- fixed string to address parsing
[oweals/gnunet.git] / src / fs / gnunet-service-fs_pr.c
index aa18e2fc832a1ff5ad9dc59c64c612c343192f21..d4b448185882cf53adb82d0d47501021a7ea73e6 100644 (file)
@@ -278,11 +278,9 @@ GSF_pending_request_create_ (enum GSF_PendingRequestOptions options,
   struct GSF_PendingRequest *pr;
   struct GSF_PendingRequest *dpr;
 
-#if DEBUG_FS
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Creating request handle for `%s' of type %d\n",
               GNUNET_h2s (query), type);
-#endif
   GNUNET_STATISTICS_update (GSF_stats,
                             gettext_noop ("# Pending requests created"), 1,
                             GNUNET_NO);
@@ -345,7 +343,7 @@ GSF_pending_request_create_ (enum GSF_PendingRequestOptions options,
   }
   GNUNET_CONTAINER_multihashmap_put (pr_map, query, pr,
                                      GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
-  if (0 != (options & GSF_PRO_REQUEST_EXPIRES))
+  if (0 == (options & GSF_PRO_REQUEST_NEVER_EXPIRES))
   {
     pr->hnode =
         GNUNET_CONTAINER_heap_insert (requests_by_expiration_heap, pr,
@@ -358,9 +356,10 @@ GSF_pending_request_create_ (enum GSF_PendingRequestOptions options,
       GNUNET_assert (dpr != NULL);
       if (pr == dpr)
         break;                  /* let the request live briefly... */
-      dpr->rh (dpr->rh_cls, GNUNET_BLOCK_EVALUATION_REQUEST_VALID, dpr,
-               UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_ABS, GNUNET_BLOCK_TYPE_ANY,
-               NULL, 0);
+      if (NULL != dpr->rh)
+       dpr->rh (dpr->rh_cls, GNUNET_BLOCK_EVALUATION_REQUEST_VALID, dpr,
+                UINT32_MAX, GNUNET_TIME_UNIT_FOREVER_ABS, GNUNET_TIME_UNIT_FOREVER_ABS,
+                 GNUNET_BLOCK_TYPE_ANY, NULL, 0);
       GSF_pending_request_cancel_ (dpr, GNUNET_YES);
     }
   }
@@ -370,7 +369,6 @@ GSF_pending_request_create_ (enum GSF_PendingRequestOptions options,
   return pr;
 }
 
-
 /**
  * Obtain the public data associated with a pending request
  *
@@ -489,12 +487,10 @@ GSF_pending_request_get_message_ (struct GSF_PendingRequest *pr,
   int64_t ttl;
   int do_route;
 
-#if DEBUG_FS
   if (buf_size > 0)
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Building request message for `%s' of type %d\n",
                 GNUNET_h2s (&pr->public_data.query), pr->public_data.type);
-#endif
   k = 0;
   bm = 0;
   do_route = (0 == (pr->public_data.options & GSF_PRO_FORWARD_ONLY));
@@ -574,10 +570,8 @@ clean_request (void *cls, const GNUNET_HashCode * key, void *value)
   struct GSF_PendingRequest *pr = value;
   GSF_LocalLookupContinuation cont;
 
-#if DEBUG_FS
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Cleaning up pending request for `%s'.\n", GNUNET_h2s (key));
-#endif
   if (NULL != (cont = pr->llc_cont))
   {
     pr->llc_cont = NULL;
@@ -774,14 +768,13 @@ process_reply (void *cls, const GNUNET_HashCode * key, void *value)
   struct ProcessReplyClosure *prq = cls;
   struct GSF_PendingRequest *pr = value;
   GNUNET_HashCode chash;
+  struct GNUNET_TIME_Absolute last_transmission;
 
