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 mesh/gnunet-regex-profiler.c
23 * @brief Regex profiler for testing distributed regex use.
32 #include "gnunet_applications.h"
33 #include "gnunet_util_lib.h"
34 #include "gnunet_mesh_service.h"
35 #include "gnunet_stream_lib.h"
36 #include "gnunet_testbed_service.h"
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 * Available states during profiling
78 STATE_SLAVES_STARTING,
101 * Matching strings against announced regexes
106 * Destroying peers; we can do this as the controller takes care of stopping a
107 * peer if it is running
109 STATE_PEERS_DESTROYING
114 * An array of hosts loaded from the hostkeys file
116 static struct GNUNET_TESTBED_Host **hosts;
129 * The actual testbed peer handle.
131 struct GNUNET_TESTBED_Peer *peer_handle;
134 * Host on which the peer is running.
136 struct GNUNET_TESTBED_Host *host_handle;
139 * Filename of the peer's policy file.
144 * Peers search string.
146 const char *search_str;
149 * Peer's mesh handle.
151 struct GNUNET_MESH_Handle *mesh_handle;
154 * Peer's mesh tunnel handle.
156 struct GNUNET_MESH_Tunnel *mesh_tunnel_handle;
159 * Testbed operation handle for the mesh service.
161 struct GNUNET_TESTBED_Operation *mesh_op_handle;
164 * Peers's statistics handle.
166 struct GNUNET_STATISTICS_Handle *stats_handle;
169 * Testbed operation handle for the statistics service.
171 struct GNUNET_TESTBED_Operation *stats_op_handle;
174 * The starting time of a profiling step.
176 struct GNUNET_TIME_Absolute prof_start_time;
180 * Array of peer handles used to pass to
181 * GNUNET_TESTBED_overlay_configure_topology
183 struct GNUNET_TESTBED_Peer **peer_handles;
186 * The array of peers; we fill this as the peers are given to us by the testbed
188 static struct RegexPeer *peers;
191 * Host registration handle
193 static struct GNUNET_TESTBED_HostRegistrationHandle *reg_handle;
196 * Handle to the master controller process
198 struct GNUNET_TESTBED_ControllerProc *mc_proc;
201 * Handle to the master controller
203 struct GNUNET_TESTBED_Controller *mc;
206 * Handle to global configuration
208 struct GNUNET_CONFIGURATION_Handle *cfg;
211 * Head of the operations list
213 struct DLLOperation *dll_op_head;
216 * Tail of the operations list
218 struct DLLOperation *dll_op_tail;
221 * Peer linking - topology operation
223 struct GNUNET_TESTBED_Operation *topology_op;
226 * Abort task identifier
228 static GNUNET_SCHEDULER_TaskIdentifier abort_task;
231 * Host registration task identifier
233 static GNUNET_SCHEDULER_TaskIdentifier register_hosts_task;
236 * Global event mask for all testbed events
241 * The starting time of a profiling step
243 struct GNUNET_TIME_Absolute prof_start_time;
246 * Duration profiling step has taken
248 struct GNUNET_TIME_Relative prof_time;
253 unsigned int peer_id;
256 * Number of peers to be started by the profiler
258 static unsigned int num_peers;
261 * Number of hosts in the hosts array
263 static unsigned int num_hosts;
266 * Factor of number of links. num_links = num_peers * linking_factor.
268 static unsigned int linking_factor;
271 * Number of random links to be established between peers
273 static unsigned int num_links;
276 * Number of timeout failures to tolerate
278 static unsigned int num_cont_fails;
281 * Number of times we try overlay connect operations
283 static unsigned int retry_links;
286 * Continuous failures during overlay connect operations
288 static unsigned int cont_fails;
291 * Global testing status
296 * current state of profiling
301 * Folder where policy files are stored.
303 static char * policy_dir;
308 static char **search_strings;
311 * Number of search strings.
313 static int num_search_strings;
316 * Number of peers found with search strings.
318 static unsigned int peers_found;
321 * Search task identifier
323 static GNUNET_SCHEDULER_TaskIdentifier search_task;
326 * Search timeout task identifier.
328 static GNUNET_SCHEDULER_TaskIdentifier search_timeout_task;
331 * Search timeout in seconds.
333 static struct GNUNET_TIME_Relative search_timeout = { 60000 };
336 * How long do we wait before starting the search?
339 static struct GNUNET_TIME_Relative search_delay = { 60000 };
342 * File to log statistics to.
344 static struct GNUNET_DISK_FileHandle *data_file;
347 * Filename to log statistics to.
349 static char *data_filename;
352 * Maximal path compression length.
354 static unsigned int max_path_compression;
357 * Announce delay between regex announcing.
359 static struct GNUNET_TIME_Relative announce_delay = { 10000 };
362 * Concurrent announce batch size.
364 static unsigned int announce_batch_size;
367 * Delay before setting mesh service op as done.
