/*
This file is part of GNUnet.
- (C) 2011 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2011, 2016 GNUnet e.V.
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
-
/**
* @file fs/gnunet-service-fs_cp.c
* @brief API to handle 'connected peers'
* @author Christian Grothoff
*/
#include "platform.h"
+#include "gnunet_util_lib.h"
#include "gnunet_load_lib.h"
-#include "gnunet_ats_service.h"
#include "gnunet-service-fs.h"
#include "gnunet-service-fs_cp.h"
#include "gnunet-service-fs_pe.h"
#include "gnunet-service-fs_pr.h"
#include "gnunet-service-fs_push.h"
+#include "gnunet_peerstore_service.h"
+
+
+/**
+ * Ratio for moving average delay calculation. The previous
+ * average goes in with a factor of (n-1) into the calculation.
+ * Must be > 0.
+ */
+#define RUNAVG_DELAY_N 16
/**
- * How often do we flush trust values to disk?
+ * How often do we flush respect values to disk?
*/
-#define TRUST_FLUSH_FREQ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
+#define RESPECT_FLUSH_FREQ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
/**
* After how long do we discard a reply?
*/
#define REPLY_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 2)
+/**
+ * Collect an instane number of statistics? May cause excessive IPC.
+ */
+#define INSANE_STATISTICS GNUNET_NO
+
/**
* Handle to cancel a transmission request.
*/
struct GSF_PeerTransmitHandle *prev;
- /**
- * Handle for an active request for transmission to this
- * peer, or NULL (if core queue was full).
- */
- struct GNUNET_CORE_TransmitHandle *cth;
-
/**
* Time when this transmission request was issued.
*/
struct GNUNET_TIME_Absolute transmission_request_start_time;
/**
- * Timeout for this request.
+ * Envelope with the actual message.
*/
- struct GNUNET_TIME_Absolute timeout;
-
- /**
- * Task called on timeout, or 0 for none.
- */
- GNUNET_SCHEDULER_TaskIdentifier timeout_task;
-
- /**
- * Function to call to get the actual message.
- */
- GSF_GetMessageCallback gmc;
+ struct GNUNET_MQ_Envelope *env;
/**
* Peer this request targets.
struct GSF_ConnectedPeer *cp;
/**
- * Closure for 'gmc'.
- */
- void *gmc_cls;
-
- /**
- * Size of the message to be transmitted.
- */
- size_t size;
-
- /**
- * Set to 1 if we're currently in the process of calling
- * 'GNUNET_CORE_notify_transmit_ready' (so while cth is
- * NULL, we should not call notify_transmit_ready for this
- * handle right now).
- */
- unsigned int cth_in_progress;
-
- /**
- * GNUNET_YES if this is a query, GNUNET_NO for content.
+ * #GNUNET_YES if this is a query, #GNUNET_NO for content.
*/
int is_query;
struct GSF_ConnectedPeer *cp;
/**
- * The PUT that was delayed.
+ * Envelope of the message that was delayed.
*/
- struct PutMessage *pm;
+ struct GNUNET_MQ_Envelope *env;
/**
* Task for the delay.
*/
- GNUNET_SCHEDULER_TaskIdentifier delay_task;
+ struct GNUNET_SCHEDULER_Task *delay_task;
/**
* Size of the message.
{
/**
- * Handle to generic request.
+ * Handle to generic request (generic: from peer or local client).
*/
struct GSF_PendingRequest *pr;
/**
- * Handle to specific peer.
+ * Which specific peer issued this request?
*/
struct GSF_ConnectedPeer *cp;
/**
* Task for asynchronous stopping of this request.
*/
- GNUNET_SCHEDULER_TaskIdentifier kill_task;
+ struct GNUNET_SCHEDULER_Task *kill_task;
};
/**
* Task scheduled to revive migration to this peer.
*/
- GNUNET_SCHEDULER_TaskIdentifier mig_revive_task;
+ struct GNUNET_SCHEDULER_Task *mig_revive_task;
/**
* Messages (replies, queries, content migration) we would like to
*/
struct GSF_DelayedHandle *delayed_tail;
- /**
- * Migration stop message in our queue, or NULL if we have none pending.
- */
- struct GSF_PeerTransmitHandle *migration_pth;
-
/**
* Context of our GNUNET_ATS_reserve_bandwidth call (or NULL).
*/
/**
* Task scheduled if we need to retry bandwidth reservation later.
*/
- GNUNET_SCHEDULER_TaskIdentifier rc_delay_task;
+ struct GNUNET_SCHEDULER_Task *rc_delay_task;
/**
- * Active requests from this neighbour, map of query to 'struct PeerRequest'.
+ * Active requests from this neighbour, map of query to `struct PeerRequest`.
*/
struct GNUNET_CONTAINER_MultiHashMap *request_map;
+ /**
+ * Handle for an active request for transmission to this
+ * peer.
+ */
+ struct GNUNET_MQ_Handle *mq;
+
/**
* Increase in traffic preference still to be submitted
* to the core service for this peer.
uint64_t inc_preference;
/**
- * Trust rating for this peer on disk.
+ * Number of entries in @e delayed_head DLL.
*/
- uint32_t disk_trust;
+ unsigned int delay_queue_size;
/**
- * Which offset in "last_p2p_replies" will be updated next?
+ * Respect rating for this peer on disk.
+ */
+ uint32_t disk_respect;
+
+ /**
+ * Which offset in @e last_p2p_replies will be updated next?
* (we go round-robin).
*/
unsigned int last_p2p_replies_woff;
/**
- * Which offset in "last_client_replies" will be updated next?
+ * Which offset in @e last_client_replies will be updated next?
* (we go round-robin).
*/
unsigned int last_client_replies_woff;
/**
- * Current offset into 'last_request_times' ring buffer.
+ * Current offset into @e last_request_times ring buffer.
*/
unsigned int last_request_times_off;
/**
- * GNUNET_YES if we did successfully reserve 32k bandwidth,
- * GNUNET_NO if not.
+ * #GNUNET_YES if we did successfully reserve 32k bandwidth,
+ * #GNUNET_NO if not.
*/
int did_reserve;
-};
-
+ /**
+ * Handle to the PEERSTORE iterate request for peer respect value
+ */
+ struct GNUNET_PEERSTORE_IterateContext *respect_iterate_req;
-/**
- * Map from peer identities to 'struct GSF_ConnectPeer' entries.
- */
-static struct GNUNET_CONTAINER_MultiHashMap *cp_map;
+};
-/**
- * Where do we store trust information?
- */
-static char *trustDirectory;
/**
- * Handle to ATS service.
+ * Map from peer identities to `struct GSF_ConnectPeer` entries.
*/
-static struct GNUNET_ATS_PerformanceHandle *ats;
+static struct GNUNET_CONTAINER_MultiPeerMap *cp_map;
/**
- * Get the filename under which we would store the GNUNET_HELLO_Message
- * for the given host and protocol.
- * @return filename of the form DIRECTORY/HOSTID
+ * Handle to peerstore service.
*/
-static char *
-get_trust_filename (const struct GNUNET_PeerIdentity *id)
-{
- struct GNUNET_CRYPTO_HashAsciiEncoded fil;
- char *fn;
-
- GNUNET_CRYPTO_hash_to_enc (&id->hashPubKey, &fil);
- GNUNET_asprintf (&fn, "%s%s%s", trustDirectory, DIR_SEPARATOR_STR, &fil);
- return fn;
-}
-
+static struct GNUNET_PEERSTORE_Handle *peerstore;
/**
- * Find latency information in 'atsi'.
- *
- * @param atsi performance data
- * @return connection latency
+ * Task used to flush respect values to disk.
*/
-static struct GNUNET_TIME_Relative
-get_latency (const struct GNUNET_ATS_Information *atsi)
-{
- if (atsi == NULL)
- return GNUNET_TIME_UNIT_SECONDS;
- while ((ntohl (atsi->type) != GNUNET_ATS_ARRAY_TERMINATOR) &&
- (ntohl (atsi->type) != GNUNET_ATS_QUALITY_NET_DELAY))
- atsi++;
- if (ntohl (atsi->type) == GNUNET_ATS_ARRAY_TERMINATOR)
- {
- /* We sometime have no latency data, i.e. if the address came from
- peerinfo and we never had a chance to play transport-level
- PING/PONG yet. Assume 1s in that case. */
- return GNUNET_TIME_UNIT_SECONDS;
- }
- return GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
- ntohl (atsi->value));
-}
+static struct GNUNET_SCHEDULER_Task *fr_task;
/**
- * Update the performance information kept for the given peer.
+ * Update the latency information kept for the given peer.
*
- * @param cp peer record to update
- * @param atsi transport performance data
+ * @param id peer record to update
+ * @param latency current latency value
*/
-static void
-update_atsi (struct GSF_ConnectedPeer *cp,
- const struct GNUNET_ATS_Information *atsi)
+void
+GSF_update_peer_latency_ (const struct GNUNET_PeerIdentity *id,
+ struct GNUNET_TIME_Relative latency)
{
- struct GNUNET_TIME_Relative latency;
+ struct GSF_ConnectedPeer *cp;
- latency = get_latency (atsi);
- GNUNET_LOAD_value_set_decline (cp->ppd.transmission_delay, latency);
- /* LATER: merge atsi into cp's performance data (if we ever care...) */
+ cp = GSF_peer_get_ (id);
+ if (NULL == cp)
+ return; /* we're not yet connected at the core level, ignore */
+ GNUNET_LOAD_value_set_decline (cp->ppd.transmission_delay,
+ latency);
}
/**
* Core is ready to transmit to a peer, get the message.
*
- * @param cls the 'struct GSF_PeerTransmitHandle' of the message
- * @param size number of bytes core is willing to take
- * @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @param cp which peer to send a message to
*/
-static size_t
-peer_transmit_ready_cb (void *cls, size_t size, void *buf);
+static void
+peer_transmit (struct GSF_ConnectedPeer *cp);
/**
* Function called by core upon success or failure of our bandwidth reservation request.
*
- * @param cls the 'struct GSF_ConnectedPeer' of the peer for which we made the request
+ * @param cls the `struct GSF_ConnectedPeer` of the peer for which we made the request
* @param peer identifies the peer
* @param amount set to the amount that was actually reserved or unreserved;
* either the full requested amount or zero (no partial reservations)
* long should the client wait until re-trying?
*/
static void
-ats_reserve_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
- int32_t amount, struct GNUNET_TIME_Relative res_delay);
+ats_reserve_callback (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ int32_t amount,
+ struct GNUNET_TIME_Relative res_delay);
/**
struct GSF_ConnectedPeer *cp;
struct GNUNET_PeerIdentity target;
- if ((NULL != pth->cth) || (0 != pth->cth_in_progress))
- return; /* already done */
cp = pth->cp;
GNUNET_assert (0 != cp->ppd.pid);
GNUNET_PEER_resolve (cp->ppd.pid, &target);
if (0 != cp->inc_preference)
{
- GNUNET_ATS_change_preference (ats,
- &target,
- GNUNET_ATS_PREFERENCE_BANDWIDTH,
- (double) cp->inc_preference,
- GNUNET_ATS_PREFERENCE_END);
+ GNUNET_ATS_performance_change_preference (GSF_ats,
+ &target,
+ GNUNET_ATS_PREFERENCE_BANDWIDTH,
+ (double) cp->inc_preference,
+ GNUNET_ATS_PREFERENCE_END);
cp->inc_preference = 0;
}
- if ((GNUNET_YES == pth->is_query) && (GNUNET_YES != pth->was_reserved))
+ if ( (GNUNET_YES == pth->is_query) &&
+ (GNUNET_YES != pth->was_reserved) )
{
/* query, need reservation */
if (GNUNET_YES != cp->did_reserve)
cp->did_reserve = GNUNET_NO;
/* reservation already done! */
pth->was_reserved = GNUNET_YES;
- cp->rc =
- GNUNET_ATS_reserve_bandwidth (ats, &target,
- DBLOCK_SIZE,
- &ats_reserve_callback, cp);
+ cp->rc = GNUNET_ATS_reserve_bandwidth (GSF_ats,
+ &target,
+ DBLOCK_SIZE,
+ &ats_reserve_callback,
+ cp);
+ return;
}
- GNUNET_assert (pth->cth == NULL);
- pth->cth_in_progress++;
- pth->cth =
- GNUNET_CORE_notify_transmit_ready (GSF_core, GNUNET_YES, pth->priority,
- GNUNET_TIME_absolute_get_remaining
- (pth->timeout), &target, pth->size,
- &peer_transmit_ready_cb, pth);
- GNUNET_assert (0 < pth->cth_in_progress--);
+ peer_transmit (cp);
}
/**
* Core is ready to transmit to a peer, get the message.
*
- * @param cls the 'struct GSF_PeerTransmitHandle' of the message
- * @param size number of bytes core is willing to take
- * @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @param cp which peer to send a message to
*/
-static size_t
-peer_transmit_ready_cb (void *cls, size_t size, void *buf)
+static void
+peer_transmit (struct GSF_ConnectedPeer *cp)
{
- struct GSF_PeerTransmitHandle *pth = cls;
+ struct GSF_PeerTransmitHandle *pth = cp->pth_head;
struct GSF_PeerTransmitHandle *pos;
- struct GSF_ConnectedPeer *cp;
- size_t ret;
- GNUNET_assert ((NULL == buf) || (pth->size <= size));
- pth->cth = NULL;
- if (pth->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (pth->timeout_task);
- pth->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- cp = pth->cp;
- GNUNET_CONTAINER_DLL_remove (cp->pth_head, cp->pth_tail, pth);
+ if (NULL == pth)
+ return;
+ GNUNET_CONTAINER_DLL_remove (cp->pth_head,
+ cp->pth_tail,
+ pth);
if (GNUNET_YES == pth->is_query)
{
cp->ppd.last_request_times[(cp->last_request_times_off++) %
MAX_QUEUE_PER_PEER] =
- GNUNET_TIME_absolute_get ();
+ GNUNET_TIME_absolute_get ();
GNUNET_assert (0 < cp->ppd.pending_queries--);
}
else if (GNUNET_NO == pth->is_query)
}
GNUNET_LOAD_update (cp->ppd.transmission_delay,
GNUNET_TIME_absolute_get_duration
- (pth->transmission_request_start_time).rel_value);
- ret = pth->gmc (pth->gmc_cls, size, buf);
- GNUNET_assert (NULL == pth->cth);
- for (pos = cp->pth_head; pos != NULL; pos = pos->next)
+ (pth->transmission_request_start_time).rel_value_us);
+ GNUNET_MQ_send (cp->mq,
+ pth->env);
+ GNUNET_free (pth);
+ if (NULL != (pos = cp->pth_head))
{
GNUNET_assert (pos != pth);
schedule_transmission (pos);
}
- GNUNET_assert (pth->cth == NULL);
- GNUNET_assert (pth->cth_in_progress == 0);
- GNUNET_free (pth);
- return ret;
}
/**
* (re)try to reserve bandwidth from the given peer.
*
- * @param cls the 'struct GSF_ConnectedPeer' to reserve from
- * @param tc scheduler context
+ * @param cls the `struct GSF_ConnectedPeer` to reserve from
*/
static void
-retry_reservation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+retry_reservation (void *cls)
{
struct GSF_ConnectedPeer *cp = cls;
struct GNUNET_PeerIdentity target;
GNUNET_PEER_resolve (cp->ppd.pid, &target);
- cp->rc_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ cp->rc_delay_task = NULL;
cp->rc =
- GNUNET_ATS_reserve_bandwidth (ats, &target,
- DBLOCK_SIZE,
- &ats_reserve_callback, cp);
+ GNUNET_ATS_reserve_bandwidth (GSF_ats,
+ &target,
+ DBLOCK_SIZE,
+ &ats_reserve_callback, cp);
}
/**
* Function called by core upon success or failure of our bandwidth reservation request.
*
- * @param cls the 'struct GSF_ConnectedPeer' of the peer for which we made the request
+ * @param cls the `struct GSF_ConnectedPeer` of the peer for which we made the request
* @param peer identifies the peer
* @param amount set to the amount that was actually reserved or unreserved;
* either the full requested amount or zero (no partial reservations)
* long should the client wait until re-trying?
*/
static void
-ats_reserve_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
- int32_t amount, struct GNUNET_TIME_Relative res_delay)
+ats_reserve_callback (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ int32_t amount,
+ struct GNUNET_TIME_Relative res_delay)
{
struct GSF_ConnectedPeer *cp = cls;
struct GSF_PeerTransmitHandle *pth;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Reserved %d bytes / need to wait %llu ms for reservation\n",
- (int) amount,
- (unsigned long long) res_delay.rel_value);
+ "Reserved %d bytes / need to wait %s for reservation\n",
+ (int) amount,
+ GNUNET_STRINGS_relative_time_to_string (res_delay, GNUNET_YES));
cp->rc = NULL;
if (0 == amount)
{
cp->rc_delay_task =
- GNUNET_SCHEDULER_add_delayed (res_delay, &retry_reservation, cp);
+ GNUNET_SCHEDULER_add_delayed (res_delay,
+ &retry_reservation,
+ cp);
return;
}
cp->did_reserve = GNUNET_YES;
pth = cp->pth_head;
- if ((NULL != pth) && (NULL == pth->cth))
+ if (NULL != pth)
{
/* reservation success, try transmission now! */
- pth->cth_in_progress++;
- pth->cth =
- GNUNET_CORE_notify_transmit_ready (GSF_core, GNUNET_YES, pth->priority,
- GNUNET_TIME_absolute_get_remaining
- (pth->timeout), peer, pth->size,
- &peer_transmit_ready_cb, pth);
- GNUNET_assert (0 < pth->cth_in_progress--);
+ peer_transmit (cp);
}
}
+/**
+ * Function called by PEERSTORE with peer respect record
+ *
+ * @param cls handle to connected peer entry
+ * @param record peerstore record information
+ * @param emsg error message, or NULL if no errors
+ */
+static void
+peer_respect_cb (void *cls,
+ const struct GNUNET_PEERSTORE_Record *record,
+ const char *emsg)
+{
+ struct GSF_ConnectedPeer *cp = cls;
+
+ GNUNET_assert (NULL != cp->respect_iterate_req);
+ if ( (NULL != record) &&
+ (sizeof (cp->disk_respect) == record->value_size))
+ {
+ cp->disk_respect = *((uint32_t *)record->value);
+ cp->ppd.respect += *((uint32_t *)record->value);
+ }
+ GSF_push_start_ (cp);
+ if (NULL != record)
+ GNUNET_PEERSTORE_iterate_cancel (cp->respect_iterate_req);
+ cp->respect_iterate_req = NULL;
+}
+
+
+/**
+ * Function called for each pending request whenever a new
+ * peer connects, giving us a chance to decide about submitting
+ * the existing request to the new peer.
+ *
+ * @param cls the `struct GSF_ConnectedPeer` of the new peer
+ * @param key query for the request
+ * @param pr handle to the pending request
+ * @return #GNUNET_YES to continue to iterate
+ */
+static int
+consider_peer_for_forwarding (void *cls,
+ const struct GNUNET_HashCode *key,
+ struct GSF_PendingRequest *pr)
+{
+ struct GSF_ConnectedPeer *cp = cls;
+ struct GNUNET_PeerIdentity pid;
+
+ if (GNUNET_YES !=
+ GSF_pending_request_test_active_ (pr))
+ return GNUNET_YES; /* request is not actually active, skip! */
+ GSF_connected_peer_get_identity_ (cp, &pid);
+ if (GNUNET_YES !=
+ GSF_pending_request_test_target_ (pr, &pid))
+ {
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# Loopback routes suppressed"),
+ 1,
+ GNUNET_NO);
+ return GNUNET_YES;
+ }
+ GSF_plan_add_ (cp, pr);
+ return GNUNET_YES;
+}
+
+
/**
* A peer connected to us. Setup the connected peer
* records.
*
+ * @param cls NULL
* @param peer identity of peer that connected
- * @param atsi performance data for the connection
- * @return handle to connected peer entry
+ * @param mq message queue for talking to @a peer
+ * @return our internal handle for the peer
*/
-struct GSF_ConnectedPeer *
-GSF_peer_connect_handler_ (const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_ATS_Information *atsi)
+void *
+GSF_peer_connect_handler (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ struct GNUNET_MQ_Handle *mq)
{
struct GSF_ConnectedPeer *cp;
- char *fn;
- uint32_t trust;
+ if (0 ==
+ GNUNET_memcmp (&GSF_my_id,
+ peer))
+ return NULL;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connected to peer %s\n",
- GNUNET_i2s (peer));
- cp = GNUNET_malloc (sizeof (struct GSF_ConnectedPeer));
+ "Connected to peer %s\n",
+ GNUNET_i2s (peer));
+ cp = GNUNET_new (struct GSF_ConnectedPeer);
cp->ppd.pid = GNUNET_PEER_intern (peer);
+ cp->ppd.peer = peer;
+ cp->mq = mq;
cp->ppd.transmission_delay = GNUNET_LOAD_value_init (GNUNET_TIME_UNIT_ZERO);
cp->rc =
- GNUNET_ATS_reserve_bandwidth (ats, peer,
- DBLOCK_SIZE,
- &ats_reserve_callback, cp);
- fn = get_trust_filename (peer);
- if ((GNUNET_DISK_file_test (fn) == GNUNET_YES) &&
- (sizeof (trust) == GNUNET_DISK_fn_read (fn, &trust, sizeof (trust))))
- cp->disk_trust = cp->ppd.trust = ntohl (trust);
- GNUNET_free (fn);
- cp->request_map = GNUNET_CONTAINER_multihashmap_create (128);
+ GNUNET_ATS_reserve_bandwidth (GSF_ats,
+ peer,
+ DBLOCK_SIZE,
+ &ats_reserve_callback, cp);
+ cp->request_map = GNUNET_CONTAINER_multihashmap_create (128,
+ GNUNET_YES);
GNUNET_break (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (cp_map, &peer->hashPubKey,
+ GNUNET_CONTAINER_multipeermap_put (cp_map,
+ GSF_connected_peer_get_identity2_ (cp),
cp,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
GNUNET_STATISTICS_set (GSF_stats,
- gettext_noop
- ("# connected peers"),
- GNUNET_CONTAINER_multihashmap_size (cp_map),
- GNUNET_NO);
- update_atsi (cp, atsi);
- GSF_push_start_ (cp);
+ gettext_noop ("# peers connected"),
+ GNUNET_CONTAINER_multipeermap_size (cp_map),
+ GNUNET_NO);
+ cp->respect_iterate_req
+ = GNUNET_PEERSTORE_iterate (peerstore,
+ "fs",
+ peer,
+ "respect",
+ &peer_respect_cb,
+ cp);
+ GSF_iterate_pending_requests_ (&consider_peer_for_forwarding,
+ cp);
return cp;
}
* It may be time to re-start migrating content to this
* peer. Check, and if so, restart migration.
*
- * @param cls the 'struct GSF_ConnectedPeer'
- * @param tc scheduler context
+ * @param cls the `struct GSF_ConnectedPeer`
*/
static void
-revive_migration (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+revive_migration (void *cls)
{
struct GSF_ConnectedPeer *cp = cls;
struct GNUNET_TIME_Relative bt;
- cp->mig_revive_task = GNUNET_SCHEDULER_NO_TASK;
+ cp->mig_revive_task = NULL;
bt = GNUNET_TIME_absolute_get_remaining (cp->ppd.migration_blocked_until);
- if (0 != bt.rel_value)
+ if (0 != bt.rel_value_us)
{
/* still time left... */
cp->mig_revive_task =
{
if (NULL == cp_map)
return NULL;
- return GNUNET_CONTAINER_multihashmap_get (cp_map, &peer->hashPubKey);
+ return GNUNET_CONTAINER_multipeermap_get (cp_map, peer);
}
/**
- * Handle P2P "MIGRATION_STOP" message.
+ * Handle P2P #GNUNET_MESSAGE_TYPE_FS_MIGRATION_STOP message.
*
- * @param cls closure, always NULL
- * @param other the other peer involved (sender or receiver, NULL
- * for loopback messages where we are both sender and receiver)
- * @param message the actual message
- * @param atsi performance information
- * @return GNUNET_OK to keep the connection open,
- * GNUNET_SYSERR to close it (signal serious error)
+ * @param cls closure, the `struct GSF_ConnectedPeer`
+ * @param msm the actual message
*/
-int
-GSF_handle_p2p_migration_stop_ (void *cls,
- const struct GNUNET_PeerIdentity *other,
- const struct GNUNET_MessageHeader *message,
- const struct GNUNET_ATS_Information
- *atsi)
+void
+handle_p2p_migration_stop (void *cls,
+ const struct MigrationStopMessage *msm)
{
- struct GSF_ConnectedPeer *cp;
- const struct MigrationStopMessage *msm;
+ struct GSF_ConnectedPeer *cp = cls;
struct GNUNET_TIME_Relative bt;
- msm = (const struct MigrationStopMessage *) message;
- cp = GSF_peer_get_ (other);
- if (cp == NULL)
- {
- GNUNET_break (0);
- return GNUNET_OK;
- }
GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# migration stop messages received"),
- 1, GNUNET_NO);
+ gettext_noop ("# migration stop messages received"),
+ 1, GNUNET_NO);
bt = GNUNET_TIME_relative_ntoh (msm->duration);
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("Migration of content to peer `%s' blocked for %llu ms\n"),
- GNUNET_i2s (other), (unsigned long long) bt.rel_value);
+ _("Migration of content to peer `%s' blocked for %s\n"),
+ GNUNET_i2s (cp->ppd.peer),
+ GNUNET_STRINGS_relative_time_to_string (bt, GNUNET_YES));
cp->ppd.migration_blocked_until = GNUNET_TIME_relative_to_absolute (bt);
- if (cp->mig_revive_task == GNUNET_SCHEDULER_NO_TASK)
+ if ( (NULL == cp->mig_revive_task) &&
+ (NULL == cp->respect_iterate_req) )
{
GSF_push_stop_ (cp);
cp->mig_revive_task =
- GNUNET_SCHEDULER_add_delayed (bt, &revive_migration, cp);
+ GNUNET_SCHEDULER_add_delayed (bt,
+ &revive_migration, cp);
}
- update_atsi (cp, atsi);
- return GNUNET_OK;
}
/**
- * Copy reply and free put message.
+ * Free resources associated with the given peer request.
*
- * @param cls the 'struct PutMessage'
- * @param buf_size number of bytes available in buf
- * @param buf where to copy the message, NULL on error (peer disconnect)
- * @return number of bytes copied to 'buf', can be 0 (without indicating an error)
+ * @param peerreq request to free
*/
-static size_t
-copy_reply (void *cls, size_t buf_size, void *buf)
+static void
+free_pending_request (struct PeerRequest *peerreq)
{
- struct PutMessage *pm = cls;
- size_t size;
+ struct GSF_ConnectedPeer *cp = peerreq->cp;
+ struct GSF_PendingRequestData *prd;
- if (buf != NULL)
- {
- GNUNET_assert (buf_size >= ntohs (pm->header.size));
- size = ntohs (pm->header.size);
- memcpy (buf, pm, size);
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# replies transmitted to other peers"), 1,
- GNUNET_NO);
- }
- else
+ prd = GSF_pending_request_get_data_ (peerreq->pr);
+ if (NULL != peerreq->kill_task)
{
- size = 0;
- GNUNET_STATISTICS_update (GSF_stats, gettext_noop ("# replies dropped"), 1,
- GNUNET_NO);
+ GNUNET_SCHEDULER_cancel (peerreq->kill_task);
+ peerreq->kill_task = NULL;
}
- GNUNET_free (pm);
- return size;
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# P2P searches active"),
+ -1,
+ GNUNET_NO);
+ GNUNET_break (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (cp->request_map,
+ &prd->query,
+ peerreq));
+ GNUNET_free (peerreq);
}
*
* @param cls unused
* @param query hash code of the request
- * @param value the 'struct GSF_PendingRequest'
- * @return GNUNET_YES (continue to iterate)
+ * @param value the `struct GSF_PendingRequest`
+ * @return #GNUNET_YES (continue to iterate)
*/
static int
-cancel_pending_request (void *cls, const GNUNET_HashCode * query, void *value)
+cancel_pending_request (void *cls,
+ const struct GNUNET_HashCode *query,
+ void *value)
{
struct PeerRequest *peerreq = value;
struct GSF_PendingRequest *pr = peerreq->pr;
- struct GSF_ConnectedPeer *cp = peerreq->cp;
- struct GSF_PendingRequestData *prd;
- if (peerreq->kill_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (peerreq->kill_task);
- peerreq->kill_task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_STATISTICS_update (GSF_stats, gettext_noop ("# P2P searches active"),
- -1, GNUNET_NO);
- prd = GSF_pending_request_get_data_ (pr);
- GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (cp->request_map,
- &prd->query, peerreq));
- GSF_pending_request_cancel_ (pr, GNUNET_NO);
- GNUNET_free (peerreq);
+ free_pending_request (peerreq);
+ GSF_pending_request_cancel_ (pr,
+ GNUNET_NO);
return GNUNET_OK;
}
* Free the given request.
*
* @param cls the request to free
- * @param tc task context
*/
static void
-peer_request_destroy (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+peer_request_destroy (void *cls)
{
struct PeerRequest *peerreq = cls;
struct GSF_PendingRequest *pr = peerreq->pr;
struct GSF_PendingRequestData *prd;
- peerreq->kill_task = GNUNET_SCHEDULER_NO_TASK;
+ peerreq->kill_task = NULL;
prd = GSF_pending_request_get_data_ (pr);
- cancel_pending_request (NULL, &prd->query, peerreq);
+ cancel_pending_request (NULL,
+ &prd->query,
+ peerreq);
}
/**
* The artificial delay is over, transmit the message now.
*
- * @param cls the 'struct GSF_DelayedHandle' with the message
- * @param tc scheduler context
+ * @param cls the `struct GSF_DelayedHandle` with the message
*/
static void
-transmit_delayed_now (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+transmit_delayed_now (void *cls)
{
struct GSF_DelayedHandle *dh = cls;
struct GSF_ConnectedPeer *cp = dh->cp;
- GNUNET_CONTAINER_DLL_remove (cp->delayed_head, cp->delayed_tail, dh);
- if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
- {
- GNUNET_free (dh->pm);
- GNUNET_free (dh);
- return;
- }
- (void) GSF_peer_transmit_ (cp, GNUNET_NO, UINT32_MAX, REPLY_TIMEOUT,
- dh->msize, ©_reply, dh->pm);
+ GNUNET_CONTAINER_DLL_remove (cp->delayed_head,
+ cp->delayed_tail,
+ dh);
+ cp->delay_queue_size--;
+ GSF_peer_transmit_ (cp,
+ GNUNET_NO,
+ UINT32_MAX,
+ dh->env);
GNUNET_free (dh);
}
{
struct GNUNET_TIME_Relative ret;
- /* FIXME: replace 5000 with something relating to current observed P2P message latency */
ret =
GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, 5000));
+ (GNUNET_CRYPTO_QUALITY_WEAK,
+ 2 * GSF_avg_latency.rel_value_us + 1));
+#if INSANE_STATISTICS
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# artificial delays introduced (ms)"),
- ret.rel_value, GNUNET_NO);
-
+ ret.rel_value_us / 1000LL, GNUNET_NO);
+#endif
return ret;
}
* and will also not be called anymore after a call signalling
* expiration.
*
- * @param cls 'struct PeerRequest' this is an answer for
+ * @param cls `struct PeerRequest` this is an answer for
* @param eval evaluation of the result
* @param pr handle to the original pending request
* @param reply_anonymity_level anonymity level for the reply, UINT32_MAX for "unknown"
- * @param expiration when does 'data' expire?
+ * @param expiration when does @a data expire?
+ * @param last_transmission when did we last transmit a request for this block
* @param type type of the block
* @param data response data, NULL on request expiration
- * @param data_len number of bytes in data
+ * @param data_len number of bytes in @a data
*/
static void
-handle_p2p_reply (void *cls, enum GNUNET_BLOCK_EvaluationResult eval,
- struct GSF_PendingRequest *pr, uint32_t reply_anonymity_level,
+handle_p2p_reply (void *cls,
+ enum GNUNET_BLOCK_EvaluationResult eval,
+ struct GSF_PendingRequest *pr,
+ uint32_t reply_anonymity_level,
struct GNUNET_TIME_Absolute expiration,
- enum GNUNET_BLOCK_Type type, const void *data,
+ struct GNUNET_TIME_Absolute last_transmission,
+ enum GNUNET_BLOCK_Type type,
+ const void *data,
size_t data_len)
{
struct PeerRequest *peerreq = cls;
struct GSF_ConnectedPeer *cp = peerreq->cp;
struct GSF_PendingRequestData *prd;
+ struct GNUNET_MQ_Envelope *env;
struct PutMessage *pm;
size_t msize;
GNUNET_assert (data_len + sizeof (struct PutMessage) <
- GNUNET_SERVER_MAX_MESSAGE_SIZE);
+ GNUNET_MAX_MESSAGE_SIZE);
GNUNET_assert (peerreq->pr == pr);
prd = GSF_pending_request_get_data_ (pr);
if (NULL == data)
{
- GNUNET_STATISTICS_update (GSF_stats, gettext_noop ("# P2P searches active"),
- -1, GNUNET_NO);
- GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (cp->request_map,
- &prd->query, peerreq));
- GNUNET_free (peerreq);
+ free_pending_request (peerreq);
return;
}
- GNUNET_break (type != GNUNET_BLOCK_TYPE_ANY);
- if ((prd->type != type) && (prd->type != GNUNET_BLOCK_TYPE_ANY))
+ GNUNET_break (GNUNET_BLOCK_TYPE_ANY != type);
+ if ((prd->type != type) && (GNUNET_BLOCK_TYPE_ANY != prd->type))
{
- GNUNET_break (0);
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop
+ ("# replies dropped due to type mismatch"),
+ 1, GNUNET_NO);
return;
}
-#if DEBUG_FS
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Transmitting result for query `%s' to peer\n",
GNUNET_h2s (&prd->query));
-#endif
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop ("# replies received for other peers"),
1, GNUNET_NO);
msize = sizeof (struct PutMessage) + data_len;
- if (msize >= GNUNET_SERVER_MAX_MESSAGE_SIZE)
+ if (msize >= GNUNET_MAX_MESSAGE_SIZE)
{
GNUNET_break (0);
return;
}
- if ((reply_anonymity_level != UINT32_MAX) && (reply_anonymity_level > 1))
+ if ((UINT32_MAX != reply_anonymity_level) && (reply_anonymity_level > 1))
{
if (reply_anonymity_level - 1 > GSF_cover_content_count)
{
GSF_cover_content_count -= (reply_anonymity_level - 1);
}
- pm = GNUNET_malloc (msize);
- pm->header.type = htons (GNUNET_MESSAGE_TYPE_FS_PUT);
- pm->header.size = htons (msize);
+ env = GNUNET_MQ_msg_extra (pm,
+ data_len,
+ GNUNET_MESSAGE_TYPE_FS_PUT);
pm->type = htonl (type);
pm->expiration = GNUNET_TIME_absolute_hton (expiration);
- memcpy (&pm[1], data, data_len);
- if ((reply_anonymity_level != UINT32_MAX) && (reply_anonymity_level != 0) &&
- (GSF_enable_randomized_delays == GNUNET_YES))
+ GNUNET_memcpy (&pm[1],
+ data,
+ data_len);
+ if ( (UINT32_MAX != reply_anonymity_level) &&
+ (0 != reply_anonymity_level) &&
+ (GNUNET_YES == GSF_enable_randomized_delays) )
{
struct GSF_DelayedHandle *dh;
- dh = GNUNET_malloc (sizeof (struct GSF_DelayedHandle));
+ dh = GNUNET_new (struct GSF_DelayedHandle);
dh->cp = cp;
- dh->pm = pm;
+ dh->env = env;
dh->msize = msize;
- GNUNET_CONTAINER_DLL_insert (cp->delayed_head, cp->delayed_tail, dh);
+ GNUNET_CONTAINER_DLL_insert (cp->delayed_head,
+ cp->delayed_tail,
+ dh);
+ cp->delay_queue_size++;
dh->delay_task =
GNUNET_SCHEDULER_add_delayed (get_randomized_delay (),
- &transmit_delayed_now, dh);
+ &transmit_delayed_now,
+ dh);
}
else
{
- (void) GSF_peer_transmit_ (cp, GNUNET_NO, UINT32_MAX, REPLY_TIMEOUT, msize,
- ©_reply, pm);
+ GSF_peer_transmit_ (cp,
+ GNUNET_NO,
+ UINT32_MAX,
+ env);
}
- if (eval != GNUNET_BLOCK_EVALUATION_OK_LAST)
+ if (GNUNET_BLOCK_EVALUATION_OK_LAST != eval)
return;
- if (GNUNET_SCHEDULER_NO_TASK == peerreq->kill_task)
+ if (NULL == peerreq->kill_task)
{
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# P2P searches destroyed due to ultimate reply"),
- 1, GNUNET_NO);
+ 1,
+ GNUNET_NO);
peerreq->kill_task =
- GNUNET_SCHEDULER_add_now (&peer_request_destroy, peerreq);
+ GNUNET_SCHEDULER_add_now (&peer_request_destroy,
+ peerreq);
}
}
/**
- * Increase the host credit by a value.
+ * Increase the peer's respect by a value.
*
- * @param cp which peer to change the trust value on
+ * @param cp which peer to change the respect value on
* @param value is the int value by which the
- * host credit is to be increased or decreased
- * @returns the actual change in trust (positive or negative)
+ * peer's credit is to be increased or decreased
+ * @returns the actual change in respect (positive or negative)
*/
static int
-change_host_trust (struct GSF_ConnectedPeer *cp, int value)
+change_peer_respect (struct GSF_ConnectedPeer *cp, int value)
{
- if (value == 0)
+ if (0 == value)
return 0;
- GNUNET_assert (cp != NULL);
+ GNUNET_assert (NULL != cp);
if (value > 0)
{
- if (cp->ppd.trust + value < cp->ppd.trust)
+ if (cp->ppd.respect + value < cp->ppd.respect)
{
- value = UINT32_MAX - cp->ppd.trust;
- cp->ppd.trust = UINT32_MAX;
+ value = UINT32_MAX - cp->ppd.respect;
+ cp->ppd.respect = UINT32_MAX;
}
else
- cp->ppd.trust += value;
+ cp->ppd.respect += value;
}
else
{
- if (cp->ppd.trust < -value)
+ if (cp->ppd.respect < -value)
{
- value = -cp->ppd.trust;
- cp->ppd.trust = 0;
+ value = -cp->ppd.respect;
+ cp->ppd.respect = 0;
}
else
- cp->ppd.trust += value;
+ cp->ppd.respect += value;
}
return value;
}
/**
* We've received a request with the specified priority. Bound it
- * according to how much we trust the given peer.
+ * according to how much we respect the given peer.
*
* @param prio_in requested priority
* @param cp the peer making the request
* @return effective priority
*/
static int32_t
-bound_priority (uint32_t prio_in, struct GSF_ConnectedPeer *cp)
+bound_priority (uint32_t prio_in,
+ struct GSF_ConnectedPeer *cp)
{
#define N ((double)128.0)
uint32_t ret;
int ld;
ld = GSF_test_get_load_too_high_ (0);
- if (ld == GNUNET_SYSERR)
+ if (GNUNET_SYSERR == ld)
{
+#if INSANE_STATISTICS
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# requests done for free (low load)"), 1,
GNUNET_NO);
+#endif
return 0; /* excess resources */
}
if (prio_in > INT32_MAX)
prio_in = INT32_MAX;
- ret = -change_host_trust (cp, -(int) prio_in);
+ ret = -change_peer_respect (cp, -(int) prio_in);
if (ret > 0)
{
if (ret > GSF_current_priorities + N)
rret = ret;
GSF_current_priorities = (GSF_current_priorities * (N - 1) + rret) / N;
}
- if ((ld == GNUNET_YES) && (ret > 0))
+ if ((GNUNET_YES == ld) && (ret > 0))
{
/* try with charging */
ld = GSF_test_get_load_too_high_ (ret);
}
- if (ld == GNUNET_YES)
+ if (GNUNET_YES == ld)
{
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# request dropped, priority insufficient"), 1,
GNUNET_NO);
/* undo charge */
- change_host_trust (cp, (int) ret);
+ change_peer_respect (cp, (int) ret);
return -1; /* not enough resources */
}
else
*
* @param ttl_in requested ttl
* @param prio given priority
- * @return ttl_in if ttl_in is below the limit,
- * otherwise the ttl-limit for the given priority
+ * @return @a ttl_in if @a ttl_in is below the limit,
+ * otherwise the ttl-limit for the given @a prio
*/
static int32_t
-bound_ttl (int32_t ttl_in, uint32_t prio)
+bound_ttl (int32_t ttl_in,
+ uint32_t prio)
{
unsigned long long allowed;
}
+/**
+ * Closure for #test_exist_cb().
+ */
+struct TestExistClosure
+{
+
+ /**
+ * Priority of the incoming request.
+ */
+ int32_t priority;
+
+ /**
+ * Relative TTL of the incoming request.
+ */
+ int32_t ttl;
+
+ /**
+ * Type of the incoming request.
+ */
+ enum GNUNET_BLOCK_Type type;
+
+ /**
+ * Set to #GNUNET_YES if we are done handling the query.
+ */
+ int finished;
+
+};
+
+
+/**
+ * Test if the query already exists. If so, merge it, otherwise
+ * keep `finished` at #GNUNET_NO.
+ *
+ * @param cls our `struct TestExistClosure`
+ * @param hc the key of the query
+ * @param value the existing `struct PeerRequest`.
+ * @return #GNUNET_YES to continue to iterate,
+ * #GNUNET_NO if we successfully merged
+ */
+static int
+test_exist_cb (void *cls,
+ const struct GNUNET_HashCode *hc,
+ void *value)
+{
+ struct TestExistClosure *tec = cls;
+ struct PeerRequest *peerreq = value;
+ struct GSF_PendingRequest *pr;
+ struct GSF_PendingRequestData *prd;
+
+ pr = peerreq->pr;
+ prd = GSF_pending_request_get_data_ (pr);
+ if (prd->type != tec->type)
+ return GNUNET_YES;
+ if (prd->ttl.abs_value_us >=
+ GNUNET_TIME_absolute_get ().abs_value_us + tec->ttl * 1000LL)
+ {
+ /* existing request has higher TTL, drop new one! */
+ prd->priority += tec->priority;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Have existing request with higher TTL, dropping new request.\n");
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop
+ ("# requests dropped due to higher-TTL request"),
+ 1, GNUNET_NO);
+ tec->finished = GNUNET_YES;
+ return GNUNET_NO;
+ }
+ /* existing request has lower TTL, drop old one! */
+ tec->priority += prd->priority;
+ free_pending_request (peerreq);
+ GSF_pending_request_cancel_ (pr,
+ GNUNET_YES);
+ return GNUNET_NO;
+}
+
+
/**
* Handle P2P "QUERY" message. Creates the pending request entry
* and sets up all of the data structures to that we will
* process replies properly. Does not initiate forwarding or
* local database lookups.
*
- * @param other the other peer involved (sender or receiver, NULL
- * for loopback messages where we are both sender and receiver)
- * @param message the actual message
- * @return pending request handle, NULL on error
+ * @param cls the other peer involved (sender of the message)
+ * @param gm the GET message
*/
-struct GSF_PendingRequest *
-GSF_handle_p2p_query_ (const struct GNUNET_PeerIdentity *other,
- const struct GNUNET_MessageHeader *message)
+void
+handle_p2p_get (void *cls,
+ const struct GetMessage *gm)
{
+ struct GSF_ConnectedPeer *cps = cls;
struct PeerRequest *peerreq;
struct GSF_PendingRequest *pr;
- struct GSF_PendingRequestData *prd;
struct GSF_ConnectedPeer *cp;
- struct GSF_ConnectedPeer *cps;
- const GNUNET_HashCode *namespace;
const struct GNUNET_PeerIdentity *target;
enum GSF_PendingRequestOptions options;
uint16_t msize;
- const struct GetMessage *gm;
unsigned int bits;
- const GNUNET_HashCode *opt;
+ const struct GNUNET_PeerIdentity *opt;
uint32_t bm;
size_t bfsize;
uint32_t ttl_decrement;
- int32_t priority;
- int32_t ttl;
- enum GNUNET_BLOCK_Type type;
+ struct TestExistClosure tec;
GNUNET_PEER_Id spid;
+ const struct GSF_PendingRequestData *prd;
- GNUNET_assert (other != NULL);
- msize = ntohs (message->size);
- if (msize < sizeof (struct GetMessage))
- {
- GNUNET_break_op (0);
- return NULL;
- }
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# GET requests received (from other peers)"), 1,
- GNUNET_NO);
- gm = (const struct GetMessage *) message;
- type = ntohl (gm->type);
+ msize = ntohs (gm->header.size);
+ tec.type = ntohl (gm->type);
bm = ntohl (gm->hash_bitmap);
bits = 0;
while (bm > 0)
bits++;
bm >>= 1;
}
- if (msize < sizeof (struct GetMessage) + bits * sizeof (GNUNET_HashCode))
- {
- GNUNET_break_op (0);
- return NULL;
- }
- opt = (const GNUNET_HashCode *) &gm[1];
- bfsize = msize - sizeof (struct GetMessage) - bits * sizeof (GNUNET_HashCode);
- /* bfsize must be power of 2, check! */
- if (0 != ((bfsize - 1) & bfsize))
- {
- GNUNET_break_op (0);
- return NULL;
- }
+ opt = (const struct GNUNET_PeerIdentity *) &gm[1];
+ bfsize = msize - sizeof (struct GetMessage) - bits * sizeof (struct GNUNET_PeerIdentity);
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop
+ ("# GET requests received (from other peers)"),
+ 1,
+ GNUNET_NO);
GSF_cover_query_count++;
bm = ntohl (gm->hash_bitmap);
bits = 0;
- cps = GSF_peer_get_ (other);
- if (NULL == cps)
- {
- /* peer must have just disconnected */
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# requests dropped due to initiator not being connected"),
- 1, GNUNET_NO);
- return NULL;
- }
if (0 != (bm & GET_MESSAGE_BIT_RETURN_TO))
- cp = GSF_peer_get_ ((const struct GNUNET_PeerIdentity*) &opt[bits++]);
+ cp = GSF_peer_get_ (&opt[bits++]);
else
cp = cps;
- if (cp == NULL)
+ if (NULL == cp)
{
-#if DEBUG_FS
if (0 != (bm & GET_MESSAGE_BIT_RETURN_TO))
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to find RETURN-TO peer `%4s' in connection set. Dropping query.\n",
- GNUNET_i2s ((const struct GNUNET_PeerIdentity *)
- &opt[bits - 1]));
+ "Failed to find RETURN-TO peer `%s' in connection set. Dropping query.\n",
+ GNUNET_i2s (&opt[bits - 1]));
else
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to find peer `%4s' in connection set. Dropping query.\n",
- GNUNET_i2s (other));
-#endif
+ "Failed to find peer `%s' in connection set. Dropping query.\n",
+ GNUNET_i2s (cps->ppd.peer));
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# requests dropped due to missing reverse route"),
- 1, GNUNET_NO);
- return NULL;
+ 1,
+ GNUNET_NO);
+ return;
+ }
+ unsigned int queue_size = GNUNET_MQ_get_length (cp->mq);
+ queue_size += cp->ppd.pending_replies + cp->delay_queue_size;
+ if (queue_size > MAX_QUEUE_PER_PEER)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer `%s' has too many replies queued already. Dropping query.\n",
+ GNUNET_i2s (cps->ppd.peer));
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# requests dropped due to full reply queue"),
+ 1,
+ GNUNET_NO);
+ return;
}
/* note that we can really only check load here since otherwise
* peers could find out that we are overloaded by not being
* disconnected after sending us a malformed query... */
- priority = bound_priority (ntohl (gm->priority), cps);
- if (priority < 0)
+ tec.priority = bound_priority (ntohl (gm->priority),
+ cps);
+ if (tec.priority < 0)
{
-#if DEBUG_FS
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Dropping query from `%s', this peer is too busy.\n",
- GNUNET_i2s (other));
-#endif
- return NULL;
+ GNUNET_i2s (cps->ppd.peer));
+ return;
}
-#if DEBUG_FS
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request for `%s' of type %u from peer `%4s' with flags %u\n",
- GNUNET_h2s (&gm->query), (unsigned int) type, GNUNET_i2s (other),
+ "Received request for `%s' of type %u from peer `%s' with flags %u\n",
+ GNUNET_h2s (&gm->query),
+ (unsigned int) tec.type,
+ GNUNET_i2s (cps->ppd.peer),
(unsigned int) bm);
-#endif
- namespace = (0 != (bm & GET_MESSAGE_BIT_SKS_NAMESPACE)) ? &opt[bits++] : NULL;
- if ((type == GNUNET_BLOCK_TYPE_FS_SBLOCK) && (namespace == NULL))
- {
- GNUNET_break_op (0);
- return NULL;
- }
- if ((type != GNUNET_BLOCK_TYPE_FS_SBLOCK) && (namespace != NULL))
- {
- GNUNET_break_op (0);
- return NULL;
- }
target =
(0 !=
- (bm & GET_MESSAGE_BIT_TRANSMIT_TO)) ? ((const struct GNUNET_PeerIdentity
- *) &opt[bits++]) : NULL;
- options = 0;
+ (bm & GET_MESSAGE_BIT_TRANSMIT_TO)) ? (&opt[bits++]) : NULL;
+ options = GSF_PRO_DEFAULTS;
spid = 0;
- if ((GNUNET_LOAD_get_load (cp->ppd.transmission_delay) > 3 * (1 + priority))
+ if ((GNUNET_LOAD_get_load (cp->ppd.transmission_delay) > 3 * (1 + tec.priority))
|| (GNUNET_LOAD_get_average (cp->ppd.transmission_delay) >
- GNUNET_CONSTANTS_MAX_CORK_DELAY.rel_value * 2 +
+ GNUNET_CONSTANTS_MAX_CORK_DELAY.rel_value_us * 2 +
GNUNET_LOAD_get_average (GSF_rt_entry_lifetime)))
{
/* don't have BW to send to peer, or would likely take longer than we have for it,
* so at best indirect the query */
- priority = 0;
+ tec.priority = 0;
options |= GSF_PRO_FORWARD_ONLY;
- spid = GNUNET_PEER_intern (other);
+ spid = GNUNET_PEER_intern (cps->ppd.peer);
GNUNET_assert (0 != spid);
}
- ttl = bound_ttl (ntohl (gm->ttl), priority);
+ tec.ttl = bound_ttl (ntohl (gm->ttl),
+ tec.priority);
/* decrement ttl (always) */
ttl_decrement =
2 * TTL_DECREMENT + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
TTL_DECREMENT);
- if ((ttl < 0) && (((int32_t) (ttl - ttl_decrement)) > 0))
+ if ( (tec.ttl < 0) &&
+ (((int32_t) (tec.ttl - ttl_decrement)) > 0) )
{
-#if DEBUG_FS
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Dropping query from `%s' due to TTL underflow (%d - %u).\n",
- GNUNET_i2s (other), ttl, ttl_decrement);
-#endif
+ GNUNET_i2s (cps->ppd.peer),
+ tec.ttl,
+ ttl_decrement);
GNUNET_STATISTICS_update (GSF_stats,
gettext_noop
("# requests dropped due TTL underflow"), 1,
GNUNET_NO);
/* integer underflow => drop (should be very rare)! */
- return NULL;
+ return;
}
- ttl -= ttl_decrement;
+ tec.ttl -= ttl_decrement;
/* test if the request already exists */
- peerreq = GNUNET_CONTAINER_multihashmap_get (cp->request_map, &gm->query);
- if (peerreq != NULL)
- {
- pr = peerreq->pr;
- prd = GSF_pending_request_get_data_ (pr);
- if ((prd->type == type) &&
- ((type != GNUNET_BLOCK_TYPE_FS_SBLOCK) ||
- (0 == memcmp (&prd->namespace, namespace, sizeof (GNUNET_HashCode)))))
- {
- if (prd->ttl.abs_value >= GNUNET_TIME_absolute_get ().abs_value + ttl)
- {
- /* existing request has higher TTL, drop new one! */
- prd->priority += priority;
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Have existing request with higher TTL, dropping new request.\n",
- GNUNET_i2s (other));
-#endif
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# requests dropped due to higher-TTL request"),
- 1, GNUNET_NO);
- return NULL;
- }
- /* existing request has lower TTL, drop old one! */
- GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop ("# P2P searches active"), -1,
- GNUNET_NO);
- priority += prd->priority;
- GSF_pending_request_cancel_ (pr, GNUNET_YES);
- GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (cp->request_map,
- &gm->query,
- peerreq));
- if (peerreq->kill_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (peerreq->kill_task);
- peerreq->kill_task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_free (peerreq);
- }
- }
-
- peerreq = GNUNET_malloc (sizeof (struct PeerRequest));
+ tec.finished = GNUNET_NO;
+ GNUNET_CONTAINER_multihashmap_get_multiple (cp->request_map,
+ &gm->query,
+ &test_exist_cb,
+ &tec);
+ if (GNUNET_YES == tec.finished)
+ return; /* merged into existing request, we're done */
+
+ peerreq = GNUNET_new (struct PeerRequest);
peerreq->cp = cp;
- pr = GSF_pending_request_create_ (options, type, &gm->query, namespace,
+ pr = GSF_pending_request_create_ (options,
+ tec.type,
+ &gm->query,
target,
- (bfsize >
- 0) ? (const char *) &opt[bits] : NULL,
- bfsize, ntohl (gm->filter_mutator),
- 1 /* anonymity */ ,
- (uint32_t) priority, ttl, spid,
- GNUNET_PEER_intern (other),
- NULL, 0, /* replies_seen */
- &handle_p2p_reply, peerreq);
+ (bfsize > 0)
+ ? (const char *) &opt[bits]
+ : NULL,
+ bfsize,
+ ntohl (gm->filter_mutator),
+ 1 /* anonymity */,
+ (uint32_t) tec.priority,
+ tec.ttl,
+ spid,
+ GNUNET_PEER_intern (cps->ppd.peer),
+ NULL, 0, /* replies_seen */
+ &handle_p2p_reply,
+ peerreq);
GNUNET_assert (NULL != pr);
+ prd = GSF_pending_request_get_data_ (pr);
peerreq->pr = pr;
GNUNET_break (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (cp->request_map, &gm->query,
+ GNUNET_CONTAINER_multihashmap_put (cp->request_map,
+ &prd->query,
peerreq,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
GNUNET_STATISTICS_update (GSF_stats,
- gettext_noop
- ("# P2P query messages received and processed"), 1,
+ gettext_noop ("# P2P query messages received and processed"),
+ 1,
GNUNET_NO);
- GNUNET_STATISTICS_update (GSF_stats, gettext_noop ("# P2P searches active"),
- 1, GNUNET_NO);
- return pr;
-}
-
-
-/**
- * Function called if there has been a timeout trying to satisfy
- * a transmission request.
- *
- * @param cls the 'struct GSF_PeerTransmitHandle' of the request
- * @param tc scheduler context
- */
-static void
-peer_transmit_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GSF_PeerTransmitHandle *pth = cls;
- struct GSF_ConnectedPeer *cp;
-
-#if DEBUG_FS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Timeout trying to transmit to other peer\n");
-#endif
- pth->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- cp = pth->cp;
- GNUNET_CONTAINER_DLL_remove (cp->pth_head, cp->pth_tail, pth);
- if (GNUNET_YES == pth->is_query)
- GNUNET_assert (0 < cp->ppd.pending_queries--);
- else if (GNUNET_NO == pth->is_query)
- GNUNET_assert (0 < cp->ppd.pending_replies--);
- GNUNET_LOAD_update (cp->ppd.transmission_delay, UINT64_MAX);
- if (NULL != pth->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (pth->cth);
- pth->cth = NULL;
- }
- pth->gmc (pth->gmc_cls, 0, NULL);
- GNUNET_assert (0 == pth->cth_in_progress);
- GNUNET_free (pth);
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# P2P searches active"),
+ 1,
+ GNUNET_NO);
+ GSF_pending_request_get_data_ (pr)->has_started = GNUNET_YES;
+ GSF_local_lookup_ (pr,
+ &GSF_consider_forwarding,
+ NULL);
}
/**
* Transmit a message to the given peer as soon as possible.
* If the peer disconnects before the transmission can happen,
- * the callback is invoked with a 'NULL' buffer.
+ * the callback is invoked with a `NULL` @a buffer.
*
* @param cp target peer
- * @param is_query is this a query (GNUNET_YES) or content (GNUNET_NO) or neither (GNUNET_SYSERR)
+ * @param is_query is this a query (#GNUNET_YES) or content (#GNUNET_NO) or neither (#GNUNET_SYSERR)
* @param priority how important is this request?
- * @param timeout when does this request timeout (call gmc with error)
+ * @param timeout when does this request timeout
* @param size number of bytes we would like to send to the peer
- * @param gmc function to call to get the message
- * @param gmc_cls closure for gmc
- * @return handle to cancel request
+ * @param env message to send
*/
-struct GSF_PeerTransmitHandle *
-GSF_peer_transmit_ (struct GSF_ConnectedPeer *cp, int is_query,
- uint32_t priority, struct GNUNET_TIME_Relative timeout,
- size_t size, GSF_GetMessageCallback gmc, void *gmc_cls)
+void
+GSF_peer_transmit_ (struct GSF_ConnectedPeer *cp,
+ int is_query,
+ uint32_t priority,
+ struct GNUNET_MQ_Envelope *env)
{
struct GSF_PeerTransmitHandle *pth;
struct GSF_PeerTransmitHandle *pos;
struct GSF_PeerTransmitHandle *prev;
- pth = GNUNET_malloc (sizeof (struct GSF_PeerTransmitHandle));
+ pth = GNUNET_new (struct GSF_PeerTransmitHandle);
pth->transmission_request_start_time = GNUNET_TIME_absolute_get ();
- pth->timeout = GNUNET_TIME_relative_to_absolute (timeout);
- pth->gmc = gmc;
- pth->gmc_cls = gmc_cls;
- pth->size = size;
+ pth->env = env;
pth->is_query = is_query;
pth->priority = priority;
pth->cp = cp;
/* insertion sort (by priority, descending) */
prev = NULL;
pos = cp->pth_head;
- while ((pos != NULL) && (pos->priority > priority))
+ while ((NULL != pos) && (pos->priority > priority))
{
prev = pos;
pos = pos->next;
}
- if (prev == NULL)
- GNUNET_CONTAINER_DLL_insert (cp->pth_head, cp->pth_tail, pth);
- else
- GNUNET_CONTAINER_DLL_insert_after (cp->pth_head, cp->pth_tail, prev, pth);
+ GNUNET_CONTAINER_DLL_insert_after (cp->pth_head,
+ cp->pth_tail,
+ prev,
+ pth);
if (GNUNET_YES == is_query)
cp->ppd.pending_queries++;
else if (GNUNET_NO == is_query)
cp->ppd.pending_replies++;
- pth->timeout_task =
- GNUNET_SCHEDULER_add_delayed (timeout, &peer_transmit_timeout, pth);
schedule_transmission (pth);
- return pth;
-}
-
-
-/**
- * Cancel an earlier request for transmission.
