/*
This file is part of GNUnet.
- (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2009, 2010, 2011, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#include "gnunet-service-fs_pe.h"
#include "gnunet-service-fs_pr.h"
+/**
+ * Maximum size of the datastore queue for P2P operations. Needs to
+ * be large enough to queue MAX_QUEUE_PER_PEER operations for roughly
+ * the number of active (connected) peers.
+ */
+#define MAX_DATASTORE_QUEUE (16 * MAX_QUEUE_PER_PEER)
+
+/**
+ * Bandwidth value of a 0-priority content (must be fairly high
+ * compared to query since content is typically significantly larger
+ * -- and more valueable since it can take many queries to get one
+ * piece of content).
+ */
+#define CONTENT_BANDWIDTH_VALUE 800
+
/**
* Hard limit on the number of results we may get from the datastore per query.
*/
#define MAX_RESULTS (100 * 1024)
+/**
+ * Collect an instane number of statistics? May cause excessive IPC.
+ */
+#define INSANE_STATISTICS GNUNET_NO
+
/**
* An active request.
*/
/**
* Array of hash codes of replies we've already seen.
*/
- GNUNET_HashCode *replies_seen;
+ struct GNUNET_HashCode *replies_seen;
/**
* Bloomfilter masking replies we've already seen.
*/
GNUNET_PEER_Id sender_pid;
+ /**
+ * Identity of the peer that we should never forward this query
+ * to since it originated this query (0 for none).
+ */
+ GNUNET_PEER_Id origin_pid;
+
/**
* Time we started the last datastore lookup.
*/
static int active_to_migration;
+/**
+ * Size of the datastore queue we assume for common requests.
+ * Determined based on the network quota.
+ */
+static unsigned int datastore_queue_size;
+
/**
* Heap with the request that will expire next at the top. Contains
* pointers of type "struct PendingRequest*"; these will *also* be
static unsigned long long max_pending_requests = (32 * 1024);
-/**
- * How many bytes should a bloomfilter be if we have already seen
- * entry_count responses? Note that BLOOMFILTER_K gives us the number
- * of bits set per entry. Furthermore, we should not re-size the
- * filter too often (to keep it cheap).
- *
- * Since other peers will also add entries but not resize the filter,
- * we should generally pick a slightly larger size than what the
- * strict math would suggest.
- *
- * @return must be a power of two and smaller or equal to 2^15.
- */
-static size_t
-compute_bloomfilter_size (unsigned int entry_count)
-{
- size_t size;
- unsigned int ideal = (entry_count * BLOOMFILTER_K) / 4;
- uint16_t max = 1 << 15;
-
- if (entry_count > max)
- return max;
- size = 8;
- while ((size < max) && (size < ideal))
- size *= 2;
- if (size > max)
- return max;
- return size;
-}
-
/**
* Recalculate our bloom filter for filtering replies. This function
* initiator (in which case we may resize to larger than mimimum size).
