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 * Delay before setting mesh service op as done.
359 static struct GNUNET_TIME_Relative mesh_done_delay = { 1000 };
361 /******************************************************************************/
362 /****************************** DECLARATIONS ********************************/
363 /******************************************************************************/
367 * Method called whenever a peer has connected to the tunnel.
370 * @param peer_id peer identity the tunnel was created to, NULL on timeout
371 * @param atsi performance data for the connection
375 mesh_peer_connect_handler (void *cls,
376 const struct GNUNET_PeerIdentity* peer_id,
377 const struct GNUNET_ATS_Information * atsi);
381 * Method called whenever a peer has disconnected from the tunnel.
382 * Implementations of this callback must NOT call
383 * GNUNET_MESH_tunnel_destroy immediately, but instead schedule those
384 * to run in some other task later. However, calling
385 * "GNUNET_MESH_notify_transmit_ready_cancel" is allowed.
388 * @param peer_id peer identity the tunnel stopped working with
391 mesh_peer_disconnect_handler (void *cls,
392 const struct GNUNET_PeerIdentity * peer_id);
395 * Mesh connect callback.
397 * @param cls internal peer id.
398 * @param op operation handle.
399 * @param ca_result connect adapter result.
400 * @param emsg error message.
403 mesh_connect_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
404 void *ca_result, const char *emsg);
407 * Mesh connect adapter.
409 * @param cls not used.
410 * @param cfg configuration handle.
415 mesh_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg);
419 * Adapter function called to destroy a connection to
423 * @param op_result service handle returned from the connect adapter
426 mesh_da (void *cls, void *op_result);
429 /******************************************************************************/
430 /******************************** SHUTDOWN **********************************/
431 /******************************************************************************/
438 * @param tc the task context
441 do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
443 struct DLLOperation *dll_op;
445 unsigned int peer_cnt;
446 unsigned int search_str_cnt;
448 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
450 if (NULL != peers[peer_cnt].mesh_op_handle)
451 GNUNET_TESTBED_operation_done (peers[peer_cnt].mesh_op_handle);
452 if (NULL != peers[peer_cnt].stats_op_handle)
453 GNUNET_TESTBED_operation_done (peers[peer_cnt].stats_op_handle);
455 for (search_str_cnt = 0; search_str_cnt < num_search_strings; search_str_cnt++)
457 GNUNET_free (search_strings[search_str_cnt]);
459 GNUNET_free (search_strings);
460 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
461 GNUNET_SCHEDULER_cancel (abort_task);
462 if (GNUNET_SCHEDULER_NO_TASK != register_hosts_task)
463 GNUNET_SCHEDULER_cancel (register_hosts_task);
464 if (NULL != reg_handle)
465 GNUNET_TESTBED_cancel_registration (reg_handle);
466 if (NULL != topology_op)
467 GNUNET_TESTBED_operation_done (topology_op);
468 for (nhost = 0; nhost < num_hosts; nhost++)
469 if (NULL != hosts[nhost])
470 GNUNET_TESTBED_host_destroy (hosts[nhost]);
471 GNUNET_free_non_null (hosts);
472 while (NULL != (dll_op = dll_op_head))
474 GNUNET_TESTBED_operation_done (dll_op->op);
475 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
476 GNUNET_free (dll_op);
479 GNUNET_TESTBED_controller_disconnect (mc);
481 GNUNET_TESTBED_controller_stop (mc_proc);
483 GNUNET_CONFIGURATION_destroy (cfg);
484 if (NULL != data_file)
485 GNUNET_DISK_file_close (data_file);
487 GNUNET_SCHEDULER_shutdown (); /* Stop scheduler to shutdown testbed run */
492 * abort task to run on test timed out
495 * @param tc the task context
498 do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
500 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Aborting\n");
501 abort_task = GNUNET_SCHEDULER_NO_TASK;
502 result = GNUNET_SYSERR;
503 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
507 /******************************************************************************/
508 /********************* STATISTICS SERVICE CONNECTIONS ***********************/
509 /******************************************************************************/
512 * Adapter function called to establish a connection to
513 * statistics service.
516 * @param cfg configuration of the peer to connect to; will be available until
517 * GNUNET_TESTBED_operation_done() is called on the operation returned
518 * from GNUNET_TESTBED_service_connect()
519 * @return service handle to return in 'op_result', NULL on error
522 stats_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
524 return GNUNET_STATISTICS_create ("<driver>", cfg);
529 * Adapter function called to destroy a connection to
530 * statistics service.
