[GNUnet-SVN] r10231 - gnunet/src/core

[gnunet]

Author: grothoff
Date: 2010-02-05 17:48:26 +0100 (Fri, 05 Feb 2010)
New Revision: 10231

Modified:
   gnunet/src/core/gnunet-service-core.c
Log:
fixes

Modified: gnunet/src/core/gnunet-service-core.c
===================================================================
--- gnunet/src/core/gnunet-service-core.c       2010-02-05 15:48:14 UTC (rev 
10230)
+++ gnunet/src/core/gnunet-service-core.c       2010-02-05 16:48:26 UTC (rev 
10231)
@@ -41,6 +41,8 @@
 #include "core.h"
 
 
+#define DEBUG_HANDSHAKE 1
+
 /**
  * Receive and send buffer windows grow over time.  For
  * how long can 'unused' bandwidth accumulate before we
@@ -319,8 +321,15 @@
    * Was this message selected for transmission in the
    * current round? GNUNET_YES or GNUNET_NO.
    */
-  int16_t do_transmit;
+  int8_t do_transmit;
 
+  /**
+   * Did we give this message some slack (delayed sending) previously
+   * (and hence should not give it any more slack)? GNUNET_YES or
+   * GNUNET_NO.
+   */
+  int8_t got_slack;
+
 };
 
 
@@ -1011,6 +1020,10 @@
       ret = m->size;
       n->available_send_window -= m->size;
       process_encrypted_neighbour_queue (n);
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Copied message of type %u and size %u into transport buffer 
for `%4s'\n",
+                  ntohs (((struct GNUNET_MessageHeader *) &m[1])->type),
+                  ret, GNUNET_i2s (&n->peer));
 #if DEBUG_CORE
       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                   "Copied message of type %u and size %u into transport buffer 
for `%4s'\n",
@@ -1268,13 +1281,20 @@
                      and relative deadlines caused by other messages
                      with their respective load */
                   slack = GNUNET_MIN (slack, avail / n->bpm_out);
-                  if (pos->deadline.value < now.value)
-                    slack = 0;
+                  if ( (pos->deadline.value < now.value) ||
+                      (GNUNET_YES == pos->got_slack) )                
+                   {
+                     slack = 0;
+                   }
                   else
-                    slack =
-                      GNUNET_MIN (slack, pos->deadline.value - now.value);
+                   {
+                     slack =
+                       GNUNET_MIN (slack, pos->deadline.value - now.value);
+                     pos->got_slack = GNUNET_YES;
+                   }
                 }
             }
+
           off += pos->size;
           t.value = GNUNET_MAX (pos->deadline.value, t.value);
           if (pos->priority <= min_prio)
@@ -1297,16 +1317,21 @@
      urgent deadlines */
   if ( (slack > 1000) && (size > 4 * off) )
     {
-      /* less than 25% of message would be filled with
-         deadlines still being met if we delay by one
-         second or more; so just wait for more data */
-      retry_time->value = slack / 2;
+      /* less than 25% of message would be filled with deadlines still
+         being met if we delay by one second or more; so just wait for
+         more data; but do not wait longer than 1s (since we don't want
+        to delay messages for a really long time either). */
+      retry_time->value = 1000;
       /* reset do_transmit values for next time */
       while (pos != last)
         {
-          pos->do_transmit = GNUNET_NO;
+          pos->do_transmit = GNUNET_NO;          
           pos = pos->next;
         }
+#if DEBUG_CORE
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Deferring transmission for 1s due to underfull message 
buffer size\n");
+#endif
       return 0;
     }
   /* select marked messages (up to size) for transmission */
@@ -1410,6 +1435,11 @@
          send_to_all_clients (&ntm->header,
                               GNUNET_YES,
                               GNUNET_CORE_OPTION_SEND_FULL_OUTBOUND);   
+#if DEBUG_HANDSHAKE
+         fprintf (stderr,
+                  "Encrypting message of type %u\n",
+                  ntohs(((struct GNUNET_MessageHeader*)&pos[1])->type));
+#endif
          /* copy for encrypted transmission */
           memcpy (&buf[ret], &pos[1], pos->size);
           ret += pos->size;
@@ -2338,7 +2368,8 @@
                   sizeof (struct GNUNET_PeerIdentity)))
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                 _("Received `%s' message that was not for me.  Ignoring.\n"));
+                 _("Received `%s' message that was not for me.  Ignoring.\n"),
+                 "SET_KEY");
       return;
     }
   if ((ntohl (m->purpose.size) !=
@@ -2576,6 +2607,12 @@
   int deliver_full;
 
   type = ntohs (m->type);
+#if DEBUG_HANDSHAKE
+  fprintf (stderr,
+          "Received encapsulated message of type %u from `%4s'\n",
+          type,
+          GNUNET_i2s (&sender->peer));
+#endif
   cpos = clients;
   while (cpos != NULL)
     {
@@ -2814,6 +2851,12 @@
   up = (n->status == PEER_STATE_KEY_CONFIRMED);
   type = ntohs (message->type);
   size = ntohs (message->size);
+#if DEBUG_HANDSHAKE
+  fprintf (stderr,
+          "Received message of type %u from `%4s'\n",
+          type,
+          GNUNET_i2s (peer));
+#endif
   switch (type)
     {
     case GNUNET_MESSAGE_TYPE_CORE_SET_KEY: