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[GNUnet-SVN] r24987 - gnunet/src/mesh
From: |
gnunet |
Subject: |
[GNUnet-SVN] r24987 - gnunet/src/mesh |
Date: |
Thu, 15 Nov 2012 16:24:16 +0100 |
Author: bartpolot
Date: 2012-11-15 16:24:16 +0100 (Thu, 15 Nov 2012)
New Revision: 24987
Modified:
gnunet/src/mesh/gnunet-service-mesh.c
Log:
- exponential backoff for ACK polling
Modified: gnunet/src/mesh/gnunet-service-mesh.c
===================================================================
--- gnunet/src/mesh/gnunet-service-mesh.c 2012-11-15 14:55:44 UTC (rev
24986)
+++ gnunet/src/mesh/gnunet-service-mesh.c 2012-11-15 15:24:16 UTC (rev
24987)
@@ -61,7 +61,9 @@
#define MESH_DEBUG_CONNECTION GNUNET_NO
#define MESH_DEBUG_TIMING __LINUX__ && GNUNET_NO
-#define MESH_POLL_TIME GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_SECONDS, 10)
+#define MESH_MAX_POLL_TIME GNUNET_TIME_relative_multiply (\
+ GNUNET_TIME_UNIT_MINUTES,\
+ 10)
#if MESH_DEBUG_CONNECTION
#define DEBUG_CONN(...) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
@@ -584,7 +586,12 @@
/**
* Task to poll peer in case of a stall.
*/
- GNUNET_SCHEDULER_TaskIdentifier fc_poll;
+ GNUNET_SCHEDULER_TaskIdentifier fc_poll;
+
+ /**
+ * Time to use for next polling call.
+ */
+ struct GNUNET_TIME_Relative fc_poll_time;
};
@@ -2994,7 +3001,7 @@
* Function called if the connection to the peer has been stalled for a while,
* possibly due to a missed ACK. Poll the peer about its ACK status.
*
- * @param cls Closure (info about regex search).
+ * @param cls Closure (cinfo).
* @param tc TaskContext.
*/
static void
@@ -3020,8 +3027,11 @@
GNUNET_PEER_resolve (cinfo->id, &id);
send_prebuilt_message (&msg.header, &id, cinfo->t);
- cinfo->fc_poll = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_SECONDS,
- &tunnel_poll, cinfo);
+ cinfo->fc_poll_time = GNUNET_TIME_relative_min (
+ MESH_MAX_POLL_TIME,
+ GNUNET_TIME_relative_multiply (cinfo->fc_poll_time, 2));
+ cinfo->fc_poll = GNUNET_SCHEDULER_add_delayed (cinfo->fc_poll_time,
+ &tunnel_poll, cinfo);
}
@@ -3692,6 +3702,9 @@
cinfo->bck_ack = delta;
cinfo->bck_pid = -1;
+ cinfo->fc_poll = GNUNET_SCHEDULER_NO_TASK;
+ cinfo->fc_poll_time = GNUNET_TIME_UNIT_SECONDS;
+
cinfo->send_buffer =
GNUNET_malloc (sizeof(struct MeshPeerQueue *) * t->fwd_queue_max);
@@ -5197,8 +5210,10 @@
if (NULL == cinfo)
cinfo = tunnel_get_neighbor_fc (t, &dst_id);
if (GNUNET_SCHEDULER_NO_TASK == cinfo->fc_poll)
- cinfo->fc_poll = GNUNET_SCHEDULER_add_delayed(MESH_POLL_TIME,
- &tunnel_poll, cinfo);
+ {
+ cinfo->fc_poll = GNUNET_SCHEDULER_add_delayed (cinfo->fc_poll_time,
+ &tunnel_poll, cinfo);
+ }
}
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "********* return %d\n", data_size);
@@ -6037,6 +6052,12 @@
cinfo->fwd_ack = ack;
tunnel_send_fwd_ack (t, GNUNET_MESSAGE_TYPE_MESH_ACK);
tunnel_unlock_fwd_queues (t);
+ if (GNUNET_SCHEDULER_NO_TASK != cinfo->fc_poll)
+ {
+ GNUNET_SCHEDULER_cancel (cinfo->fc_poll);
+ cinfo->fc_poll = GNUNET_SCHEDULER_NO_TASK;
+ cinfo->fc_poll_time = GNUNET_TIME_UNIT_SECONDS;
+ }
}
else
{
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