533 * @param op_result service handle returned from the connect adapter
536 stats_da (void *cls, void *op_result)
538 GNUNET_STATISTICS_destroy (op_result, GNUNET_NO);
543 * Process statistic values.
546 * @param subsystem name of subsystem that created the statistic
547 * @param name the name of the datum
548 * @param value the current value
549 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
550 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
553 stats_iterator (void *cls, const char *subsystem, const char *name,
554 uint64_t value, int is_persistent)
556 struct RegexPeer *peer = cls;
557 char output_buffer[512];
560 if (NULL == data_file)
562 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
563 "%p -> %s [%s]: %llu\n",
564 peer, subsystem, name, value);
568 GNUNET_snprintf (output_buffer,
569 sizeof (output_buffer),
572 subsystem, value, name);
573 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
574 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
584 * @param success GNUNET_OK if statistics were
585 * successfully obtained, GNUNET_SYSERR if not.
591 static unsigned int peer_cnt;
592 struct RegexPeer *peer = cls;
594 if (GNUNET_OK != success)
596 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
597 "Getting statistics for peer %u failed!\n",
602 GNUNET_TESTBED_operation_done (peer->stats_op_handle);
603 peer->stats_op_handle = NULL;
605 if (++peer_cnt == num_search_strings)
607 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
613 * Function called by testbed once we are connected to stats service.
615 * @param cls the 'struct RegexPeer' for which we connected to stats
616 * @param op connect operation handle
617 * @param ca_result handle to stats service
618 * @param emsg error message on failure
621 stats_connect_cb (void *cls,
622 struct GNUNET_TESTBED_Operation *op,
626 struct RegexPeer *peer = cls;
628 if (NULL == ca_result || NULL != emsg)
630 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
631 "Failed to connect to statistics service on peer %u: %s\n",
634 peer->stats_handle = NULL;
638 GNUNET_assert (NULL != peer->mesh_handle);
640 peer->stats_handle = ca_result;
642 peer->mesh_tunnel_handle = GNUNET_MESH_tunnel_create (peer->mesh_handle,
644 &mesh_peer_connect_handler,
645 &mesh_peer_disconnect_handler,
648 peer->prof_start_time = GNUNET_TIME_absolute_get ();
650 GNUNET_MESH_peer_request_connect_by_string (peer->mesh_tunnel_handle,
655 /******************************************************************************/
656 /************************ MESH SERVICE CONNECTIONS **************************/
657 /******************************************************************************/
660 * Method called whenever another peer has added us to a tunnel
661 * the other peer initiated.
662 * Only called (once) upon reception of data with a message type which was
663 * subscribed to in GNUNET_MESH_connect. A call to GNUNET_MESH_tunnel_destroy
664 * causes te tunnel to be ignored and no further notifications are sent about
668 * @param tunnel new handle to the tunnel
669 * @param initiator peer that started the tunnel
670 * @param atsi performance information for the tunnel
671 * @return initial tunnel context for the tunnel
672 * (can be NULL -- that's not an error)
675 mesh_inbound_tunnel_handler (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
676 const struct GNUNET_PeerIdentity *initiator,
677 const struct GNUNET_ATS_Information *atsi)
679 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh inbound tunnel handler.\n");
686 * Function called whenever an inbound tunnel is destroyed. Should clean up
687 * any associated state. This function is NOT called if the client has
688 * explicitly asked for the tunnel to be destroyed using
689 * GNUNET_MESH_tunnel_destroy. It must NOT call GNUNET_MESH_tunnel_destroy on
692 * @param cls closure (set from GNUNET_MESH_connect)
693 * @param tunnel connection to the other end (henceforth invalid)
694 * @param tunnel_ctx place where local state associated
695 * with the tunnel is stored
698 mesh_tunnel_end_handler (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
701 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh tunnel end handler.\n");
706 * Method called whenever a peer has disconnected from the tunnel.
707 * Implementations of this callback must NOT call
708 * GNUNET_MESH_tunnel_destroy immediately, but instead schedule those
709 * to run in some other task later. However, calling
710 * "GNUNET_MESH_notify_transmit_ready_cancel" is allowed.
713 * @param peer_id peer identity the tunnel stopped working with
716 mesh_peer_disconnect_handler (void *cls,
717 const struct GNUNET_PeerIdentity * peer_id)
719 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Mesh peer disconnect handler.\n");
724 * Method called whenever a peer has connected to the tunnel.