369 static struct GNUNET_TIME_Relative mesh_done_delay = { 1000 };
371 /******************************************************************************/
372 /****************************** DECLARATIONS ********************************/
373 /******************************************************************************/
377 * Method called whenever a peer has connected to the tunnel.
380 * @param peer_id peer identity the tunnel was created to, NULL on timeout
381 * @param atsi performance data for the connection
385 mesh_peer_connect_handler (void *cls,
386 const struct GNUNET_PeerIdentity* peer_id,
387 const struct GNUNET_ATS_Information * atsi);
391 * Method called whenever a peer has disconnected from the tunnel.
392 * Implementations of this callback must NOT call
393 * GNUNET_MESH_tunnel_destroy immediately, but instead schedule those
394 * to run in some other task later. However, calling
395 * "GNUNET_MESH_notify_transmit_ready_cancel" is allowed.
398 * @param peer_id peer identity the tunnel stopped working with
401 mesh_peer_disconnect_handler (void *cls,
402 const struct GNUNET_PeerIdentity * peer_id);
405 * Mesh connect callback.
407 * @param cls internal peer id.
408 * @param op operation handle.
409 * @param ca_result connect adapter result.
410 * @param emsg error message.
413 mesh_connect_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
414 void *ca_result, const char *emsg);
417 * Mesh connect adapter.
419 * @param cls not used.
420 * @param cfg configuration handle.
425 mesh_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg);
429 * Adapter function called to destroy a connection to
433 * @param op_result service handle returned from the connect adapter
436 mesh_da (void *cls, void *op_result);
439 /******************************************************************************/
440 /******************************** SHUTDOWN **********************************/
441 /******************************************************************************/
448 * @param tc the task context
451 do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
453 struct DLLOperation *dll_op;
455 unsigned int peer_cnt;
456 unsigned int search_str_cnt;
458 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
460 if (NULL != peers[peer_cnt].mesh_op_handle)
461 GNUNET_TESTBED_operation_done (peers[peer_cnt].mesh_op_handle);
462 if (NULL != peers[peer_cnt].stats_op_handle)
463 GNUNET_TESTBED_operation_done (peers[peer_cnt].stats_op_handle);
465 for (search_str_cnt = 0; search_str_cnt < num_search_strings; search_str_cnt++)
467 GNUNET_free (search_strings[search_str_cnt]);
469 GNUNET_free (search_strings);
470 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
471 GNUNET_SCHEDULER_cancel (abort_task);
472 if (GNUNET_SCHEDULER_NO_TASK != register_hosts_task)
473 GNUNET_SCHEDULER_cancel (register_hosts_task);
474 if (NULL != reg_handle)
475 GNUNET_TESTBED_cancel_registration (reg_handle);
476 if (NULL != topology_op)
477 GNUNET_TESTBED_operation_done (topology_op);
478 for (nhost = 0; nhost < num_hosts; nhost++)
479 if (NULL != hosts[nhost])
480 GNUNET_TESTBED_host_destroy (hosts[nhost]);
481 GNUNET_free_non_null (hosts);
482 while (NULL != (dll_op = dll_op_head))
484 GNUNET_TESTBED_operation_done (dll_op->op);
485 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
486 GNUNET_free (dll_op);
489 GNUNET_TESTBED_controller_disconnect (mc);
491 GNUNET_TESTBED_controller_stop (mc_proc);
493 GNUNET_CONFIGURATION_destroy (cfg);
494 if (NULL != data_file)
495 GNUNET_DISK_file_close (data_file);
497 GNUNET_SCHEDULER_shutdown (); /* Stop scheduler to shutdown testbed run */
502 * abort task to run on test timed out
505 * @param tc the task context
508 do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
510 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Aborting\n");
511 abort_task = GNUNET_SCHEDULER_NO_TASK;
512 result = GNUNET_SYSERR;
513 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
517 /******************************************************************************/
518 /********************* STATISTICS SERVICE CONNECTIONS ***********************/
519 /******************************************************************************/
522 * Adapter function called to establish a connection to
523 * statistics service.
526 * @param cfg configuration of the peer to connect to; will be available until
527 * GNUNET_TESTBED_operation_done() is called on the operation returned
528 * from GNUNET_TESTBED_service_connect()
529 * @return service handle to return in 'op_result', NULL on error
532 stats_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
534 return GNUNET_STATISTICS_create ("<driver>", cfg);
539 * Adapter function called to destroy a connection to
540 * statistics service.
543 * @param op_result service handle returned from the connect adapter
546 stats_da (void *cls, void *op_result)
548 GNUNET_STATISTICS_destroy (op_result, GNUNET_NO);
553 * Process statistic values.
