#include "dht.h"
+/**
+ * Should routing details be logged to stderr (for debugging)?
+ */
+#define LOG_TRAFFIC(kind,...) GNUNET_log_from (kind, "dht-traffic",__VA_ARGS__)
+
+#define LOG(kind,...) GNUNET_log_from (kind, "dht-clients",__VA_ARGS__)
+
/**
* Linked list of messages to send to clients.
*/
* Handle to the current transmission request, NULL
* if none pending.
*/
- struct GNUNET_CONNECTION_TransmitHandle *transmit_handle;
+ struct GNUNET_SERVER_TransmitHandle *transmit_handle;
/**
* Linked list of pending messages for this client
/**
* The key this request was about
*/
- GNUNET_HashCode key;
+ struct GNUNET_HashCode key;
/**
* Client responsible for the request.
/**
* Replies we have already seen for this request.
*/
- GNUNET_HashCode *seen_replies;
+ struct GNUNET_HashCode *seen_replies;
/**
* Pointer to this nodes heap location in the retry-heap (for fast removal)
* Previous element in DLL.
*/
struct ClientMonitorRecord *prev;
-
+
/**
* Type of blocks that are of interest
*/
/**
* Key of data of interest, NULL for all.
*/
- GNUNET_HashCode *key;
+ struct GNUNET_HashCode *key;
+
+ /**
+ * Flag whether to notify about GET messages.
+ */
+ int16_t get;
+
+ /**
+ * Flag whether to notify about GET_REPONSE messages.
+ */
+ int16_t get_resp;
+
+ /**
+ * Flag whether to notify about PUT messages.
+ */
+ uint16_t put;
/**
* Client to notify of these requests.
static struct ClientMonitorRecord *monitor_head;
/**
- * List of active monitoring requests..
+ * List of active monitoring requests.
*/
static struct ClientMonitorRecord *monitor_tail;
static GNUNET_SCHEDULER_TaskIdentifier retry_task;
+/**
+ * Task run to check for messages that need to be sent to a client.
+ *
+ * @param client a ClientList, containing the client and any messages to be sent to it
+ */
+static void
+process_pending_messages (struct ClientList *client);
+
+
+/**
+ * Add a PendingMessage to the clients list of messages to be sent
+ *
+ * @param client the active client to send the message to
+ * @param pending_message the actual message to send
+ */
+static void
+add_pending_message (struct ClientList *client,
+ struct PendingMessage *pending_message)
+{
+ GNUNET_CONTAINER_DLL_insert_tail (client->pending_head, client->pending_tail,
+ pending_message);
+ process_pending_messages (client);
+}
+
+
/**
* Find a client if it exists, add it otherwise.
*
return pos;
pos = pos->next;
}
- ret = GNUNET_malloc (sizeof (struct ClientList));
+ ret = GNUNET_new (struct ClientList);
ret->client_handle = client;
GNUNET_CONTAINER_DLL_insert (client_head, client_tail, ret);
return ret;
* @param cls client to search for in source routes
* @param key current key code (ignored)
* @param value value in the hash map, a ClientQueryRecord
- * @return GNUNET_YES (we should continue to iterate)
+ * @return #GNUNET_YES (we should continue to iterate)
*/
static int
-remove_client_records (void *cls, const GNUNET_HashCode * key, void *value)
+remove_client_records (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ClientList *client = cls;
struct ClientQueryRecord *record = value;
if (record->client != client)
return GNUNET_YES;
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Removing client %p's record for key %s\n", client,
GNUNET_h2s (key));
-#endif
GNUNET_assert (GNUNET_YES ==
GNUNET_CONTAINER_multihashmap_remove (forward_map, key,
record));
* for the last call when the server is destroyed
*/
static void
-handle_client_disconnect (void *cls, struct GNUNET_SERVER_Client *client)
+handle_client_disconnect (void *cls,
+ struct GNUNET_SERVER_Client *client)
{
struct ClientList *pos;
struct PendingMessage *reply;
struct ClientMonitorRecord *monitor;
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Local client %p disconnects\n", client);
-#endif
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Local client %p disconnects\n",
+ client);
pos = find_active_client (client);
GNUNET_CONTAINER_DLL_remove (client_head, client_tail, pos);
if (pos->transmit_handle != NULL)
- GNUNET_CONNECTION_notify_transmit_ready_cancel (pos->transmit_handle);
+ GNUNET_SERVER_notify_transmit_ready_cancel (pos->transmit_handle);
while (NULL != (reply = pos->pending_head))
{
GNUNET_CONTAINER_DLL_remove (pos->pending_head, pos->pending_tail, reply);
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);
peer_bf =
GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE,
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);
GDS_NEIGHBOURS_handle_get (cqr->type, cqr->msg_options, cqr->replication,
0 /* hop count */ ,
&cqr->key, cqr->xquery, cqr->xquery_size, reply_bf,
GNUNET_CONTAINER_bloomfilter_free (reply_bf);
GNUNET_CONTAINER_bloomfilter_free (peer_bf);
- /* exponential back-off for retries, max 1h */
- cqr->retry_frequency =
- GNUNET_TIME_relative_min (GNUNET_TIME_UNIT_HOURS,
- GNUNET_TIME_relative_multiply
- (cqr->retry_frequency, 2));
+ /* exponential back-off for retries.