727 * @param peer_id peer identity the tunnel was created to, NULL on timeout
728 * @param atsi performance data for the connection
732 mesh_peer_connect_handler (void *cls,
733 const struct GNUNET_PeerIdentity* peer_id,
734 const struct GNUNET_ATS_Information * atsi)
736 struct RegexPeer *peer = cls;
737 char output_buffer[512];
744 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
745 "String matching timed out for string %s on peer %u (%i/%i)\n",
746 peer->search_str, peer->id, peers_found, num_search_strings);
750 prof_time = GNUNET_TIME_absolute_get_duration (peer->prof_start_time);
751 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
752 "String %s successfully matched on peer %u after %s (%i/%i)\n",
753 peer->search_str, peer->id, GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
754 peers_found, num_search_strings);
756 printf ("String %s successfully matched on peer %u after %s (%i/%i)\n",
757 peer->search_str, peer->id, GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
758 peers_found, num_search_strings);
761 if (NULL != data_file)
764 GNUNET_snprintf (output_buffer,
765 sizeof (output_buffer),
766 "Peer: %u (%p)\nHost: %s\nPolicy file: %s\nSearch string: %s\nSearch duration: %s\n\n",
769 GNUNET_TESTBED_host_get_hostname (peer->host_handle),
772 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
774 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
775 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
778 if (NULL == peer->stats_handle)
780 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
781 "Cannot get statistics for peer %u, stats handle is NULL!\n");
785 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "mesh", NULL,
786 GNUNET_TIME_UNIT_FOREVER_REL,
788 &stats_iterator, peer))
790 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
791 "Could not get mesh statistics of peer %u!\n", peer->id);
793 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "transport", NULL,
794 GNUNET_TIME_UNIT_FOREVER_REL,
796 &stats_iterator, peer))
798 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
799 "Could not get transport statistics of peer %u!\n", peer->id);
801 if (NULL == GNUNET_STATISTICS_get (peer->stats_handle, "dht", NULL,
802 GNUNET_TIME_UNIT_FOREVER_REL,
804 &stats_iterator, peer))
806 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
807 "Could not get dht statistics of peer %u!\n", peer->id);
811 if (peers_found == num_search_strings)
813 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
814 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
815 "All strings successfully matched in %s\n",
816 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
817 printf ("All strings successfully matched. Shutting down.\n");
820 if (GNUNET_SCHEDULER_NO_TASK != search_timeout_task)
821 GNUNET_SCHEDULER_cancel (search_timeout_task);
827 * Connect by string timeout task
830 * @param tc the task context
833 do_connect_by_string_timeout (void *cls,
834 const struct GNUNET_SCHEDULER_TaskContext * tc)
836 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
837 "Finding matches to all strings did not succeed after %s.\n",
838 GNUNET_STRINGS_relative_time_to_string (search_timeout, GNUNET_NO));
839 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
840 "Found %i of %i strings\n", peers_found, num_search_strings);
842 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
847 * Connect by string task that is run to search for a string in the NFA
850 * @param tc the task context
853 do_connect_by_string (void *cls,
854 const struct GNUNET_SCHEDULER_TaskContext * tc)
856 unsigned int search_cnt;
857 struct RegexPeer *peer;
859 printf ("Starting string search.\n");
862 for (search_cnt = 0; search_cnt < num_search_strings; search_cnt++)
864 peer = &peers[search_cnt % num_peers];
865 peer->search_str = search_strings[search_cnt];
867 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
868 "Searching for string \"%s\" on peer %d with file %s\n",
869 peer->search_str, (search_cnt % num_peers), peer->policy_file);
871 /* First connect to mesh service, then connect to stats service
872 and then try connecting by string in stats_connect_cb */
873 peer->mesh_op_handle =
874 GNUNET_TESTBED_service_connect (NULL,
884 search_timeout_task = GNUNET_SCHEDULER_add_delayed (search_timeout,
885 &do_connect_by_string_timeout, NULL);
890 * Delayed operation done for mesh service disconnects.
893 * @param tc the task context
896 do_mesh_op_done (void *cls,
897 const struct GNUNET_SCHEDULER_TaskContext * tc)
899 struct RegexPeer *peer = cls;
900 GNUNET_TESTBED_operation_done (peer->mesh_op_handle);
901 peer->mesh_op_handle = NULL;
906 * Mesh connect callback.
908 * @param cls internal peer id.
909 * @param op operation handle.
910 * @param ca_result connect adapter result.
911 * @param emsg error message.
914 mesh_connect_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
915 void *ca_result, const char *emsg)
917 static unsigned int peer_cnt;
918 struct RegexPeer *peer = (struct RegexPeer *) cls;
925 if (NULL != emsg || NULL == op || NULL == ca_result)
927 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Mesh connect failed: %s\n", emsg);
931 GNUNET_assert (peer->mesh_handle != NULL);
932 GNUNET_assert (peer->mesh_op_handle == op);
933 GNUNET_assert (peer->mesh_handle == ca_result);
934 GNUNET_assert (NULL != peer->policy_file);
938 case STATE_ANNOUNCE_REGEX:
940 static unsigned int num_files_announced;
942 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
943 "Announcing regexes for peer %u with file %s\n",
944 peer->id, peer->policy_file);
946 if (GNUNET_YES != GNUNET_DISK_file_test (peer->policy_file))
948 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
949 "Could not find policy file %s\n", peer->policy_file);
952 if (GNUNET_OK != GNUNET_DISK_file_size (peer->policy_file, &filesize, GNUNET_YES, GNUNET_YES))
956 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Policy file %s is empty.\n", peer->policy_file);
959 data = GNUNET_malloc (filesize);
960 if (filesize != GNUNET_DISK_fn_read (peer->policy_file, data, filesize))
963 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Could not read policy file %s.\n",
970 while (offset < (filesize - 1))
973 if (((data[offset] == '\n')) && (buf != &data[offset]))
977 GNUNET_assert (NULL != regex);
978 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Announcing regex: %s on peer %u \n",
980 GNUNET_MESH_announce_regex (peer->mesh_handle, regex, max_path_compression);
981 buf = &data[offset + 1];
983 else if ((data[offset] == '\n') || (data[offset] == '\0'))
984 buf = &data[offset + 1];
988 GNUNET_SCHEDULER_add_delayed (mesh_done_delay, &do_mesh_op_done, peer);
990 if (++peer_cnt < num_peers)
992 peers[peer_cnt].mesh_op_handle =
993 GNUNET_TESTBED_service_connect (NULL,
994 peers[peer_cnt].peer_handle,
1003 if (++num_files_announced == num_peers)
1005 state = STATE_SEARCH_REGEX;
1007 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1009 printf ("All files announced in %s.\n",
1010 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1011 printf ("Waiting %s before starting to search.\n",
1012 GNUNET_STRINGS_relative_time_to_string (search_delay, GNUNET_YES));
1015 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1016 "All regexes announced in %s. Waiting %s before starting to search.\n",
1017 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
1018 GNUNET_STRINGS_relative_time_to_string (search_delay, GNUNET_NO));
1020 search_task = GNUNET_SCHEDULER_add_delayed (search_delay,
1021 &do_connect_by_string, NULL);
1025 case STATE_SEARCH_REGEX:
1027 /* First connect to the stats service, then start to search */
1028 peer->stats_op_handle =
1029 GNUNET_TESTBED_service_connect (NULL,
1046 * Mesh connect adapter.
1048 * @param cls not used.
1049 * @param cfg configuration handle.
1054 mesh_ca (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
1056 GNUNET_MESH_ApplicationType app;
1057 struct RegexPeer *peer = cls;
1059 static struct GNUNET_MESH_MessageHandler handlers[] = {
1063 app = (GNUNET_MESH_ApplicationType)0;
1066 GNUNET_MESH_connect (cfg, cls, NULL, NULL, handlers, &app);
1068 return peer->mesh_handle;
1073 * Adapter function called to destroy a connection to
1076 * @param cls closure
1077 * @param op_result service handle returned from the connect adapter
1080 mesh_da (void *cls, void *op_result)
1082 struct RegexPeer *peer = (struct RegexPeer *) cls;
1084 GNUNET_assert (peer->mesh_handle == op_result);
1086 if (NULL != peer->mesh_tunnel_handle)
1088 GNUNET_MESH_tunnel_destroy (peer->mesh_tunnel_handle);
1089 peer->mesh_tunnel_handle = NULL;
1092 if (NULL != peer->mesh_handle)
1094 GNUNET_MESH_disconnect (peer->mesh_handle);
1095 peer->mesh_handle = NULL;
1100 /******************************************************************************/
1101 /*************************** TESTBED PEER SETUP *****************************/
1102 /******************************************************************************/
1106 * Functions of this signature are called when a peer has been successfully
1107 * started or stopped.
