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authorChristian Grothoff <christian@grothoff.org>2012-11-02 10:19:00 +0000
committerChristian Grothoff <christian@grothoff.org>2012-11-02 10:19:00 +0000
commitc6ef80f13164795b0b53bc7c4c7cae2452cf861e (patch)
tree9205d3cf10cc02c359b229e291375ca483f93090 /src/dht/test_dht_twopeer_path_tracking.c
parent2100eaeefbccd6cb2b6f952320092542f82a2051 (diff)
downloadgnunet-c6ef80f13164795b0b53bc7c4c7cae2452cf861e.tar.gz
gnunet-c6ef80f13164795b0b53bc7c4c7cae2452cf861e.zip
-major DHT test cleanup
Diffstat (limited to 'src/dht/test_dht_twopeer_path_tracking.c')
-rw-r--r--src/dht/test_dht_twopeer_path_tracking.c522
1 files changed, 0 insertions, 522 deletions
diff --git a/src/dht/test_dht_twopeer_path_tracking.c b/src/dht/test_dht_twopeer_path_tracking.c
deleted file mode 100644
index 86086b806..000000000
--- a/src/dht/test_dht_twopeer_path_tracking.c
+++ /dev/null
@@ -1,522 +0,0 @@
1/*
2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
4
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.
9
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.
14
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.
19*/
20/**
21 * @file dht/test_dht_twopeer_path_tracking.c
22 * @brief testcase for testing DHT service with
23 * two running peers, logging the path of the dht requests.
24 */
25#include "platform.h"
26#include "gnunet_testing_lib.h"
27#include "gnunet_core_service.h"
28#include "gnunet_dht_service.h"
29
30/* DEFINES */
31#define VERBOSE GNUNET_NO
32
33/* Timeout for entire testcase */
34#define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
35
36/* Timeout for waiting for replies to get requests */
37#define GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 30)
38
39/* If number of peers not in config file, use this number */
40#define DEFAULT_NUM_PEERS 2
41
42/* Globals */
43
44/**
45 * Directory to store temp data in, defined in config file
46 */
47static char *test_directory;
48
49/**
50 * Variable used to store the number of connections we should wait for.
51 */
52static unsigned int expected_connections;
53
54/**
55 * Variable used to keep track of how many peers aren't yet started.
56 */
57static unsigned long long peers_left;
58
59/**
60 * Handle to the set of all peers run for this test.
61 */
62static struct GNUNET_TESTING_PeerGroup *pg;
63
64/**
65 * Global handle we will use for GET requests.
66 */
67struct GNUNET_DHT_GetHandle *global_get_handle;
68
69
70/**
71 * Total number of peers to run, set based on config file.
72 */
73static unsigned long long num_peers;
74
75/**
76 * Global used to count how many connections we have currently
77 * been notified about (how many times has topology_callback been called
78 * with success?)
79 */
80static unsigned int total_connections;
81
82/**
83 * Global used to count how many failed connections we have
84 * been notified about (how many times has topology_callback
85 * been called with failure?)
86 */
87static unsigned int failed_connections;
88
89/**
90 * Task handle to use to schedule test failure
91 */
92GNUNET_SCHEDULER_TaskIdentifier die_task;
93
94/**
95 * Global return value (0 for success, anything else for failure)
96 */
97static int ok;
98
99/**
100 * Peer identity of the first peer started.
101 */
102static struct GNUNET_PeerIdentity peer1id;
103
104/**
105 * Peer identity of the second peer started.
106 */
107static struct GNUNET_PeerIdentity peer2id;
108
109/**
110 * Handle to the first peers DHT service (via the API)
111 */
112static struct GNUNET_DHT_Handle *peer1dht;
113
114/**
115 * Handle to the second peers DHT service (via the API)
116 */
117static struct GNUNET_DHT_Handle *peer2dht;
118
119/**
120 * Check whether peers successfully shut down.
121 */
122void
123shutdown_callback (void *cls, const char *emsg)
124{
125 if (emsg != NULL)
126 {
127 if (ok == 0)
128 ok = 2;
129 }
130}
131
132/**
133 * Function scheduled to be run on the successful completion of this
134 * testcase. Specifically, called when our get request completes.
