short timeout, transmission based on receiving to avoid reordering and overflowing...
[oweals/gnunet.git] / src / core / test_core_api_reliability.c
1 /*
2      This file is part of GNUnet.
3      (C) 2009, 2010 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 2, 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 core/test_core_api_reliability.c
22  * @brief testcase for core_api.c focusing on reliable transmission (with TCP)
23  *
24  * FIXME:
25  * - make sure connect callback is invoked properly as well!
26  */
27 #include "platform.h"
28 #include "gnunet_common.h"
29 #include "gnunet_constants.h"
30 #include "gnunet_arm_service.h"
31 #include "gnunet_core_service.h"
32 #include "gnunet_getopt_lib.h"
33 #include "gnunet_os_lib.h"
34 #include "gnunet_program_lib.h"
35 #include "gnunet_scheduler_lib.h"
36 #include "gnunet_transport_service.h"
37
38 #define VERBOSE GNUNET_YES
39
40 #define START_ARM GNUNET_YES
41
42 /**
43  * How long until we give up on transmitting the message?
44  */
45 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
46
47 /**
48  * What delay do we request from the core service for transmission?
49  * Any value smaller than the CORK delay will disable CORKing, which
50  * is what we want here.
51  */
52 #define FAST_TIMEOUT GNUNET_TIME_relative_divide (GNUNET_CONSTANTS_MAX_CORK_DELAY, 2)
53
54 #define MTYPE 12345
55
56
57 static unsigned long long total_bytes;
58
59 static struct GNUNET_TIME_Absolute start_time;
60
61 /**
62  * Note that this value must not significantly exceed
63  * 'MAX_PENDING' in 'gnunet-service-transport.c', otherwise
64  * messages may be dropped even for a reliable transport.
65  */
66 #define TOTAL_MSGS (60000 * 2)
67
68 struct PeerContext
69 {
70   struct GNUNET_CONFIGURATION_Handle *cfg;
71   struct GNUNET_CORE_Handle *ch;
72   struct GNUNET_PeerIdentity id;   
73   struct GNUNET_TRANSPORT_Handle *th;
74   struct GNUNET_MessageHeader *hello;
75   int connect_status;
76 #if START_ARM
77   pid_t arm_pid;
78 #endif
79 };
80
81 static struct PeerContext p1;
82
83 static struct PeerContext p2;
84
85 static struct GNUNET_SCHEDULER_Handle *sched;
86
87 static int ok;
88
89 #if VERBOSE
90 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
91 #else
92 #define OKPP do { ok++; } while (0)
93 #endif
94
95 struct TestMessage 
96 {
97   struct GNUNET_MessageHeader header;
98   uint32_t num;
99 };
100
101
102 static unsigned int
103 get_size (unsigned int iter)
104 {
105   unsigned int ret;
106   if (iter < 60000)
107     return iter + sizeof (struct TestMessage);
108   ret = (iter * iter * iter);
109   return sizeof (struct TestMessage) + (ret % 60000);
110 }
111
112
113 static void
114 terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
115 {
116   unsigned long long delta;
117
118   GNUNET_CORE_disconnect (p1.ch);
119   p1.ch = NULL;
120   GNUNET_CORE_disconnect (p2.ch);
121   p2.ch = NULL;
122   GNUNET_TRANSPORT_disconnect (p1.th);
123   p1.th = NULL;
124   GNUNET_TRANSPORT_disconnect (p2.th);
125   p2.th = NULL;
126   delta = GNUNET_TIME_absolute_get_duration (start_time).value;
127   fprintf (stderr,
128            "\nThroughput was %llu kb/s\n",
129            total_bytes * 1000 / 1024 / delta);
130   ok = 0;
131 }
132
133
134 static void
135 terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
136 {
137   GNUNET_break (0);
138   GNUNET_CORE_disconnect (p1.ch);
139   p1.ch = NULL;
140   GNUNET_CORE_disconnect (p2.ch);
141   p2.ch = NULL;
142   GNUNET_TRANSPORT_disconnect (p1.th);
143   p1.th = NULL;
144   GNUNET_TRANSPORT_disconnect (p2.th);
145   p2.th = NULL;
146   ok = 42;
147 }
148
149
150 static void
151 connect_notify (void *cls,
152                 const struct GNUNET_PeerIdentity *peer,
153                 struct GNUNET_TIME_Relative latency,
154                 uint32_t distance)
155 {
156   struct PeerContext *pc = cls;
157   GNUNET_assert (pc->connect_status == 0);
158   pc->connect_status = 1;
159   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
160               "Encrypted connection established to peer `%4s'\n",
161               GNUNET_i2s (peer));
162 }
163
164
165 static void
166 disconnect_notify (void *cls,