556 * @param subsystem name of subsystem that created the statistic
557 * @param name the name of the datum
558 * @param value the current value
559 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
560 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
563 stats_iterator (void *cls, const char *subsystem, const char *name,
564 uint64_t value, int is_persistent)
566 struct RegexPeer *peer = cls;
567 char output_buffer[512];
570 if (NULL == data_file)
572 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
573 "%p -> %s [%s]: %llu\n",
574 peer, subsystem, name, value);
578 GNUNET_snprintf (output_buffer,
579 sizeof (output_buffer),
582 subsystem, value, name);
583 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
584 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
594 * @param success GNUNET_OK if statistics were
595 * successfully obtained, GNUNET_SYSERR if not.
601 static unsigned int peer_cnt;
602 struct RegexPeer *peer = cls;
604 if (GNUNET_OK != success)
606 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
607 "Getting statistics for peer %u failed!\n",
612 GNUNET_TESTBED_operation_done (peer->stats_op_handle);
613 peer->stats_op_handle = NULL;
615 if (++peer_cnt == num_search_strings)
617 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
623 * Function called by testbed once we are connected to stats service.
625 * @param cls the 'struct RegexPeer' for which we connected to stats
626 * @param op connect operation handle
627 * @param ca_result handle to stats service
628 * @param emsg error message on failure
631 stats_connect_cb (void *cls,
632 struct GNUNET_TESTBED_Operation *op,
636 struct RegexPeer *peer = cls;
638 if (NULL == ca_result || NULL != emsg)
640 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
641 "Failed to connect to statistics service on peer %u: %s\n",
644 peer->stats_handle = NULL;
648 GNUNET_assert (NULL != peer->mesh_handle);
650 peer->stats_handle = ca_result;
652 peer->mesh_tunnel_handle = GNUNET_MESH_tunnel_create (peer->mesh_handle,
654 &mesh_peer_connect_handler,
655 &mesh_peer_disconnect_handler,
658 peer->prof_start_time = GNUNET_TIME_absolute_get ();
660 GNUNET_MESH_peer_request_connect_by_string (peer->mesh_tunnel_handle,
665 /******************************************************************************/
666 /************************ MESH SERVICE CONNECTIONS **************************/
667 /******************************************************************************/
670 * Method called whenever another peer has added us to a tunnel
671 * the other peer initiated.
672 * Only called (once) upon reception of data with a message type which was
673 * subscribed to in GNUNET_MESH_connect. A call to GNUNET_MESH_tunnel_destroy
674 * causes te tunnel to be ignored and no further notifications are sent about
678 * @param tunnel new handle to the tunnel
679 * @param initiator peer that started the tunnel
680 * @param atsi performance information for the tunnel
681 * @return initial tunnel context for the tunnel
682 * (can be NULL -- that's not an error)
685 mesh_inbound_tunnel_handler (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
686 const struct GNUNET_PeerIdentity *initiator,
687 const struct GNUNET_ATS_Information *atsi)
689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh inbound tunnel handler.\n");
696 * Function called whenever an inbound tunnel is destroyed. Should clean up
697 * any associated state. This function is NOT called if the client has
698 * explicitly asked for the tunnel to be destroyed using
699 * GNUNET_MESH_tunnel_destroy. It must NOT call GNUNET_MESH_tunnel_destroy on
702 * @param cls closure (set from GNUNET_MESH_connect)
703 * @param tunnel connection to the other end (henceforth invalid)
704 * @param tunnel_ctx place where local state associated
705 * with the tunnel is stored
708 mesh_tunnel_end_handler (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
711 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh tunnel end handler.\n");
716 * Method called whenever a peer has disconnected from the tunnel.
717 * Implementations of this callback must NOT call
718 * GNUNET_MESH_tunnel_destroy immediately, but instead schedule those
719 * to run in some other task later. However, calling
720 * "GNUNET_MESH_notify_transmit_ready_cancel" is allowed.
723 * @param peer_id peer identity the tunnel stopped working with
726 mesh_peer_disconnect_handler (void *cls,
727 const struct GNUNET_PeerIdentity * peer_id)
729 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh peer disconnect handler.\n");
734 * Method called whenever a peer has connected to the tunnel.
