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[GNUnet-SVN] r31037 - gnunet/src/gns
From: |
gnunet |
Subject: |
[GNUnet-SVN] r31037 - gnunet/src/gns |
Date: |
Wed, 4 Dec 2013 13:43:29 +0100 |
Author: wachs
Date: 2013-12-04 13:43:29 +0100 (Wed, 04 Dec 2013)
New Revision: 31037
Modified:
gnunet/src/gns/gnunet-service-gns_resolver.c
Log:
add cfg option to disable caching
Modified: gnunet/src/gns/gnunet-service-gns_resolver.c
===================================================================
--- gnunet/src/gns/gnunet-service-gns_resolver.c 2013-12-04 12:39:55 UTC
(rev 31036)
+++ gnunet/src/gns/gnunet-service-gns_resolver.c 2013-12-04 12:43:29 UTC
(rev 31037)
@@ -455,6 +455,10 @@
*/
static struct CacheOps *co_tail;
+/**
+ * Use namecache
+ */
+static int use_cache;
/**
* Global configuration.
@@ -1925,7 +1929,32 @@
co);
}
+static void
+start_dht_request (struct GNS_ResolverHandle *rh, struct GNUNET_HashCode query)
+{
+ struct GNS_ResolverHandle *rx;
+ GNUNET_assert (NULL == rh->get_handle);
+ rh->get_handle = GNUNET_DHT_get_start (dht_handle,
+ GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
+ &query,
+ DHT_GNS_REPLICATION_LEVEL,
+ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
+ NULL, 0,
+ &handle_dht_response, rh);
+ rh->dht_heap_node = GNUNET_CONTAINER_heap_insert (dht_lookup_heap,
+ rh,
+ GNUNET_TIME_absolute_get
().abs_value_us);
+ if (GNUNET_CONTAINER_heap_get_size (dht_lookup_heap) >
max_allowed_background_queries)
+ {
+ /* fail longest-standing DHT request */
+ rx = GNUNET_CONTAINER_heap_peek (dht_lookup_heap);
+ GNUNET_assert (NULL != rx);
+ rx->proc (rx->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rx);
+ }
+}
+
/**
* Process a record that was stored in the namecache.
*
@@ -1937,15 +1966,11 @@
const struct GNUNET_GNSRECORD_Block *block)
{
struct GNS_ResolverHandle *rh = cls;
- struct GNS_ResolverHandle *rx;
struct AuthorityChain *ac = rh->ac_tail;
const char *label = ac->label;
const struct GNUNET_CRYPTO_EcdsaPublicKey *auth =
&ac->authority_info.gns_authority;
struct GNUNET_HashCode query;
- GNUNET_GNSRECORD_query_from_public_key (auth,
- label,
- &query);
GNUNET_assert (NULL != rh->namecache_qe);
rh->namecache_qe = NULL;
if ( (GNUNET_NO == rh->only_cached) &&
@@ -1954,30 +1979,14 @@
{
/* namecache knows nothing; try DHT lookup */
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Starting DHT lookup for `%s' in zone `%s' under key `%s'\n",
- ac->label,
- GNUNET_GNSRECORD_z2s (&ac->authority_info.gns_authority),
- GNUNET_h2s (&query));
- GNUNET_assert (NULL == rh->get_handle);
- rh->get_handle = GNUNET_DHT_get_start (dht_handle,
- GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
- &query,
- DHT_GNS_REPLICATION_LEVEL,
- GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
- NULL, 0,
- &handle_dht_response, rh);
- rh->dht_heap_node = GNUNET_CONTAINER_heap_insert (dht_lookup_heap,
- rh,
- GNUNET_TIME_absolute_get
().abs_value_us);
- if (GNUNET_CONTAINER_heap_get_size (dht_lookup_heap) >
max_allowed_background_queries)
- {
- /* fail longest-standing DHT request */
- rx = GNUNET_CONTAINER_heap_peek (dht_lookup_heap);
- GNUNET_assert (NULL != rx);
- rx->proc (rx->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rx);
- }
- return;
+ "Starting DHT lookup for `%s' in zone `%s' under key `%s'\n",
+ ac->label,
+ GNUNET_GNSRECORD_z2s (&ac->authority_info.gns_authority),
+ GNUNET_h2s (&query));
+ GNUNET_GNSRECORD_query_from_public_key (auth,
+ label,
+ &query);
+ start_dht_request(rh, query);
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
@@ -2029,11 +2038,16 @@
GNUNET_GNSRECORD_query_from_public_key (&ac->authority_info.gns_authority,
ac->label,
&query);
- rh->namecache_qe = GNUNET_NAMECACHE_lookup_block (namecache_handle,
+ if (GNUNET_YES == use_cache)
+ {
+ rh->namecache_qe = GNUNET_NAMECACHE_lookup_block (namecache_handle,
&query,
&handle_namecache_block_response,
rh);
- GNUNET_assert (NULL != rh->namecache_qe);
+ GNUNET_assert (NULL != rh->namecache_qe);
+ }
+ else
+ start_dht_request (rh, query);
}
@@ -2402,6 +2416,13 @@
dht_lookup_heap =
GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
max_allowed_background_queries = max_bg_queries;
+ if (GNUNET_SYSERR == (use_cache = GNUNET_CONFIGURATION_get_value_yesno (c,
+ "gns",
+ "USE_CACHE")))
+ use_cache = GNUNET_YES;
+ if (GNUNET_NO == use_cache)
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Namecache disabled\n");
+
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (c,
"gns",
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