   if (NULL == pr->rh)
     return GNUNET_YES;
-#if DEBUG_FS
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Matched result (type %u) for query `%s' with pending request\n",
               (unsigned int) prq->type, GNUNET_h2s (key));
-#endif
   GNUNET_STATISTICS_update (GSF_stats,
                             gettext_noop ("# replies received and matched"), 1,
                             GNUNET_NO);
@@ -803,19 +796,19 @@ process_reply (void *cls, const GNUNET_HashCode * key, void *value)
     GNUNET_LOAD_update (GSF_rt_entry_lifetime,
                         GNUNET_TIME_absolute_get_duration (pr->
                                                            public_data.start_time).rel_value);
+    if (!GSF_request_plan_reference_get_last_transmission_ (pr->public_data.rpr_head, prq->sender, &last_transmission))
+      last_transmission.abs_value = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value;
     /* pass on to other peers / local clients */
     pr->rh (pr->rh_cls, prq->eval, pr, prq->anonymity_level, prq->expiration,
-            prq->type, prq->data, prq->size);
+            last_transmission, prq->type, prq->data, prq->size);
     return GNUNET_YES;
   case GNUNET_BLOCK_EVALUATION_OK_DUPLICATE:
     GNUNET_STATISTICS_update (GSF_stats,
                               gettext_noop
                               ("# duplicate replies discarded (bloomfilter)"),
                               1, GNUNET_NO);
-#if DEBUG_FS && 0
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Duplicate response `%s', discarding.\n", GNUNET_h2s (&mhash));
-#endif
+                "Duplicate response, discarding.\n");
     return GNUNET_YES;          /* duplicate */
   case GNUNET_BLOCK_EVALUATION_RESULT_INVALID:
     return GNUNET_YES;          /* wrong namespace */
@@ -835,11 +828,9 @@ process_reply (void *cls, const GNUNET_HashCode * key, void *value)
   GSF_pending_request_update_ (pr, &chash, 1);
   if (NULL == prq->sender)
   {
-#if DEBUG_FS
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Found result for query `%s' in local datastore\n",
                 GNUNET_h2s (key));
-#endif
     GNUNET_STATISTICS_update (GSF_stats,
                               gettext_noop ("# results found locally"), 1,
                               GNUNET_NO);
@@ -854,8 +845,10 @@ process_reply (void *cls, const GNUNET_HashCode * key, void *value)
   pr->public_data.results_found++;
   prq->request_found = GNUNET_YES;
   /* finally, pass on to other peer / local client */
+  if (!GSF_request_plan_reference_get_last_transmission_ (pr->public_data.rpr_head, prq->sender, &last_transmission))
+    last_transmission.abs_value = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value;
   pr->rh (pr->rh_cls, prq->eval, pr, prq->anonymity_level, prq->expiration,
-          prq->type, prq->data, prq->size);
+          last_transmission, prq->type, prq->data, prq->size);
   return GNUNET_YES;
 }
 
@@ -890,49 +883,72 @@ struct PutMigrationContext
  *
  * @param cls closure
  * @param success GNUNET_SYSERR on failure
+ * @param min_expiration minimum expiration time required for content to be stored
  * @param msg NULL on success, otherwise an error message
  */
 static void
-put_migration_continuation (void *cls, int success, const char *msg)
+put_migration_continuation (void *cls, int success, 
+                           struct GNUNET_TIME_Absolute min_expiration,
+                           const char *msg)
 {
   struct PutMigrationContext *pmc = cls;
-  struct GNUNET_TIME_Relative delay;
-  struct GNUNET_TIME_Relative block_time;
   struct GSF_ConnectedPeer *cp;
+  struct GNUNET_TIME_Relative mig_pause;
   struct GSF_PeerPerformanceData *ppd;
 