+ * max GNUNET_TIME_STD_EXPONENTIAL_BACKOFF_THRESHOLD (15 min) */
+ cqr->retry_frequency = GNUNET_TIME_STD_BACKOFF (cqr->retry_frequency);
cqr->retry_time = GNUNET_TIME_relative_to_absolute (cqr->retry_frequency);
}
{
cqr->hnode = NULL;
delay = GNUNET_TIME_absolute_get_remaining (cqr->retry_time);
- if (delay.rel_value > 0)
+ if (delay.rel_value_us > 0)
{
cqr->hnode =
GNUNET_CONTAINER_heap_insert (retry_heap, cqr,
- cqr->retry_time.abs_value);
+ cqr->retry_time.abs_value_us);
retry_task =
GNUNET_SCHEDULER_add_delayed (delay, &transmit_next_request_task,
NULL);
transmit_request (cqr);
cqr->hnode =
GNUNET_CONTAINER_heap_insert (retry_heap, cqr,
- cqr->retry_time.abs_value);
+ cqr->retry_time.abs_value_us);
}
}
const struct GNUNET_DHT_ClientPutMessage *dht_msg;
struct GNUNET_CONTAINER_BloomFilter *peer_bf;
uint16_t size;
+ struct PendingMessage *pm;
+ struct GNUNET_DHT_ClientPutConfirmationMessage *conf;
size = ntohs (message->size);
if (size < sizeof (struct GNUNET_DHT_ClientPutMessage))
("# 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 ());
/* give to local clients */
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Handling local PUT of %u-bytes for query %s\n",
- size - sizeof (struct GNUNET_DHT_ClientPutMessage),
- GNUNET_h2s (&dht_msg->key));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Handling local PUT of %u-bytes for query %s\n",
+ size - sizeof (struct GNUNET_DHT_ClientPutMessage),
+ GNUNET_h2s (&dht_msg->key));
GDS_CLIENTS_handle_reply (GNUNET_TIME_absolute_ntoh (dht_msg->expiration),
&dht_msg->key, 0, NULL, 0, NULL,
ntohl (dht_msg->type),
peer_bf, &dht_msg->key, 0, NULL, &dht_msg[1],
size -
sizeof (struct GNUNET_DHT_ClientPutMessage));
+ GDS_CLIENTS_process_put (ntohl (dht_msg->options),
+ ntohl (dht_msg->type),
+ 0,
+ ntohl (dht_msg->desired_replication_level),
+ 1,
+ GDS_NEIGHBOURS_get_id(),
+ GNUNET_TIME_absolute_ntoh (dht_msg->expiration),
+ &dht_msg->key,
+ &dht_msg[1],
+ size - sizeof (struct GNUNET_DHT_ClientPutMessage));
GNUNET_CONTAINER_bloomfilter_free (peer_bf);
+ 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));
+ conf->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_CLIENT_PUT_OK);
+ conf->reserved = htonl (0);
+ conf->unique_id = dht_msg->unique_id;
+ pm->msg = &conf->header;
+ add_pending_message (find_active_client (client), pm);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
/**
- * Handler for any generic DHT messages, calls the appropriate handler
- * depending on message type, sends confirmation if responses aren't otherwise
- * expected.
+ * Handler for DHT GET messages from the client.
