* @brief mesh api: client implementation of mesh service
* @author Bartlomiej Polot
*
- * TODO:
- * - callbacks to client missing on certain events
- * - processing messages from service is incomplete
- * - Check priorities to cancel traffic data
- *
* STRUCTURE:
* - CONSTANTS
* - DATA STRUCTURES
#include "mesh.h"
#include "mesh_protocol.h"
-#define DEBUG GNUNET_YES
+#define MESH_API_DEBUG GNUNET_YES
+
+#define LOG(kind,...) GNUNET_log_from (kind, "mesh-api",__VA_ARGS__)
/******************************************************************************/
/************************ DATA STRUCTURES ****************************/
uint32_t priority;
/**
- * Target of the message, 0 for broadcast. This field
+ * Target of the message, 0 for multicast. This field
* is only valid if 'notify' is non-NULL.
*/
GNUNET_PEER_Id target;
* Configuration given by the client, in case of reconnection
*/
const struct GNUNET_CONFIGURATION_Handle *cfg;
+
+ /**
+ * Time to the next reconnect in case one reconnect fails
+ */
+ struct GNUNET_TIME_Relative reconnect_time;
};
/**
* Callback to execute when peers connect to the tunnel
*/
- GNUNET_MESH_TunnelConnectHandler connect_handler;
+ GNUNET_MESH_PeerConnectHandler connect_handler;
/**
* Callback to execute when peers disconnect from the tunnel
*/
- GNUNET_MESH_TunnelDisconnectHandler disconnect_handler;
+ GNUNET_MESH_PeerDisconnectHandler disconnect_handler;
/**
* Closure for the connect/disconnect handlers
unsigned int i;
if (NULL == t)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ h = t->mesh;
+ th = h->th_head;
+ while (NULL != th)
{
if (th->tunnel == t)
{
aux = th->next;
- GNUNET_CONTAINER_DLL_remove(h->th_head, h->th_tail, th);
+ GNUNET_CONTAINER_DLL_remove (h->th_head, h->th_tail, th);
if (NULL == h->th_head && NULL != h->th)
{
- GNUNET_CLIENT_notify_transmit_ready_cancel(h->th);
+ GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
h->th = NULL;
}
if (NULL != th->notify)
- th->notify(th->notify_cls, 0, NULL);
+ th->notify (th->notify_cls, 0, NULL);
if (GNUNET_SCHEDULER_NO_TASK != th->timeout_task)
- GNUNET_SCHEDULER_cancel(th->timeout_task);
+ GNUNET_SCHEDULER_cancel (th->timeout_task);
GNUNET_free (th);
th = aux;
}
th = th->next;
}
}
- h = t->mesh;
- /* TODO remove data packets from queue */
GNUNET_CONTAINER_DLL_remove (h->tunnels_head, h->tunnels_tail, t);
for (i = 0; i < t->npeers; i++)
{
GNUNET_free (t->peers[i]);
}
if (t->npeers > 0)
- GNUNET_free (t->peers);
+ GNUNET_free (t->peers);
if (NULL != h->cleaner && 0 != t->owner)
h->cleaner (h->cls, t, t->ctx);
if (0 != t->owner)
return;
}
+
/**
* Get the peer descriptor for the peer with id from the given tunnel
* @param t Tunnel handle
/**
* Remove a peer from a tunnel
- * @param t Tunnel handle
* @param p Peer handle
*/
static void
* timeout if needed.
*
* @param h mesh handle with the queue head and tail
- * @param q handle to the packet to be transmitted
+ * @param th handle to the packet to be transmitted
*/
static void
add_to_queue (struct GNUNET_MESH_Handle *h,
}
+/**
+ * Auxiliary function to send an already constructed packet to the service.
+ * Takes care of creating a new queue element, copying the message and
+ * calling the tmt_rdy function if necessary.
+ * @param h mesh handle
+ * @param msg message to transmit
+ */
static void
send_packet (struct GNUNET_MESH_Handle *h,
const struct GNUNET_MessageHeader *msg);
+/**
+ * Reconnect callback: tries to reconnect again after a failer previous
+ * reconnecttion
+ * @param cls closure (mesh handle)
+ * @param tc task context
+ */
+static void
+reconnect_cbk (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Send a connect packet to the service with the applications and types
+ * requested by the user.
+ *
+ * @param h The mesh handle.