737 * @param peer_id peer identity the tunnel was created to, NULL on timeout
738 * @param atsi performance data for the connection
742 mesh_peer_connect_handler (void *cls,
743 const struct GNUNET_PeerIdentity* peer_id,
744 const struct GNUNET_ATS_Information * atsi)
746 struct RegexPeer *peer = cls;
747 char output_buffer[512];
754 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
755 "String matching timed out for string %s on peer %u (%i/%i)\n",
756 peer->search_str, peer->id, peers_found, num_search_strings);
760 prof_time = GNUNET_TIME_absolute_get_duration (peer->prof_start_time);
761 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
762 "String %s successfully matched on peer %u after %s (%i/%i)\n",
763 peer->search_str, peer->id, GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
764 peers_found, num_search_strings);
766 printf ("String %s successfully matched on peer %u after %s (%i/%i)\n",
767 peer->search_str, peer->id, GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
768 peers_found, num_search_strings);
771 if (NULL != data_file)
774 GNUNET_snprintf (output_buffer,
775 sizeof (output_buffer),
776 "Peer: %u (%p)\nHost: %s\nPolicy file: %s\nSearch string: %s\nSearch duration: %s\n\n",
779 GNUNET_TESTBED_host_get_hostname (peer->host_handle),
782 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
784 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
785 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
788 if (NULL == peer->stats_handle)
790 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
791 "Cannot get statistics for peer %u, stats handle is NULL!\n");
795 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "mesh", NULL,
796 GNUNET_TIME_UNIT_FOREVER_REL,
798 &stats_iterator, peer))
800 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
801 "Could not get mesh statistics of peer %u!\n", peer->id);
803 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "transport", NULL,
804 GNUNET_TIME_UNIT_FOREVER_REL,
806 &stats_iterator, peer))
808 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
809 "Could not get transport statistics of peer %u!\n", peer->id);
811 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "dht", NULL,
812 GNUNET_TIME_UNIT_FOREVER_REL,
814 &stats_iterator, peer))
816 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
817 "Could not get dht statistics of peer %u!\n", peer->id);
821 if (peers_found == num_search_strings)
823 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
824 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
825 "All strings successfully matched in %s\n",
826 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
827 printf ("All strings successfully matched. Shutting down.\n");
830 if (GNUNET_SCHEDULER_NO_TASK != search_timeout_task)
831 GNUNET_SCHEDULER_cancel (search_timeout_task);
837 * Connect by string timeout task
840 * @param tc the task context
843 do_connect_by_string_timeout (void *cls,
844 const struct GNUNET_SCHEDULER_TaskContext * tc)
846 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
847 "Finding matches to all strings did not succeed after %s.\n",
848 GNUNET_STRINGS_relative_time_to_string (search_timeout, GNUNET_NO));
849 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
850 "Found %i of %i strings\n", peers_found, num_search_strings);
852 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
857 * Connect by string task that is run to search for a string in the NFA
860 * @param tc the task context
863 do_connect_by_string (void *cls,
864 const struct GNUNET_SCHEDULER_TaskContext * tc)
866 unsigned int search_cnt;
867 struct RegexPeer *peer;
869 printf ("Starting string search.\n");
872 for (search_cnt = 0; search_cnt < num_search_strings; search_cnt++)
874 peer = &peers[search_cnt % num_peers];
875 peer->search_str = search_strings[search_cnt];
877 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
878 "Searching for string \"%s\" on peer %d with file %s\n",
879 peer->search_str, (search_cnt % num_peers), peer->policy_file);
881 /* First connect to mesh service, then connect to stats service
882 and then try connecting by string in stats_connect_cb */
883 peer->mesh_op_handle =
884 GNUNET_TESTBED_service_connect (NULL,
894 search_timeout_task = GNUNET_SCHEDULER_add_delayed (search_timeout,
895 &do_connect_by_string_timeout, NULL);
900 * Delayed operation done for mesh service disconnects.
903 * @param tc the task context
906 do_mesh_op_done (void *cls,
907 const struct GNUNET_SCHEDULER_TaskContext * tc)
909 struct RegexPeer *peer = cls;
910 GNUNET_TESTBED_operation_done (peer->mesh_op_handle);
911 peer->mesh_op_handle = NULL;
916 * Mesh connect callback.
918 * @param cls internal peer id.
919 * @param op operation handle.
920 * @param ca_result connect adapter result.
921 * @param emsg error message.
924 mesh_connect_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
925 void *ca_result, const char *emsg)
927 static unsigned int peer_cnt;
928 struct RegexPeer *peer = (struct RegexPeer *) cls;
935 if (NULL != emsg || NULL == op || NULL == ca_result)
937 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Mesh connect failed: %s\n", emsg);
941 GNUNET_assert (peer->mesh_handle != NULL);
942 GNUNET_assert (peer->mesh_op_handle == op);
943 GNUNET_assert (peer->mesh_handle == ca_result);
944 GNUNET_assert (NULL != peer->policy_file);
948 case STATE_ANNOUNCE_REGEX:
950 static unsigned int num_files_announced;
952 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
953 "Announcing regexes for peer %u with file %s\n",
954 peer->id, peer->policy_file);
956 if (GNUNET_YES != GNUNET_DISK_file_test (peer->policy_file))
958 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
959 "Could not find policy file %s\n", peer->policy_file);
962 if (GNUNET_OK != GNUNET_DISK_file_size (peer->policy_file, &filesize, GNUNET_YES, GNUNET_YES))
966 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Policy file %s is empty.\n", peer->policy_file);
969 data = GNUNET_malloc (filesize);
970 if (filesize != GNUNET_DISK_fn_read (peer->policy_file, data, filesize))
973 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Could not read policy file %s.\n",
980 while (offset < (filesize - 1))
983 if (((data[offset] == '\n')) && (buf != &data[offset]))
987 GNUNET_assert (NULL != regex);
988 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Announcing regex: %s on peer %u \n",
990 GNUNET_MESH_announce_regex (peer->mesh_handle, regex, max_path_compression);
