- use strings

[oweals/gnunet.git] / src / mesh / mesh_api.c

diff --git a/src/mesh/mesh_api.c b/src/mesh/mesh_api.c
index b9ac8f94d17aeff378275408dd623d5f1fe7cc11..6bdc2569508af09c37876b2aabb46e988428d5cf 100644 (file)
--- a/src/mesh/mesh_api.c
+++ b/src/mesh/mesh_api.c
@@ -21,7 +21,6 @@
  * @author Bartlomiej Polot
  *
  * STRUCTURE:
- * - CONSTANTS
  * - DATA STRUCTURES
  * - DECLARATIONS
  * - AUXILIARY FUNCTIONS
@@ -43,15 +42,6 @@
 #define LOG(kind,...) GNUNET_log_from (kind, "mesh-api",__VA_ARGS__)
 
 
-/******************************************************************************/
-/************************        CONSTANTS         ****************************/
-/******************************************************************************/
-
-#define HIGH_PID 0xFFFF0000
-#define LOW_PID 0x0000FFFF
-
-#define PID_OVERFLOW(pid, max) (pid > HIGH_PID && max < LOW_PID)
-
 /******************************************************************************/
 /************************      DATA STRUCTURES     ****************************/
 /******************************************************************************/
@@ -453,6 +443,7 @@ create_tunnel (struct GNUNET_MESH_Handle *h, MESH_TunnelNumber tid)
   {
     t->tid = tid;
   }
+  t->max_pid = 1;
   return t;
 }
 
@@ -682,6 +673,28 @@ send_packet (struct GNUNET_MESH_Handle *h,
              struct GNUNET_MESH_Tunnel *tunnel);
 
 
+/**
+ * Send an ack on the tunnel to confirm the processing of a message.
+ * 
+ * @param h Mesh handle.
+ * @param t Tunnel on which to send the ACK.
+ */
+static void
+send_ack (struct GNUNET_MESH_Handle *h, struct GNUNET_MESH_Tunnel *t)
+{
+  struct GNUNET_MESH_LocalAck msg;
+
+  msg.header.type = htons (GNUNET_MESSAGE_TYPE_MESH_LOCAL_ACK);
+  msg.header.size = htons (sizeof (msg));
+  msg.tunnel_id = htonl (t->tid);
+  msg.max_pid = t->pid + 1;
+
+  send_packet (h, &msg.header, t);
+  return;
+}
+
+
+
 /**
  * Reconnect callback: tries to reconnect again after a failer previous
  * reconnecttion
@@ -755,8 +768,9 @@ do_reconnect (struct GNUNET_MESH_Handle *h)
   LOG (GNUNET_ERROR_TYPE_DEBUG, "*****************************\n");
   LOG (GNUNET_ERROR_TYPE_DEBUG, "*******   RECONNECT   *******\n");
   LOG (GNUNET_ERROR_TYPE_DEBUG, "*****************************\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "******** on %p *******\n", h);
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "*****************************\n");
 
-  h->in_receive = GNUNET_NO;
   /* disconnect */
   if (NULL != h->th)
   {
@@ -869,6 +883,7 @@ static void
 reconnect (struct GNUNET_MESH_Handle *h)
 {
   LOG (GNUNET_ERROR_TYPE_DEBUG, "Requested RECONNECT\n");
+  h->in_receive = GNUNET_NO;
   if (GNUNET_SCHEDULER_NO_TASK == h->reconnect_task)
     h->reconnect_task = GNUNET_SCHEDULER_add_delayed (h->reconnect_time,
                                                       &reconnect_cbk, h);
@@ -1103,6 +1118,7 @@ process_incoming_data (struct GNUNET_MESH_Handle *h,
       {
         LOG (GNUNET_ERROR_TYPE_DEBUG,
              "callback completed successfully\n");
+        send_ack (h, t);
       }
     }
   }
@@ -1171,8 +1187,8 @@ msg_received (void *cls, const struct GNUNET_MessageHeader *msg)
     reconnect (h);
     return;
   }
-  LOG (GNUNET_ERROR_TYPE_DEBUG, "received a message type %hu from MESH\n",
-       ntohs (msg->type));
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "received a message type %s from MESH\n",
+       GNUNET_MESH_DEBUG_M2S (ntohs (msg->type)));
   switch (ntohs (msg->type))
   {
     /* Notify of a new incoming tunnel */
@@ -1201,12 +1217,20 @@ msg_received (void *cls, const struct GNUNET_MessageHeader *msg)
   default:
     /* We shouldn't get any other packages, log and ignore */
     LOG (GNUNET_ERROR_TYPE_WARNING,
-         "unsolicited message form service (type %d)\n",
+         "unsolicited message form service (type %hu)\n",
          ntohs (msg->type));
   }
   LOG (GNUNET_ERROR_TYPE_DEBUG, "message processed\n");
-  GNUNET_CLIENT_receive (h->client, &msg_received, h,
-                         GNUNET_TIME_UNIT_FOREVER_REL);
+  if (GNUNET_YES == h->in_receive)
+  {
+    GNUNET_CLIENT_receive (h->client, &msg_received, h,
+                           GNUNET_TIME_UNIT_FOREVER_REL);
+  }
+  else
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "in receive off, not calling CLIENT_receive\n");
+  }
 }
 