*
* @param pr request for which the BF is to be recomputed
- * @return GNUNET_YES if a refresh actually happened
*/
-static int
+static void
refresh_bloomfilter (struct GSF_PendingRequest *pr)
{
- unsigned int i;
- size_t nsize;
- GNUNET_HashCode mhash;
-
- nsize = compute_bloomfilter_size (pr->replies_seen_count);
- if ((pr->bf != NULL) &&
- (nsize == GNUNET_CONTAINER_bloomfilter_get_size (pr->bf)))
- return GNUNET_NO; /* size not changed */
if (pr->bf != NULL)
GNUNET_CONTAINER_bloomfilter_free (pr->bf);
pr->mingle =
GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX);
- pr->bf = GNUNET_CONTAINER_bloomfilter_init (NULL, nsize, BLOOMFILTER_K);
- for (i = 0; i < pr->replies_seen_count; i++)
- {
- GNUNET_BLOCK_mingle_hash (&pr->replies_seen[i], pr->mingle, &mhash);
- GNUNET_CONTAINER_bloomfilter_add (pr->bf, &mhash);
- }
- return GNUNET_YES;
+ pr->bf =
+ GNUNET_BLOCK_construct_bloomfilter (pr->mingle, pr->replies_seen,
+ pr->replies_seen_count);
}
* @param priority maximum outgoing cummulative request priority to use
* @param ttl current time-to-live for the request
* @param sender_pid peer ID to use for the sender when forwarding, 0 for none
+ * @param origin_pid peer ID of origin of query (do not loop back)
* @param replies_seen hash codes of known local replies
* @param replies_seen_count size of the 'replies_seen' array
* @param rh handle to call when we get a reply
struct GSF_PendingRequest *
GSF_pending_request_create_ (enum GSF_PendingRequestOptions options,
enum GNUNET_BLOCK_Type type,
- const GNUNET_HashCode * query,
- const GNUNET_HashCode * namespace,
+ const struct GNUNET_HashCode * query,
+ const struct GNUNET_HashCode * namespace,
const struct GNUNET_PeerIdentity *target,
const char *bf_data, size_t bf_size,
uint32_t mingle, uint32_t anonymity_level,
uint32_t priority, int32_t ttl,
GNUNET_PEER_Id sender_pid,
- const GNUNET_HashCode * replies_seen,
+ GNUNET_PEER_Id origin_pid,
+ const struct GNUNET_HashCode * replies_seen,
unsigned int replies_seen_count,
GSF_PendingRequestReplyHandler rh, void *rh_cls)
{
struct GSF_PendingRequest *pr;
struct GSF_PendingRequest *dpr;
+ size_t extra;
+ struct GNUNET_HashCode *eptr;
-#if DEBUG_FS > 1
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Creating request handle for `%s' of type %d\n",
GNUNET_h2s (query), type);
-#endif
+#if INSANE_STATISTICS
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop ("# Pending requests created"), 1,
GNUNET_NO);
- pr = GNUNET_malloc (sizeof (struct GSF_PendingRequest));
+#endif
+ extra = 0;
+ if (GNUNET_BLOCK_TYPE_FS_SBLOCK == type)
+ extra += sizeof (struct GNUNET_HashCode);
+ if (NULL != target)
+ extra += sizeof (struct GNUNET_PeerIdentity);
+ pr = GNUNET_malloc (sizeof (struct GSF_PendingRequest) + extra);
pr->local_result_offset =
GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX);
pr->public_data.query = *query;
+ eptr = (struct GNUNET_HashCode *) &pr[1];
if (GNUNET_BLOCK_TYPE_FS_SBLOCK == type)
{
- GNUNET_assert (NULL != namespace);
- pr->public_data.namespace = *namespace;
+ GNUNET_assert (NULL != namespace);
+ pr->public_data.namespace = eptr;
+ memcpy (eptr, namespace, sizeof (struct GNUNET_HashCode));
+ eptr++;
}
if (NULL != target)
{
- pr->public_data.target = *target;
- pr->public_data.has_target = GNUNET_YES;