991 buf = &data[offset + 1];
993 else if ((data[offset] == '\n') || (data[offset] == '\0'))
994 buf = &data[offset + 1];
998 GNUNET_SCHEDULER_add_delayed (mesh_done_delay, &do_mesh_op_done, peer);
1000 if (++peer_cnt < num_peers)
1002 peers[peer_cnt].mesh_op_handle =
1003 GNUNET_TESTBED_service_connect (NULL,
1004 peers[peer_cnt].peer_handle,
1013 if (++num_files_announced == num_peers)
1015 state = STATE_SEARCH_REGEX;
1017 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1019 printf ("All files announced in %s.\n",
1020 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1021 printf ("Waiting %s before starting to search.\n",
1022 GNUNET_STRINGS_relative_time_to_string (search_delay, GNUNET_YES));
1025 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1026 "All regexes announced in %s. Waiting %s before starting to search.\n",
1027 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
1028 GNUNET_STRINGS_relative_time_to_string (search_delay, GNUNET_NO));
1030 search_task = GNUNET_SCHEDULER_add_delayed (search_delay,
1031 &do_connect_by_string, NULL);
1035 case STATE_SEARCH_REGEX:
1037 /* First connect to the stats service, then start to search */
1038 peer->stats_op_handle =
1039 GNUNET_TESTBED_service_connect (NULL,
1056 * Mesh connect adapter.
1058 * @param cls not used.
1059 * @param cfg configuration handle.
1064 mesh_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
1066 GNUNET_MESH_ApplicationType app;
1067 struct RegexPeer *peer = cls;
1069 static struct GNUNET_MESH_MessageHandler handlers[] = {
1073 app = (GNUNET_MESH_ApplicationType)0;
1076 GNUNET_MESH_connect (cfg, cls, NULL, NULL, handlers, &app);
1078 return peer->mesh_handle;
1083 * Adapter function called to destroy a connection to
1086 * @param cls closure
1087 * @param op_result service handle returned from the connect adapter
1090 mesh_da (void *cls, void *op_result)
1092 struct RegexPeer *peer = (struct RegexPeer *) cls;
1094 GNUNET_assert (peer->mesh_handle == op_result);
1096 if (NULL != peer->mesh_tunnel_handle)
1098 GNUNET_MESH_tunnel_destroy (peer->mesh_tunnel_handle);
1099 peer->mesh_tunnel_handle = NULL;
1102 if (NULL != peer->mesh_handle)
1104 GNUNET_MESH_disconnect (peer->mesh_handle);
1105 peer->mesh_handle = NULL;
1110 /******************************************************************************/
1111 /*************************** TESTBED PEER SETUP *****************************/
1112 /******************************************************************************/
1116 * Functions of this signature are called when a peer has been successfully
1117 * started or stopped.
1119 * @param cls the closure from GNUNET_TESTBED_peer_start/stop()
1120 * @param emsg NULL on success; otherwise an error description
1123 peer_churn_cb (void *cls, const char *emsg)
1125 struct DLLOperation *dll_op = cls;
1126 struct GNUNET_TESTBED_Operation *op;
1127 static unsigned int started_peers;
1128 unsigned int peer_cnt;
1131 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1132 GNUNET_free (dll_op);
1135 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1136 _("An operation has failed while starting peers\n"));
1137 GNUNET_TESTBED_operation_done (op);
1138 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1139 GNUNET_SCHEDULER_cancel (abort_task);
1140 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1143 GNUNET_TESTBED_operation_done (op);
1144 if (++started_peers == num_peers)
1146 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1147 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1148 "All peers started successfully in %s\n",
1149 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1152 peer_handles = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Peer *) * num_peers);
1153 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
1154 peer_handles[peer_cnt] = peers[peer_cnt].peer_handle;
1157 if (0 == linking_factor)
1159 num_links = linking_factor * num_peers;
1161 num_links = num_peers - 1;
1162 state = STATE_PEERS_LINKING;
1163 /* Do overlay connect */
1164 prof_start_time = GNUNET_TIME_absolute_get ();
1166 GNUNET_TESTBED_overlay_configure_topology (NULL, num_peers, peer_handles,
1167 GNUNET_TESTBED_TOPOLOGY_LINE,
1168 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
1169 if (NULL == topology_op)
1171 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1172 "Cannot create topology, op handle was NULL\n");
1180 * Functions of this signature are called when a peer has been successfully
1183 * @param cls the closure from GNUNET_TESTBED_peer_create()
1184 * @param peer the handle for the created peer; NULL on any error during
1186 * @param emsg NULL if peer is not NULL; else MAY contain the error description
1189 peer_create_cb (void *cls, struct GNUNET_TESTBED_Peer *peer, const char *emsg)
1191 struct DLLOperation *dll_op = cls;
1192 struct RegexPeer *peer_ptr;
1193 static unsigned int created_peers;
1194 unsigned int peer_cnt;
1198 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1199 _("Creating a peer failed. Error: %s\n"), emsg);
1200 GNUNET_TESTBED_operation_done (dll_op->op);
1201 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1202 GNUNET_free (dll_op);
1203 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1204 GNUNET_SCHEDULER_cancel (abort_task);
1205 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1209 peer_ptr = dll_op->cls;
1210 GNUNET_assert (NULL == peer_ptr->peer_handle);
1211 peer_ptr->peer_handle = peer;
1212 GNUNET_TESTBED_operation_done (dll_op->op);
1213 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1214 GNUNET_free (dll_op);
1216 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peer %i created on host %s\n",
1218 GNUNET_TESTBED_host_get_hostname (peer_ptr->host_handle));
1220 if (++created_peers == num_peers)
1222 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1223 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1224 "All peers created successfully in %s\n",
1225 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1226 /* Now peers are to be started */
1227 state = STATE_PEERS_STARTING;
1228 prof_start_time = GNUNET_TIME_absolute_get ();
1229 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
1231 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1232 dll_op->op = GNUNET_TESTBED_peer_start (dll_op, peers[peer_cnt].peer_handle,
1233 &peer_churn_cb, dll_op);
1234 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1240 * Function called with a filename.