1109 * @param cls the closure from GNUNET_TESTBED_peer_start/stop()
1110 * @param emsg NULL on success; otherwise an error description
1113 peer_churn_cb (void *cls, const char *emsg)
1115 struct DLLOperation *dll_op = cls;
1116 struct GNUNET_TESTBED_Operation *op;
1117 static unsigned int started_peers;
1118 unsigned int peer_cnt;
1121 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1122 GNUNET_free (dll_op);
1125 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1126 _("An operation has failed while starting peers\n"));
1127 GNUNET_TESTBED_operation_done (op);
1128 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1129 GNUNET_SCHEDULER_cancel (abort_task);
1130 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1133 GNUNET_TESTBED_operation_done (op);
1134 if (++started_peers == num_peers)
1136 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1137 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1138 "All peers started successfully in %s\n",
1139 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1142 peer_handles = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Peer *) * num_peers);
1143 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
1144 peer_handles[peer_cnt] = peers[peer_cnt].peer_handle;
1147 if (0 == linking_factor)
1149 num_links = linking_factor * num_peers;
1151 /* num_links = num_peers - 1; */
1152 num_links = linking_factor;
1153 state = STATE_PEERS_LINKING;
1154 /* Do overlay connect */
1155 prof_start_time = GNUNET_TIME_absolute_get ();
1157 GNUNET_TESTBED_overlay_configure_topology (NULL, num_peers, peer_handles,
1158 GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI,
1160 GNUNET_TESTBED_TOPOLOGY_DISABLE_AUTO_RETRY,
1161 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
1162 if (NULL == topology_op)
1164 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1165 "Cannot create topology, op handle was NULL\n");
1173 * Functions of this signature are called when a peer has been successfully
1176 * @param cls the closure from GNUNET_TESTBED_peer_create()
1177 * @param peer the handle for the created peer; NULL on any error during
1179 * @param emsg NULL if peer is not NULL; else MAY contain the error description
1182 peer_create_cb (void *cls, struct GNUNET_TESTBED_Peer *peer, const char *emsg)
1184 struct DLLOperation *dll_op = cls;
1185 struct RegexPeer *peer_ptr;
1186 static unsigned int created_peers;
1187 unsigned int peer_cnt;
1191 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1192 _("Creating a peer failed. Error: %s\n"), emsg);
1193 GNUNET_TESTBED_operation_done (dll_op->op);
1194 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1195 GNUNET_free (dll_op);
1196 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1197 GNUNET_SCHEDULER_cancel (abort_task);
1198 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1202 peer_ptr = dll_op->cls;
1203 GNUNET_assert (NULL == peer_ptr->peer_handle);
1204 peer_ptr->peer_handle = peer;
1205 GNUNET_TESTBED_operation_done (dll_op->op);
1206 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1207 GNUNET_free (dll_op);
1209 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peer %i created on host %s\n",
1211 GNUNET_TESTBED_host_get_hostname (peer_ptr->host_handle));
1213 if (++created_peers == num_peers)
1215 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1216 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1217 "All peers created successfully in %s\n",
1218 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1219 /* Now peers are to be started */
1220 state = STATE_PEERS_STARTING;
1221 prof_start_time = GNUNET_TIME_absolute_get ();
1222 for (peer_cnt = 0; peer_cnt < num_peers; peer_cnt++)
1224 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1225 dll_op->op = GNUNET_TESTBED_peer_start (dll_op, peers[peer_cnt].peer_handle,
1226 &peer_churn_cb, dll_op);
1227 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1233 * Function called with a filename.
1235 * @param cls closure
1236 * @param filename complete filename (absolute path)
1237 * @return GNUNET_OK to continue to iterate,
1238 * GNUNET_SYSERR to abort iteration with error!
1241 policy_filename_cb (void *cls, const char *filename)
1243 static unsigned int peer_cnt;
1244 struct DLLOperation *dll_op;
1245 struct RegexPeer *peer = &peers[peer_cnt];
1247 GNUNET_assert (NULL != peer);
1249 peer->id = peer_cnt;
1250 peer->policy_file = GNUNET_strdup (filename);
1251 /* Do not start peers on hosts[0] (master controller) */
1252 peer->host_handle = hosts[1 + (peer_cnt % (num_hosts -1))];
1253 peer->mesh_handle = NULL;
1254 peer->mesh_tunnel_handle = NULL;
1255 peer->stats_handle = NULL;
1256 peer->stats_op_handle = NULL;
1258 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Creating peer %i on host %s for policy file %s\n",
1260 GNUNET_TESTBED_host_get_hostname (peer->host_handle),
1263 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1264 dll_op->cls = &peers[peer_cnt];
1265 dll_op->op = GNUNET_TESTBED_peer_create (mc,
1270 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1278 * Controller event callback.