+ *
+ */
+static void
+send_connect (struct GNUNET_MESH_Handle *h)
+{
+ size_t size;
+
+ size = sizeof (struct GNUNET_MESH_ClientConnect);
+ size += h->n_applications * sizeof (GNUNET_MESH_ApplicationType);
+ size += h->n_handlers * sizeof (uint16_t);
+ {
+ char buf[size];
+ struct GNUNET_MESH_ClientConnect *msg;
+ GNUNET_MESH_ApplicationType *apps;
+ uint16_t napps;
+ uint16_t *types;
+ uint16_t ntypes;
+
+ /* build connection packet */
+ msg = (struct GNUNET_MESH_ClientConnect *) buf;
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT);
+ msg->header.size = htons (size);
+ apps = (GNUNET_MESH_ApplicationType *) &msg[1];
+ for (napps = 0; napps < h->n_applications; napps++)
+ {
+ apps[napps] = htonl (h->applications[napps]);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: app %u\n", h->applications[napps]);
+ }
+ types = (uint16_t *) & apps[napps];
+ for (ntypes = 0; ntypes < h->n_handlers; ntypes++)
+ types[ntypes] = htons (h->message_handlers[ntypes].type);
+ msg->applications = htons (napps);
+ msg->types = htons (ntypes);
+#if MESH_API_DEBUG
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: Sending %lu bytes long message %d types and %d apps\n",
+ ntohs (msg->header.size), ntypes, napps);
+#endif
+ send_packet (h, &msg->header);
+ }
+}
+
+
/**
* Reconnect to the service, retransmit all infomation to try to restore the
* original state.
struct GNUNET_MESH_Tunnel *t;
unsigned int i;
+#if MESH_API_DEBUG
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: *****************************\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: ******* RECONNECT *******\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: *****************************\n");
+#endif
h->in_receive = GNUNET_NO;
/* disconnect */
if (NULL != h->th)
h->client = GNUNET_CLIENT_connect ("mesh", h->cfg);
if (h->client == NULL)
{
- /* FIXME: panic? exponential backoff retry? */
+ GNUNET_SCHEDULER_add_delayed (h->reconnect_time, &reconnect_cbk, h);
+ h->reconnect_time =
+ GNUNET_TIME_relative_min (GNUNET_TIME_UNIT_HOURS,
+ GNUNET_TIME_relative_multiply
+ (h->reconnect_time, 2));
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: Next retry in %sms\n",
+ GNUNET_TIME_relative_to_string (h->reconnect_time));
GNUNET_break (0);
return GNUNET_NO;
}
+ else
+ {
+ h->reconnect_time = GNUNET_TIME_UNIT_MILLISECONDS;
+ }
+ send_connect (h);
/* Rebuild all tunnels */
for (t = h->tunnels_head; NULL != t; t = t->next)
{
return GNUNET_YES;
}
+/**
+ * Reconnect callback: tries to reconnect again after a failer previous
+ * reconnecttion
+ * @param cls closure (mesh handle)
+ * @param tc task context
+ */
+static void
+reconnect_cbk (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct GNUNET_MESH_Handle *h = cls;
+
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ return;
+ reconnect (h);
+}
+
/******************************************************************************/
/*********************** RECEIVE HANDLERS ****************************/
* @param msg A message with the details of the new incoming tunnel
*/
static void
-process_tunnel_create (struct GNUNET_MESH_Handle *h,
- const struct GNUNET_MESH_TunnelMessage *msg)
+process_tunnel_created (struct GNUNET_MESH_Handle *h,
+ const struct GNUNET_MESH_TunnelNotification *msg)
{
struct GNUNET_MESH_Tunnel *t;
- struct GNUNET_TRANSPORT_ATS_Information atsi;
+ struct GNUNET_ATS_Information atsi;
MESH_TunnelNumber tid;
tid = ntohl (msg->tunnel_id);
{
atsi.type = 0;
atsi.value = 0;
- t->ctx = h->new_tunnel(h->cls, t, &msg->peer, &atsi);
+ t->ctx = h->new_tunnel (h->cls, t, &msg->peer, &atsi);
}
- GNUNET_CONTAINER_DLL_insert (h->tunnels_head, h->tunnels_tail, t);
return;
}
if (NULL == t)
{
- GNUNET_break(0);
return;
}
if (0 == t->owner)
{
- GNUNET_break(0);
+ GNUNET_break (0);
}
- destroy_tunnel(t);
+ destroy_tunnel (t);
return;
}
{
struct GNUNET_MESH_Tunnel *t;
struct GNUNET_MESH_Peer *p;
- struct GNUNET_TRANSPORT_ATS_Information atsi;
+ struct GNUNET_ATS_Information atsi;
GNUNET_PEER_Id id;
uint16_t size;
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: processig peer event\n");