1242 * @param cls closure
1243 * @param filename complete filename (absolute path)
1244 * @return GNUNET_OK to continue to iterate,
1245 * GNUNET_SYSERR to abort iteration with error!
1248 policy_filename_cb (void *cls, const char *filename)
1250 static unsigned int peer_cnt;
1251 struct DLLOperation *dll_op;
1252 struct RegexPeer *peer = &peers[peer_cnt];
1254 GNUNET_assert (NULL != peer);
1256 peer->id = peer_cnt;
1257 peer->policy_file = GNUNET_strdup (filename);
1258 /* Do not start peers on hosts[0] (master controller) */
1259 peer->host_handle = hosts[1 + (peer_cnt % (num_hosts -1))];
1260 peer->mesh_handle = NULL;
1261 peer->mesh_tunnel_handle = NULL;
1262 peer->stats_handle = NULL;
1263 peer->stats_op_handle = NULL;
1265 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Creating peer %i on host %s for policy file %s\n",
1267 GNUNET_TESTBED_host_get_hostname (peer->host_handle),
1270 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1271 dll_op->cls = &peers[peer_cnt];
1272 dll_op->op = GNUNET_TESTBED_peer_create (mc,
1277 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1285 * Controller event callback.
1288 * @param event the controller event
1291 controller_event_cb (void *cls,
1292 const struct GNUNET_TESTBED_EventInformation *event)
1294 struct DLLOperation *dll_op;
1295 struct GNUNET_TESTBED_Operation *op;
1299 case STATE_SLAVES_STARTING:
1300 switch (event->type)
1302 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1304 static unsigned int slaves_started;
1306 dll_op = event->details.operation_finished.op_cls;
1307 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1308 GNUNET_free (dll_op);
1309 op = event->details.operation_finished.operation;
1310 if (NULL != event->details.operation_finished.emsg)
1312 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1313 _("An operation has failed while starting slaves\n"));
1314 GNUNET_TESTBED_operation_done (op);
1315 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1316 GNUNET_SCHEDULER_cancel (abort_task);
1317 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1320 GNUNET_TESTBED_operation_done (op);
1321 /* Proceed to start peers */
1322 if (++slaves_started == num_hosts - 1)
1324 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1325 "All slaves started successfully\n");
1327 state = STATE_PEERS_CREATING;
1328 prof_start_time = GNUNET_TIME_absolute_get ();
1330 num_peers = GNUNET_DISK_directory_scan (policy_dir,
1333 peers = GNUNET_malloc (sizeof (struct RegexPeer) * num_peers);
1335 GNUNET_DISK_directory_scan (policy_dir,
1336 &policy_filename_cb,
1345 case STATE_PEERS_STARTING:
1346 switch (event->type)
1348 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1349 /* Control reaches here when peer start fails */
1350 case GNUNET_TESTBED_ET_PEER_START:
1351 /* we handle peer starts in peer_churn_cb */
1357 case STATE_PEERS_LINKING:
1358 switch (event->type)
1360 static unsigned int established_links;
1361 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1362 /* Control reaches here when a peer linking operation fails */
1363 if (NULL != event->details.operation_finished.emsg)
1365 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1366 _("An operation has failed while linking\n"));
1371 if (++cont_fails > num_cont_fails)
1373 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1374 "We have a very high peer linking failure rate: %u (threshold: %u)\n",
1379 /* We do no retries, consider this link as established */
1381 case GNUNET_TESTBED_ET_CONNECT:
1383 char output_buffer[512];
1386 if (0 == established_links)
1387 printf ("Establishing links .");
1393 if (++established_links == num_links)
1396 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1397 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1398 "%u links established in %s\n",
1400 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1402 GNUNET_free (peer_handles);
1404 if (NULL != data_file)
1407 GNUNET_snprintf (output_buffer,
1408 sizeof (output_buffer),
1409 "# of peers: %u\n# of links established: %u\n"
1410 "Time to establish links: %s\nLinking failures: %u\n"
1411 "path compression length: %u\n",
1413 (established_links - cont_fails),
1414 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
1416 max_path_compression);
1418 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
1419 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
1422 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1423 "Connecting to mesh service and start announcing regex...\n");
1424 printf ("\nStarting to connect to mesh services and announce regex\n");
1427 prof_start_time = GNUNET_TIME_absolute_get ();
1428 peers[0].mesh_op_handle =
1429 GNUNET_TESTBED_service_connect (NULL,
1430 peers[0].peer_handle,
1437 state = STATE_ANNOUNCE_REGEX;
1445 case STATE_ANNOUNCE_REGEX:
1447 /* Handled in service connect callback */
1450 case STATE_SEARCH_REGEX:
1452 /* Handled in service connect callback */
1458 case STATE_PEERS_CREATING:
1459 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to create peer\n");
1462 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1463 "Unexpected controller_cb with state %i!\n", state);
1471 * Task to register all hosts available in the global host list
1474 * @param tc the scheduler task context
1477 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1481 * Callback which will be called to after a host registration succeeded or failed
1483 * @param cls the closure
1484 * @param emsg the error message; NULL if host registration is successful
1487 host_registration_completion (void *cls, const char *emsg)
1492 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1493 _("Host registration failed for a host. Error: %s\n"), emsg);
1494 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1495 GNUNET_SCHEDULER_cancel (abort_task);
1496 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1499 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
1504 * Task to register all hosts available in the global host list
1507 * @param tc the scheduler task context
1510 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1512 struct DLLOperation *dll_op;
1513 static unsigned int reg_host;
1516 register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
1517 if (reg_host == num_hosts - 1)
1519 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1520 "All hosts successfully registered\n");
1522 state = STATE_SLAVES_STARTING;
1523 for (slave = 1; slave < num_hosts; slave++)
1525 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1526 dll_op->op = GNUNET_TESTBED_controller_link (dll_op,
1532 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1536 reg_handle = GNUNET_TESTBED_register_host (mc, hosts[++reg_host],
1537 host_registration_completion,
1543 * Callback to signal successfull startup of the controller process
1545 * @param cls the closure from GNUNET_TESTBED_controller_start()
1546 * @param config the configuration with which the controller has been started;
1547 * NULL if status is not GNUNET_OK
1548 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1549 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1552 status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *config, int status)
1554 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1555 GNUNET_SCHEDULER_cancel (abort_task);
1556 if (GNUNET_OK != status)
1559 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1563 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_START);
1564 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_STOP);
1565 event_mask |= (1LL << GNUNET_TESTBED_ET_CONNECT);
1566 event_mask |= (1LL << GNUNET_TESTBED_ET_DISCONNECT);
1567 event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
1568 mc = GNUNET_TESTBED_controller_connect (config, hosts[0], event_mask,
1569 &controller_event_cb, NULL);
1572 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1573 _("Unable to connect to master controller -- Check config\n"));
1574 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1577 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
1578 abort_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
1584 * Load search strings from given filename. One search string per line.
1586 * @param filename filename of the file containing the search strings.
1587 * @param strings set of strings loaded from file. Caller needs to free this
1588 * if number returned is greater than zero.
1589 * @return number of strings found in the file. GNUNET_SYSERR on error.
1592 load_search_strings (const char *filename, char ***strings)
1597 unsigned int offset;
1601 if (NULL == filename)
1603 return GNUNET_SYSERR;
1606 if (GNUNET_YES != GNUNET_DISK_file_test (filename))
1608 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1609 "Could not find search strings file %s\n", filename);
1610 return GNUNET_SYSERR;
1612 if (GNUNET_OK != GNUNET_DISK_file_size (filename, &filesize, GNUNET_YES, GNUNET_YES))
1616 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Search strings file %s is empty.\n", filename);
1617 return GNUNET_SYSERR;
1619 data = GNUNET_malloc (filesize);
1620 if (filesize != GNUNET_DISK_fn_read (filename, data, filesize))
1623 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Could not read search strings file %s.\n",
1625 return GNUNET_SYSERR;
1630 while (offset < (filesize - 1))
1633 if (((data[offset] == '\n')) && (buf != &data[offset]))
1635 data[offset] = '\0';
1637 buf = &data[offset + 1];
1639 else if ((data[offset] == '\n') || (data[offset] == '\0'))
1640 buf = &data[offset + 1];
1642 *strings = GNUNET_malloc (sizeof (char *) * str_cnt);
1644 for (i = 0; i < str_cnt; i++)
1646 (*strings)[i] = GNUNET_strdup (&data[offset]);
1647 offset += strlen ((*strings)[i]) + 1;
1655 * Main function that will be run by the scheduler.
