2 This file is part of GNUnet.
3 (C) 2011, 2012 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file testbed/gnunet-testbed-profiler.c
23 * @brief Profiling driver for the testbed.
24 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
28 #include "gnunet_common.h"
29 #include "gnunet_testbed_service.h"
30 #include "testbed_api_hosts.h"
33 * Generic loggins shorthand
35 #define LOG(kind,...) \
36 GNUNET_log_from (kind, "testbed-api-testbed", __VA_ARGS__)
44 * The testbed operation handle
46 struct GNUNET_TESTBED_Operation *op;
54 * The next pointer for DLL
56 struct DLLOperation *next;
59 * The prev pointer for DLL
61 struct DLLOperation *prev;
66 * Availanle states during profiling
78 STATE_SLAVES_STARTING,
93 * An array of hosts loaded from the hostkeys file
95 static struct GNUNET_TESTBED_Host **hosts;
98 * The array of peers; we fill this as the peers are given to us by the testbed
100 static struct GNUNET_TESTBED_Peer **peers;
103 /* * Operation handle */
105 /* static struct GNUNET_TESTBED_Operation *op; */
108 * Host registration handle
110 static struct GNUNET_TESTBED_HostRegistrationHandle *reg_handle;
113 * Handle to the master controller process
115 struct GNUNET_TESTBED_ControllerProc *mc_proc;
118 * Handle to the master controller
120 struct GNUNET_TESTBED_Controller *mc;
123 * Handle to global configuration
125 struct GNUNET_CONFIGURATION_Handle *cfg;
128 * Head of the operations list
130 struct DLLOperation *dll_op_head;
133 * Tail of the operations list
135 struct DLLOperation *dll_op_tail;
138 * Abort task identifier
140 static GNUNET_SCHEDULER_TaskIdentifier abort_task;
143 * Host registration task identifier
145 static GNUNET_SCHEDULER_TaskIdentifier register_hosts_task;
148 * Global event mask for all testbed events
153 * The starting time of a profiling step
155 struct GNUNET_TIME_Absolute prof_start_time;
158 * Duration profiling step has taken
160 struct GNUNET_TIME_Relative prof_time;
165 unsigned int peer_id;
168 * Number of peers to be started by the profiler
170 static unsigned int num_peers;
173 * Number of hosts in the hosts array
175 static unsigned int num_hosts;
178 * Global testing status
183 * current state of profiling
192 * @param tc the task context
195 do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
197 struct DLLOperation *dll_op;
200 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
201 GNUNET_SCHEDULER_cancel (abort_task);
202 if (GNUNET_SCHEDULER_NO_TASK != register_hosts_task)
203 GNUNET_SCHEDULER_cancel (register_hosts_task);
204 if (NULL != reg_handle)
205 GNUNET_TESTBED_cancel_registration (reg_handle);
206 for (nhost = 0; nhost < num_hosts; nhost++)
207 if (NULL != hosts[nhost])
208 GNUNET_TESTBED_host_destroy (hosts[nhost]);
209 GNUNET_free_non_null (hosts);
210 while (NULL != (dll_op = dll_op_head))
212 GNUNET_TESTBED_operation_cancel (dll_op->op);
213 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
214 GNUNET_free (dll_op);
217 GNUNET_TESTBED_controller_disconnect (mc);
219 GNUNET_TESTBED_controller_stop (mc_proc);
221 GNUNET_CONFIGURATION_destroy (cfg);
222 GNUNET_SCHEDULER_shutdown (); /* Stop scheduler to shutdown testbed run */
227 * abort task to run on test timed out
230 * @param tc the task context
233 do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
235 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Aborting\n");
236 abort_task = GNUNET_SCHEDULER_NO_TASK;
237 result = GNUNET_SYSERR;
238 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
243 * Functions of this signature are called when a peer has been successfully
246 * @param cls the closure from GNUNET_TESTBED_peer_create()
247 * @param peer the handle for the created peer; NULL on any error during
249 * @param emsg NULL if peer is not NULL; else MAY contain the error description
252 peer_create_cb (void *cls, struct GNUNET_TESTBED_Peer *peer, const char *emsg)
254 struct DLLOperation *dll_op = cls;
255 struct GNUNET_TESTBED_Peer **peer_ptr;
256 static unsigned int created_peers;
257 unsigned int peer_cnt;
261 LOG (GNUNET_ERROR_TYPE_WARNING,
262 _("Creating a peer failed. Error: %s\n"), emsg);
263 GNUNET_TESTBED_operation_done (dll_op->op);
264 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
265 GNUNET_free (dll_op);
266 GNUNET_SCHEDULER_cancel (abort_task);
267 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
270 peer_ptr = dll_op->cls;
271 GNUNET_assert (NULL == *peer_ptr);
273 GNUNET_TESTBED_operation_done (dll_op->op);
274 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
275 GNUNET_free (dll_op);
276 if (++created_peers == num_peers)
278 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
279 printf ("All peers created successfully in %.2f seconds\n",
280 ((double) prof_time.rel_value) / 1000.00);
281 /* Now peers are to be started */
282 state = STATE_PEERS_STARTING;
283 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
285 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
286 dll_op->op = GNUNET_TESTBED_peer_start (NULL, peers[peer_cnt], NULL, NULL);
287 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
294 * Controller event callback
297 * @param event the controller event
300 controller_event_cb (void *cls,
301 const struct GNUNET_TESTBED_EventInformation *event)
303 struct DLLOperation *dll_op;
304 struct GNUNET_TESTBED_Operation *op;
308 case STATE_SLAVES_STARTING:
311 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
313 static unsigned int slaves_started;
314 unsigned int peer_cnt;
316 dll_op = event->details.operation_finished.op_cls;
317 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
318 GNUNET_free (dll_op);
319 op = event->details.operation_finished.operation;
320 if (NULL != event->details.operation_finished.emsg)
322 LOG (GNUNET_ERROR_TYPE_WARNING,
323 _("An operation has failed while starting slaves\n"));
324 GNUNET_TESTBED_operation_done (op);
325 GNUNET_SCHEDULER_cancel (abort_task);
326 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
329 GNUNET_TESTBED_operation_done (op);
330 /* Proceed to start peers */
331 if (++slaves_started == num_hosts - 1)
333 printf ("All slaves started successfully\n");
334 state = STATE_PEERS_CREATING;
335 prof_start_time = GNUNET_TIME_absolute_get ();
336 peers = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Peer *)
338 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
340 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
341 dll_op->cls = &peers[peer_cnt];
342 dll_op->op = GNUNET_TESTBED_peer_create (mc,
344 [peer_cnt % num_hosts],
348 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
357 case STATE_PEERS_STARTING:
360 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
361 /* Control reaches here when peer start fails */
364 case GNUNET_TESTBED_ET_PEER_START:
378 * Task to register all hosts available in the global host list
381 * @param tc the scheduler task context
384 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
388 * Callback which will be called to after a host registration succeeded or failed
390 * @param cls the closure
391 * @param emsg the error message; NULL if host registration is successful
394 host_registration_completion (void *cls, const char *emsg)
399 LOG (GNUNET_ERROR_TYPE_WARNING,
400 _("Host registration failed for a host. Error: %s\n"), emsg);
401 GNUNET_SCHEDULER_cancel (abort_task);
402 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
405 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
410 * Task to register all hosts available in the global host list
413 * @param tc the scheduler task context
416 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
418 struct DLLOperation *dll_op;
419 static unsigned int reg_host;
422 register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
423 if (reg_host == num_hosts - 1)
425 LOG (GNUNET_ERROR_TYPE_DEBUG,
426 "All hosts successfully registered\n");
428 state = STATE_SLAVES_STARTING;
429 for (slave = 1; slave < num_hosts; slave++)
431 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
432 dll_op->op = GNUNET_TESTBED_controller_link (dll_op,
438 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
442 reg_handle = GNUNET_TESTBED_register_host (mc, hosts[++reg_host],
443 host_registration_completion,
449 * Callback to signal successfull startup of the controller process
451 * @param cls the closure from GNUNET_TESTBED_controller_start()
452 * @param cfg the configuration with which the controller has been started;
453 * NULL if status is not GNUNET_OK
454 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
455 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
458 status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *config, int status)
460 GNUNET_SCHEDULER_cancel (abort_task);
461 if (GNUNET_OK != status)
464 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
468 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_START);
469 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_STOP);
470 event_mask |= (1LL << GNUNET_TESTBED_ET_CONNECT);
471 event_mask |= (1LL << GNUNET_TESTBED_ET_DISCONNECT);
472 event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
473 mc = GNUNET_TESTBED_controller_connect (config, hosts[0], event_mask,
474 &controller_event_cb, NULL);
477 LOG (GNUNET_ERROR_TYPE_WARNING,
478 _("Unable to connect to master controller -- Check config\n"));
479 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
482 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
483 abort_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
489 * Main function that will be run by the scheduler.
492 * @param args remaining command-line arguments
493 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
494 * @param config configuration
497 run (void *cls, char *const *args, const char *cfgfile,
498 const struct GNUNET_CONFIGURATION_Handle *config)
504 fprintf (stderr, _("No hosts-file specified on command line\n"));
512 num_hosts = GNUNET_TESTBED_hosts_load_from_file (args[0], &hosts);
515 fprintf (stderr, _("No hosts loaded. Need atleast one host\n"));
518 for (nhost = 0; nhost < num_hosts; nhost++)
520 if (GNUNET_YES != GNUNET_TESTBED_is_host_habitable (hosts[nhost]))
522 fprintf (stderr, _("Host %s cannot start testbed\n"),
523 GNUNET_TESTBED_host_get_hostname_ (hosts[nhost]));
527 if (num_hosts != nhost)
529 fprintf (stderr, _("Exiting\n"));
530 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
533 cfg = GNUNET_CONFIGURATION_dup (config);
535 GNUNET_TESTBED_controller_start (GNUNET_TESTBED_host_get_hostname_
542 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
543 (GNUNET_TIME_UNIT_SECONDS, 5), &do_abort,
551 * @return 0 on success
554 main (int argc, char *const *argv)
556 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
557 { 'n', "num-peers", "COUNT",
558 gettext_noop ("create COUNT number of peers"),
559 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_peers },
560 { 'n', "num-peers", "COUNT",
561 gettext_noop ("create COUNT number of peers"),
562 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_peers },
563 GNUNET_GETOPT_OPTION_END
567 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
570 result = GNUNET_SYSERR;
572 GNUNET_PROGRAM_run (argc, argv, "gnunet-testbed-profiler [OPTIONS] hosts-file",
573 _("Profiler for testbed"),
574 options, &run, NULL);
575 if (GNUNET_OK != ret)
577 if (GNUNET_OK != result)