Start implementation of some functions.
[oweals/gnunet.git] / src / dht / gnunet-service-dht_clients.c
index 20fbba789672e0ee1a7105d716024b3fdd4223ff..ec957737f9aee9e423a2c7450db788912c13b24a 100644 (file)
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2009, 2010, 2011 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
@@ -110,7 +110,7 @@ struct ClientList
 
 
 /**
- * Entry in the DHT routing table for a client's GET request.
+ * Entry in the local forwarding map for a client's GET request.
  */
 struct ClientQueryRecord
 {
@@ -199,7 +199,7 @@ struct ClientMonitorRecord
    * Previous element in DLL.
    */
   struct ClientMonitorRecord    *prev;
-  
+
   /**
    * Type of blocks that are of interest
    */
@@ -253,7 +253,7 @@ static struct ClientMonitorRecord *monitor_head;
 static struct ClientMonitorRecord *monitor_tail;
 
 /**
- * Hashmap for fast key based lookup, maps keys to 'struct ClientQueryRecord' entries.
+ * Hashmap for fast key based lookup, maps keys to `struct ClientQueryRecord` entries.
  */
 static struct GNUNET_CONTAINER_MultiHashMap *forward_map;
 
@@ -265,7 +265,7 @@ static struct GNUNET_CONTAINER_Heap *retry_heap;
 /**
  * Task that re-transmits requests (using retry_heap).
  */
-static GNUNET_SCHEDULER_TaskIdentifier retry_task;
+static struct GNUNET_SCHEDULER_Task * retry_task;
 
 
 /**
@@ -367,7 +367,7 @@ handle_client_disconnect (void *cls,
   struct ClientMonitorRecord *monitor;
 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Local client %p disconnects\n", 
+             "Local client %p disconnects\n",
              client);
   pos = find_active_client (client);
   GNUNET_CONTAINER_DLL_remove (client_head, client_tail, pos);
@@ -384,7 +384,7 @@ handle_client_disconnect (void *cls,
     if (monitor->client == pos)
     {
       struct ClientMonitorRecord *next;
-      
+
       GNUNET_free_non_null (monitor->key);
       next = monitor->next;
       GNUNET_CONTAINER_DLL_remove (monitor_head, monitor_tail, monitor);
@@ -427,7 +427,9 @@ transmit_request (struct ClientQueryRecord *cqr)
                                          GNUNET_CONSTANTS_BLOOMFILTER_K);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Initiating GET for %s, replication %u, already have %u replies\n",
-       GNUNET_h2s(&cqr->key), cqr->replication, cqr->seen_replies_count);
+       GNUNET_h2s (&cqr->key),
+       cqr->replication,
+       cqr->seen_replies_count);
   GDS_NEIGHBOURS_handle_get (cqr->type, cqr->msg_options, cqr->replication,
                              0 /* hop count */ ,
                              &cqr->key, cqr->xquery, cqr->xquery_size, reply_bf,
@@ -457,7 +459,7 @@ transmit_next_request_task (void *cls,
   struct ClientQueryRecord *cqr;
   struct GNUNET_TIME_Relative delay;
 
-  retry_task = GNUNET_SCHEDULER_NO_TASK;
+  retry_task = NULL;
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
   while (NULL != (cqr = GNUNET_CONTAINER_heap_remove_root (retry_heap)))
@@ -511,8 +513,8 @@ handle_dht_local_put (void *cls, struct GNUNET_SERVER_Client *client,
                             ("# PUT requests received from clients"), 1,
                             GNUNET_NO);
   dht_msg = (const struct GNUNET_DHT_ClientPutMessage *) message;
-  LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG, "XDHT CLIENT-PUT %s @ %u\n",
-               GNUNET_h2s (&dht_msg->key), getpid ());
+  LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG, "R5N CLIENT-PUT %s\n",
+               GNUNET_h2s_full (&dht_msg->key));
   /* give to local clients */
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Handling local PUT of %u-bytes for query %s\n",
@@ -550,7 +552,7 @@ handle_dht_local_put (void *cls, struct GNUNET_SERVER_Client *client,
                            &dht_msg[1],
                            size - sizeof (struct GNUNET_DHT_ClientPutMessage));
   GNUNET_CONTAINER_bloomfilter_free (peer_bf);
-  pm = GNUNET_malloc (sizeof (struct PendingMessage) + 
+  pm = GNUNET_malloc (sizeof (struct PendingMessage) +
                      sizeof (struct GNUNET_DHT_ClientPutConfirmationMessage));
   conf = (struct GNUNET_DHT_ClientPutConfirmationMessage *) &pm[1];
   conf->header.size = htons (sizeof (struct GNUNET_DHT_ClientPutConfirmationMessage));
@@ -598,8 +600,8 @@ handle_dht_local_get (void *cls, struct GNUNET_SERVER_Client *client,
        "Received GET request for %s from local client %p, xq: %.*s\n",
        GNUNET_h2s (&get->key), client, xquery_size, xquery);
 