1657 * @param cls closure
1658 * @param args remaining command-line arguments
1659 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
1660 * @param config configuration
1663 run (void *cls, char *const *args, const char *cfgfile,
1664 const struct GNUNET_CONFIGURATION_Handle *config)
1668 if (NULL == args[0])
1670 fprintf (stderr, _("No hosts-file specified on command line. Exiting.\n"));
1673 if (NULL == args[1])
1675 fprintf (stderr, _("No policy directory specified on command line. Exiting.\n"));
1678 num_hosts = GNUNET_TESTBED_hosts_load_from_file (args[0], &hosts);
1681 fprintf (stderr, _("No hosts loaded. Need at least one host\n"));
1684 for (nhost = 0; nhost < num_hosts; nhost++)
1686 if (GNUNET_YES != GNUNET_TESTBED_is_host_habitable (hosts[nhost]))
1688 fprintf (stderr, _("Host %s cannot start testbed\n"),
1689 GNUNET_TESTBED_host_get_hostname (hosts[nhost]));
1693 if (num_hosts != nhost)
1695 fprintf (stderr, _("Exiting\n"));
1696 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1701 fprintf (stderr, _("No configuration file given. Exiting\n"));
1702 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1705 if ( (NULL != data_filename) &&
1706 (NULL == (data_file =
1707 GNUNET_DISK_file_open (data_filename,
1708 GNUNET_DISK_OPEN_READWRITE |
1709 GNUNET_DISK_OPEN_TRUNCATE |
1710 GNUNET_DISK_OPEN_CREATE,
1711 GNUNET_DISK_PERM_USER_READ |
1712 GNUNET_DISK_PERM_USER_WRITE))) )
1713 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
1716 if (GNUNET_YES != GNUNET_DISK_directory_test (args[1]))
1718 fprintf (stderr, _("Specified policies directory does not exist. Exiting.\n"));
1719 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1722 policy_dir = args[1];
1723 if (GNUNET_YES != GNUNET_DISK_file_test (args[2]))
1725 fprintf (stderr, _("No search strings file given. Exiting.\n"));
1726 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1729 num_search_strings = load_search_strings (args[2], &search_strings);
1730 if (0 >= num_search_strings || NULL == search_strings)
1732 fprintf (stderr, _("Error loading search strings. Exiting.\n"));
1733 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1737 for (i = 0; i < num_search_strings; i++)
1738 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "search string: %s\n", search_strings[i]);
1739 cfg = GNUNET_CONFIGURATION_dup (config);
1741 GNUNET_TESTBED_controller_start (GNUNET_TESTBED_host_get_hostname
1748 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
1749 (GNUNET_TIME_UNIT_SECONDS, 5), &do_abort,
1757 * @param argc argument count
1758 * @param argv argument values
1759 * @return 0 on success
1762 main (int argc, char *const *argv)
1764 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
1765 {'d', "details", "FILENAME",
1766 gettext_noop ("name of the file for writing statistics"),
1767 1, &GNUNET_GETOPT_set_string, &data_filename},
1768 { 'n', "linking-factor", "FACTOR",
1769 gettext_noop ("create FACTOR times number of peers random links"),
1770 GNUNET_YES, &GNUNET_GETOPT_set_uint, &linking_factor },
1771 { 'e', "num-errors", "COUNT",
1772 gettext_noop ("tolerate COUNT number of continious timeout failures"),
1773 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_cont_fails },
1774 { 't', "matching-timeout", "TIMEOUT",
1775 gettext_noop ("wait TIMEOUT before considering a string match as failed"),
1776 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &search_timeout },
1777 { 's', "search-delay", "DELAY",
1778 gettext_noop ("wait DELAY before starting string search"),
1779 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &search_delay },
1780 {'p', "max-path-compression", "MAX_PATH_COMPRESSION",
1781 gettext_noop ("maximum path compression length"),
1782 1, &GNUNET_GETOPT_set_uint, &max_path_compression},
1783 {'a', "announce-delay", "DELAY",
1784 gettext_noop ("wait DELAY between announcing regexes"),
1785 1, &GNUNET_GETOPT_set_relative_time, &announce_delay},
1786 {'b', "announce-batch", "SIZE",
1787 gettext_noop ("number of peers that should announce regexes concurrently"),
1788 1, &GNUNET_GETOPT_set_uint, &announce_batch_size},
1789 GNUNET_GETOPT_OPTION_END
1793 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
1796 result = GNUNET_SYSERR;
1798 GNUNET_PROGRAM_run (argc, argv, "gnunet-regex-profiler [OPTIONS] hosts-file policy-dir search-strings-file",
1799 _("Profiler for regex/mesh"),
1800 options, &run, NULL);
1801 if (GNUNET_OK != ret)
1803 if (GNUNET_OK != result)