size = ntohs (msg->header.size);
if (size != sizeof (struct GNUNET_MESH_PeerControl))
{
t = retrieve_tunnel (h, ntohl (msg->tunnel_id));
if (NULL == t)
{
- GNUNET_break(0);
+ GNUNET_break (0);
return;
}
id = GNUNET_PEER_search (&msg->peer);
if ((p = retrieve_peer (t, id)) == NULL)
p = add_peer_to_tunnel (t, &msg->peer);
- if (GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_ADD == msg->header.type)
+ if (GNUNET_MESSAGE_TYPE_MESH_LOCAL_PEER_ADD == ntohs (msg->header.type))
{
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: adding peer\n");
if (NULL != t->connect_handler)
{
atsi.type = 0;
}
else
{
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: removing peer\n");
if (NULL != t->disconnect_handler && p->connected)
{
t->disconnect_handler (t->cls, &msg->peer);
remove_peer_from_tunnel (p);
GNUNET_free (p);
}
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: processing peer event END\n");
}
/**
* Process the incoming data packets
*
- * @param h The mesh handle
- * @param msh A message encapsulating the data
+ * @param h The mesh handle
+ * @param message A message encapsulating the data
*/
static void
process_incoming_data (struct GNUNET_MESH_Handle *h,
struct GNUNET_MESH_Multicast *mcast;
struct GNUNET_MESH_ToOrigin *to_orig;
struct GNUNET_MESH_Tunnel *t;
+ unsigned int i;
uint16_t type;
- int i;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: Got a data message!\n");
type = ntohs (message->type);
switch (type)
{
case GNUNET_MESSAGE_TYPE_MESH_UNICAST:
ucast = (struct GNUNET_MESH_Unicast *) message;
+
t = retrieve_tunnel (h, ntohl (ucast->tid));
payload = (struct GNUNET_MessageHeader *) &ucast[1];
peer = &ucast->oid;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: on tunnel %s [%x]\n",
+ GNUNET_i2s (peer),
+ ntohl (ucast->tid));
break;
case GNUNET_MESSAGE_TYPE_MESH_MULTICAST:
mcast = (struct GNUNET_MESH_Multicast *) message;
GNUNET_break (0);
return;
}
+ type = ntohs (payload->type);
for (i = 0; i < h->n_handlers; i++)
{
handler = &h->message_handlers[i];
if (handler->type == type)
{
- struct GNUNET_TRANSPORT_ATS_Information atsi;
+ struct GNUNET_ATS_Information atsi;
atsi.type = 0;
atsi.value = 0;
- if (GNUNET_OK ==
+ if (GNUNET_OK !=
handler->callback (h->cls, t, &t->ctx, peer, payload, &atsi))
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "MESH: callback completed successfully\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "MESH: callback caused disconnection\n");
+ GNUNET_MESH_disconnect (h);
+ return;
}
+#if MESH_API_DEBUG
else
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "MESH: callback caused disconnection\n");
- GNUNET_MESH_disconnect (h);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "MESH: callback completed successfully\n");
+
}
+#endif
}
}
}
{
struct GNUNET_MESH_Handle *h = cls;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: received a message from MESH\n");
if (msg == NULL)
{
reconnect (h);
return;
}
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: received a message type %hu from MESH\n",
+ ntohs (msg->type));
switch (ntohs (msg->type))
{
/* Notify of a new incoming tunnel */
case GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_CREATE:
- process_tunnel_create (h, (struct GNUNET_MESH_TunnelMessage *) msg);
+ process_tunnel_created (h, (struct GNUNET_MESH_TunnelNotification *) msg);
break;
/* Notify of a tunnel disconnection */
case GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_DESTROY:
break;
/* We shouldn't get any other packages, log and ignore */
default:
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "MESH: unsolicited message form service (type %d)\n",
- ntohs (msg->type));
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "MESH: unsolicited message form service (type %d)\n",
+ ntohs (msg->type));
}
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: message processed\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: message processed\n");
GNUNET_CLIENT_receive (h->client, &msg_received, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}
size_t tsize;