135 */
136static void
137finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
138{
139 GNUNET_assert (pg != NULL);
140 GNUNET_assert (peer1dht != NULL);
141 GNUNET_assert (peer2dht != NULL);
142 GNUNET_DHT_disconnect (peer1dht);
143 GNUNET_DHT_disconnect (peer2dht);
144 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
145 ok = 0;
146}
147
148/**
149 * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
150 * down the peers without freeing memory associated with GET request.
151 */
152static void
153end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
154{
155 if (peer1dht != NULL)
156 GNUNET_DHT_disconnect (peer1dht);
157
158 if (peer2dht != NULL)
159 GNUNET_DHT_disconnect (peer2dht);
160
161 if (pg != NULL)
162 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
163}
164
165/**
166 * Check if the get_handle is being used, if so stop the request. Either
167 * way, schedule the end_badly_cont function which actually shuts down the
168 * test.
169 */
170static void
171end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
172{
173 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failing test with error: `%s'!\n",
174 (char *) cls);
175 if (global_get_handle != NULL)
176 {
177 GNUNET_DHT_get_stop (global_get_handle);
178 global_get_handle = NULL;
179 }
180 GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
181 ok = 1;
182}
183
184/**
185 * Iterator called if the GET request initiated returns a response.
186 *
187 * @param cls closure
188 * @param exp when will this value expire
189 * @param key key of the result
190 * @param type type of the result
191 * @param size number of bytes in data
192 * @param data pointer to the result data
193 */
194static void
195get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
196 const struct GNUNET_HashCode * key,
197 const struct GNUNET_PeerIdentity *get_path,
198 unsigned int get_path_length,
199 const struct GNUNET_PeerIdentity *put_path,
200 unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
201 size_t size, const void *data)
202{
203 struct GNUNET_HashCode original_key; /* Key data was stored data under */
204 char original_data[4]; /* Made up data that was stored */
205
206 memset (&original_key, 42, sizeof (struct GNUNET_HashCode)); /* Set the key to what it was set to previously */
207 memset (original_data, 43, sizeof (original_data));
208#if VERBOSE
209 unsigned int i;
210#endif
211
212 if ((0 != memcmp (&original_key, key, sizeof (struct GNUNET_HashCode))) ||
213 (0 != memcmp (original_data, data, sizeof (original_data))))
214 {
215 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
216 "Key or data is not the same as was inserted!\n");
217 GNUNET_SCHEDULER_cancel (die_task);
218 GNUNET_SCHEDULER_add_now (&end_badly,
219 "key or data mismatch in get response!\n");
220 return;
221 }
222
223#if VERBOSE
224 if (put_path != NULL)
225 {
226 FPRINTF (stderr, "%s", "PUT Path: ");
227 for (i = 0; i < put_path_length; i++)
228 FPRINTF (stderr, "%s%s", i == 0 ? "" : "->", GNUNET_i2s (&put_path[i]));
229 FPRINTF (stderr, "%s", "\n");
230 }
231 if (get_path != NULL)
232 {
233 FPRINTF (stderr, "%s", "GET Path: ");
234 for (i = 0; i < get_path_length; i++)
235 FPRINTF (stderr, "%s%s", i == 0 ? "" : "->", GNUNET_i2s (&get_path[i]));
236 FPRINTF (stderr, "%s", "\n");
237 }
238#endif
239
240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
241 GNUNET_SCHEDULER_cancel (die_task);
242 GNUNET_DHT_get_stop (global_get_handle);
243 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
244}
245
246
247/**
248 * Called when the PUT request has been transmitted to the DHT service.
249 * Schedule the GET request for some time in the future.
