg_size (mc_test_main_t * tm)
	{
	u32 r = tm->min_n_msg_bytes;
	if (tm->max_n_msg_bytes > tm->min_n_msg_bytes)
	r +=
	random_u32 (&tm->seed) % (1 + tm->max_n_msg_bytes -
	tm->min_n_msg_bytes);
	return r;
	}

	static mc_test_main_t mc_test_main;

	static void
	serialize_test_msg (serialize_main_t * m, va_list * va)
	{
	mc_test_main_t *tm = &mc_test_main;
	u32 n_bytes = choose_msg_size (tm);
	u8 *msg;
	int i;
	serialize_integer (m, n_bytes, sizeof (n_bytes));
	msg = serialize_get (m, n_bytes);
	for (i = 0; i < n_bytes; i++)
	msg[i] = i + tm->tx_serial;
	tm->tx_serial += n_bytes;
	}

	static void
	unserialize_test_msg (serialize_main_t * m, va_list * va)
	{
	mc_test_main_t *tm = &mc_test_main;
	u32 i, n_bytes, dump_msg = tm->verbose;
	u8 *p;
	unserialize_integer (m, &n_bytes, sizeof (n_bytes));
	p = unserialize_get (m, n_bytes);
	if (tm->validate)
	for (i = 0; i < n_bytes; i++)
	if (p[i] != ((tm->rx_serial + i) & 0xff))
	{
	clib_warning ("corrupt msg at offset %d", i);
	dump_msg = 1;
	break;
	}
	if (dump_msg)
	clib_warning ("got %d bytes, %U", n_bytes, format_hex_bytes, p, n_bytes);
	tm->rx_serial += n_bytes;
	}

	MC_SERIALIZE_MSG (test_msg, static) =
	{
	.name = "test_msg",.serialize = serialize_test_msg,.unserialize =
	unserialize_test_msg,};

	#define SERIALIZE 1

	#define EVENT_JOIN_STREAM 10
	#define EVENT_SEND_DATA 11

	static void
	test_rx_callback (mc_main_t * mcm,
	mc_stream_t * stream,
	mc_peer_id_t peer_id, u32 buffer_index)
	{
	if (SERIALIZE)
	{
	return mc_unserialize (mcm, stream, buffer_index);
	}
	else
	{
	#if DEBUG > 1
	vlib_main_t *vm = mcm->vlib_main;
	vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index);
	u8 *dp = vlib_buffer_get_current (b);

	fformat (stdout, "RX from %U %U\n",
	stream->transport->format_peer_id, peer_id,
	format_hex_bytes, dp, tm->n_msg_bytes);

	#endif
	}
	}

	static u8 *
	test_snapshot_callback (mc_main_t * mcm,
	u8 * data_vector, u32 last_global_sequence_processed)
	{
	if (SERIALIZE)
	{
	serialize_main_t m;

	/* Append serialized data to data vector. */
	serialize_open_vector (&m, data_vector);
	m.stream.current_buffer_index = vec_len (data_vector);

	return serialize_close_vector (&m);
	}
	else
	return format (data_vector,
	"snapshot, last global seq 0x%x",
	last_global_sequence_processed);
	}

	static void
	test_handle_snapshot_callback (mc_main_t * mcm, u8 * data, u32 n_data_bytes)
	{
	if (SERIALIZE)
	{
	serialize_main_t s;
	unserialize_open_data (&s, data, n_data_bytes);
	}
	else
	clib_warning ("snapshot `%*s'", n_data_bytes, data);
	}

	static mc_socket_main_t mc_socket_main;

	static uword
	mc_test_process (vlib_main_t * vm,
	vlib_node_runtime_t * node, vlib_frame_t * f)
	{
	mc_test_main_t *tm = &mc_test_main;
	mc_socket_main_t *msm = &mc_socket_main;
	mc_main_t *mcm = &msm->mc_main;
	uword event_type, *event_data = 0;
	u32 data_serial = 0, stream_index;
	f64 delay;
	mc_stream_config_t config;
	clib_error_t *error;
	int i;
	char *intfcs[] = { "eth1", "eth0", "ce" };

	clib_memset (&config, 0, sizeof (config));
	config.name = "test";
	config.window_size = tm->window_size;
	config.rx_buffer = test_rx_callback;
	config.catchup_snapshot = test_snapshot_callback;
	config.catchup = test_handle_snapshot_callback;
	stream_index = ~0;

	msm->multicast_tx_ip4_address_host_byte_order = 0xefff0100;
	msm->base_multicast_udp_port_host_byte_order = 0xffab;

	error = mc_socket_main_init (&mc_socket_main, intfcs, ARRAY_LEN (intfcs));
	if (error)
	{
	clib_error_report (error);
	exit (1);
	}

	mcm->we_can_be_relay_master = 1;

	while (1)
	{
	vlib_process_wait_for_event (vm);
	event_type = vlib_process_get_events (vm, &event_data);

	switch (event_type)
	{
	case EVENT_JOIN_STREAM:
	stream_index = mc_stream_join (mcm, &config);
	break;

	case EVENT_SEND_DATA:
	{
	f64 times[2];

	if (stream_index == ~0)
	stream_index = mc_stream_join (mcm, &config);

