X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Futil%2Fpeer.c;h=b637dc229c8dadc6dfaac0c4ef5b8486e0432e66;hb=03512957fb04969d08fb7eac0952a747aa9596ae;hp=96ac271c0097cb7f3e80d04a912b4276be8a1fd4;hpb=a36de9cd81b02e4454ffcfa10c709419700c590d;p=oweals%2Fgnunet.git

diff --git a/src/util/peer.c b/src/util/peer.c
index 96ac271c0..b637dc229 100644
--- a/src/util/peer.c
+++ b/src/util/peer.c
@@ -1,10 +1,10 @@
 /*
       This file is part of GNUnet
-     (C) 2006, 2008, 2009 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2006, 2008, 2009 GNUnet e.V.
 
       GNUnet is free software; you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published
-      by the Free Software Foundation; either version 2, or (at your
+      by the Free Software Foundation; either version 3, or (at your
       option) any later version.
 
       GNUnet is distributed in the hope that it will be useful, but
@@ -23,10 +23,11 @@
  * @brief peer-ID table that assigns integer IDs to peer-IDs to save memory
  * @author Christian Grothoff
  */
-
 #include "platform.h"
 #include "gnunet_peer_lib.h"
 
+#define LOG(kind,...) GNUNET_log_from (kind, "util-peer", __VA_ARGS__)
+
 
 struct PeerEntry
 {
@@ -51,14 +52,14 @@ struct PeerEntry
 /**
  * Table with our interned peer IDs.
  */
-static struct PeerEntry *table;
+static struct PeerEntry **table;
 
 /**
- * Hashmap of PeerIdentities to "struct PeerEntry"
+ * Peermap of PeerIdentities to "struct PeerEntry"
  * (for fast lookup).  NULL until the library
  * is actually being used.
  */
-static struct GNUNET_CONTAINER_MultiHashMap *map;
+static struct GNUNET_CONTAINER_MultiPeerMap *map;
 
 /**
  * Size of the "table".
@@ -82,25 +83,19 @@ GNUNET_PEER_Id
 GNUNET_PEER_search (const struct GNUNET_PeerIdentity *pid)
 {
   struct PeerEntry *e;
-  long off;
 
-  if (pid == NULL)
+  if (NULL == pid)
     return 0;
   if (NULL == map)
     return 0;
-  off = (long) GNUNET_CONTAINER_multihashmap_get (map, &pid->hashPubKey);
-  e = (off == 0) ? NULL : &table[off];
-  if (e != NULL)
-    {
-      GNUNET_assert (e->rc > 0);
-      return e->pid;
-    }
-  else
-    {
-      return 0;
-    }
+  e = GNUNET_CONTAINER_multipeermap_get (map, pid);
+  if (NULL == e)
+    return 0;
+  GNUNET_assert (e->rc > 0);
+  return e->pid;
 }
 
+
 /**
  * Intern an peer identity.  If the identity is already known, its
  * reference counter will be increased by one.
@@ -114,80 +109,82 @@ GNUNET_PEER_intern (const struct GNUNET_PeerIdentity *pid)
   GNUNET_PEER_Id ret;
   struct PeerEntry *e;
   unsigned int i;
-  long off;
 
-  if (pid == NULL)
+  if (NULL == pid)
     return 0;
   if (NULL == map)
-    map = GNUNET_CONTAINER_multihashmap_create (32);
-  off = (long) GNUNET_CONTAINER_multihashmap_get (map, &pid->hashPubKey);
-  e = (off == 0) ? NULL : &table[off];
-  if (e != NULL)
-    {
-      GNUNET_assert (e->rc > 0);
-      e->rc++;
-      return e->pid;
-    }
+    map = GNUNET_CONTAINER_multipeermap_create (32, GNUNET_YES);
+  e = GNUNET_CONTAINER_multipeermap_get (map, pid);
+  if (NULL != e)
+  {
+    GNUNET_assert (e->rc > 0);
+    e->rc++;
+    return e->pid;
+  }
   ret = free_list_start;
   if (ret == size)
+  {
+    GNUNET_array_grow (table, size, size + 16);
+    for (i = ret; i < size; i++)
     {
-      GNUNET_array_grow (table, size, size + 16);
-      for (i = ret; i < size; i++)
-        table[i].pid = i + 1;
-    }
-  if (ret == 0)
-    {
-      table[0].pid = 0;
-      table[0].rc = 1;
-      ret = 1;
+      table[i] = GNUNET_new (struct PeerEntry);
+      table[i]->pid = i + 1;
     }
+  }
+  if (0 == ret)
+  {
+    memset (&table[0]->id, 0, sizeof (struct GNUNET_PeerIdentity));
+    table[0]->pid = 0;
+    table[0]->rc = 1;
+    ret = 1;
+  }
   GNUNET_assert (ret < size);
-  GNUNET_assert (table[ret].rc == 0);
-  free_list_start = table[ret].pid;
-  table[ret].id = *pid;
-  table[ret].rc = 1;
-  table[ret].pid = ret;
+  GNUNET_assert (0 == table[ret]->rc);
+  free_list_start = table[ret]->pid;
+  table[ret]->id = *pid;
+  table[ret]->rc = 1;
+  table[ret]->pid = ret;
   GNUNET_break (GNUNET_OK ==
-		GNUNET_CONTAINER_multihashmap_put (map,
-						   &pid->hashPubKey,
-						   (void *) (long) ret,
-						   GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                GNUNET_CONTAINER_multipeermap_put (map,
+						   &table[ret]->id,
+                                                   table[ret],
+                                                   GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
   return ret;
 }
 