*
* @param cls closure for the service
* @param client the client we received this message from
gettext_noop
("# GET requests received from clients"), 1,
GNUNET_NO);
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request for %s from local client %p\n",
- GNUNET_h2s (&get->key), client);
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "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 ());
+
+
cqr = GNUNET_malloc (sizeof (struct ClientQueryRecord) + xquery_size);
cqr->key = get->key;
cqr->client = find_active_client (client);
cqr->xquery = (void *) &cqr[1];
memcpy (&cqr[1], xquery, xquery_size);
cqr->hnode = GNUNET_CONTAINER_heap_insert (retry_heap, cqr, 0);
- cqr->retry_frequency = GNUNET_TIME_UNIT_MILLISECONDS;
+ cqr->retry_frequency = GNUNET_TIME_UNIT_SECONDS;
cqr->retry_time = GNUNET_TIME_absolute_get ();
cqr->unique_id = get->unique_id;
cqr->xquery_size = xquery_size;
cqr->replication = ntohl (get->desired_replication_level);
cqr->msg_options = ntohl (get->options);
cqr->type = ntohl (get->type);
+ // FIXME use cqr->key, set multihashmap create to GNUNET_YES
GNUNET_CONTAINER_multihashmap_put (forward_map, &get->key, cqr,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ GDS_CLIENTS_process_get (ntohl (get->options),
+ ntohl (get->type),
+ 0,
+ ntohl (get->desired_replication_level),
+ 1,
+ GDS_NEIGHBOURS_get_id(),
+ &get->key);
/* start remote requests */
if (GNUNET_SCHEDULER_NO_TASK != retry_task)
GNUNET_SCHEDULER_cancel (retry_task);
}
+/**
+ * Closure for 'find_by_unique_id'.
+ */
+struct FindByUniqueIdContext
+{
+ /**
+ * Where to store the result, if found.
+ */
+ struct ClientQueryRecord *cqr;
+
+ uint64_t unique_id;
+};
+
+
+/**
+ * Function called for each existing DHT record for the given
+ * query. Checks if it matches the UID given in the closure
+ * and if so returns the entry as a result.
+ *
+ * @param cls the search context
+ * @param key query for the lookup (not used)
+ * @param value the 'struct ClientQueryRecord'
+ * @return GNUNET_YES to continue iteration (result not yet found)
+ */
+static int
+find_by_unique_id (void *cls,
+ const struct GNUNET_HashCode *key,
+ void *value)
+{
+ struct FindByUniqueIdContext *fui_ctx = cls;
+ struct ClientQueryRecord *cqr = value;
+
+ if (cqr->unique_id != fui_ctx->unique_id)
+ return GNUNET_YES;
+ fui_ctx->cqr = cqr;
+ return GNUNET_NO;
+}
+
+
+/**
+ * Handler for "GET result seen" messages from the client.
+ *
+ * @param cls closure for the service
+ * @param client the client we received this message from
+ * @param message the actual message received
+ */
+static void
+handle_dht_local_get_result_seen (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_DHT_ClientGetResultSeenMessage *seen;
+ uint16_t size;
+ unsigned int hash_count;
+ unsigned int old_count;
+ const struct GNUNET_HashCode *hc;
+ struct FindByUniqueIdContext fui_ctx;
+ struct ClientQueryRecord *cqr;
+
+ size = ntohs (message->size);
+ if (size < sizeof (struct GNUNET_DHT_ClientGetResultSeenMessage))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ seen = (const struct GNUNET_DHT_ClientGetResultSeenMessage *) message;
+ hash_count = (size - sizeof (struct GNUNET_DHT_ClientGetResultSeenMessage)) / sizeof (struct GNUNET_HashCode);
+ if (size != sizeof (struct GNUNET_DHT_ClientGetResultSeenMessage) + hash_count * sizeof (struct GNUNET_HashCode))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ hc = (const struct GNUNET_HashCode*) &seen[1];
+ fui_ctx.unique_id = seen->unique_id;
+ fui_ctx.cqr = NULL;
+ GNUNET_CONTAINER_multihashmap_get_multiple (forward_map,
+ &seen->key,
+ &find_by_unique_id,
+ &fui_ctx);
+ if (NULL == (cqr = fui_ctx.cqr))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ /* finally, update 'seen' list */
+ old_count = cqr->seen_replies_count;
+ GNUNET_array_grow (cqr->seen_replies,
+ cqr->seen_replies_count,
+ cqr->seen_replies_count + hash_count);
+ memcpy (&cqr->seen_replies[old_count],
+ hc,
+ sizeof (struct GNUNET_HashCode) * hash_count);
+}
+
+
/**
* Closure for 'remove_by_unique_id'.
*/
* @return GNUNET_YES (we should continue to iterate)
*/
static int
-remove_by_unique_id (void *cls, const GNUNET_HashCode * key, void *value)
+remove_by_unique_id (void *cls, const struct GNUNET_HashCode * key, void *value)
{
const struct RemoveByUniqueIdContext *ctx = cls;
struct ClientQueryRecord *record = value;
if (record->unique_id != ctx->unique_id)
return GNUNET_YES;
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Removing client %p's record for key %s (by unique id)\n",
ctx->client->client_handle, GNUNET_h2s (key));
-#endif
return remove_client_records (ctx->client, key, record);
}
gettext_noop
("# GET STOP requests received from clients"), 1,
GNUNET_NO);
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client %p stopped request for key %s\n",
- client, GNUNET_h2s (&dht_stop_msg->key));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Received GET STOP request for %s from local client %p\n",
+ client, GNUNET_h2s (&dht_stop_msg->key));
ctx.client = find_active_client (client);
ctx.unique_id = dht_stop_msg->unique_id;
GNUNET_CONTAINER_multihashmap_get_multiple (forward_map, &dht_stop_msg->key,
/**
- * Handler for monitor messages
+ * Handler for monitor start messages
*
* @param cls closure for the service
* @param client the client we received this message from
const struct GNUNET_MessageHeader *message)
{
struct ClientMonitorRecord *r;
- const struct GNUNET_DHT_MonitorMessage *msg;
- unsigned int i;
- char *c;
+ const struct GNUNET_DHT_MonitorStartStopMessage *msg;
- msg = (struct GNUNET_DHT_MonitorMessage *) message;
- r = GNUNET_malloc (sizeof(struct ClientMonitorRecord));
+ msg = (struct GNUNET_DHT_MonitorStartStopMessage *) message;
+ r = GNUNET_new (struct ClientMonitorRecord);
r->client = find_active_client(client);
r->type = ntohl(msg->type);
- c = (char *) &msg->key;
- for (i = 0; i < sizeof (GNUNET_HashCode) && c[i] == 0; i++);
- if (sizeof (GNUNET_HashCode) == i)
- r->key = NULL;
+ r->get = ntohs(msg->get);
+ r->get_resp = ntohs(msg->get_resp);
+ r->put = ntohs(msg->put);
+ if (0 == ntohs(msg->filter_key))
+ r->key = NULL;
else
{
- r->key = GNUNET_malloc (sizeof (GNUNET_HashCode));
- memcpy (r->key, &msg->key, sizeof (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);
- // FIXME add remove somewhere
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
-
/**
- * Task run to check for messages that need to be sent to a client.
+ * Handler for monitor stop messages
+ *
+ * @param cls closure for the service
+ * @param client the client we received this message from
+ * @param message the actual message received
*
- * @param client a ClientList, containing the client and any messages to be sent to it
*/
static void
-process_pending_messages (struct ClientList *client);
+handle_dht_local_monitor_stop (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct ClientMonitorRecord *r;
+ const struct GNUNET_DHT_MonitorStartStopMessage *msg;
+ int keys_match;
+
+ msg = (struct GNUNET_DHT_MonitorStartStopMessage *) message;
+ r = monitor_head;
+
+ while (NULL != r)
+ {
+ if (NULL == r->key)
+ keys_match = (0 == ntohs(msg->filter_key));
+ else
+ {
+ keys_match = (0 != ntohs(msg->filter_key)
+ && !memcmp(r->key, &msg->key, sizeof(struct GNUNET_HashCode)));
+ }
+ if (find_active_client(client) == r->client
+ && ntohl(msg->type) == r->type
+ && r->get == msg->get
+ && r->get_resp == msg->get_resp
+ && r->put == msg->put
+ && keys_match
+ )
+ {
+ GNUNET_CONTAINER_DLL_remove (monitor_head, monitor_tail, r);
+ GNUNET_free_non_null (r->key);
+ GNUNET_free (r);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return; /* Delete only ONE entry */
+ }
+ r = r->next;
+ }
+
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
/**
if (buf == NULL)
{
/* client disconnected */
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Client %p disconnected, pending messages will be discarded\n",
client->client_handle);
-#endif
return 0;
}
off = 0;
reply);
memcpy (&cbuf[off], reply->msg, msize);
GNUNET_free (reply);
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Transmitting %u bytes to client %p\n",
msize, client->client_handle);
-#endif
off += msize;
}
process_pending_messages (client);
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Transmitted %u/%u bytes to client %p\n",
(unsigned int) off, (unsigned int) size, client->client_handle);
-#endif
return off;
}
{
if ((client->pending_head == NULL) || (client->transmit_handle != NULL))
{
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Not asking for transmission to %p now: %s\n",
client->client_handle,
client->pending_head ==
NULL ? "no more messages" : "request already pending");
-#endif
return;
}
-#if DEBUG_DHT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Asking for transmission of %u bytes to client %p\n",
ntohs (client->pending_head->msg->size), client->client_handle);
-#endif
client->transmit_handle =
GNUNET_SERVER_notify_transmit_ready (client->client_handle,
ntohs (client->pending_head->
}
-/**
- * Add a PendingMessage to the clients list of messages to be sent
- *
- * @param client the active client to send the message to
- * @param pending_message the actual message to send
