src/arm/test_exponential_backoff.c

   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 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 arm/test_exponential_backoff.c
  22  * @brief testcase for gnunet-service-arm.c
  23  */
  24 #include "platform.h"
  25 #include "gnunet_arm_service.h"
  26 #include "gnunet_client_lib.h"
  27 #include "gnunet_configuration_lib.h"
  28 #include "gnunet_program_lib.h"
  29
  30 #define VERBOSE GNUNET_NO
  31 #define START_ARM GNUNET_YES
  32 #define LOG_BACKOFF GNUNET_NO
  33 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
  34 #define SERVICE_TEST_TIMEOUT GNUNET_TIME_UNIT_FOREVER_REL
  35 #define FIVE_MILLISECONDS GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 5)
  36
  37 static struct GNUNET_SCHEDULER_Handle *sched;
  38 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  39 static struct GNUNET_ARM_Handle *arm;
  40 static int ok = 1;
  41
  42 static int trialCount;
  43 static struct GNUNET_TIME_Absolute startedWaitingAt;
  44 struct GNUNET_TIME_Relative waitedFor;
  45
  46 #if LOG_BACKOFF
  47 static FILE *killLogFilePtr;
  48 static char *killLogFileName;
  49 #endif
  50
  51
  52 static void
  53 arm_notify_stop (void *cls, int success)
  54 {
  55   GNUNET_assert (success == GNUNET_NO);
  56 #if START_ARM
  57   GNUNET_ARM_stop_service (arm, "arm", TIMEOUT, NULL, NULL);
  58 #endif
  59 }
  60
  61
  62 static void
  63 kill_task (void *cbData,
  64            const struct GNUNET_SCHEDULER_TaskContext *tc);
  65
  66
  67 static void
  68 do_nothing_notify (void *cls, int success)
  69 {
  70   GNUNET_assert (success == GNUNET_YES);
  71   ok = 1;
  72   GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_UNIT_SECONDS,
  73                                 &kill_task, NULL);
  74 }
  75
  76
  77 static void
  78 arm_notify (void *cls, int success)
  79 {
  80   GNUNET_assert (success == GNUNET_YES);
  81   GNUNET_ARM_start_service (arm,
  82                             "do-nothing", TIMEOUT,
  83                             &do_nothing_notify, NULL);
  84 }
  85
  86
  87 static void
  88 kill_task (void *cbData,
  89                    const struct GNUNET_SCHEDULER_TaskContext *tc);
  90
  91
  92 static void
  93 do_nothing_restarted_notify_task (void *cls,
  94                                   const struct GNUNET_SCHEDULER_TaskContext *tc)
  95 {
  96   static char a;
  97
  98   trialCount++;
  99
 100 #if LOG_BACKOFF
 101   if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
 102     {
 103       fprintf(killLogFilePtr,
 104               "%d.Reason is shutdown!\n",
 105               trialCount);
 106     }
 107   else if ((tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT) != 0)
 108     {
 109       fprintf(killLogFilePtr,
 110               "%d.Reason is timeout!\n",
 111               trialCount);
 112     }
 113   else if ((tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE) != 0)
 114     {
 115       fprintf(killLogFilePtr,
 116               "%d.Service is running!\n",
 117               trialCount);
 118     }
 119 #endif
 120   GNUNET_SCHEDULER_add_now (sched, &kill_task, &a);
 121 }
 122
 123
 124 static void
 125 do_test (void *cbData,
 126          const struct GNUNET_SCHEDULER_TaskContext *tc)
 127 {
 128   GNUNET_CLIENT_service_test(sched, "do-nothing",
 129                              cfg, TIMEOUT,
 130                              &do_nothing_restarted_notify_task, NULL);
 131 }
 132
 133
 134 static void
 135 shutdown_cont (void *cls, int reason)
 136 {
 137   trialCount++;
 138   startedWaitingAt = GNUNET_TIME_absolute_get();
 139   GNUNET_SCHEDULER_add_delayed (sched,
 140                                 waitedFor,