 
@@ -1251,7 +1275,8 @@ send_callback (void *cls, size_t size, void *buf)
     if (GNUNET_YES == th_is_payload (th))
     {
       LOG (GNUNET_ERROR_TYPE_DEBUG, " payload\n");
-      if (t->max_pid < t->pid && ! PID_OVERFLOW (t->pid, t->max_pid)) {
+      if (t->max_pid < t->pid && GNUNET_NO == PID_OVERFLOW (t->pid, t->max_pid))
+      {
         /* This tunnel is not ready to transmit yet, try next message */
         next = th->next;
         continue;
@@ -1266,8 +1291,8 @@ send_callback (void *cls, size_t size, void *buf)
         GNUNET_assert (size >= th->size);
         mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (to)];
         psize = th->notify (th->notify_cls, size - sizeof (to), mh);
-        LOG (GNUNET_ERROR_TYPE_DEBUG, "  to origin, type %u\n",
-             ntohs (mh->type));
+        LOG (GNUNET_ERROR_TYPE_DEBUG, "  to origin, type %s\n",
+             GNUNET_MESH_DEBUG_M2S (ntohs (mh->type)));
         if (psize > 0)
         {
           psize += sizeof (to);
@@ -1290,8 +1315,8 @@ send_callback (void *cls, size_t size, void *buf)
         GNUNET_assert (size >= th->size);
         mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (mc)];
         psize = th->notify (th->notify_cls, size - sizeof (mc), mh);
-        LOG (GNUNET_ERROR_TYPE_DEBUG, "  multicast, type %u\n",
-             ntohs (mh->type));
+        LOG (GNUNET_ERROR_TYPE_DEBUG, "  multicast, type %s\n",
+             GNUNET_MESH_DEBUG_M2S (ntohs (mh->type)));
         if (psize > 0)
         {
           psize += sizeof (mc);
@@ -1314,8 +1339,8 @@ send_callback (void *cls, size_t size, void *buf)
         GNUNET_assert (size >= th->size);
         mh = (struct GNUNET_MessageHeader *) &cbuf[sizeof (uc)];
         psize = th->notify (th->notify_cls, size - sizeof (uc), mh);
-        LOG (GNUNET_ERROR_TYPE_DEBUG, "  unicast, type %u\n",
-             ntohs (mh->type));
+        LOG (GNUNET_ERROR_TYPE_DEBUG, "  unicast, type %s\n",
+             GNUNET_MESH_DEBUG_M2S (ntohs (mh->type)));
         if (psize > 0)
         {
           psize += sizeof (uc);
@@ -1335,8 +1360,8 @@ send_callback (void *cls, size_t size, void *buf)
     {
       struct GNUNET_MessageHeader *mh = (struct GNUNET_MessageHeader *) &th[1];
 
-      LOG (GNUNET_ERROR_TYPE_DEBUG, "  mesh traffic, type %u\n",
-             ntohs (mh->type));
+      LOG (GNUNET_ERROR_TYPE_DEBUG, "  mesh traffic, type %s\n",
+             GNUNET_MESH_DEBUG_M2S (ntohs (mh->type)));
       memcpy (cbuf, &th[1], th->size);
       psize = th->size;
     }
@@ -1973,6 +1998,9 @@ GNUNET_MESH_notify_transmit_ready (struct GNUNET_MESH_Tunnel *tunnel, int cork,
   add_to_queue (tunnel->mesh, th);
   if (NULL != tunnel->mesh->th)
     return th;
+  if (GNUNET_NO == PID_OVERFLOW(tunnel->pid, tunnel->max_pid) &&
+      tunnel->max_pid <= tunnel->pid)
+    return th;
   LOG (GNUNET_ERROR_TYPE_DEBUG, "    call notify tmt rdy\n");
   tunnel->mesh->th =
       GNUNET_CLIENT_notify_transmit_ready (tunnel->mesh->client, th->size,
@@ -1993,6 +2021,7 @@ GNUNET_MESH_notify_transmit_ready_cancel (struct GNUNET_MESH_TransmitHandle *th)
 {
   struct GNUNET_MESH_Handle *mesh;
 
+  th->tunnel->packet_size = 0;
   mesh = th->tunnel->mesh;
   if (th->timeout_task != GNUNET_SCHEDULER_NO_TASK)
     GNUNET_SCHEDULER_cancel (th->timeout_task);