- */
-static void
-add_pending_message (struct ClientList *client,
- struct PendingMessage *pending_message)
-{
- GNUNET_CONTAINER_DLL_insert_tail (client->pending_head, client->pending_tail,
- pending_message);
- process_pending_messages (client);
-}
-
-
/**
* Closure for 'forward_reply'
*/
* if the result is mal-formed, GNUNET_NO
*/
static int
-forward_reply (void *cls, const GNUNET_HashCode * key, void *value)
+forward_reply (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ForwardReplyContext *frc = cls;
struct ClientQueryRecord *record = value;
struct GNUNET_DHT_ClientResultMessage *reply;
enum GNUNET_BLOCK_EvaluationResult eval;
int do_free;
- GNUNET_HashCode ch;
+ struct GNUNET_HashCode ch;
unsigned int i;
-
+
+ LOG_TRAFFIC (GNUNET_ERROR_TYPE_DEBUG,
+ "XDHT CLIENT-RESULT %s\n",
+ GNUNET_h2s (key));
if ((record->type != GNUNET_BLOCK_TYPE_ANY) && (record->type != frc->type))
{
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Record type missmatch, not passing request for key %s to local client\n",
- GNUNET_h2s (key));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Record type missmatch, not passing request for key %s to local client\n",
+ GNUNET_h2s (key));
GNUNET_STATISTICS_update (GDS_stats,
gettext_noop
("# Key match, type mismatches in REPLY to CLIENT"),
}
GNUNET_CRYPTO_hash (frc->data, frc->data_size, &ch);
for (i = 0; i < record->seen_replies_count; i++)
- if (0 == memcmp (&record->seen_replies[i], &ch, sizeof (GNUNET_HashCode)))
+ if (0 == memcmp (&record->seen_replies[i], &ch, sizeof (struct GNUNET_HashCode)))
{
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Duplicate reply, not passing request for key %s to local client\n",
- GNUNET_h2s (key));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Duplicate reply, not passing request for key %s to local client\n",
+ GNUNET_h2s (key));
GNUNET_STATISTICS_update (GDS_stats,
gettext_noop
("# Duplicate REPLIES to CLIENT request dropped"),
GNUNET_BLOCK_evaluate (GDS_block_context, record->type, key, NULL, 0,
record->xquery, record->xquery_size, frc->data,
frc->data_size);
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Evaluation result is %d for key %s for local client's query\n",
- (int) eval, GNUNET_h2s (key));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Evaluation result is %d for key %s for local client's query\n",
+ (int) eval, GNUNET_h2s (key));
switch (eval)
{
case GNUNET_BLOCK_EVALUATION_OK_LAST:
case GNUNET_BLOCK_EVALUATION_REQUEST_INVALID:
GNUNET_break (0);
return GNUNET_NO;
+ case GNUNET_BLOCK_EVALUATION_RESULT_IRRELEVANT:
+ return GNUNET_YES;
case GNUNET_BLOCK_EVALUATION_TYPE_NOT_SUPPORTED:
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_("Unsupported block type (%u) in request!\n"), record->type);
memcpy (pm, frc->pm,
sizeof (struct PendingMessage) + ntohs (frc->pm->msg->size));
pm->next = pm->prev = NULL;
+ pm->msg = (struct GNUNET_MessageHeader *) &pm[1];
}
GNUNET_STATISTICS_update (GDS_stats,
gettext_noop ("# RESULTS queued for clients"), 1,
GNUNET_NO);
reply = (struct GNUNET_DHT_ClientResultMessage *) &pm[1];
reply->unique_id = record->unique_id;
-#if DEBUG_DHT
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Queueing reply to query %s for client %p\n", GNUNET_h2s (key),
- record->client->client_handle);
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Queueing reply to query %s for client %p\n",
+ GNUNET_h2s (key),
+ record->client->client_handle);
add_pending_message (record->client, pm);
if (GNUNET_YES == do_free)
remove_client_records (record->client, key, record);
*
* @param expiration when will the reply expire
* @param key the query this reply is for
- * @param get_path_length number of peers in 'get_path'
+ * @param get_path_length number of peers in @a get_path
* @param get_path path the reply took on get
- * @param put_path_length number of peers in 'put_path'
+ * @param put_path_length number of peers in @a put_path
* @param put_path path the reply took on put
* @param type type of the reply
- * @param data_size number of bytes in 'data'
+ * @param data_size number of bytes in @a data
* @param data application payload data
*/
void
GDS_CLIENTS_handle_reply (struct GNUNET_TIME_Absolute expiration,
- const GNUNET_HashCode * key,
+ const struct GNUNET_HashCode *key,
unsigned int get_path_length,
const struct GNUNET_PeerIdentity *get_path,
unsigned int put_path_length,
struct GNUNET_PeerIdentity *paths;
size_t msize;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "reply for key %s\n",
+ GNUNET_h2s (key));
+
if (NULL == GNUNET_CONTAINER_multihashmap_get (forward_map, key))
{
GNUNET_STATISTICS_update (GDS_stats,
_("Could not pass reply to client, message too big!\n"));
return;
}
- pm = (struct PendingMessage *) GNUNET_malloc (msize +
- sizeof (struct PendingMessage));
+ pm = GNUNET_malloc (msize + sizeof (struct PendingMessage));
reply = (struct GNUNET_DHT_ClientResultMessage *) &pm[1];
pm->msg = &reply->header;
reply->header.size = htons ((uint16_t) msize);
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! */
/**
- * Check if some client is monitoring messages of this type and notify
- * him in that case.