size_t psize;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: Send packet() Buffer %u\n", size);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: Send packet() Buffer %u\n", size);
h->th = NULL;
if ((0 == size) || (NULL == buf))
{
tsize = 0;
while ((NULL != (th = h->th_head)) && (size >= th->size))
{
-#if DEBUG
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: type: %u\n",
- ntohs (((struct GNUNET_MessageHeader *)&th[1])->type));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: size: %u\n",
- ntohs (((struct GNUNET_MessageHeader *)&th[1])->size));
-#endif
if (NULL != th->notify)
{
- if (th->target == 0)
+ if (th->tunnel->tid >= GNUNET_MESH_LOCAL_TUNNEL_ID_SERV)
+ {
+ /* traffic to origin */
+ struct GNUNET_MESH_ToOrigin to;
+ struct GNUNET_MessageHeader *mh;
+
+ GNUNET_assert (size >= th->size);
+ mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (to)];
+ psize =
+ th->notify (th->notify_cls, size - sizeof (to), mh);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: to origin, type %u\n",
+ ntohs (mh->type));
+ if (psize > 0)
+ {
+ psize += sizeof (to);
+ GNUNET_assert (size >= psize);
+ to.header.size = htons (psize);
+ to.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_TO_ORIGIN);
+ to.tid = htonl (th->tunnel->tid);
+ memset (&to.oid, 0, sizeof (struct GNUNET_PeerIdentity));
+ memset (&to.sender, 0, sizeof (struct GNUNET_PeerIdentity));
+ memcpy (cbuf, &to, sizeof (to));
+ }
+ }
+ else if (th->target == 0)
{
/* multicast */
struct GNUNET_MESH_Multicast mc;
+ struct GNUNET_MessageHeader *mh;
- GNUNET_assert (size >= sizeof (mc) + th->size);
+ GNUNET_assert (size >= th->size);
+ mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (mc)];
psize =
- th->notify (th->notify_cls, size - sizeof (mc), &cbuf[sizeof (mc)]);
+ th->notify (th->notify_cls, size - sizeof (mc), mh);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: multicast, type %u\n",
+ ntohs (mh->type));
if (psize > 0)
{
- mc.header.size = htons (sizeof (mc) + th->size);
+ psize += sizeof (mc);
+ GNUNET_assert (size >= psize);
+ mc.header.size = htons (psize);
mc.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_MULTICAST);
mc.tid = htonl (th->tunnel->tid);
- memset (&mc.oid, 0, sizeof (struct GNUNET_PeerIdentity)); /* myself */
+ memset (&mc.oid, 0, sizeof (struct GNUNET_PeerIdentity));
memcpy (cbuf, &mc, sizeof (mc));
- psize = th->size + sizeof (mc);
}
}
else
{
/* unicast */
struct GNUNET_MESH_Unicast uc;
+ struct GNUNET_MessageHeader *mh;
- GNUNET_assert (size >= sizeof (uc) + th->size);
+ GNUNET_assert (size >= th->size);
+ mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (uc)];
psize =
- th->notify (th->notify_cls, size - sizeof (uc), &cbuf[sizeof (uc)]);
+ th->notify (th->notify_cls, size - sizeof (uc), mh);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: unicast, type %u\n",
+ ntohs (mh->type));
if (psize > 0)
{
- uc.header.size = htons (sizeof (uc) + th->size);
+ psize += sizeof (uc);
+ GNUNET_assert (size >= psize);
+ uc.header.size = htons (psize);
uc.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_UNICAST);
uc.tid = htonl (th->tunnel->tid);
- memset (&uc.oid, 0, sizeof (struct GNUNET_PeerIdentity)); /* myself */
+ memset (&uc.oid, 0, sizeof (struct GNUNET_PeerIdentity));
GNUNET_PEER_resolve (th->target, &uc.destination);
memcpy (cbuf, &uc, sizeof (uc));
- psize = th->size + sizeof (uc);
}
}
}
size -= psize;
tsize += psize;
}
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: total size: %u\n", tsize);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: total size: %u\n", tsize);
if (NULL != (th = h->th_head))
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: next size: %u\n", th->size);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: next size: %u\n", th->size);
h->th =
GNUNET_CLIENT_notify_transmit_ready (h->client, th->size,
GNUNET_TIME_UNIT_FOREVER_REL,
GNUNET_YES, &send_callback, h);
}
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: Send packet() END\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: Send packet() END\n");
if (GNUNET_NO == h->in_receive)