250 */
251static void
252put_finished (void *cls, int success)
253{
254 struct GNUNET_HashCode key; /* Key for data lookup */
255
256 GNUNET_SCHEDULER_cancel (die_task);
257 die_task =
258 GNUNET_SCHEDULER_add_delayed (GET_TIMEOUT, &end_badly,
259 "waiting for get response (data not found)");
260 memset (&key, 42, sizeof (struct GNUNET_HashCode)); /* Set the key to the same thing as when data was inserted */
261 global_get_handle =
262 GNUNET_DHT_get_start (peer2dht,
263 GNUNET_BLOCK_TYPE_TEST, &key, 1,
264 GNUNET_DHT_RO_RECORD_ROUTE, NULL, 0,
265 &get_result_iterator, NULL);
266}
267
268/**
269 * Set up some data, and call API PUT function
270 */
271static void
272do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
273{
274 struct GNUNET_HashCode key; /* Made up key to store data under */
275 char data[4]; /* Made up data to store */
276
277 memset (&key, 42, sizeof (struct GNUNET_HashCode)); /* Set the key to something simple so we can issue GET request */
278 memset (data, 43, sizeof (data));
279
280 /* Insert the data at the first peer */
281 GNUNET_DHT_put (peer1dht, &key, 1, GNUNET_DHT_RO_RECORD_ROUTE,
282 GNUNET_BLOCK_TYPE_TEST, sizeof (data), data,
283 GNUNET_TIME_UNIT_FOREVER_ABS, GNUNET_TIME_UNIT_FOREVER_REL,
284 &put_finished, NULL);
285}
286
287/**
288 * This function is called whenever a connection attempt is finished between two of
289 * the started peers (started with GNUNET_TESTING_daemons_start). The total
290 * number of times this function is called should equal the number returned
291 * from the GNUNET_TESTING_connect_topology call.
292 *
293 * The emsg variable is NULL on success (peers connected), and non-NULL on
294 * failure (peers failed to connect).
295 */
296static void
297topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
298 const struct GNUNET_PeerIdentity *second, uint32_t distance,
299 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
300 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
301 struct GNUNET_TESTING_Daemon *first_daemon,
302 struct GNUNET_TESTING_Daemon *second_daemon,
303 const char *emsg)
304{
305 if (emsg == NULL)
306 {
307 total_connections++;
308#if VERBOSE
309 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
310 "connected peer %s to peer %s, distance %u\n",
311 first_daemon->shortname, second_daemon->shortname, distance);
312#endif
313 }
314#if VERBOSE
315 else
316 {
317 failed_connections++;
318 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
319 "Failed to connect peer %s to peer %s with error :\n%s\n",
320 first_daemon->shortname, second_daemon->shortname, emsg);
321 }
322#endif
323
324 if (total_connections == expected_connections)
325 {
326#if VERBOSE
327 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
328 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
329 total_connections);
330#endif
331 GNUNET_SCHEDULER_cancel (die_task);
332 die_task =
333 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from test gets");
334
335 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
336 (GNUNET_TIME_UNIT_SECONDS, 2), &do_put, NULL);
337 }
338 else if (total_connections + failed_connections == expected_connections)
339 {
340 GNUNET_SCHEDULER_cancel (die_task);
341 die_task =
342 GNUNET_SCHEDULER_add_now (&end_badly,
343 "from topology_callback (too many failed connections)");
344 }
345}
346
347
348/**
349 * Callback which is called whenever a peer is started (as a result of the
350 * GNUNET_TESTING_daemons_start call.