+ pr->public_data.target = (struct GNUNET_PeerIdentity *) eptr;
+ memcpy (eptr, target, sizeof (struct GNUNET_PeerIdentity));
}
pr->public_data.anonymity_level = anonymity_level;
pr->public_data.priority = priority;
pr->public_data.type = type;
pr->public_data.start_time = GNUNET_TIME_absolute_get ();
pr->sender_pid = sender_pid;
+ pr->origin_pid = origin_pid;
pr->rh = rh;
pr->rh_cls = rh_cls;
GNUNET_assert ((sender_pid != 0) || (0 == (options & GSF_PRO_FORWARD_ONLY)));
{
pr->replies_seen_size = replies_seen_count;
pr->replies_seen =
- GNUNET_malloc (sizeof (GNUNET_HashCode) * pr->replies_seen_size);
+ GNUNET_malloc (sizeof (struct GNUNET_HashCode) * pr->replies_seen_size);
memcpy (pr->replies_seen, replies_seen,
- replies_seen_count * sizeof (GNUNET_HashCode));
+ replies_seen_count * sizeof (struct GNUNET_HashCode));
pr->replies_seen_count = replies_seen_count;
}
if (NULL != bf_data)
{
pr->bf =
- GNUNET_CONTAINER_bloomfilter_init (bf_data, bf_size, BLOOMFILTER_K);
+ GNUNET_CONTAINER_bloomfilter_init (bf_data, bf_size,
+ GNUNET_CONSTANTS_BLOOMFILTER_K);
pr->mingle = mingle;
}
else if ((replies_seen_count > 0) &&
(0 != (options & GSF_PRO_BLOOMFILTER_FULL_REFRESH)))
{
- GNUNET_assert (GNUNET_YES == refresh_bloomfilter (pr));
+ refresh_bloomfilter (pr);
}
- GNUNET_CONTAINER_multihashmap_put (pr_map, query, pr,
+ GNUNET_CONTAINER_multihashmap_put (pr_map,
+ &pr->public_data.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,
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);
}
}
return pr;
}
-
/**
* Obtain the public data associated with a pending request
*
if ((pra->public_data.type != prb->public_data.type) ||
(0 !=
memcmp (&pra->public_data.query, &prb->public_data.query,
- sizeof (GNUNET_HashCode))) ||
+ sizeof (struct GNUNET_HashCode))) ||
((pra->public_data.type == GNUNET_BLOCK_TYPE_FS_SBLOCK) &&
(0 !=
- memcmp (&pra->public_data.namespace, &prb->public_data.namespace,
- sizeof (GNUNET_HashCode)))))
+ memcmp (pra->public_data.namespace,
+ prb->public_data.namespace,
+ sizeof (struct GNUNET_HashCode)))))
return GNUNET_NO;
return GNUNET_OK;
}
*/
void
GSF_pending_request_update_ (struct GSF_PendingRequest *pr,
- const GNUNET_HashCode * replies_seen,
+ const struct GNUNET_HashCode * replies_seen,
unsigned int replies_seen_count)
{
unsigned int i;
- GNUNET_HashCode mhash;
+ struct GNUNET_HashCode mhash;
if (replies_seen_count + pr->replies_seen_count < pr->replies_seen_count)
return; /* integer overflow */
GNUNET_array_grow (pr->replies_seen, pr->replies_seen_size,
replies_seen_count + pr->replies_seen_count);
memcpy (&pr->replies_seen[pr->replies_seen_count], replies_seen,
- sizeof (GNUNET_HashCode) * replies_seen_count);
+ sizeof (struct GNUNET_HashCode) * replies_seen_count);
pr->replies_seen_count += replies_seen_count;
- if (GNUNET_NO == refresh_bloomfilter (pr))
- {
- /* bf not recalculated, simply extend it with new bits */
- for (i = 0; i < replies_seen_count; i++)
- {
- GNUNET_BLOCK_mingle_hash (&replies_seen[i], pr->mingle, &mhash);
- GNUNET_CONTAINER_bloomfilter_add (pr->bf, &mhash);
- }
- }
+ refresh_bloomfilter (pr);
}
else
{
pr->mingle =
GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX);
pr->bf =
- GNUNET_CONTAINER_bloomfilter_init (NULL,
- compute_bloomfilter_size