1281 * @param event the controller event
1284 controller_event_cb (void *cls,
1285 const struct GNUNET_TESTBED_EventInformation *event)
1287 struct DLLOperation *dll_op;
1288 struct GNUNET_TESTBED_Operation *op;
1292 case STATE_SLAVES_STARTING:
1293 switch (event->type)
1295 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1297 static unsigned int slaves_started;
1299 dll_op = event->details.operation_finished.op_cls;
1300 GNUNET_CONTAINER_DLL_remove (dll_op_head, dll_op_tail, dll_op);
1301 GNUNET_free (dll_op);
1302 op = event->details.operation_finished.operation;
1303 if (NULL != event->details.operation_finished.emsg)
1305 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1306 _("An operation has failed while starting slaves\n"));
1307 GNUNET_TESTBED_operation_done (op);
1308 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1309 GNUNET_SCHEDULER_cancel (abort_task);
1310 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1313 GNUNET_TESTBED_operation_done (op);
1314 /* Proceed to start peers */
1315 if (++slaves_started == num_hosts - 1)
1317 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1318 "All slaves started successfully\n");
1320 state = STATE_PEERS_CREATING;
1321 prof_start_time = GNUNET_TIME_absolute_get ();
1323 num_peers = GNUNET_DISK_directory_scan (policy_dir,
1326 peers = GNUNET_malloc (sizeof (struct RegexPeer) * num_peers);
1328 GNUNET_DISK_directory_scan (policy_dir,
1329 &policy_filename_cb,
1338 case STATE_PEERS_STARTING:
1339 switch (event->type)
1341 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1342 /* Control reaches here when peer start fails */
1343 case GNUNET_TESTBED_ET_PEER_START:
1344 /* we handle peer starts in peer_churn_cb */
1350 case STATE_PEERS_LINKING:
1351 switch (event->type)
1353 static unsigned int established_links;
1354 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
1355 /* Control reaches here when a peer linking operation fails */
1356 if (NULL != event->details.operation_finished.emsg)
1358 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1359 _("An operation has failed while linking\n"));
1364 if (++cont_fails > num_cont_fails)
1366 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1367 "We have a very high peer linking failure rate: %u (threshold: %u)\n",
1372 /* We do no retries, consider this link as established */
1374 case GNUNET_TESTBED_ET_CONNECT:
1376 char output_buffer[512];
1379 if (0 == established_links)
1380 printf ("Establishing links .");
1386 if (++established_links == num_links)
1389 prof_time = GNUNET_TIME_absolute_get_duration (prof_start_time);
1390 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1391 "%u links established in %s\n",
1393 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO));
1395 GNUNET_free (peer_handles);
1397 if (NULL != data_file)
1400 GNUNET_snprintf (output_buffer,
1401 sizeof (output_buffer),
1402 "# of peers: %u\n# of links established: %u\n"
1403 "Time to establish links: %s\nLinking failures: %u\n"
1404 "path compression length: %u\n",
1406 (established_links - cont_fails),
1407 GNUNET_STRINGS_relative_time_to_string (prof_time, GNUNET_NO),
1409 max_path_compression);
1411 if (size != GNUNET_DISK_file_write (data_file, output_buffer, size))
1412 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Unable to write to file!\n");
1415 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1416 "Connecting to mesh service and start announcing regex...\n");
1417 printf ("\nStarting to connect to mesh services and announce regex\n");
1420 prof_start_time = GNUNET_TIME_absolute_get ();
1421 peers[0].mesh_op_handle =
1422 GNUNET_TESTBED_service_connect (NULL,
1423 peers[0].peer_handle,
1430 state = STATE_ANNOUNCE_REGEX;
1438 case STATE_ANNOUNCE_REGEX:
1440 /* Handled in service connect callback */
1443 case STATE_SEARCH_REGEX:
1445 /* Handled in service connect callback */
1451 case STATE_PEERS_CREATING:
1452 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to create peer\n");
1455 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1456 "Unexpected controller_cb with state %i!\n", state);
1464 * Task to register all hosts available in the global host list
1467 * @param tc the scheduler task context
1470 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1474 * Callback which will be called to after a host registration succeeded or failed
1476 * @param cls the closure