+ * Check if some client is monitoring GET messages and notify
+ * them in that case.
+ *
+ * @param options Options, for instance RecordRoute, DemultiplexEverywhere.
+ * @param type The type of data in the request.
+ * @param hop_count Hop count so far.
+ * @param path_length number of entries in path (or 0 if not recorded).
+ * @param path peers on the GET path (or NULL if not recorded).
+ * @param desired_replication_level Desired replication level.
+ * @param key Key of the requested data.
+ */
+void
+GDS_CLIENTS_process_get (uint32_t options,
+ enum GNUNET_BLOCK_Type type,
+ uint32_t hop_count,
+ uint32_t desired_replication_level,
+ unsigned int path_length,
+ const struct GNUNET_PeerIdentity *path,
+ const struct GNUNET_HashCode * key)
+{
+ struct ClientMonitorRecord *m;
+ struct ClientList **cl;
+ unsigned int cl_size;
+
+ cl = NULL;
+ cl_size = 0;
+ for (m = monitor_head; NULL != m; m = m->next)
+ {
+ if ((GNUNET_BLOCK_TYPE_ANY == m->type || m->type == type) &&
+ (NULL == m->key ||
+ memcmp (key, m->key, sizeof(struct GNUNET_HashCode)) == 0))
+ {
+ struct PendingMessage *pm;
+ struct GNUNET_DHT_MonitorGetMessage *mmsg;
+ struct GNUNET_PeerIdentity *msg_path;
+ size_t msize;
+ unsigned int i;
+
+ /* Don't send duplicates */
+ for (i = 0; i < cl_size; i++)
+ if (cl[i] == m->client)
+ break;
+ if (i < cl_size)
+ continue;
+ GNUNET_array_append (cl, cl_size, m->client);
+
+ msize = path_length * sizeof (struct GNUNET_PeerIdentity);
+ msize += sizeof (struct GNUNET_DHT_MonitorGetMessage);
+ msize += sizeof (struct PendingMessage);
+ pm = GNUNET_malloc (msize);
+ mmsg = (struct GNUNET_DHT_MonitorGetMessage *) &pm[1];
+ pm->msg = &mmsg->header;
+ mmsg->header.size = htons (msize - sizeof (struct PendingMessage));
+ mmsg->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_MONITOR_GET);
+ mmsg->options = htonl(options);
+ mmsg->type = htonl(type);
+ mmsg->hop_count = htonl(hop_count);
+ mmsg->desired_replication_level = htonl(desired_replication_level);
+ mmsg->get_path_length = htonl(path_length);
+ memcpy (&mmsg->key, key, sizeof (struct GNUNET_HashCode));
+ msg_path = (struct GNUNET_PeerIdentity *) &mmsg[1];
+ if (path_length > 0)
+ memcpy (msg_path, path,
+ path_length * sizeof (struct GNUNET_PeerIdentity));
+ add_pending_message (m->client, pm);
+ }
+ }
+ GNUNET_free_non_null (cl);
+}
+
+
+/**
+ * Check if some client is monitoring GET RESP messages and notify
+ * them in that case.
*
- * @param mtype Type of the DHT message.
- * @param exp When will this value expire.
- * @param key Key of the result/request.
- * @param get_path Peers on reply path (or NULL if not recorded).
+ * @param type The type of data in the result.
+ * @param get_path Peers on GET path (or NULL if not recorded).
* @param get_path_length number of entries in get_path.
* @param put_path peers on the PUT path (or NULL if not recorded).
* @param put_path_length number of entries in get_path.
- * @param desired_replication_level Desired replication level.
- * @param type Type of the result/request.
+ * @param exp Expiration time of the data.
+ * @param key Key of the data.
* @param data Pointer to the result data.
* @param size Number of bytes in data.