 141                                 &do_test,
 142                                 NULL);
 143 }
 144 static void
 145 kill_task (void *cbData,
 146                    const struct GNUNET_SCHEDULER_TaskContext *tc)
 147 {
 148   static struct GNUNET_CLIENT_Connection * doNothingConnection = NULL;
 149
 150   if (NULL != cbData)
 151     {
 152       waitedFor = GNUNET_TIME_absolute_get_duration (startedWaitingAt);
 153
 154 #if LOG_BACKOFF
 155       fprintf(killLogFilePtr,
 156               "Waited for: %llu ms\n",
 157               (unsigned long long) waitedFor.value);
 158 #endif
 159     }
 160   else
 161     {
 162       waitedFor.value = 0;
 163     }
 164   /* Connect to the doNothing task */
 165   doNothingConnection = GNUNET_CLIENT_connect (sched, "do-nothing", cfg);
 166 #if LOG_BACKOFF
 167   if (NULL == doNothingConnection)
 168     fprintf(killLogFilePtr,
 169             "Unable to connect to do-nothing process!\n");
 170 #endif
 171   if (trialCount == 12) {
 172     GNUNET_ARM_stop_service (arm,
 173                              "do-nothing",
 174                              TIMEOUT,
 175                              &arm_notify_stop, NULL);
 176     ok = 0;
 177     return;
 178   }
 179
 180   /* Use the created connection to kill the doNothingTask */
 181   GNUNET_CLIENT_service_shutdown(sched,
 182                                  doNothingConnection,
 183                                  TIMEOUT,
 184                                  &shutdown_cont, NULL);
 185 }
 186
 187
 188 static void
 189 task (void *cls,
 190       struct GNUNET_SCHEDULER_Handle *s,
 191       char *const *args,
 192       const char *cfgfile,
 193       const struct GNUNET_CONFIGURATION_Handle *c)
 194 {
 195   cfg = c;
 196   sched = s;
 197
 198   arm = GNUNET_ARM_connect (cfg, sched, NULL);
 199 #if START_ARM
 200   GNUNET_ARM_start_service (arm, "arm", GNUNET_TIME_UNIT_ZERO, &arm_notify, NULL);
 201 #else
 202   arm_do_nothing (NULL, GNUNET_YES);
 203 #endif
 204 }
 205
 206 static int
 207 check ()
 208 {
 209   char *const argv[] = {
 210     "test-arm-api",
 211     "-c", "test_arm_api_data.conf",
 212 #if VERBOSE
 213     "-L", "DEBUG",
 214 #endif
 215     NULL
 216   };
 217   struct GNUNET_GETOPT_CommandLineOption options[] = {
 218     GNUNET_GETOPT_OPTION_END
 219   };
 220
 221   /* Running ARM  and running the do_nothing task */
 222   GNUNET_assert (GNUNET_OK ==
 223                  GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 224                                      argv,
 225                                      "test-exponential-backoff",
 226                                      "nohelp", options, &task, NULL));
 227
 228
 229   return ok;
 230 }
 231
 232 static int
 233 init()
 234 {
 235 #if LOG_BACKOFF
 236   killLogFileName = GNUNET_DISK_mktemp("exponential-backoff-waiting.log");
 237   if (NULL == (killLogFilePtr = FOPEN(killLogFileName, "w"))) {
 238     GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "fopen", killLogFileName);
 239     GNUNET_free (killLogFileName);
 240     return GNUNET_SYSERR;
 241   }
 242 #endif
 243   return GNUNET_OK;
 244 }
 245
 246
 247 static void
 248 houseKeep()
 249 {
 250 #if LOG_BACKOFF
 251   GNUNET_assert (0 == fclose (killLogFilePtr));
 252   GNUNET_free(killLogFileName);
 253 #endif
 254 }
 255
 256
 257 int
 258 main (int argc, char *argv[])
 259 {
 260   int ret;
 261
 262   GNUNET_log_setup ("test-exponential-backoff",
 263 #if VERBOSE
 264                     "DEBUG",
 265 #else
 266                     "WARNING",
 267 #endif
 268                     NULL);
 269
 270   init();
 271   ret = check ();
 272   houseKeep();
 273   return ret;
 274 }
 275
 276 /* end of test_exponential_backoff.c */