- *
- * @param pth request to cancel
- */
-void
-GSF_peer_transmit_cancel_ (struct GSF_PeerTransmitHandle *pth)
-{
- struct GSF_ConnectedPeer *cp;
-
- if (pth->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (pth->timeout_task);
- pth->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- if (NULL != pth->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (pth->cth);
- pth->cth = NULL;
- }
- cp = pth->cp;
- GNUNET_CONTAINER_DLL_remove (cp->pth_head, cp->pth_tail, pth);
- if (GNUNET_YES == pth->is_query)
- GNUNET_assert (0 < cp->ppd.pending_queries--);
- else if (GNUNET_NO == pth->is_query)
- GNUNET_assert (0 < cp->ppd.pending_replies--);
- GNUNET_assert (0 == pth->cth_in_progress);
- GNUNET_free (pth);
}
struct GNUNET_TIME_Relative delay;
delay = GNUNET_TIME_absolute_get_duration (request_time);
- cp->ppd.avg_reply_delay.rel_value =
- (cp->ppd.avg_reply_delay.rel_value * (RUNAVG_DELAY_N - 1) +
- delay.rel_value) / RUNAVG_DELAY_N;
+ cp->ppd.avg_reply_delay.rel_value_us =
+ (cp->ppd.avg_reply_delay.rel_value_us * (RUNAVG_DELAY_N - 1) +
+ delay.rel_value_us) / RUNAVG_DELAY_N;
cp->ppd.avg_priority =
(cp->ppd.avg_priority * (RUNAVG_DELAY_N - 1) +
request_priority) / RUNAVG_DELAY_N;
}
+/**
+ * Write peer-respect information to a file - flush the buffer entry!
+ *
+ * @param cls unused
+ * @param key peer identity
+ * @param value the `struct GSF_ConnectedPeer` to flush
+ * @return #GNUNET_OK to continue iteration
+ */
+static int
+flush_respect (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
+{
+ struct GSF_ConnectedPeer *cp = value;
+ struct GNUNET_PeerIdentity pid;
+
+ if (cp->ppd.respect == cp->disk_respect)
+ return GNUNET_OK; /* unchanged */
+ GNUNET_assert (0 != cp->ppd.pid);
+ GNUNET_PEER_resolve (cp->ppd.pid, &pid);
+ GNUNET_PEERSTORE_store (peerstore, "fs", &pid, "respect", &cp->ppd.respect,
+ sizeof (cp->ppd.respect),
+ GNUNET_TIME_UNIT_FOREVER_ABS,
+ GNUNET_PEERSTORE_STOREOPTION_REPLACE,
+ NULL,
+ NULL);
+ return GNUNET_OK;
+}
+
+
/**
* A peer disconnected from us. Tear down the connected peer
* record.
*
* @param cls unused
- * @param peer identity of peer that connected
+ * @param peer identity of peer that disconnected
+ * @param internal_cls the corresponding `struct GSF_ConnectedPeer`
*/
void
-GSF_peer_disconnect_handler_ (void *cls, const struct GNUNET_PeerIdentity *peer)
+GSF_peer_disconnect_handler (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ void *internal_cls)
{
- struct GSF_ConnectedPeer *cp;
+ struct GSF_ConnectedPeer *cp = internal_cls;
struct GSF_PeerTransmitHandle *pth;
struct GSF_DelayedHandle *dh;
- cp = GSF_peer_get_ (peer);
if (NULL == cp)
- return; /* must have been disconnect from core with
- * 'peer' == my_id, ignore */
+ return; /* must have been disconnect from core with
+ * 'peer' == my_id, ignore */
+ flush_respect (NULL,
+ peer,
+ cp);
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (cp_map,
- &peer->hashPubKey, cp));
+ GNUNET_CONTAINER_multipeermap_remove (cp_map,
+ peer,
+ cp));
GNUNET_STATISTICS_set (GSF_stats,
- gettext_noop
- ("# connected peers"),
- GNUNET_CONTAINER_multihashmap_size (cp_map),
- GNUNET_NO);
- if (NULL != cp->migration_pth)
+ gettext_noop ("# peers connected"),
+ GNUNET_CONTAINER_multipeermap_size (cp_map),
+ GNUNET_NO);
+ if (NULL != cp->respect_iterate_req)
{
- GSF_peer_transmit_cancel_ (cp->migration_pth);
- cp->migration_pth = NULL;
+ GNUNET_PEERSTORE_iterate_cancel (cp->respect_iterate_req);
+ cp->respect_iterate_req = NULL;
}
if (NULL != cp->rc)
{
GNUNET_ATS_reserve_bandwidth_cancel (cp->rc);
cp->rc = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != cp->rc_delay_task)
+ if (NULL != cp->rc_delay_task)
{
GNUNET_SCHEDULER_cancel (cp->rc_delay_task);
- cp->rc_delay_task = GNUNET_SCHEDULER_NO_TASK;
+ cp->rc_delay_task = NULL;
}
GNUNET_CONTAINER_multihashmap_iterate (cp->request_map,
- &cancel_pending_request, cp);
+ &cancel_pending_request,
+ cp);
GNUNET_CONTAINER_multihashmap_destroy (cp->request_map);
cp->request_map = NULL;
GSF_plan_notify_peer_disconnect_ (cp);
GNUNET_LOAD_value_free (cp->ppd.transmission_delay);
- GNUNET_PEER_decrement_rcs (cp->ppd.last_p2p_replies, P2P_SUCCESS_LIST_SIZE);
- memset (cp->ppd.last_p2p_replies, 0, sizeof (cp->ppd.last_p2p_replies));
+ GNUNET_PEER_decrement_rcs (cp->ppd.last_p2p_replies,
+ P2P_SUCCESS_LIST_SIZE);
+ memset (cp->ppd.last_p2p_replies,
+ 0,
+ sizeof (cp->ppd.last_p2p_replies));
GSF_push_stop_ (cp);
while (NULL != (pth = cp->pth_head))
{
- if (NULL != pth->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (pth->cth);
- pth->cth = NULL;
- }
- if (pth->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (pth->timeout_task);
- pth->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_CONTAINER_DLL_remove (cp->pth_head, cp->pth_tail, pth);
- GNUNET_assert (0 == pth->cth_in_progress);
- pth->gmc (pth->gmc_cls, 0, NULL);
+ GNUNET_CONTAINER_DLL_remove (cp->pth_head,
+ cp->pth_tail,
+ pth);
+ if (GNUNET_YES == pth->is_query)
+ GNUNET_assert (0 < cp->ppd.pending_queries--);
+ else if (GNUNET_NO == pth->is_query)
+ GNUNET_assert (0 < cp->ppd.pending_replies--);
GNUNET_free (pth);
}
while (NULL != (dh = cp->delayed_head))
{
- GNUNET_CONTAINER_DLL_remove (cp->delayed_head, cp->delayed_tail, dh);
+ GNUNET_CONTAINER_DLL_remove (cp->delayed_head,
+ cp->delayed_tail,
+ dh);
+ GNUNET_MQ_discard (dh->env);
+ cp->delay_queue_size--;
GNUNET_SCHEDULER_cancel (dh->delay_task);
- GNUNET_free (dh->pm);
GNUNET_free (dh);
}
GNUNET_PEER_change_rc (cp->ppd.pid, -1);
- if (GNUNET_SCHEDULER_NO_TASK != cp->mig_revive_task)
+ if (NULL != cp->mig_revive_task)
{
GNUNET_SCHEDULER_cancel (cp->mig_revive_task);
- cp->mig_revive_task = GNUNET_SCHEDULER_NO_TASK;
+ cp->mig_revive_task = NULL;
}
+ GNUNET_break (0 == cp->ppd.pending_queries);
+ GNUNET_break (0 == cp->ppd.pending_replies);
GNUNET_free (cp);
}
/**
- * Closure for 'call_iterator'.
+ * Closure for #call_iterator().
*/
struct IterationContext
{
GSF_ConnectedPeerIterator it;
/**
- * Closure for 'it'.
+ * Closure for @e it.
*/
void *it_cls;
};
/**
* Function that calls the callback for each peer.
*
- * @param cls the 'struct IterationContext*'
+ * @param cls the `struct IterationContext *`
* @param key identity of the peer
- * @param value the 'struct GSF_ConnectedPeer*'
- * @return GNUNET_YES to continue iteration
+ * @param value the `struct GSF_ConnectedPeer *`
+ * @return #GNUNET_YES to continue iteration
*/
static int
-call_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+call_iterator (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
struct IterationContext *ic = cls;
struct GSF_ConnectedPeer *cp = value;
- ic->it (ic->it_cls, (const struct GNUNET_PeerIdentity *) key, cp, &cp->ppd);
+ ic->it (ic->it_cls,
+ key, cp,
+ &cp->ppd);
return GNUNET_YES;
}
* Iterate over all connected peers.