*/
void
-GDS_CLIENTS_process_monitor (uint16_t mtype,
- const struct GNUNET_TIME_Absolute exp,
- const GNUNET_HashCode *key,
- uint32_t putl,
- const struct GNUNET_PeerIdentity *put_path,
- uint32_t getl,
- const struct GNUNET_PeerIdentity *get_path,
- uint32_t replevel,
- enum GNUNET_BLOCK_Type type,
- const struct GNUNET_MessageHeader *data,
- uint16_t size)
+GDS_CLIENTS_process_get_resp (enum GNUNET_BLOCK_Type type,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
+ struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const void *data,
+ size_t size)
{
struct ClientMonitorRecord *m;
struct ClientList **cl;
{
if ((GNUNET_BLOCK_TYPE_ANY == m->type || m->type == type) &&
(NULL == m->key ||
- memcmp (key, m->key, sizeof(GNUNET_HashCode)) == 0))
+ memcmp (key, m->key, sizeof(struct GNUNET_HashCode)) == 0))
{
struct PendingMessage *pm;
- struct GNUNET_DHT_MonitorMessage *mmsg;
+ struct GNUNET_DHT_MonitorGetRespMessage *mmsg;
struct GNUNET_PeerIdentity *path;
size_t msize;
unsigned int i;
GNUNET_array_append (cl, cl_size, m->client);
msize = size;
- msize += (getl + putl) * sizeof (struct GNUNET_PeerIdentity);
- msize += sizeof (struct GNUNET_DHT_MonitorMessage);
+ msize += (get_path_length + put_path_length)
+ * sizeof (struct GNUNET_PeerIdentity);
+ msize += sizeof (struct GNUNET_DHT_MonitorGetRespMessage);
msize += sizeof (struct PendingMessage);
- pm = (struct PendingMessage *) GNUNET_malloc (msize);
- mmsg = (struct GNUNET_DHT_MonitorMessage *) &pm[1];
+ pm = GNUNET_malloc (msize);
+ mmsg = (struct GNUNET_DHT_MonitorGetRespMessage *) &pm[1];
pm->msg = (struct GNUNET_MessageHeader *) mmsg;
mmsg->header.size = htons (msize - sizeof (struct PendingMessage));
- mmsg->header.type = htons (mtype);
- mmsg->expiration = GNUNET_TIME_absolute_hton(exp);
+ mmsg->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_MONITOR_GET_RESP);
+ mmsg->type = htonl(type);
+ mmsg->put_path_length = htonl(put_path_length);
+ mmsg->get_path_length = htonl(get_path_length);
path = (struct GNUNET_PeerIdentity *) &mmsg[1];
- memcpy (path, put_path, putl * sizeof (struct GNUNET_PeerIdentity));
- path = &path[putl];
- memcpy (path, get_path, getl * sizeof (struct GNUNET_PeerIdentity));
- memcpy (&path[getl], data, size);
+ if (put_path_length > 0)
+ {
+ memcpy (path, put_path,
+ put_path_length * sizeof (struct GNUNET_PeerIdentity));
+ path = &path[put_path_length];
+ }
+ if (get_path_length > 0)
+ memcpy (path, get_path,
+ get_path_length * sizeof (struct GNUNET_PeerIdentity));
+ mmsg->expiration_time = GNUNET_TIME_absolute_hton(exp);
+ memcpy (&mmsg->key, key, sizeof (struct GNUNET_HashCode));
+ if (size > 0)
+ memcpy (&path[get_path_length], data, size);
+ add_pending_message (m->client, pm);
+ }
+ }
+ GNUNET_free_non_null (cl);
+}
+
+
+/**
+ * Check if some client is monitoring PUT messages and notify
+ * them in that case.
+ *
+ * @param options Options, for instance RecordRoute, DemultiplexEverywhere.
+ * @param type The type of data in the request.
+ * @param hop_count Hop count so far.
+ * @param path_length number of entries in path (or 0 if not recorded).
+ * @param path peers on the PUT path (or NULL if not recorded).
+ * @param desired_replication_level Desired replication level.
+ * @param exp Expiration time of the data.
+ * @param key Key under which data is to be stored.
+ * @param data Pointer to the data carried.
+ * @param size Number of bytes in data.