{
h->in_receive = GNUNET_YES;
const GNUNET_MESH_ApplicationType *stypes)
{
struct GNUNET_MESH_Handle *h;
- struct GNUNET_MESH_ClientConnect *msg;
- GNUNET_MESH_ApplicationType *apps;
- uint16_t napps;
- uint16_t *types;
- uint16_t ntypes;
- size_t size;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: GNUNET_MESH_connect()\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: GNUNET_MESH_connect()\n");
h = GNUNET_malloc (sizeof (struct GNUNET_MESH_Handle));
h->cfg = cfg;
h->max_queue_size = queue_size;
return NULL;
}
h->cls = cls;
- h->message_handlers = handlers;
+ /* FIXME memdup? */
h->applications = stypes;
+ h->message_handlers = handlers;
h->next_tid = GNUNET_MESH_LOCAL_TUNNEL_ID_CLI;
+ h->reconnect_time = GNUNET_TIME_UNIT_MILLISECONDS;
/* count handlers and apps, calculate size */
- for (h->n_handlers = 0; handlers[h->n_handlers].type; h->n_handlers++) ;
for (h->n_applications = 0; stypes[h->n_applications]; h->n_applications++) ;
- size = sizeof (struct GNUNET_MESH_ClientConnect);
- size += h->n_handlers * sizeof (uint16_t);
- size += h->n_applications * sizeof (GNUNET_MESH_ApplicationType);
-
- {
- char buf[size];
-
- /* build connection packet */
- msg = (struct GNUNET_MESH_ClientConnect *) buf;
- msg->header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_CONNECT);
- msg->header.size = htons (size);
- types = (uint16_t *) & msg[1];
- for (ntypes = 0; ntypes < h->n_handlers; ntypes++)
- types[ntypes] = h->message_handlers[ntypes].type;
- apps = (GNUNET_MESH_ApplicationType *) &types[ntypes];
- for (napps = 0; napps < h->n_applications; napps++)
- apps[napps] = h->applications[napps];
- msg->applications = htons (napps);
- msg->types = htons (ntypes);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "mesh: Sending %lu bytes long message %d types and %d apps\n",
- ntohs (msg->header.size), ntypes, napps);
- send_packet (h, &msg->header);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: GNUNET_MESH_connect() END\n");
+ for (h->n_handlers = 0; handlers[h->n_handlers].type; h->n_handlers++) ;
+ send_connect (h);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: GNUNET_MESH_connect() END\n");
return h;
}
GNUNET_MESH_disconnect (struct GNUNET_MESH_Handle *handle)
{
struct GNUNET_MESH_Tunnel *t;
+ struct GNUNET_MESH_Tunnel *aux;
- for (t = handle->tunnels_head; NULL != t; t = t->next)
+ t = handle->tunnels_head;
+ while (NULL != t)
{
+ aux = t->next;
destroy_tunnel (t);
+ t = aux;
}
if (NULL != handle->th)
{
*/
struct GNUNET_MESH_Tunnel *
GNUNET_MESH_tunnel_create (struct GNUNET_MESH_Handle *h, void *tunnel_ctx,
- GNUNET_MESH_TunnelConnectHandler connect_handler,
- GNUNET_MESH_TunnelDisconnectHandler
- disconnect_handler, void *handler_cls)
+ GNUNET_MESH_PeerConnectHandler connect_handler,
+ GNUNET_MESH_PeerDisconnectHandler disconnect_handler,
+ void *handler_cls)
{
struct GNUNET_MESH_Tunnel *t;
struct GNUNET_MESH_TunnelMessage msg;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: Creating new tunnel\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: Creating new tunnel\n");
t = create_tunnel (h, 0);
t->connect_handler = connect_handler;
t->disconnect_handler = disconnect_handler;
* @param tun tunnel handle
*/
void
-GNUNET_MESH_tunnel_destroy (struct GNUNET_MESH_Tunnel *t)
+GNUNET_MESH_tunnel_destroy (struct GNUNET_MESH_Tunnel *tunnel)
{
struct GNUNET_MESH_Handle *h;
struct GNUNET_MESH_TunnelMessage msg;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "mesh: Destroying tunnel\n");
- h = t->mesh;
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "mesh: Destroying tunnel\n");
+ h = tunnel->mesh;
- if (0 != t->owner)
- GNUNET_PEER_change_rc (t->owner, -1);
+ if (0 != tunnel->owner)
+ GNUNET_PEER_change_rc (tunnel->owner, -1);
msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_TUNNEL_DESTROY);
msg.header.size = htons (sizeof (struct GNUNET_MESH_TunnelMessage));
- msg.tunnel_id = htonl (t->tid);
- destroy_tunnel (t);
+ msg.tunnel_id = htonl (tunnel->tid);
+ destroy_tunnel (tunnel);
send_packet (h, &msg.header);
}
* connect handler is called.