167                    const struct GNUNET_PeerIdentity *peer)
168 {
169   struct PeerContext *pc = cls;
170   pc->connect_status = 0;
171   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
172               "Encrypted connection to `%4s' cut\n", GNUNET_i2s (peer));
173 }
174
175
176 static int
177 inbound_notify (void *cls,
178                 const struct GNUNET_PeerIdentity *other,
179                 const struct GNUNET_MessageHeader *message,
180                 struct GNUNET_TIME_Relative latency,
181                 uint32_t distance)
182 {
183   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
184               "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
185   return GNUNET_OK;
186 }
187
188
189 static int
190 outbound_notify (void *cls,
191                  const struct GNUNET_PeerIdentity *other,
192                  const struct GNUNET_MessageHeader *message,
193                  struct GNUNET_TIME_Relative latency,
194                  uint32_t distance)
195 {
196   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
197               "Core notifies about outbound data for `%4s'.\n",
198               GNUNET_i2s (other));
199   return GNUNET_OK;
200 }
201
202
203 static GNUNET_SCHEDULER_TaskIdentifier err_task;
204
205
206 static size_t
207 transmit_ready (void *cls, size_t size, void *buf);
208
209 static int tr_n;
210
211
212 static int
213 process_mtype (void *cls,
214                const struct GNUNET_PeerIdentity *peer,
215                const struct GNUNET_MessageHeader *message,
216                struct GNUNET_TIME_Relative latency,
217                uint32_t distance)
218 {
219   static int n;
220   unsigned int s;
221   const struct TestMessage *hdr;
222
223   hdr = (const struct TestMessage*) message;
224   s = get_size (n);
225   if (MTYPE != ntohs (message->type))
226     return GNUNET_SYSERR;
227   if (ntohs (message->size) != s)
228     {
229       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
230                   "Expected message %u of size %u, got %u bytes of message %u\n",
231                   n, s,
232                   ntohs (message->size),
233                   ntohl (hdr->num));
234       GNUNET_SCHEDULER_cancel (sched, err_task);
235       err_task = GNUNET_SCHEDULER_add_now (sched, &terminate_task_error, NULL);
236       return GNUNET_SYSERR;
237     }
238   if (ntohl (hdr->num) != n)
239     {
240       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
241                   "Expected message %u of size %u, got %u bytes of message %u\n",
242                   n, s,
243                   ntohs (message->size),
244                   ntohl (hdr->num));
245       GNUNET_SCHEDULER_cancel (sched, err_task);
246       err_task = GNUNET_SCHEDULER_add_now (sched, &terminate_task_error, NULL);
247       return GNUNET_SYSERR;
248     }
249 #if VERBOSE
250   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
251               "Got message %u of size %u\n",
252               ntohl (hdr->num),
253               ntohs (message->size));         
254 #endif
255   n++;
256   if (0 == (n % (TOTAL_MSGS/100)))
257     fprintf (stderr, ".");
258   if (n == TOTAL_MSGS)
259     {
260       GNUNET_SCHEDULER_cancel (sched, err_task);
261       GNUNET_SCHEDULER_add_now (sched, &terminate_task, NULL);
262     }
263   else
264     {
265       if (n == tr_n)
266         GNUNET_break (NULL != 
267                       GNUNET_CORE_notify_transmit_ready (p1.ch,
268                                                          0,
269                                                          FAST_TIMEOUT,
270                                                          &p2.id,
271                                                          sizeof (struct GNUNET_MessageHeader),
272                                                          &transmit_ready, &p1));
273     }
274   return GNUNET_OK;
275 }
276
277
278 static struct GNUNET_CORE_MessageHandler handlers[] = {
279   {&process_mtype, MTYPE, 0},
280   {NULL, 0, 0}
281 };
282
283
284 static size_t
285 transmit_ready (void *cls, size_t size, void *buf)
286 {
287   char *cbuf = buf;
288   struct TestMessage hdr;