351 *
352 * @param cls closure argument given to GNUNET_TESTING_daemons_start
353 * @param id the GNUNET_PeerIdentity of the started peer
354 * @param cfg the configuration for this specific peer (needed to connect
355 * to the DHT)
356 * @param d the handle to the daemon started
357 * @param emsg NULL if peer started, non-NULL on error
358 */
359static void
360peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
361 const struct GNUNET_CONFIGURATION_Handle *cfg,
362 struct GNUNET_TESTING_Daemon *d, const char *emsg)
363{
364 if (emsg != NULL)
365 {
366 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
367 "Failed to start daemon with error: `%s'\n", emsg);
368 return;
369 }
370 GNUNET_assert (id != NULL);
371
372 /* This is the first peer started */
373 if (peers_left == num_peers)
374 {
375 memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity)); /* Save the peer id */
376 peer1dht = GNUNET_DHT_connect (cfg, 100); /* Connect to the first peers DHT service */
377 if (peer1dht == NULL) /* If DHT connect failed */
378 {
379 GNUNET_SCHEDULER_cancel (die_task);
380 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
381 }
382 }
383 else /* This is the second peer started */
384 {
385 memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity)); /* Same as for first peer... */
386 peer2dht = GNUNET_DHT_connect (cfg, 100);
387 if (peer2dht == NULL)
388 {
389 GNUNET_SCHEDULER_cancel (die_task);
390 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
391 }
392 }
393
394 /* Decrement number of peers left to start */
395 peers_left--;
396
397 if (peers_left == 0) /* Indicates all peers started */
398 {
399#if VERBOSE
400 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
401 "All %d daemons started, now connecting peers!\n", num_peers);
402#endif
403 expected_connections = -1;
404 if ((pg != NULL)) /* Sanity check */
405 {
406 /* Connect peers in a "straight line" topology, return the number of expected connections */
407 expected_connections =
408 GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_LINE,
409 GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
410 0.0, TIMEOUT, 2, NULL, NULL);
411 }
412
413 /* Cancel current timeout fail task */
414 GNUNET_SCHEDULER_cancel (die_task);
415 if (expected_connections == GNUNET_SYSERR) /* Some error happened */
416 die_task =
417 GNUNET_SCHEDULER_add_now (&end_badly,
418 "from connect topology (bad return)");
419
420 /* Schedule timeout on failure task */
421 die_task =
422 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
423 "from connect topology (timeout)");
424 ok = 0;
425 }
426}
427
428static void
429run (void *cls, char *const *args, const char *cfgfile,
430 const struct GNUNET_CONFIGURATION_Handle *cfg)
431{
432
433 /* Get path from configuration file */
434 if (GNUNET_YES !=
435 GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
436 &test_directory))
437 {
438 ok = 404;
439 return;
440 }
441
442 /* Get number of peers to start from configuration (should be two) */
443 if (GNUNET_SYSERR ==
444 GNUNET_CONFIGURATION_get_value_number (cfg, "testing_old", "num_peers",
445 &num_peers))
446 num_peers = DEFAULT_NUM_PEERS;
447
448 /* Set peers_left so we know when all peers started */
449 peers_left = num_peers;
450
451 /* Set up a task to end testing if peer start fails */
452 die_task =
453 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
454 "didn't start all daemons in reasonable amount of time!!!");
455
456 /* Start num_peers peers, call peers_started_callback on peer start, topology_callback on peer connect */
457 /* Read the API documentation for other parameters! */
458 pg = GNUNET_TESTING_daemons_start (cfg, peers_left, /* Total number of peers */
459 peers_left, /* Number of outstanding connections */
460 peers_left, /* Number of parallel ssh connections, or peers being started at once */
461 TIMEOUT, NULL, NULL,
462 &peers_started_callback, NULL,
463 &topology_callback, NULL, NULL);
464
465}
466
467static int
468check ()
469{
470 int ret;
471
472 /* Arguments for GNUNET_PROGRAM_run */
473 char *const argv[] = { "test-dht-twopeer-put-get", /* Name to give running binary */
474 "-c",
475 "test_dht_twopeer_data.conf", /* Config file to use */
476#if VERBOSE
477 "-L", "DEBUG",
478#endif
479 NULL
480 };
481 struct GNUNET_GETOPT_CommandLineOption options[] = {
482 GNUNET_GETOPT_OPTION_END
483 };
484 /* Run the run function as a new program */
485 ret =
486 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
487 "test-dht-twopeer-put-get", "nohelp", options, &run,
488 &ok);
489 if (ret != GNUNET_OK)
490 {
491 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
492 "`test-dht-twopeer': Failed with error code %d\n", ret);
493 }
494 return ok;
495}
496
497int
498main (int argc, char *argv[])
499{
500 int ret;
501
502 GNUNET_log_setup ("test-dht-twopeer",
503#if VERBOSE
504 "DEBUG",
505#else
506 "WARNING",
507#endif
508 NULL);
509 ret = check ();
510 /**
511 * Need to remove base directory, subdirectories taken care
512 * of by the testing framework.
513 */
514 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
515 {
516 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
517 "Failed to remove testing directory %s\n", test_directory);
518 }
519 return ret;
520}
521
522/* end of test_dht_twopeer_put_get.c */