*
* @param it function to call for each peer
- * @param it_cls closure for it
+ * @param it_cls closure for @a it
*/
void
-GSF_iterate_connected_peers_ (GSF_ConnectedPeerIterator it, void *it_cls)
+GSF_iterate_connected_peers_ (GSF_ConnectedPeerIterator it,
+ void *it_cls)
{
struct IterationContext ic;
ic.it = it;
ic.it_cls = it_cls;
- GNUNET_CONTAINER_multihashmap_iterate (cp_map, &call_iterator, &ic);
+ GNUNET_CONTAINER_multipeermap_iterate (cp_map,
+ &call_iterator,
+ &ic);
}
/**
* Obtain the identity of a connected peer.
*
- * @param cp peer to reserve bandwidth from
+ * @param cp peer to get identity of
* @param id identity to set (written to)
*/
void
/**
- * Assemble a migration stop message for transmission.
+ * Obtain the identity of a connected peer.
*
- * @param cls the 'struct GSF_ConnectedPeer' to use
- * @param size number of bytes we're allowed to write to buf
- * @param buf where to copy the message
- * @return number of bytes copied to buf
+ * @param cp peer to get identity of
+ * @return reference to peer identity, valid until peer disconnects (!)
*/
-static size_t
-create_migration_stop_message (void *cls, size_t size, void *buf)
+const struct GNUNET_PeerIdentity *
+GSF_connected_peer_get_identity2_ (const struct GSF_ConnectedPeer *cp)
{
- struct GSF_ConnectedPeer *cp = cls;
- struct MigrationStopMessage msm;
-
- cp->migration_pth = NULL;
- if (NULL == buf)
- return 0;
- GNUNET_assert (size >= sizeof (struct MigrationStopMessage));
- msm.header.size = htons (sizeof (struct MigrationStopMessage));
- msm.header.type = htons (GNUNET_MESSAGE_TYPE_FS_MIGRATION_STOP);
- msm.reserved = htonl (0);
- msm.duration =
- GNUNET_TIME_relative_hton (GNUNET_TIME_absolute_get_remaining
- (cp->last_migration_block));
- memcpy (buf, &msm, sizeof (struct MigrationStopMessage));
- return sizeof (struct MigrationStopMessage);
+ GNUNET_assert (0 != cp->ppd.pid);
+ return GNUNET_PEER_resolve2 (cp->ppd.pid);
}
*/
void
GSF_block_peer_migration_ (struct GSF_ConnectedPeer *cp,
- struct GNUNET_TIME_Relative block_time)
+ struct GNUNET_TIME_Absolute block_time)
{
- if (GNUNET_TIME_absolute_get_remaining (cp->last_migration_block).rel_value >
- block_time.rel_value)
+ struct GNUNET_MQ_Envelope *env;
+ struct MigrationStopMessage *msm;
+
+ if (cp->last_migration_block.abs_value_us > block_time.abs_value_us)
{
-#if DEBUG_FS && 0
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Migration already blocked for another %llu ms\n",
- (unsigned long long)
- GNUNET_TIME_absolute_get_remaining
- (cp->last_migration_block).rel_value);
-#endif
+ "Migration already blocked for another %s\n",
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_remaining
+ (cp->last_migration_block), GNUNET_YES));
return; /* already blocked */
}
-#if DEBUG_FS && 0
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asking to stop migration for %llu ms\n",
- (unsigned long long) block_time.rel_value);
-#endif
- cp->last_migration_block = GNUNET_TIME_relative_to_absolute (block_time);
- if (cp->migration_pth != NULL)
- GSF_peer_transmit_cancel_ (cp->migration_pth);
- cp->migration_pth =
- GSF_peer_transmit_ (cp, GNUNET_SYSERR, UINT32_MAX,
- GNUNET_TIME_UNIT_FOREVER_REL,
- sizeof (struct MigrationStopMessage),
- &create_migration_stop_message, cp);
-}
-
-
-/**
- * Write host-trust information to a file - flush the buffer entry!
- *
- * @param cls closure, not used
- * @param key host identity
- * @param value the 'struct GSF_ConnectedPeer' to flush
- * @return GNUNET_OK to continue iteration
- */
-static int
-flush_trust (void *cls, const GNUNET_HashCode * key, void *value)
-{
- struct GSF_ConnectedPeer *cp = value;
- char *fn;
- uint32_t trust;
- struct GNUNET_PeerIdentity pid;
-
- if (cp->ppd.trust == cp->disk_trust)
- return GNUNET_OK; /* unchanged */
- GNUNET_assert (0 != cp->ppd.pid);
- GNUNET_PEER_resolve (cp->ppd.pid, &pid);
- fn = get_trust_filename (&pid);
- if (cp->ppd.trust == 0)
- {
- if ((0 != UNLINK (fn)) && (errno != ENOENT))
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING |
- GNUNET_ERROR_TYPE_BULK, "unlink", fn);
- }
- else
- {
- trust = htonl (cp->ppd.trust);
- if (sizeof (uint32_t) ==
- GNUNET_DISK_fn_write (fn, &trust, sizeof (uint32_t),
- GNUNET_DISK_PERM_USER_READ |
- GNUNET_DISK_PERM_USER_WRITE |
- GNUNET_DISK_PERM_GROUP_READ |
- GNUNET_DISK_PERM_OTHER_READ))
- cp->disk_trust = cp->ppd.trust;
- }
- GNUNET_free (fn);
- return GNUNET_OK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asking to stop migration for %s\n",
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_remaining (block_time),
+ GNUNET_YES));
+ cp->last_migration_block = block_time;
+ env = GNUNET_MQ_msg (msm,
+ GNUNET_MESSAGE_TYPE_FS_MIGRATION_STOP);
+ msm->reserved = htonl (0);
+ msm->duration
+ = GNUNET_TIME_relative_hton (GNUNET_TIME_absolute_get_remaining
+ (cp->last_migration_block));
+ GNUNET_STATISTICS_update (GSF_stats,
+ gettext_noop ("# migration stop messages sent"),
+ 1,
+ GNUNET_NO);
+ GSF_peer_transmit_ (cp,
+ GNUNET_SYSERR,
+ UINT32_MAX,
+ env);
}
/**
- * Call this method periodically to flush trust information to disk.
+ * Call this method periodically to flush respect information to disk.
*
* @param cls closure, not used
- * @param tc task context, not used
*/
static void
-cron_flush_trust (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+cron_flush_respect (void *cls)
{
-
- if (NULL == cp_map)
- return;
- GNUNET_CONTAINER_multihashmap_iterate (cp_map, &flush_trust, NULL);
- if (NULL == tc)
- return;
- if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
- return;
- GNUNET_SCHEDULER_add_delayed (TRUST_FLUSH_FREQ, &cron_flush_trust, NULL);
+ fr_task = NULL;
+ GNUNET_CONTAINER_multipeermap_iterate (cp_map,
+ &flush_respect,
+ NULL);
+ fr_task = GNUNET_SCHEDULER_add_delayed_with_priority (RESPECT_FLUSH_FREQ,
+ GNUNET_SCHEDULER_PRIORITY_HIGH,
+ &cron_flush_respect, NULL);
}
void
GSF_connected_peer_init_ ()
{
- cp_map = GNUNET_CONTAINER_multihashmap_create (128);
- ats = GNUNET_ATS_performance_init (GSF_cfg, NULL, NULL);
- GNUNET_assert (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_filename (GSF_cfg, "fs",
- "TRUST",
- &trustDirectory));
- GNUNET_DISK_directory_create (trustDirectory);
- GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_HIGH,
- &cron_flush_trust, NULL);
-}
-
-
-/**
- * Iterator to free peer entries.
- *
- * @param cls closure, unused
- * @param key current key code
- * @param value value in the hash map (peer entry)
- * @return GNUNET_YES (we should continue to iterate)
- */
-static int
-clean_peer (void *cls, const GNUNET_HashCode * key, void *value)
-{
- GSF_peer_disconnect_handler_ (NULL, (const struct GNUNET_PeerIdentity *) key);
- return GNUNET_YES;
+ cp_map = GNUNET_CONTAINER_multipeermap_create (128, GNUNET_YES);
+ peerstore = GNUNET_PEERSTORE_connect (GSF_cfg);
+ fr_task = GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_HIGH,
+ &cron_flush_respect, NULL);
}
void
GSF_connected_peer_done_ ()
{
- cron_flush_trust (NULL, NULL);
- GNUNET_CONTAINER_multihashmap_iterate (cp_map, &clean_peer, NULL);
- GNUNET_CONTAINER_multihashmap_destroy (cp_map);
+ GNUNET_CONTAINER_multipeermap_iterate (cp_map,
+ &flush_respect,
+ NULL);
+ GNUNET_SCHEDULER_cancel (fr_task);
+ fr_task = NULL;
+ GNUNET_CONTAINER_multipeermap_destroy (cp_map);
cp_map = NULL;
- GNUNET_free (trustDirectory);
- trustDirectory = NULL;
- GNUNET_ATS_performance_done (ats);
- ats = NULL;
+ GNUNET_PEERSTORE_disconnect (peerstore,
+ GNUNET_YES);
+
}
/**
* Iterator to remove references to LC entry.
*
- * @param cls the 'struct GSF_LocalClient*' to look for
+ * @param cls the `struct GSF_LocalClient *` to look for
* @param key current key code
* @param value value in the hash map (peer entry)
- * @return GNUNET_YES (we should continue to iterate)
+ * @return #GNUNET_YES (we should continue to iterate)
*/
static int
-clean_local_client (void *cls, const GNUNET_HashCode * key, void *value)
+clean_local_client (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
const struct GSF_LocalClient *lc = cls;
struct GSF_ConnectedPeer *cp = value;
{
if (NULL == cp_map)
return; /* already cleaned up */
- GNUNET_CONTAINER_multihashmap_iterate (cp_map, &clean_local_client,
+ GNUNET_CONTAINER_multipeermap_iterate (cp_map,
+ &clean_local_client,
(void *) lc);
}
projects / oweals / gnunet.git / blobdiff