289   unsigned int s;
290   unsigned int ret;
291
292   GNUNET_assert (size <= GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE); 
293   if (buf == NULL)
294     {
295       if (p1.ch != NULL)
296         GNUNET_break (NULL != 
297                       GNUNET_CORE_notify_transmit_ready (p1.ch,
298                                                          0,
299                                                          FAST_TIMEOUT,
300                                                          &p2.id,
301                                                          sizeof (struct GNUNET_MessageHeader),
302                                                          &transmit_ready, &p1));
303       return 0;
304     }
305   GNUNET_assert (tr_n < TOTAL_MSGS);
306   ret = 0;
307   s = get_size (tr_n);
308   GNUNET_assert (size >= s);
309   GNUNET_assert (buf != NULL);
310   cbuf = buf;
311   do
312     {
313 #if VERBOSE
314       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
315                   "Sending message %u of size %u at offset %u\n",
316                   tr_n,
317                   s,
318                   ret);
319 #endif
320       hdr.header.size = htons (s);
321       hdr.header.type = htons (MTYPE);
322       hdr.num = htonl (tr_n);
323       memcpy (&cbuf[ret], &hdr, sizeof (struct TestMessage));
324       ret += sizeof (struct TestMessage);
325       memset (&cbuf[ret], tr_n, s - sizeof (struct TestMessage));
326       ret += s - sizeof (struct TestMessage);
327       tr_n++;
328       s = get_size (tr_n);
329       if (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16))
330         break; /* sometimes pack buffer full, sometimes not */
331     }
332   while (size - ret >= s);
333   GNUNET_SCHEDULER_cancel (sched, err_task);
334   err_task = 
335     GNUNET_SCHEDULER_add_delayed (sched,
336                                   TIMEOUT,
337                                   &terminate_task_error, 
338                                   NULL);
339   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
340               "Returning total message block of size %u\n",
341               ret);
342   total_bytes += ret;
343   return ret;
344 }
345
346
347
348 static void
349 init_notify (void *cls,
350              struct GNUNET_CORE_Handle *server,
351              const struct GNUNET_PeerIdentity *my_identity,
352              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
353 {
354   struct PeerContext *p = cls;
355
356   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
357               "Connection to CORE service of `%4s' established\n",
358               GNUNET_i2s (my_identity));
359   GNUNET_assert (server != NULL);
360   p->id = *my_identity;
361   p->ch = server;
362   if (cls == &p1)
363     {
364       GNUNET_assert (ok == 2);
365       OKPP;
366       /* connect p2 */
367       GNUNET_CORE_connect (sched,
368                            p2.cfg,
369                            TIMEOUT,
370                            &p2,
371                            &init_notify,                         
372                            &connect_notify,
373                            &disconnect_notify,
374                            &inbound_notify,
375                            GNUNET_YES,
376                            &outbound_notify, GNUNET_YES, handlers);
377     }
378   else
379     {
380       GNUNET_assert (ok == 3);
381       OKPP;
382       GNUNET_assert (cls == &p2);
383       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
384                   "Asking core (1) for transmission to peer `%4s'\n",
385                   GNUNET_i2s (&p2.id));
386       err_task = 
387         GNUNET_SCHEDULER_add_delayed (sched,
388                                       TIMEOUT,
389                                       &terminate_task_error, 
390                                       NULL);
391       start_time = GNUNET_TIME_absolute_get ();
392       GNUNET_break (NULL != 
393                     GNUNET_CORE_notify_transmit_ready (p1.ch,
394                                                        0,
395                                                        TIMEOUT,