- (replies_seen_count),
- BLOOMFILTER_K);
+ GNUNET_BLOCK_construct_bloomfilter (pr->mingle, replies_seen,
+ replies_seen_count);
}
- for (i = 0; i < pr->replies_seen_count; i++)
+ else
{
- GNUNET_BLOCK_mingle_hash (&replies_seen[i], pr->mingle, &mhash);
- GNUNET_CONTAINER_bloomfilter_add (pr->bf, &mhash);
+ for (i = 0; i < pr->replies_seen_count; i++)
+ {
+ GNUNET_BLOCK_mingle_hash (&replies_seen[i], pr->mingle, &mhash);
+ GNUNET_CONTAINER_bloomfilter_add (pr->bf, &mhash);
+ }
}
}
}
{
char lbuf[GNUNET_SERVER_MAX_MESSAGE_SIZE];
struct GetMessage *gm;
- GNUNET_HashCode *ext;
+ struct GNUNET_HashCode *ext;
size_t msize;
unsigned int k;
uint32_t bm;
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));
bm |= GET_MESSAGE_BIT_SKS_NAMESPACE;
k++;
}
- if (GNUNET_YES == pr->public_data.has_target)
+ if (NULL != pr->public_data.target)
{
bm |= GET_MESSAGE_BIT_TRANSMIT_TO;
k++;
}
bf_size = GNUNET_CONTAINER_bloomfilter_get_size (pr->bf);
- msize = sizeof (struct GetMessage) + bf_size + k * sizeof (GNUNET_HashCode);
+ msize = sizeof (struct GetMessage) + bf_size + k * sizeof (struct GNUNET_HashCode);
GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
if (buf_size < msize)
return msize;
else
prio = 0;
pr->public_data.priority -= prio;
+ pr->public_data.num_transmissions++;
+ pr->public_data.respect_offered += prio;
gm->priority = htonl (prio);
now = GNUNET_TIME_absolute_get ();
ttl = (int64_t) (pr->public_data.ttl.abs_value - now.abs_value);
gm->filter_mutator = htonl (pr->mingle);
gm->hash_bitmap = htonl (bm);
gm->query = pr->public_data.query;
- ext = (GNUNET_HashCode *) & gm[1];
+ ext = (struct GNUNET_HashCode *) & gm[1];
k = 0;
if (!do_route)
GNUNET_PEER_resolve (pr->sender_pid,
(struct GNUNET_PeerIdentity *) &ext[k++]);
if (GNUNET_BLOCK_TYPE_FS_SBLOCK == pr->public_data.type)
- memcpy (&ext[k++], &pr->public_data.namespace, sizeof (GNUNET_HashCode));
- if (GNUNET_YES == pr->public_data.has_target)
- ext[k++] = pr->public_data.target.hashPubKey;
+ memcpy (&ext[k++], pr->public_data.namespace, sizeof (struct GNUNET_HashCode));
+ if (NULL != pr->public_data.target)
+ memcpy (&ext[k++],
+ pr->public_data.target,
+ sizeof (struct GNUNET_PeerIdentity));
if (pr->bf != NULL)
GNUNET_assert (GNUNET_SYSERR !=
GNUNET_CONTAINER_bloomfilter_get_raw_data (pr->bf,
* @return GNUNET_YES (we should continue to iterate)
*/
static int
-clean_request (void *cls, const GNUNET_HashCode * key, void *value)
+clean_request (void *cls, const struct 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;
}
GNUNET_PEER_change_rc (pr->sender_pid, -1);
pr->sender_pid = 0;
+ GNUNET_PEER_change_rc (pr->origin_pid, -1);
+ pr->origin_pid = 0;
if (NULL != pr->hnode)
{
GNUNET_CONTAINER_heap_remove_node (pr->hnode);
* @return GNUNET_YES (we should continue to iterate)
*/
static int
-process_reply (void *cls, const GNUNET_HashCode * key, void *value)
+process_reply (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ProcessReplyClosure *prq = cls;
struct GSF_PendingRequest *pr = value;
- GNUNET_HashCode chash;
+ struct 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);
prq->eval =
GNUNET_BLOCK_evaluate (GSF_block_ctx, prq->type, key, &pr->bf, pr->mingle,
- &pr->public_data.namespace,
+ pr->public_data.namespace,
(prq->type ==
GNUNET_BLOCK_TYPE_FS_SBLOCK) ?