-  delay = GNUNET_TIME_absolute_get_duration (pmc->start);
+  if (NULL != datastore_put_load)
+  {
+    if (GNUNET_SYSERR != success)
+    {
+      GNUNET_LOAD_update (datastore_put_load, 
+                         GNUNET_TIME_absolute_get_duration (pmc->start).rel_value);
+    }
+    else
+    {
+      /* on queue failure / timeout, increase the put load dramatically */
+      GNUNET_LOAD_update (datastore_put_load, 
+                         GNUNET_TIME_UNIT_MINUTES.rel_value);
+    }
+  }
   cp = GSF_peer_get_ (&pmc->origin);
-  if ((GNUNET_OK != success) && (GNUNET_NO == pmc->requested))
+  if (GNUNET_OK == success)
   {
-    /* block migration for a bit... */
     if (NULL != cp)
     {
       ppd = GSF_get_peer_performance_data_ (cp);
-      ppd->migration_duplication++;
-      block_time =
-          GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
-                                         5 * ppd->migration_duplication +
-                                         GNUNET_CRYPTO_random_u32
-                                         (GNUNET_CRYPTO_QUALITY_WEAK, 5));
-      GSF_block_peer_migration_ (cp, block_time);
+      ppd->migration_delay.rel_value /= 2;
     }
+    GNUNET_free (pmc);
+    return;
   }
-  else
+  if ( (GNUNET_NO == success) && 
+       (GNUNET_NO == pmc->requested) && 
+       (NULL != cp) )
   {
-    if (NULL != cp)
+    ppd = GSF_get_peer_performance_data_ (cp);
+    if (min_expiration.abs_value > 0)
     {
-      ppd = GSF_get_peer_performance_data_ (cp);
-      ppd->migration_duplication = 0;   /* reset counter */
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                 "Asking to stop migration for %llu ms because datastore is full\n",
+                 (unsigned long long) GNUNET_TIME_absolute_get_remaining (min_expiration).rel_value);
+      GSF_block_peer_migration_ (cp, min_expiration);      
+    }
+    else
+    {
+      ppd->migration_delay = GNUNET_TIME_relative_max (GNUNET_TIME_UNIT_SECONDS,
+                                                      ppd->migration_delay);
+      ppd->migration_delay = GNUNET_TIME_relative_min (GNUNET_TIME_UNIT_HOURS,
+                                                      ppd->migration_delay);
+      mig_pause.rel_value = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                     ppd->migration_delay.rel_value);
+      ppd->migration_delay = GNUNET_TIME_relative_multiply (ppd->migration_delay, 2);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                 "Replicated content already exists locally, asking to stop migration for %llu ms\n",
+                 (unsigned long long) mig_pause.rel_value);
+      GSF_block_peer_migration_ (cp, GNUNET_TIME_relative_to_absolute (mig_pause));
     }
   }
   GNUNET_free (pmc);
-  /* on failure, increase the put load dramatically */
-  if (NULL != datastore_put_load)
-    GNUNET_LOAD_update (datastore_put_load, 
-                       GNUNET_TIME_UNIT_HOURS.rel_value);
-  if (GNUNET_OK == success)
-    return;
   GNUNET_STATISTICS_update (GSF_stats,
                             gettext_noop ("# Datastore `PUT' failures"), 1,
                             GNUNET_NO);
@@ -1001,17 +1017,18 @@ handle_dht_reply (void *cls, struct GNUNET_TIME_Absolute exp,
   memset (&prq, 0, sizeof (prq));
   prq.data = data;
   prq.expiration = exp;
+  /* do not allow migrated content to live longer than 1 year */
+  prq.expiration = GNUNET_TIME_absolute_min (GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_YEARS),
+                                            prq.expiration);
   prq.size = size;
   prq.type = type;
   process_reply (&prq, key, pr);
   if ((GNUNET_YES == active_to_migration) &&
       (GNUNET_NO == test_put_load_too_high (prq.priority)))
   {
-#if DEBUG_FS
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Replicating result for query `%s' with priority %u\n",
                 GNUNET_h2s (key), prq.priority);
-#endif
     pmc = GNUNET_malloc (sizeof (struct PutMigrationContext));
     pmc->start = GNUNET_TIME_absolute_get ();
     pmc->requested = GNUNET_YES;
@@ -1023,7 +1040,7 @@ handle_dht_reply (void *cls, struct GNUNET_TIME_Absolute exp,
                               GNUNET_CONSTANTS_SERVICE_TIMEOUT,
                               &put_migration_continuation, pmc))
     {
-      put_migration_continuation (pmc, GNUNET_NO, NULL);