*
* @param tunnel handle to existing tunnel
- * @param timeout how long to try to establish a connection
* @param peer peer to add
*/
void
{
if (tunnel->peers[i]->id == peer_id)
{
+ /* Peer already exists in tunnel */
GNUNET_PEER_change_rc (peer_id, -1);
GNUNET_break (0);
return;
void *notify_cls)
{
struct GNUNET_MESH_TransmitHandle *th;
+ struct GNUNET_MESH_TransmitHandle *least_priority_th;
+ uint32_t least_priority;
size_t overhead;
- GNUNET_assert(NULL != notify);
+#if MESH_API_DEBUG
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: mesh notify transmit ready called\n");
+ if (NULL != target)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: target %s\n",
+ GNUNET_i2s (target));
+ else
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "mesh: target multicast\n");
+#endif
+ GNUNET_assert (NULL != notify);
if (tunnel->mesh->npackets >= tunnel->mesh->max_queue_size &&
tunnel->npackets > 0)
- return NULL; /* queue full */
+ {
+ /* queue full */
+ if (0 == priority)
+ return NULL;
+ th = tunnel->mesh->th_tail;
+ least_priority = priority;
+ least_priority_th = NULL;
+ while (NULL != th)
+ {
+ if (th->priority < least_priority && th->tunnel->npackets > 1)
+ {
+ least_priority_th = th;
+ least_priority = th->priority;
+ }
+ th = th->prev;
+ }
+ if (NULL == least_priority_th)
+ return NULL;
+ /* Can't be a control message */
+ GNUNET_assert (NULL != least_priority_th->notify);
+ least_priority_th->notify (notify_cls, 0, NULL);
+ least_priority_th->tunnel->npackets--;
+ tunnel->mesh->npackets--;
+ GNUNET_CONTAINER_DLL_remove (tunnel->mesh->th_head, tunnel->mesh->th_tail,
+ least_priority_th);
+ if (GNUNET_SCHEDULER_NO_TASK != least_priority_th->timeout_task)
+ GNUNET_SCHEDULER_cancel (least_priority_th->timeout_task);
+ GNUNET_free (least_priority_th);
+ }
tunnel->npackets++;
tunnel->mesh->npackets++;
th = GNUNET_malloc (sizeof (struct GNUNET_MESH_TransmitHandle));
th->priority = priority;
th->timeout = GNUNET_TIME_relative_to_absolute (maxdelay);
th->target = GNUNET_PEER_intern (target);
- overhead =
- (NULL ==
- target) ? sizeof (struct GNUNET_MESH_Multicast) : sizeof (struct
- GNUNET_MESH_Unicast);
+ if (tunnel->tid >= GNUNET_MESH_LOCAL_TUNNEL_ID_SERV)
+ overhead = sizeof (struct GNUNET_MESH_ToOrigin);
+ else if (NULL == target)
+ overhead = sizeof (struct GNUNET_MESH_Multicast);
+ else
+ overhead = sizeof (struct GNUNET_MESH_Unicast);
th->size = notify_size + overhead;
th->notify = notify;
th->notify_cls = notify_cls;
add_to_queue (tunnel->mesh, th);
+ if (NULL != tunnel->mesh->th)
+ return th;
+ tunnel->mesh->th =
+ GNUNET_CLIENT_notify_transmit_ready (tunnel->mesh->client,
+ th->size,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ GNUNET_YES,
+ &send_callback,
+ tunnel->mesh);
return th;
}