1477 * @param emsg the error message; NULL if host registration is successful
1480 host_registration_completion (void *cls, const char *emsg)
1485 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1486 _("Host registration failed for a host. Error: %s\n"), emsg);
1487 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1488 GNUNET_SCHEDULER_cancel (abort_task);
1489 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1492 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
1497 * Task to register all hosts available in the global host list
1500 * @param tc the scheduler task context
1503 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1505 struct DLLOperation *dll_op;
1506 static unsigned int reg_host;
1509 register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
1510 if (reg_host == num_hosts - 1)
1512 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1513 "All hosts successfully registered\n");
1515 state = STATE_SLAVES_STARTING;
1516 for (slave = 1; slave < num_hosts; slave++)
1518 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
1519 dll_op->op = GNUNET_TESTBED_controller_link (dll_op,
1525 GNUNET_CONTAINER_DLL_insert_tail (dll_op_head, dll_op_tail, dll_op);
1529 reg_handle = GNUNET_TESTBED_register_host (mc, hosts[++reg_host],
1530 host_registration_completion,
1536 * Callback to signal successfull startup of the controller process
1538 * @param cls the closure from GNUNET_TESTBED_controller_start()
1539 * @param config the configuration with which the controller has been started;
1540 * NULL if status is not GNUNET_OK
1541 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1542 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1545 status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *config, int status)
1547 if (GNUNET_SCHEDULER_NO_TASK != abort_task)
1548 GNUNET_SCHEDULER_cancel (abort_task);
1549 if (GNUNET_OK != status)
1552 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1556 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_START);
1557 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_STOP);
1558 event_mask |= (1LL << GNUNET_TESTBED_ET_CONNECT);
1559 event_mask |= (1LL << GNUNET_TESTBED_ET_DISCONNECT);
1560 event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
1561 mc = GNUNET_TESTBED_controller_connect (config, hosts[0], event_mask,
1562 &controller_event_cb, NULL);
1565 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1566 _("Unable to connect to master controller -- Check config\n"));
1567 abort_task = GNUNET_SCHEDULER_add_now (&do_abort, NULL);
1570 register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, NULL);
1571 abort_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
1577 * Load search strings from given filename. One search string per line.
1579 * @param filename filename of the file containing the search strings.
1580 * @param strings set of strings loaded from file. Caller needs to free this
1581 * if number returned is greater than zero.
1582 * @return number of strings found in the file. GNUNET_SYSERR on error.
1585 load_search_strings (const char *filename, char ***strings, unsigned int limit)
1590 unsigned int offset;
1594 if (NULL == filename)
1596 return GNUNET_SYSERR;
1599 if (GNUNET_YES != GNUNET_DISK_file_test (filename))
1601 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1602 "Could not find search strings file %s\n", filename);
1603 return GNUNET_SYSERR;
1605 if (GNUNET_OK != GNUNET_DISK_file_size (filename, &filesize, GNUNET_YES, GNUNET_YES))
1609 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Search strings file %s is empty.\n", filename);
1610 return GNUNET_SYSERR;
1612 data = GNUNET_malloc (filesize);
1613 if (filesize != GNUNET_DISK_fn_read (filename, data, filesize))
1616 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Could not read search strings file %s.\n",
1618 return GNUNET_SYSERR;
1623 while (offset < (filesize - 1) && str_cnt < limit)
1626 if (((data[offset] == '\n')) && (buf != &data[offset]))
1628 data[offset] = '\0';
1630 buf = &data[offset + 1];
1632 else if ((data[offset] == '\n') || (data[offset] == '\0'))
1633 buf = &data[offset + 1];
1635 *strings = GNUNET_malloc (sizeof (char *) * str_cnt);
1637 for (i = 0; i < str_cnt; i++)
1639 (*strings)[i] = GNUNET_strdup (&data[offset]);
1640 offset += strlen ((*strings)[i]) + 1;
1648 * Main function that will be run by the scheduler.