396                                                        &p2.id,
397                                                        sizeof (struct GNUNET_MessageHeader),
398                                                        &transmit_ready, &p1));
399     }
400 }
401
402
403 static void
404 process_hello (void *cls,
405                const struct GNUNET_MessageHeader *message)
406 {
407   struct PeerContext *p = cls;
408
409   GNUNET_TRANSPORT_get_hello_cancel (p->th, &process_hello, p);
410   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
411               "Received (my) `%s' from transport service\n",
412               "HELLO");
413   GNUNET_assert (message != NULL);
414   p->hello = GNUNET_malloc (ntohs (message->size));
415   memcpy (p->hello, message, ntohs (message->size));
416   if ((p == &p1) && (p2.th != NULL))
417     GNUNET_TRANSPORT_offer_hello (p2.th, message);
418   if ((p == &p2) && (p1.th != NULL))
419     GNUNET_TRANSPORT_offer_hello (p1.th, message);
420
421   if ((p == &p1) && (p2.hello != NULL))
422     GNUNET_TRANSPORT_offer_hello (p1.th, p2.hello);
423   if ((p == &p2) && (p1.hello != NULL))
424     GNUNET_TRANSPORT_offer_hello (p2.th, p1.hello);
425 }
426
427
428
429 static void
430 setup_peer (struct PeerContext *p, const char *cfgname)
431 {
432   p->cfg = GNUNET_CONFIGURATION_create ();
433 #if START_ARM
434   p->arm_pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
435                                         "gnunet-service-arm",
436 #if VERBOSE
437                                         "-L", "DEBUG",
438 #endif
439                                         "-c", cfgname, NULL);
440 #endif
441   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
442   p->th = GNUNET_TRANSPORT_connect (sched, p->cfg, p, NULL, NULL, NULL);
443   GNUNET_assert (p->th != NULL);
444   GNUNET_TRANSPORT_get_hello (p->th, &process_hello, p);
445 }
446
447
448 static void
449 run (void *cls,
450      struct GNUNET_SCHEDULER_Handle *s,
451      char *const *args,
452      const char *cfgfile,
453      const struct GNUNET_CONFIGURATION_Handle *cfg)
454 {
455   GNUNET_assert (ok == 1);
456   OKPP;
457   sched = s;
458   setup_peer (&p1, "test_core_api_peer1.conf");
459   setup_peer (&p2, "test_core_api_peer2.conf");
460   GNUNET_CORE_connect (sched,
461                        p1.cfg,
462                        TIMEOUT,
463                        &p1,
464                        &init_notify,
465                        &connect_notify,
466                        &disconnect_notify,
467                        &inbound_notify,
468                        GNUNET_YES, &outbound_notify, GNUNET_YES, handlers);
469 }
470
471
472 static void
473 stop_arm (struct PeerContext *p)
474 {
475 #if START_ARM
476   if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
477     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
478   if (GNUNET_OS_process_wait(p->arm_pid) != GNUNET_OK)
479     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
480   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
481               "ARM process %u stopped\n", p->arm_pid);
482 #endif
483   GNUNET_CONFIGURATION_destroy (p->cfg);
484 }
485
486 static int
487 check ()
488 {
489   char *const argv[] = { "test-core-api-reliability",
490     "-c",
491     "test_core_api_data.conf",
492 #if VERBOSE
493     "-L", "DEBUG",
494 #endif
495     NULL
496   };
497   struct GNUNET_GETOPT_CommandLineOption options[] = {
498     GNUNET_GETOPT_OPTION_END
499   };
500   ok = 1;
501   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
502                       argv, "test-core-api-reliability", "nohelp", options, &run, &ok);
503   stop_arm (&p1);
504   stop_arm (&p2);
505   return ok;
506 }
507
508 int
509 main (int argc, char *argv[])
510 {
511   int ret;
512
513   GNUNET_log_setup ("test-core-api",
514 #if VERBOSE
515                     "DEBUG",
516 #else
517                     "WARNING",
518 #endif
519                     NULL);
520   ret = check ();
521   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-1"); 
522   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-2");
523
524   return ret;
525 }
526
527 /* end of test_core_api_reliability.c */