-  LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG, "XDHT CLIENT-GET %s @ %u\n",
-               GNUNET_h2s (&get->key), getpid ());
+  LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG, "R5N CLIENT-GET %s\n",
+               GNUNET_h2s_full (&get->key));
 
 
   cqr = GNUNET_malloc (sizeof (struct ClientQueryRecord) + xquery_size);
@@ -626,7 +628,7 @@ handle_dht_local_get (void *cls, struct GNUNET_SERVER_Client *client,
                            GDS_NEIGHBOURS_get_id(),
                            &get->key);
   /* start remote requests */
-  if (GNUNET_SCHEDULER_NO_TASK != retry_task)
+  if (NULL != retry_task)
     GNUNET_SCHEDULER_cancel (retry_task);
   retry_task = GNUNET_SCHEDULER_add_now (&transmit_next_request_task, NULL);
   /* perform local lookup */
@@ -822,7 +824,7 @@ handle_dht_local_monitor (void *cls, struct GNUNET_SERVER_Client *client,
   const struct GNUNET_DHT_MonitorStartStopMessage *msg;
 
   msg = (struct GNUNET_DHT_MonitorStartStopMessage *) message;
-  r = GNUNET_malloc (sizeof(struct ClientMonitorRecord));
+  r = GNUNET_new (struct ClientMonitorRecord);
 
   r->client = find_active_client(client);
   r->type = ntohl(msg->type);
@@ -833,13 +835,14 @@ handle_dht_local_monitor (void *cls, struct GNUNET_SERVER_Client *client,
       r->key = NULL;
   else
   {
-    r->key = GNUNET_malloc (sizeof (struct GNUNET_HashCode));
+    r->key = GNUNET_new (struct GNUNET_HashCode);
     memcpy (r->key, &msg->key, sizeof (struct GNUNET_HashCode));
   }
   GNUNET_CONTAINER_DLL_insert (monitor_head, monitor_tail, r);
   GNUNET_SERVER_receive_done (client, GNUNET_OK);
 }
 
+
 /**
  * Handler for monitor stop messages
  *
@@ -884,7 +887,7 @@ handle_dht_local_monitor_stop (void *cls, struct GNUNET_SERVER_Client *client,
     }
     r = r->next;
   }
+
   GNUNET_SERVER_receive_done (client, GNUNET_OK);
 }
 
@@ -1025,8 +1028,8 @@ forward_reply (void *cls, const struct GNUNET_HashCode * key, void *value)
   unsigned int i;
 
   LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG,
-              "XDHT CLIENT-RESULT %s\n",
-               GNUNET_h2s (key));
+              "R5N CLIENT-RESULT %s\n",
+               GNUNET_h2s_full (key));
   if ((record->type != GNUNET_BLOCK_TYPE_ANY) && (record->type != frc->type))
   {
     LOG (GNUNET_ERROR_TYPE_DEBUG,
@@ -1052,12 +1055,20 @@ forward_reply (void *cls, const struct GNUNET_HashCode * key, void *value)
       return GNUNET_YES;        /* duplicate */
     }
   eval =
-      GNUNET_BLOCK_evaluate (GDS_block_context, record->type, key, NULL, 0,
-                             record->xquery, record->xquery_size, frc->data,
+      GNUNET_BLOCK_evaluate (GDS_block_context,
+                             record->type,
+                             GNUNET_BLOCK_EO_NONE,
+                             key,
+                             NULL,
+                             0,
+                             record->xquery,
+                             record->xquery_size,
+                             frc->data,
                              frc->data_size);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Evaluation result is %d for key %s for local client's query\n",
-       (int) eval, GNUNET_h2s (key));
+       (int) eval,
+       GNUNET_h2s (key));
   switch (eval)
   {
   case GNUNET_BLOCK_EVALUATION_OK_LAST:
@@ -1198,6 +1209,7 @@ GDS_CLIENTS_handle_reply (struct GNUNET_TIME_Absolute expiration,
   frc.type = type;
   GNUNET_CONTAINER_multihashmap_get_multiple (forward_map, key, &forward_reply,
                                               &frc);
+
   if (GNUNET_NO == frc.do_copy)
   {
     /* did not match any of the requests, free! */
@@ -1226,7 +1238,7 @@ void
 GDS_CLIENTS_process_get (uint32_t options,
                          enum GNUNET_BLOCK_Type type,
                          uint32_t hop_count,
-                         uint32_t desired_replication_level, 
+                         uint32_t desired_replication_level,
                          unsigned int path_length,
                          const struct GNUNET_PeerIdentity *path,
                          const struct GNUNET_HashCode * key)
@@ -1386,7 +1398,7 @@ void
 GDS_CLIENTS_process_put (uint32_t options,
                          enum GNUNET_BLOCK_Type type,
                          uint32_t hop_count,
-                         uint32_t desired_replication_level, 
+                         uint32_t desired_replication_level,
                          unsigned int path_length,
                          const struct GNUNET_PeerIdentity *path,
                          struct GNUNET_TIME_Absolute exp,
@@ -1492,10 +1504,10 @@ GDS_CLIENTS_done ()
 {
   GNUNET_assert (client_head == NULL);
   GNUNET_assert (client_tail == NULL);
-  if (GNUNET_SCHEDULER_NO_TASK != retry_task)
+  if (NULL != retry_task)
   {
     GNUNET_SCHEDULER_cancel (retry_task);
-    retry_task = GNUNET_SCHEDULER_NO_TASK;
+    retry_task = NULL;
   }
   if (NULL != retry_heap)
   {