+ */
+void
+GDS_CLIENTS_process_put (uint32_t options,
+ enum GNUNET_BLOCK_Type type,
+ uint32_t hop_count,
+ uint32_t desired_replication_level,
+ unsigned int path_length,
+ const struct GNUNET_PeerIdentity *path,
+ struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const void *data,
+ size_t size)
+{
+ struct ClientMonitorRecord *m;
+ struct ClientList **cl;
+ unsigned int cl_size;
+
+ cl = NULL;
+ cl_size = 0;
+ for (m = monitor_head; NULL != m; m = m->next)
+ {
+ if ((GNUNET_BLOCK_TYPE_ANY == m->type || m->type == type) &&
+ (NULL == m->key ||
+ memcmp (key, m->key, sizeof(struct GNUNET_HashCode)) == 0))
+ {
+ struct PendingMessage *pm;
+ struct GNUNET_DHT_MonitorPutMessage *mmsg;
+ struct GNUNET_PeerIdentity *msg_path;
+ size_t msize;
+ unsigned int i;
+
+ /* Don't send duplicates */
+ for (i = 0; i < cl_size; i++)
+ if (cl[i] == m->client)
+ break;
+ if (i < cl_size)
+ continue;
+ GNUNET_array_append (cl, cl_size, m->client);
+
+ msize = size;
+ msize += path_length * sizeof (struct GNUNET_PeerIdentity);
+ msize += sizeof (struct GNUNET_DHT_MonitorPutMessage);
+ msize += sizeof (struct PendingMessage);
+ pm = GNUNET_malloc (msize);
+ mmsg = (struct GNUNET_DHT_MonitorPutMessage *) &pm[1];
+ pm->msg = (struct GNUNET_MessageHeader *) mmsg;
+ mmsg->header.size = htons (msize - sizeof (struct PendingMessage));
+ mmsg->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_MONITOR_PUT);
+ mmsg->options = htonl(options);
+ mmsg->type = htonl(type);
+ mmsg->hop_count = htonl(hop_count);
+ mmsg->desired_replication_level = htonl(desired_replication_level);
+ mmsg->put_path_length = htonl(path_length);
+ msg_path = (struct GNUNET_PeerIdentity *) &mmsg[1];
+ if (path_length > 0)
+ {
+ memcpy (msg_path, path,
+ path_length * sizeof (struct GNUNET_PeerIdentity));
+ }
+ mmsg->expiration_time = GNUNET_TIME_absolute_hton(exp);
+ memcpy (&mmsg->key, key, sizeof (struct GNUNET_HashCode));
+ if (size > 0)
+ memcpy (&msg_path[path_length], data, size);
add_pending_message (m->client, pm);
}
}
GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET_STOP,
sizeof (struct GNUNET_DHT_ClientGetStopMessage)},
{&handle_dht_local_monitor, NULL,
- GNUNET_MESSAGE_TYPE_DHT_MONITOR_GET,
- sizeof (struct GNUNET_DHT_MonitorMessage)},
+ GNUNET_MESSAGE_TYPE_DHT_MONITOR_START,
+ sizeof (struct GNUNET_DHT_MonitorStartStopMessage)},
+ {&handle_dht_local_monitor_stop, NULL,
+ GNUNET_MESSAGE_TYPE_DHT_MONITOR_STOP,
+ sizeof (struct GNUNET_DHT_MonitorStartStopMessage)},
+ {&handle_dht_local_get_result_seen, NULL,
+ GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET_RESULTS_KNOWN, 0},
{NULL, NULL, 0, 0}
};
- forward_map = GNUNET_CONTAINER_multihashmap_create (1024);
+ forward_map = GNUNET_CONTAINER_multihashmap_create (1024, GNUNET_NO);
retry_heap = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
GNUNET_SERVER_add_handlers (server, plugin_handlers);
GNUNET_SERVER_disconnect_notify (server, &handle_client_disconnect, NULL);
GNUNET_SCHEDULER_cancel (retry_task);
retry_task = GNUNET_SCHEDULER_NO_TASK;
}
- GNUNET_assert (0 == GNUNET_CONTAINER_heap_get_size (retry_heap));
- GNUNET_CONTAINER_heap_destroy (retry_heap);
- retry_heap = NULL;
- GNUNET_assert (0 == GNUNET_CONTAINER_multihashmap_size (forward_map));
- GNUNET_CONTAINER_multihashmap_destroy (forward_map);
- forward_map = NULL;
+ if (NULL != retry_heap)
+ {
+ GNUNET_assert (0 == GNUNET_CONTAINER_heap_get_size (retry_heap));
+ GNUNET_CONTAINER_heap_destroy (retry_heap);
+ retry_heap = NULL;
+ }
+ if (NULL != forward_map)
+ {
+ GNUNET_assert (0 == GNUNET_CONTAINER_multihashmap_size (forward_map));
+ GNUNET_CONTAINER_multihashmap_destroy (forward_map);
+ forward_map = NULL;
+ }
}
/* end of gnunet-service-dht_clients.c */
projects / oweals / gnunet.git / blobdiff