+      put_migration_continuation (pmc, GNUNET_SYSERR, GNUNET_TIME_UNIT_ZERO_ABS, NULL);
     }
   }
 }
@@ -1185,10 +1202,8 @@ process_local_reply (void *cls, const GNUNET_HashCode * key, size_t size,
   }
   if (NULL == key)
   {
-#if DEBUG_FS
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
                 "No further local responses available.\n");
-#endif
     if ((pr->public_data.type == GNUNET_BLOCK_TYPE_FS_DBLOCK) ||
         (pr->public_data.type == GNUNET_BLOCK_TYPE_FS_IBLOCK))
       GNUNET_STATISTICS_update (GSF_stats,
@@ -1197,17 +1212,13 @@ process_local_reply (void *cls, const GNUNET_HashCode * key, size_t size,
                                 GNUNET_NO);
     goto check_error_and_continue;
   }
-#if DEBUG_FS
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Received reply for `%s' of type %d with UID %llu from datastore.\n",
               GNUNET_h2s (key), type, (unsigned long long) uid);
-#endif
   if (type == GNUNET_BLOCK_TYPE_FS_ONDEMAND)
   {
-#if DEBUG_FS
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Found ONDEMAND block, performing on-demand encoding\n");
-#endif
     GNUNET_STATISTICS_update (GSF_stats,
                               gettext_noop
                               ("# on-demand blocks matched requests"), 1,
@@ -1321,9 +1332,7 @@ process_local_reply (void *cls, const GNUNET_HashCode * key, size_t size,
       ((GNUNET_YES == GSF_test_get_load_too_high_ (0)) ||
        (pr->public_data.results_found > 5 + 2 * pr->public_data.priority)))
   {
-#if DEBUG_FS > 2
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Load too high, done with request\n");
-#endif
     GNUNET_STATISTICS_update (GSF_stats,
                               gettext_noop
                               ("# Datastore lookups concluded (load too high)"),
@@ -1484,6 +1493,9 @@ GSF_handle_p2p_content_ (struct GSF_ConnectedPeer *cp,
   dsize = msize - sizeof (struct PutMessage);
   type = ntohl (put->type);
   expiration = GNUNET_TIME_absolute_ntoh (put->expiration);
+  /* do not allow migrated content to live longer than 1 year */
+  expiration = GNUNET_TIME_absolute_min (GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_YEARS),
+                                        expiration);
   if (type == GNUNET_BLOCK_TYPE_FS_ONDEMAND)
     return GNUNET_SYSERR;
   if (GNUNET_OK !=
@@ -1519,11 +1531,9 @@ GSF_handle_p2p_content_ (struct GSF_ConnectedPeer *cp,
   if ((GNUNET_YES == active_to_migration) &&
       (GNUNET_NO == test_put_load_too_high (prq.priority)))
   {
-#if DEBUG_FS
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Replicating result for query `%s' with priority %u\n",
                 GNUNET_h2s (&query), prq.priority);
-#endif
     pmc = GNUNET_malloc (sizeof (struct PutMigrationContext));
     pmc->start = GNUNET_TIME_absolute_get ();
     pmc->requested = prq.request_found;
@@ -1538,17 +1548,15 @@ GSF_handle_p2p_content_ (struct GSF_ConnectedPeer *cp,
                               GNUNET_CONSTANTS_SERVICE_TIMEOUT,
                               &put_migration_continuation, pmc))
     {
-      put_migration_continuation (pmc, GNUNET_NO, NULL);
+      put_migration_continuation (pmc, GNUNET_SYSERR, GNUNET_TIME_UNIT_ZERO_ABS, NULL);
     }
   }
   else
   {
-#if DEBUG_FS
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Choosing not to keep content `%s' (%d/%d)\n",
                 GNUNET_h2s (&query), active_to_migration,
                 test_put_load_too_high (prq.priority));
-#endif
   }
   putl = GNUNET_LOAD_get_load (datastore_put_load);
   if ((NULL != (cp = prq.sender)) && (GNUNET_NO == prq.request_found) &&
@@ -1563,7 +1571,13 @@ GSF_handle_p2p_content_ (struct GSF_ConnectedPeer *cp,
                                        GNUNET_CRYPTO_random_u32
                                        (GNUNET_CRYPTO_QUALITY_WEAK,
                                         (unsigned int) (60000 * putl * putl)));
-    GSF_block_peer_migration_ (cp, block_time);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+               "Asking to stop migration for %llu ms because of load %f and events %d/%d\n",
+               (unsigned long long) block_time.rel_value,
+               putl,
+               active_to_migration,
+               (GNUNET_NO == prq.request_found));
+    GSF_block_peer_migration_ (cp, GNUNET_TIME_relative_to_absolute (block_time));
   }
   return GNUNET_OK;
 }