/*
This file is part of GNUnet.
- (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2009-2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
*/
GNUNET_TRANSPORT_HelloUpdateCallback rec;
+ /**
+ * Task for calling the HelloUpdateCallback when we already have a HELLO
+ */
+ GNUNET_SCHEDULER_TaskIdentifier notify_task;
+
/**
* Closure for rec.
*/
const struct GNUNET_MessageHeader *imm;
const struct SendOkMessage *okm;
const struct QuotaSetMessage *qm;
- const struct GNUNET_ATS_Information *ats;
struct GNUNET_TRANSPORT_GetHelloHandle *hwl;
struct GNUNET_TRANSPORT_GetHelloHandle *next_hwl;
struct Neighbour *n;
struct GNUNET_PeerIdentity me;
uint16_t size;
- uint32_t ats_count;
uint32_t bytes_msg;
uint32_t bytes_physical;
break;
}
cim = (const struct ConnectInfoMessage *) msg;
- ats_count = ntohl (cim->ats_count);
if (size !=
- sizeof (struct ConnectInfoMessage) +
- ats_count * sizeof (struct GNUNET_ATS_Information))
+ sizeof (struct ConnectInfoMessage))
{
GNUNET_break (0);
break;
}
- ats = (const struct GNUNET_ATS_Information *) &cim[1];
LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message for `%4s'.\n",
"CONNECT", GNUNET_i2s (&cim->id));
n = neighbour_find (h, &cim->id);
"CONNECT", GNUNET_i2s (&cim->id), ntohl (cim->quota_out.value__));
GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker, cim->quota_out);
if (h->nc_cb != NULL)
- h->nc_cb (h->cls, &n->id, ats, ats_count);
+ h->nc_cb (h->cls, &n->id);
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT:
if (size != sizeof (struct DisconnectInfoMessage))
break;
}
im = (const struct InboundMessage *) msg;
- ats_count = ntohl (im->ats_count);
- ats = (const struct GNUNET_ATS_Information *) &im[1];
- imm = (const struct GNUNET_MessageHeader *) &ats[ats_count];
- if (ntohs (imm->size) + sizeof (struct InboundMessage) +
- ats_count * sizeof (struct GNUNET_ATS_Information) != size)
+ imm = (const struct GNUNET_MessageHeader *) &im[1];
+ if (ntohs (imm->size) + sizeof (struct InboundMessage) != size)
{
GNUNET_break (0);
break;
break;
}
if (h->rec != NULL)
- h->rec (h->cls, &im->peer, imm, ats, ats_count);
+ h->rec (h->cls, &im->peer, imm);
break;
case GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA:
LOG (GNUNET_ERROR_TYPE_DEBUG, "Receiving `%s' message.\n", "SET_QUOTA");
if (th->notify_size + sizeof (struct OutboundMessage) > size)
break; /* does not fit */
if (GNUNET_BANDWIDTH_tracker_get_delay
- (&n->out_tracker, th->notify_size).rel_value > 0)
+ (&n->out_tracker, th->notify_size).rel_value_us > 0)
break; /* too early */
GNUNET_assert (n == GNUNET_CONTAINER_heap_remove_root (h->ready_heap));
n->hn = NULL;
GNUNET_assert (NULL != h->client);
/* destroy all requests that have timed out */
while ((NULL != (n = GNUNET_CONTAINER_heap_peek (h->ready_heap))) &&
- (GNUNET_TIME_absolute_get_remaining (n->th->timeout).rel_value == 0))
+ (0 == GNUNET_TIME_absolute_get_remaining (n->th->timeout).rel_value_us))
{
/* notify client that the request could not be satisfied within
* the given time constraints */
else
return; /* no work to be done */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling next transmission to service in %llu ms\n",
- (unsigned long long) delay.rel_value);
+ "Scheduling next transmission to service in %s\n",
+ GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
h->quota_task =
GNUNET_SCHEDULER_add_delayed (delay, &schedule_transmission_task, h);
}
GNUNET_free (th);
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling task to reconnect to transport service in %llu ms.\n",
- h->reconnect_delay.rel_value);
+ "Scheduling task to reconnect to transport service in %s.\n",
+ GNUNET_STRINGS_relative_time_to_string(h->reconnect_delay, GNUNET_YES));
h->reconnect_task =
GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay);
if (NULL != tch->cb)
tch->cb (tch->cb_cls, GNUNET_SYSERR);
GNUNET_CONTAINER_DLL_remove (tch->th->tc_head, tch->th->tc_tail, tch);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Discarding `%s' request to `%4s' due to error in transport service connection.\n", "REQUEST_CONNECT",
+ GNUNET_i2s (&tch->pid));
GNUNET_free (tch);
return 0;
}
}
+/**
+ * Send traffic metric message to the service.