- sizeof (GNUNET_HashCode) : 0, prq->data,
+ sizeof (struct GNUNET_HashCode) : 0, prq->data,
prq->size);
switch (prq->eval)
{
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:
+#if INSANE_STATISTICS
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
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Duplicate response, discarding.\n");
return GNUNET_YES; /* duplicate */
case GNUNET_BLOCK_EVALUATION_RESULT_INVALID:
return GNUNET_YES; /* wrong namespace */
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);
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;
}
*
* @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 %s because datastore is full\n",
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_remaining (min_expiration), GNUNET_YES));
+ 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 %s\n",
+ GNUNET_STRINGS_relative_time_to_string (mig_pause, GNUNET_YES));
+ GSF_block_peer_migration_ (cp, GNUNET_TIME_relative_to_absolute (mig_pause));
}
}
GNUNET_free (pmc);
- /* FIXME: should we really update the load value on failure? */
- if (NULL != datastore_put_load)
- GNUNET_LOAD_update (datastore_put_load, delay.rel_value);
- if (GNUNET_OK == success)
- return;
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop ("# Datastore `PUT' failures"), 1,
GNUNET_NO);
* @param cls closure
* @param exp when will this value expire
* @param key key of the result
- * @param get_path NULL-terminated array of pointers
- * to the peers on reverse GET path (or NULL if not recorded)
- * @param put_path NULL-terminated array of pointers
- * to the peers on the PUT path (or NULL if not recorded)
+ * @param get_path peers on reply path (or NULL if not recorded)
+ * @param get_path_length number of entries in get_path
+ * @param put_path peers on the PUT path (or NULL if not recorded)
+ * @param put_path_length number of entries in get_path
* @param type type of the result
* @param size number of bytes in data
* @param data pointer to the result data
*/
static void
handle_dht_reply (void *cls, struct GNUNET_TIME_Absolute exp,
- const GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *const *get_path,
- const struct GNUNET_PeerIdentity *const *put_path,
- enum GNUNET_BLOCK_Type type, size_t size, const void *data)
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data)
{
struct GSF_PendingRequest *pr = cls;
struct ProcessReplyClosure prq;
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;
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);
}
}
}
const void *xquery;
size_t xquery_size;
struct GNUNET_PeerIdentity pi;
- char buf[sizeof (GNUNET_HashCode) * 2];
+ char buf[sizeof (struct GNUNET_HashCode) * 2] GNUNET_ALIGN;
if (0 != pr->public_data.anonymity_level)
return;
if (GNUNET_BLOCK_TYPE_FS_SBLOCK == pr->public_data.type)
{
xquery = buf;
- memcpy (buf, &pr->public_data.namespace, sizeof (GNUNET_HashCode));
- xquery_size = sizeof (GNUNET_HashCode);
+ memcpy (buf, pr->public_data.namespace, sizeof (struct GNUNET_HashCode));
+ xquery_size = sizeof (struct GNUNET_HashCode);
}
if (0 != (pr->public_data.options & GSF_PRO_FORWARD_ONLY))
{
xquery_size += sizeof (struct GNUNET_PeerIdentity);
}
pr->gh =
- GNUNET_DHT_get_start (GSF_dht, GNUNET_TIME_UNIT_FOREVER_REL,
+ GNUNET_DHT_get_start (GSF_dht,
pr->public_data.type, &pr->public_data.query,
- DEFAULT_GET_REPLICATION,
- GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, pr->bf,
- pr->mingle, xquery, xquery_size, &handle_dht_reply,
- pr);
+ 5 /* DEFAULT_GET_REPLICATION */ ,
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ /* FIXME: can no longer pass pr->bf/pr->mingle... */
+ xquery, xquery_size, &handle_dht_reply, pr);
}
struct GSF_PendingRequest *pr = cls;
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Datastore lookup already took %llu ms!\n"),
- (unsigned long long)
- GNUNET_TIME_absolute_get_duration (pr->qe_start).rel_value);
+ _("Datastore lookup already took %s!\n"),
