Merge branch 'master' of ssh://gnunet.org/gnunet
[oweals/gnunet.git] / src / fs / plugin_block_fs.c
index 0387340821fb45c68c650d911bf9ffefc2c20379..902519f15522acd241d27ccbedf0210795a8c717 100644 (file)
  */
 #define BLOOMFILTER_K 16
 
-/**
- * How big is the BF we use for FS blocks?
- */
-#define FS_BF_SIZE 8
-
 
 /**
  * Create a new block group.
  * @param nonce random value used to seed the group creation
  * @param raw_data optional serialized prior state of the group, NULL if unavailable/fresh
  * @param raw_data_size number of bytes in @a raw_data, 0 if unavailable/fresh
+ * @param va variable arguments specific to @a type
  * @return block group handle, NULL if block groups are not supported
  *         by this @a type of block (this is not an error)
  */
 static struct GNUNET_BLOCK_Group *
 block_plugin_fs_create_group (void *cls,
-                               enum GNUNET_BLOCK_Type type,
-                               uint32_t nonce,
-                               const void *raw_data,
-                               size_t raw_data_size)
+                              enum GNUNET_BLOCK_Type type,
+                              uint32_t nonce,
+                              const void *raw_data,
+                              size_t raw_data_size,
+                              va_list va)
 {
+  unsigned int size;
+  const char *guard;
+
   switch (type)
   {
   case GNUNET_BLOCK_TYPE_FS_DBLOCK:
+    GNUNET_break (NULL == va_arg (va, const char *));
     return NULL;
   case GNUNET_BLOCK_TYPE_FS_IBLOCK:
+    GNUNET_break (NULL == va_arg (va, const char *));
     return NULL;
   case GNUNET_BLOCK_TYPE_FS_UBLOCK:
+    guard = va_arg (va, const char *);
+    if (0 != strcmp (guard,
+                     "seen-set-size"))
+    {
+      /* va-args invalid! bad bug, complain! */
+      GNUNET_break (0);
+      size = 8;
+    }
+    else
+    {
+      size = GNUNET_BLOCK_GROUP_compute_bloomfilter_size (va_arg (va, unsigned int),
+                                                          BLOOMFILTER_K);
+    }
+    if (0 == size)
+      size = raw_data_size; /* not for us to determine, use what we got! */
+    GNUNET_break (NULL == va_arg (va, const char *));
     return GNUNET_BLOCK_GROUP_bf_create (cls,
-                                         FS_BF_SIZE,
+                                         size,
                                          BLOOMFILTER_K,
                                          type,
                                          nonce,
                                          raw_data,
                                          raw_data_size);
   default:
+    GNUNET_break (NULL == va_arg (va, const char *));
     GNUNET_break (0);
     return NULL;
   }
@@ -90,11 +109,11 @@ block_plugin_fs_create_group (void *cls,
  * be done with the #GNUNET_BLOCK_get_key() function.
  *
  * @param cls closure
+ * @param ctx block context
  * @param type block type
+ * @param bg group to use for evaluation
  * @param eo control flags
  * @param query original query (hash)
- * @param bf pointer to bloom filter associated with query; possibly updated (!)
- * @param bf_mutator mutation value for @a bf
  * @param xquery extrended query data (can be NULL, depending on type)
  * @param xquery_size number of bytes in @a xquery
  * @param reply_block response to validate
@@ -103,11 +122,11 @@ block_plugin_fs_create_group (void *cls,
  */
 static enum GNUNET_BLOCK_EvaluationResult
 block_plugin_fs_evaluate (void *cls,
+                          struct GNUNET_BLOCK_Context *ctx,
                           enum GNUNET_BLOCK_Type type,
+                          struct GNUNET_BLOCK_Group *bg,
                           enum GNUNET_BLOCK_EvaluationOptions eo,
                           const struct GNUNET_HashCode *query,
-                          struct GNUNET_CONTAINER_BloomFilter **bf,
-                          int32_t bf_mutator,
                           const void *xquery,
                           size_t xquery_size,
                           const void *reply_block,
@@ -116,7 +135,6 @@ block_plugin_fs_evaluate (void *cls,
   const struct UBlock *ub;
   struct GNUNET_HashCode hc;
   struct GNUNET_HashCode chash;
-  struct GNUNET_HashCode mhash;
 
   switch (type)
   {
@@ -170,26 +188,13 @@ block_plugin_fs_evaluate (void *cls,
       GNUNET_break_op (0);
       return GNUNET_BLOCK_EVALUATION_RESULT_INVALID;
     }
-    if (NULL != bf)
-    {
-      GNUNET_CRYPTO_hash (reply_block,
-                          reply_block_size,
-                          &chash);
-      GNUNET_BLOCK_mingle_hash (&chash,
-                                bf_mutator,
-                                &mhash);
-      if (NULL != *bf)
-      {
-        if (GNUNET_YES ==
-            GNUNET_CONTAINER_bloomfilter_test (*bf, &mhash))
-          return GNUNET_BLOCK_EVALUATION_OK_DUPLICATE;
-      }
-      else
-      {
-        *bf = GNUNET_CONTAINER_bloomfilter_init (NULL, 8, BLOOMFILTER_K);
-      }
-      GNUNET_CONTAINER_bloomfilter_add (*bf, &mhash);
-    }
+    GNUNET_CRYPTO_hash (reply_block,
+                        reply_block_size,
+                        &chash);
+    if (GNUNET_YES ==
+        GNUNET_BLOCK_GROUP_bf_test_and_set (bg,
+                                            &chash))
+      return GNUNET_BLOCK_EVALUATION_OK_DUPLICATE;
     return GNUNET_BLOCK_EVALUATION_OK_MORE;
   default:
     return GNUNET_BLOCK_EVALUATION_TYPE_NOT_SUPPORTED;
@@ -271,7 +276,7 @@ libgnunet_plugin_block_fs_init (void *cls)
 void *
 libgnunet_plugin_block_fs_done (void *cls)
 {
-  struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
+  struct GNUNET_BLOCK_PluginFunctions *api = cls;
 
   GNUNET_free (api);
   return NULL;