	times[0] = vlib_time_now (vm);
	for (i = 0; i < event_data[0]; i++)
	{
	u32 bi;
	if (SERIALIZE)
	{
	mc_serialize_stream (mcm, stream_index, &test_msg,
	data_serial);
	}
	else
	{
	u8 *mp;
	mp = mc_get_vlib_buffer (vm, sizeof (mp[0]), &bi);
	mp[0] = data_serial;
	mc_stream_send (mcm, stream_index, bi);
	}
	if (tm->min_delay > 0)
	{
	delay =
	tm->min_delay +
	random_f64 (&tm->seed) * (tm->max_delay -
	tm->min_delay);
	vlib_process_suspend (vm, delay);
	}
	data_serial++;
	}
	times[1] = vlib_time_now (vm);
	clib_warning ("done sending %d; %.4e per sec",
	event_data[0],
	(f64) event_data[0] / (times[1] - times[0]));
	break;
	}

	default:
	clib_warning ("bug");
	break;
	}

	if (event_data)
	_vec_len (event_data) = 0;
	}
	}

	/* INDENT-OFF */
	VLIB_REGISTER_NODE (mc_test_process_node, static) =
	{
	.function = mc_test_process,.type = VLIB_NODE_TYPE_PROCESS,.name =
	"mc-test-process",};
	/* INDENT-ON */

	static clib_error_t *
	mc_test_command (vlib_main_t * vm,
	unformat_input_t * input, vlib_cli_command_t * cmd)
	{
	f64 npkts = 10;

	if (unformat (input, "join"))
	{
	vlib_cli_output (vm, "Join stream...\n");
	vlib_process_signal_event (vm, mc_test_process_node.index,
	EVENT_JOIN_STREAM, 0);
	return 0;
	}
	else if (unformat (input, "send %f", &npkts) \|\| unformat (input, "send"))
	{
	vlib_process_signal_event (vm, mc_test_process_node.index,
	EVENT_SEND_DATA, (uword) npkts);
	vlib_cli_output (vm, "Send %.0f pkts...\n", npkts);

	return 0;
	}
	else
	return unformat_parse_error (input);
	}

	/* INDENT-OFF */
	VLIB_CLI_COMMAND (test_mc_command, static) =
	{
	.path = "test mc",.short_help = "Test mc command",.function =
	mc_test_command,};
	/* INDENT-ON */

	static clib_error_t *
	mc_show_command (vlib_main_t * vm,
	unformat_input_t * input, vlib_cli_command_t * cmd)
	{
	mc_main_t *mcm = &mc_socket_main.mc_main;
	vlib_cli_output (vm, "%U", format_mc_main, mcm);
	return 0;
	}

	/* INDENT-OFF */
	VLIB_CLI_COMMAND (show_mc_command, static) =
	{
	.path = "show mc",.short_help = "Show mc command",.function =
	mc_show_command,};
	/* INDENT-ON */

	static clib_error_t *
	mc_clear_command (vlib_main_t * vm,
	unformat_input_t * input, vlib_cli_command_t * cmd)
	{
	mc_main_t *mcm = &mc_socket_main.mc_main;
	mc_clear_stream_stats (mcm);
	return 0;
	}

	/* INDENT-OFF */
	VLIB_CLI_COMMAND (clear_mc_command, static) =
	{
	.path = "clear mc",.short_help = "Clear mc command",.function =
	mc_clear_command,};
	/* INDENT-ON */

	static clib_error_t *
	mc_config (vlib_main_t * vm, unformat_input_t * input)
	{
	mc_test_main_t *tm = &mc_test_main;
	mc_socket_main_t *msm = &mc_socket_main;
	clib_error_t *error = 0;

	tm->min_n_msg_bytes = 4;
	tm->max_n_msg_bytes = 4;
	tm->window_size = 8;
	tm->seed = getpid ();
	tm->verbose = 0;
	tm->validate = 1;
	tm->min_delay = 10e-6;
	tm->max_delay = 10e-3;
	tm->n_packets_to_send = 0;
	while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
	{
	if (unformat (input, "interface %s", &msm->multicast_interface_name))
	;

	else if (unformat (input, "n-bytes %d", &tm->max_n_msg_bytes))
	tm->min_n_msg_bytes = tm->max_n_msg_bytes;
	else if (unformat (input, "max-n-bytes %d", &tm->max_n_msg_bytes))
	;
	else if (unformat (input, "min-n-bytes %d", &tm->min_n_msg_bytes))
	;
	else if (unformat (input, "seed %d", &tm->seed))
	;
	else if (unformat (input, "window %d", &tm->window_size))
	;
	else if (unformat (input, "verbose"))
	tm->verbose = 1;
	else if (unformat (input, "no-validate"))
	tm->validate = 0;
	else if (unformat (input, "min-delay %f", &tm->min_delay))
	;
	else if (unformat (input, "max-delay %f", &tm->max_delay))
	;
	else if (unformat (input, "no-delay"))
	tm->min_delay = tm->max_delay = 0;
	else if (unformat (input, "n-packets %f", &tm->n_packets_to_send))
	;

	else
	return clib_error_return (0, "unknown input `%U'",
	format_unformat_error, input);
	}

	if (tm->n_packets_to_send > 0)
	vlib_process_signal_event (vm, mc_test_process_node.index,
	EVENT_SEND_DATA,
	(uword) tm->n_packets_to_send);

	return error;
	}

	VLIB_CONFIG_FUNCTION (mc_config, "mc");

	/*
	* fd.io coding-style-patch-verification: ON
	*
	* Local Variables:
	* eval: (c-set-style "gnu")
	* End:
	*/