+ *
+ * @param cls the message to send
+ * @param size number of bytes available in buf
+ * @param buf where to copy the message
+ * @return number of bytes copied to buf
+ */
+static size_t
+send_metric (void *cls, size_t size, void *buf)
+{
+ struct TrafficMetricMessage *msg = cls;
+ uint16_t ssize;
+ if (buf == NULL)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout while trying to transmit `%s' request.\n", "TRAFFIC_METRIC");
+ GNUNET_free (msg);
+ return 0;
+ }
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "TRAFFIC_METRIC");
+ ssize = ntohs (msg->header.size);
+ GNUNET_assert (size >= ssize);
+ memcpy (buf, msg, ssize);
+ GNUNET_free (msg);
+ return ssize;
+}
+
+
+/**
+ * Set transport metrics for a peer and a direction
+ *
+ * @param handle transport handle
+ * @param peer the peer to set the metric for
+ * @param inbound set inbound direction (GNUNET_YES or GNUNET_NO)
+ * @param outbound set outbound direction (GNUNET_YES or GNUNET_NO)
+ * @param ats the metric as ATS information
+ * @param ats_count the number of metrics
+ *
+ * Supported ATS values:
+ * GNUNET_ATS_QUALITY_NET_DELAY (value in ms)
+ * GNUNET_ATS_QUALITY_NET_DISTANCE (value in count(hops))
+ *
+ * Example
+ * To enforce a delay of 10 ms for peer p1 in sending direction use:
+ *
+ * struct GNUNET_ATS_Information ats;
+ * ats.type = ntohl (GNUNET_ATS_QUALITY_NET_DELAY);
+ * ats.value = ntohl (10);
+ * GNUNET_TRANSPORT_set_traffic_metric (th, p1, TM_SEND, &ats, 1);
+ *
+ * Note:
+ * Delay restrictions in receiving direction will be enforced with
+ * 1 message delay.
+ */
+void
+GNUNET_TRANSPORT_set_traffic_metric (struct GNUNET_TRANSPORT_Handle *handle,
+ const struct GNUNET_PeerIdentity *peer,
+ int inbound,
+ int outbound,
+ const struct GNUNET_ATS_Information *ats,
+ size_t ats_count)
+{
+ struct TrafficMetricMessage *msg;
+
+ GNUNET_assert (NULL != handle);
+ GNUNET_assert (NULL != peer);
+ GNUNET_assert ((outbound == GNUNET_YES) || (outbound == GNUNET_NO));
+ GNUNET_assert ((inbound == GNUNET_YES) || (inbound == GNUNET_NO));
+
+ if ((GNUNET_NO == inbound) && (GNUNET_NO == outbound))
+ return;
+ if (0 == ats_count)
+ return;
+
+ size_t len = sizeof (struct TrafficMetricMessage) +
+ ats_count * sizeof (struct GNUNET_ATS_Information);
+
+ msg = GNUNET_malloc (len);
+ msg->header.size = htons (len);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_TRAFFIC_METRIC);
+ msg->direction = htons (0 + outbound + 2 * inbound);
+ msg->ats_count = htons (ats_count);
+ msg->peer = (*peer);
+ memcpy (&msg[1], ats, ats_count * sizeof (struct GNUNET_ATS_Information));
+ schedule_control_transmit (handle, len, &send_metric, msg);
+}
+
+
+
/**
* Offer the transport service the HELLO of another peer. Note that
* the transport service may just ignore this message if the HELLO is
return GNUNET_NO;
}
+
+/**
+ * Task to call the HelloUpdateCallback of the GetHelloHandle
+ *
+ * @param cls the GetHelloHandle
+ * @param tc the scheduler task context
+ */
+static void
+call_hello_update_cb_async (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_TRANSPORT_GetHelloHandle *ghh = cls;
+
+ GNUNET_assert (NULL != ghh->handle->my_hello);
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != ghh->notify_task);
+ ghh->notify_task = GNUNET_SCHEDULER_NO_TASK;
+ ghh->rec (ghh->rec_cls,
+ (const struct GNUNET_MessageHeader *) ghh->handle->my_hello);
+}
+
+
/**
- * Obtain the HELLO message for this peer.
+ * Obtain the HELLO message for this peer. The callback given in this function
+ * is never called synchronously.
*
* @param handle connection to transport service
* @param rec function to call with the HELLO, sender will be our peer
hwl->handle = handle;
GNUNET_CONTAINER_DLL_insert (handle->hwl_head, handle->hwl_tail, hwl);
if (handle->my_hello != NULL)
- rec (rec_cls, (const struct GNUNET_MessageHeader *) handle->my_hello);
+ hwl->notify_task = GNUNET_SCHEDULER_add_now (&call_hello_update_cb_async,
+ hwl);
return hwl;
}
{
struct GNUNET_TRANSPORT_Handle *handle = ghh->handle;
+ if (GNUNET_SCHEDULER_NO_TASK != ghh->notify_task)
+ GNUNET_SCHEDULER_cancel (ghh->notify_task);
GNUNET_CONTAINER_DLL_remove (handle->hwl_head, handle->hwl_tail, ghh);
GNUNET_free (ghh);
}
/* calculate when our transmission should be ready */
delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker, size + n->traffic_overhead);
n->traffic_overhead = 0;
- if (delay.rel_value > timeout.rel_value)
- delay.rel_value = 0; /* notify immediately (with failure) */
+ if (delay.rel_value_us > timeout.rel_value_us)
+ delay.rel_value_us = 0; /* notify immediately (with failure) */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Bandwidth tracker allows next transmission to peer %s in %llu ms\n",
- GNUNET_i2s (target), (unsigned long long) delay.rel_value);
- n->hn = GNUNET_CONTAINER_heap_insert (handle->ready_heap, n, delay.rel_value);
+ "Bandwidth tracker allows next transmission to peer %s in %s\n",
+ GNUNET_i2s (target),
+ GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ n->hn = GNUNET_CONTAINER_heap_insert (handle->ready_heap, n, delay.rel_value_us);
schedule_transmission (handle);
return th;
}