1650 * @param cls closure
1651 * @param args remaining command-line arguments
1652 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
1653 * @param config configuration
1656 run (void *cls, char *const *args, const char *cfgfile,
1657 const struct GNUNET_CONFIGURATION_Handle *config)
1661 if (NULL == args[0])
1663 fprintf (stderr, _("No hosts-file specified on command line. Exiting.\n"));
1666 if (NULL == args[1])
1668 fprintf (stderr, _("No policy directory specified on command line. Exiting.\n"));
1671 num_hosts = GNUNET_TESTBED_hosts_load_from_file (args[0], &hosts);
1674 fprintf (stderr, _("No hosts loaded. Need at least one host\n"));
1677 for (nhost = 0; nhost < num_hosts; nhost++)
1679 if (GNUNET_YES != GNUNET_TESTBED_is_host_habitable (hosts[nhost], config))
1681 fprintf (stderr, _("Host %s cannot start testbed\n"),
1682 GNUNET_TESTBED_host_get_hostname (hosts[nhost]));
1686 if (num_hosts != nhost)
1688 fprintf (stderr, _("Exiting\n"));
1689 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1694 fprintf (stderr, _("No configuration file given. Exiting\n"));
1695 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1698 if ( (NULL != data_filename) &&
1699 (NULL == (data_file =
1700 GNUNET_DISK_file_open (data_filename,
1701 GNUNET_DISK_OPEN_READWRITE |
1702 GNUNET_DISK_OPEN_TRUNCATE |
1703 GNUNET_DISK_OPEN_CREATE,
1704 GNUNET_DISK_PERM_USER_READ |
1705 GNUNET_DISK_PERM_USER_WRITE))) )
1706 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
1709 if (GNUNET_YES != GNUNET_DISK_directory_test (args[1]))
1711 fprintf (stderr, _("Specified policies directory does not exist. Exiting.\n"));
1712 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1715 policy_dir = args[1];
1716 if (GNUNET_YES != GNUNET_DISK_file_test (args[2]))
1718 fprintf (stderr, _("No search strings file given. Exiting.\n"));
1719 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1722 if (num_search_strings != load_search_strings (args[2], &search_strings, num_search_strings))
1724 fprintf (stderr, _("Error loading search strings. Given file does not contain enough strings. Exiting.\n"));
1725 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1728 if (0 >= num_search_strings || NULL == search_strings)
1730 fprintf (stderr, _("Error loading search strings. Exiting.\n"));
1731 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1735 for (i = 0; i < num_search_strings; i++)
1736 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "search string: %s\n", search_strings[i]);
1737 cfg = GNUNET_CONFIGURATION_dup (config);
1739 GNUNET_TESTBED_controller_start (GNUNET_TESTBED_host_get_hostname
1746 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
1747 (GNUNET_TIME_UNIT_SECONDS, 5), &do_abort,
1755 * @param argc argument count
1756 * @param argv argument values
1757 * @return 0 on success
1760 main (int argc, char *const *argv)
1762 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
1763 {'d', "details", "FILENAME",
1764 gettext_noop ("name of the file for writing statistics"),
1765 1, &GNUNET_GETOPT_set_string, &data_filename},
1766 {'n', "linking-factor", "FACTOR",
1767 gettext_noop ("create FACTOR times number of peers random links"),
1768 GNUNET_YES, &GNUNET_GETOPT_set_uint, &linking_factor },
1769 {'e', "num-errors", "COUNT",
1770 gettext_noop ("tolerate COUNT number of continious timeout failures"),
1771 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_cont_fails },
1772 {'t', "matching-timeout", "TIMEOUT",
1773 gettext_noop ("wait TIMEOUT before considering a string match as failed"),
1774 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &search_timeout },
1775 {'s', "search-delay", "DELAY",
1776 gettext_noop ("wait DELAY before starting string search"),
1777 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &search_delay },
1778 {'a', "num-search-strings", "COUNT",
1779 gettext_noop ("number of search strings to read from search strings file"),
1780 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_search_strings },
1781 {'p', "max-path-compression", "MAX_PATH_COMPRESSION",
1782 gettext_noop ("maximum path compression length"),
1783 1, &GNUNET_GETOPT_set_uint, &max_path_compression},
1784 GNUNET_GETOPT_OPTION_END
1788 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
1791 result = GNUNET_SYSERR;
1793 GNUNET_PROGRAM_run (argc, argv, "gnunet-regex-profiler [OPTIONS] hosts-file policy-dir search-strings-file",
1794 _("Profiler for regex/mesh"),
1795 options, &run, NULL);
1796 if (GNUNET_OK != ret)
1798 if (GNUNET_OK != result)