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration (pr->qe_start), GNUNET_YES));
pr->warn_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES, &warn_delay_task,
pr);
struct GSF_PendingRequest *pr = cls;
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("On-demand lookup already took %llu ms!\n"),
- (unsigned long long)
- GNUNET_TIME_absolute_get_duration (pr->qe_start).rel_value);
+ _("On-demand lookup already took %s!\n"),
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration (pr->qe_start), GNUNET_YES));
pr->warn_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
&odc_warn_delay_task, pr);
* maybe 0 if no unique identifier is available
*/
static void
-process_local_reply (void *cls, const GNUNET_HashCode * key, size_t size,
+process_local_reply (void *cls, const struct GNUNET_HashCode * key, size_t size,
const void *data, enum GNUNET_BLOCK_Type type,
uint32_t priority, uint32_t anonymity,
struct GNUNET_TIME_Absolute expiration, uint64_t uid)
struct GSF_PendingRequest *pr = cls;
GSF_LocalLookupContinuation cont;
struct ProcessReplyClosure prq;
- GNUNET_HashCode query;
+ struct GNUNET_HashCode query;
unsigned int old_rf;
GNUNET_SCHEDULER_cancel (pr->warn_task);
pr->qe = NULL;
if (NULL == key)
{
+#if INSANE_STATISTICS
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# Datastore lookups concluded (no results)"),
1, GNUNET_NO);
+#endif
}
if (GNUNET_NO == pr->have_first_uid)
{
}
if (NULL == key)
{
-#if DEBUG_FS > 1
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"No further local responses available.\n");
-#endif
+#if INSANE_STATISTICS
if ((pr->public_data.type == GNUNET_BLOCK_TYPE_FS_DBLOCK) ||
(pr->public_data.type == GNUNET_BLOCK_TYPE_FS_IBLOCK))
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# requested DBLOCK or IBLOCK not found"), 1,
GNUNET_NO);
+#endif
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 > 1
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,
/* queue priority */ ,
(0 !=
(GSF_PRO_PRIORITY_UNLIMITED &
- pr->public_data.options)) ? UINT_MAX : 1
+ pr->public_data.options)) ? UINT_MAX :
+ datastore_queue_size
/* max queue size */ ,
GNUNET_TIME_UNIT_FOREVER_REL,
&process_local_reply, pr);
if (NULL != pr->qe)
- {
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# Datastore lookups concluded (error queueing)"),
- 1, GNUNET_NO);
return; /* we're done */
- }
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop
+ ("# Datastore lookups concluded (error queueing)"),
+ 1, GNUNET_NO);
goto check_error_and_continue;
}
old_rf = pr->public_data.results_found;
/* queue priority */ ,
(0 !=
(GSF_PRO_PRIORITY_UNLIMITED &
- pr->public_data.options)) ? UINT_MAX : 1
+ pr->public_data.options)) ? UINT_MAX :
+ datastore_queue_size
/* max queue size */ ,
GNUNET_TIME_UNIT_FOREVER_REL,
&process_local_reply, pr);
{
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
- ("# Datastore lookups concluded (found ultimate result)"),
+ ("# Datastore lookups concluded (found last result)"),
1, GNUNET_NO);
goto check_error_and_continue;
}
((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)"),
/* queue priority */ ,
(0 !=
(GSF_PRO_PRIORITY_UNLIMITED & pr->
- public_data.options)) ? UINT_MAX : 1
+ public_data.options)) ? UINT_MAX :
+ datastore_queue_size
/* max queue size */ ,
GNUNET_TIME_UNIT_FOREVER_REL,
&process_local_reply, pr);
}
+/**
+ * Is the given target a legitimate peer for forwarding the given request?
+ *
+ * @param pr request
+ * @param target
+ * @return GNUNET_YES if this request could be forwarded to the given peer
+ */
+int
+GSF_pending_request_test_target_ (struct GSF_PendingRequest *pr,
+ const struct GNUNET_PeerIdentity *target)
+{
+ struct GNUNET_PeerIdentity pi;
+
+ if (0 == pr->origin_pid)
+ return GNUNET_YES;
+ GNUNET_PEER_resolve (pr->origin_pid, &pi);
+ return (0 ==
+ memcmp (&pi, target,
+ sizeof (struct GNUNET_PeerIdentity))) ? GNUNET_NO :
+ GNUNET_YES;
+}
+
+
/**
* Look up the request in the local datastore.