 
 /**
  * Decrement multiple RCs of peer identities by one.
- * 
+ *
  * @param ids array of PIDs to decrement the RCs of
  * @param count size of the ids array
  */
 void
-GNUNET_PEER_decrement_rcs (const GNUNET_PEER_Id * ids, unsigned int count)
+GNUNET_PEER_decrement_rcs (const GNUNET_PEER_Id *ids, unsigned int count)
 {
   int i;
   GNUNET_PEER_Id id;
 
-  if (count == 0)
+  if (0 == count)
     return;
   for (i = count - 1; i >= 0; i--)
+  {
+    id = ids[i];
+    if (0 == id)
+      continue;
+    GNUNET_assert (id < size);
+    GNUNET_assert (table[id]->rc > 0);
+    table[id]->rc--;
+    if (0 == table[id]->rc)
     {
-      id = ids[i];
-      if (id == 0)
-	continue;
-      GNUNET_assert (id < size);
-      GNUNET_assert (table[id].rc > 0);
-      table[id].rc--;
-      if (table[id].rc == 0)
-        {
-          GNUNET_break (GNUNET_OK ==
-			GNUNET_CONTAINER_multihashmap_remove (map,
-							      &table[id].id.hashPubKey,
-							      (void*) (long) id));
-          table[id].pid = free_list_start;
-          free_list_start = id;
-        }
+      GNUNET_break (GNUNET_OK ==
+                    GNUNET_CONTAINER_multipeermap_remove (map,
+                                                          &table[id]->id,
+                                                          table[id]));
+      table[id]->pid = free_list_start;
+      free_list_start = id;
     }
+  }
 }
 
 
@@ -200,21 +197,21 @@ GNUNET_PEER_decrement_rcs (const GNUNET_PEER_Id * ids, unsigned int count)
 void
 GNUNET_PEER_change_rc (GNUNET_PEER_Id id, int delta)
 {
-  if (id == 0)
+  if (0 == id)
     return;
   GNUNET_assert (id < size);
-  GNUNET_assert (table[id].rc > 0);
-  GNUNET_assert ((delta >= 0) || (table[id].rc >= -delta));
-  table[id].rc += delta;
-  if (table[id].rc == 0)
-    {
-      GNUNET_break (GNUNET_OK ==
-		    GNUNET_CONTAINER_multihashmap_remove (map,
-							  &table[id].id.hashPubKey,
-							  (void*) (long) id));
-      table[id].pid = free_list_start;
-      free_list_start = id;
-    }
+  GNUNET_assert (table[id]->rc > 0);
+  GNUNET_assert ((delta >= 0) || (table[id]->rc >= -delta));
+  table[id]->rc += delta;
+  if (0 == table[id]->rc)
+  {
+    GNUNET_break (GNUNET_OK ==
+                  GNUNET_CONTAINER_multipeermap_remove (map,
+                                                        &table[id]->id,
+                                                        table[id]));
+    table[id]->pid = free_list_start;
+    free_list_start = id;
+  }
 }
 
 
@@ -227,16 +224,31 @@ GNUNET_PEER_change_rc (GNUNET_PEER_Id id, int delta)
 void
 GNUNET_PEER_resolve (GNUNET_PEER_Id id, struct GNUNET_PeerIdentity *pid)
 {
-  if (id == 0)
-    {
-      memset (pid, 0, sizeof (struct GNUNET_PeerIdentity));
-      GNUNET_break (0);
-      return;
-    }
+  if (0 == id)
+  {
+    memset (pid, 0, sizeof (struct GNUNET_PeerIdentity));
+    return;
+  }
+  GNUNET_assert (id < size);
+  GNUNET_assert (table[id]->rc > 0);
+  *pid = table[id]->id;
+}
+
+
+/**
+ * Convert an interned PID to a normal peer identity.
+ *
+ * @param id interned PID to convert
+ * @return pointer to peer identity, valid as long 'id' is valid
+ */
+const struct GNUNET_PeerIdentity *
+GNUNET_PEER_resolve2 (GNUNET_PEER_Id id)
+{
   GNUNET_assert (id < size);
-  GNUNET_assert (table[id].rc > 0);
-  *pid = table[id].id;
+  GNUNET_assert (table[id]->rc > 0);
+  return &table[id]->id;
 }
 
 
+
 /* end of peer.c */