*
pr->warn_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES, &warn_delay_task,
pr);
+#if INSANE_STATISTICS
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop ("# Datastore lookups initiated"), 1,
GNUNET_NO);
+#endif
pr->qe =
GNUNET_DATASTORE_get_key (GSF_dsh, pr->local_result_offset++,
&pr->public_data.query,
/* queue priority */ ,
(0 !=
(GSF_PRO_PRIORITY_UNLIMITED & pr->
- public_data.options)) ? UINT_MAX : 1
+ public_data.options)) ? UINT_MAX :
+ datastore_queue_size
/* max queue size */ ,
GNUNET_TIME_UNIT_FOREVER_REL,
&process_local_reply, pr);
if (NULL != pr->qe)
- {
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# Datastore lookups concluded (error queueing)"),
- 1, GNUNET_NO);
-
return;
- }
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop
+ ("# Datastore lookups concluded (error queueing)"),
+ 1, GNUNET_NO);
GNUNET_SCHEDULER_cancel (pr->warn_task);
pr->warn_task = GNUNET_SCHEDULER_NO_TASK;
pr->llc_cont = NULL;
size_t dsize;
enum GNUNET_BLOCK_Type type;
struct GNUNET_TIME_Absolute expiration;
- GNUNET_HashCode query;
+ struct GNUNET_HashCode query;
struct ProcessReplyClosure prq;
struct GNUNET_TIME_Relative block_time;
double putl;
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 !=
GNUNET_NO);
/* now, lookup 'query' */
prq.data = (const void *) &put[1];
- if (NULL != cp)
- prq.sender = cp;
- else
- prq.sender = NULL;
+ prq.sender = cp;
prq.size = dsize;
prq.type = type;
prq.expiration = expiration;
GSF_connected_peer_change_preference_ (cp,
CONTENT_BANDWIDTH_VALUE +
1000 * prq.priority);
- GSF_get_peer_performance_data_ (cp)->trust += prq.priority;
+ GSF_get_peer_performance_data_ (cp)->respect += prq.priority;
}
if ((GNUNET_YES == active_to_migration) &&
+ (NULL != cp) &&
(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;
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
+ else if (NULL != cp)
{
-#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) &&
- ((GNUNET_YES != active_to_migration) ||
- (putl > 2.5 * (1 + prq.priority))))
+ if ( (NULL != cp) &&
+ (GNUNET_NO == prq.request_found) &&
+ ( (GNUNET_YES != active_to_migration) ||
+ (putl > 2.5 * (1 + prq.priority)) ) )
{
if (GNUNET_YES != active_to_migration)
putl = 1.0 + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 5);
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;
}
void
GSF_pending_request_init_ ()
{
+ unsigned long long dqs;
+
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_number (GSF_cfg, "fs",
"MAX_PENDING_REQUESTS",
&max_pending_requests))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _
- ("Configuration fails to specify `%s', assuming default value."),
- "MAX_PENDING_REQUESTS");
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_INFO,
+ "fs", "MAX_PENDING_REQUESTS");
}
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_size (GSF_cfg, "fs", "DATASTORE_QUEUE_SIZE",
+ &dqs))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_INFO,
+ "fs", "DATASTORE_QUEUE_SIZE");
+ dqs = 1024;
+ }
+ datastore_queue_size = (unsigned int) dqs;
+
active_to_migration =
GNUNET_CONFIGURATION_get_value_yesno (GSF_cfg, "FS", "CONTENT_CACHING");
datastore_put_load = GNUNET_LOAD_value_init (DATASTORE_LOAD_AUTODECLINE);
- pr_map = GNUNET_CONTAINER_multihashmap_create (32 * 1024);
+ pr_map = GNUNET_CONTAINER_multihashmap_create (32 * 1024, GNUNET_YES);
requests_by_expiration_heap =
GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
}
projects / oweals / gnunet.git / blobdiff