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 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
*/
#include "platform.h"
-#include "gnunet_common.h"
+#include "gnunet_util_lib.h"
#include "gnunet_protocols.h"
#include "gnunet_applications.h"
-#include "gnunet_util_lib.h"
#include "gnunet_set_service.h"
#include "gnunet_consensus_service.h"
#include "consensus_protocol.h"
* Only valid once the current round is not CONSENSUS_ROUND_BEGIN.
*/
struct GNUNET_TIME_Relative conclude_timeout;
-
+
/**
* Timeout task identifier for the current round.
*/
/**
* Permutation of peers for the current round,
- * maps logical index (for current round) to physical index (location in info array)
*/
uint32_t *shuffle;
+ /**
+ * Inverse permutation of peers for the current round,
+ */
+ uint32_t *shuffle_inv;
+
/**
* Current round of the exponential scheme.
*/
{
int not_finished;
not_finished = 0;
- if ( (NULL != session->partner_outgoing) &&
+ if ( (NULL != session->partner_outgoing) &&
(GNUNET_NO == session->partner_outgoing->exp_subround_finished) )
not_finished++;
if ( (NULL != session->partner_incoming) &&
/**
* Destroy a session, free all resources associated with it.
- *
+ *
* @param session the session to destroy
*/
static void
GNUNET_free (session->shuffle);
session->shuffle = NULL;
}
+ if (NULL != session->shuffle_inv)
+ {
+ GNUNET_free (session->shuffle_inv);
+ session->shuffle_inv = NULL;
+ }
if (NULL != session->info)
{
for (i = 0; i < session->num_peers; i++)
* @param tc task context, for when this task is invoked by the scheduler,
* NULL if invoked for another reason
*/
-static void
+static void
round_over (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct ConsensusSession *session;
if (NULL == session->shuffle)
session->shuffle = GNUNET_malloc (session->num_peers * sizeof (*session->shuffle));
+ if (NULL == session->shuffle_inv)
+ session->shuffle_inv = GNUNET_malloc (session->num_peers * sizeof (*session->shuffle_inv));
- GNUNET_CRYPTO_kdf (randomness, sizeof (randomness),
+ GNUNET_CRYPTO_kdf (randomness, sizeof (randomness),
&session->exp_round, sizeof (uint32_t),
&session->global_id, sizeof (struct GNUNET_HashCode),
NULL);
session->shuffle[x] = session->shuffle[i];
session->shuffle[i] = tmp;
}
+
+ /* create the inverse */
+ for (i = 0; i < session->num_peers; i++)
+ session->shuffle_inv[session->shuffle[i]] = i;
}
{
/* we are outgoing */
partner_idx = (my_idx + arc) % session->num_peers;
- session->partner_outgoing = &session->info[session->shuffle[partner_idx]];
+ session->partner_outgoing = &session->info[session->shuffle_inv[partner_idx]];
session->partner_outgoing->exp_subround_finished = GNUNET_NO;
/* are we a 'ghost' of a peer that would exist if
* the number of peers was a power of two, and thus have to partner
if (0 == (ghost_partner_idx & arc))
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ghost partner is %d\n", ghost_partner_idx);
- session->partner_incoming = &session->info[session->shuffle[ghost_partner_idx]];
+ session->partner_incoming = &session->info[session->shuffle_inv[ghost_partner_idx]];
session->partner_incoming->exp_subround_finished = GNUNET_NO;
return;
}
if (partner_idx < 0)
partner_idx += session->num_peers;
session->partner_outgoing = NULL;
- session->partner_incoming = &session->info[session->shuffle[partner_idx]];
+ session->partner_incoming = &session->info[session->shuffle_inv[partner_idx]];
session->partner_incoming->exp_subround_finished = GNUNET_NO;
}
* @param element a result element, only valid if status is GNUNET_SET_STATUS_OK
* @param status see enum GNUNET_SET_Status
*/
-static void
+static void
set_result_cb (void *cls,
const struct GNUNET_SET_Element *element,
enum GNUNET_SET_Status status)
* Compare the round the session is in with the round of the given context message.
*
* @param session a consensus session
- * @param round a round context message
+ * @param ri a round context message
* @return 0 if it's the same round, -1 if the session is in an earlier round,
* 1 if the session is in a later round
*/
GNUNET_SCHEDULER_cancel (session->round_timeout_tid);
session->round_timeout_tid = GNUNET_SCHEDULER_NO_TASK;
}
-
+
if (session->exp_round >= NUM_EXP_ROUNDS)
{
round_over (session, NULL);
session->exp_subround = 0;
if (NULL == session->shuffle)
session->shuffle = GNUNET_malloc ((sizeof (int)) * session->num_peers);
+ if (NULL == session->shuffle_inv)
+ session->shuffle_inv = GNUNET_malloc ((sizeof (int)) * session->num_peers);
for (i = 0; i < session->num_peers; i++)
- session->shuffle[i] = i;
+ session->shuffle[i] = session->shuffle_inv[i] = i;
}
else if (session->exp_subround + 1 >= (int) ceil (log2 (session->num_peers)))
{
/* subrounds done, start new log-round */
session->exp_round++;
session->exp_subround = 0;
- //shuffle (session);
+ shuffle (session);
}
- else
+ else
{
session->exp_subround++;
}
* @param session_id local id of the consensus session
*/
static void
-compute_global_id (struct ConsensusSession *session, const struct GNUNET_HashCode *session_id)
+compute_global_id (struct ConsensusSession *session,
+ const struct GNUNET_HashCode *session_id)
{
int i;
struct GNUNET_HashCode tmp;
+ struct GNUNET_HashCode phash;
/* FIXME: use kdf? */
session->global_id = *session_id;
for (i = 0; i < session->num_peers; ++i)
{
- GNUNET_CRYPTO_hash_xor (&session->global_id, &session->info[i].peer_id.hashPubKey, &tmp);
+ GNUNET_CRYPTO_hash (&session->info[i].peer_id, sizeof (struct GNUNET_PeerIdentity), &phash);
+ GNUNET_CRYPTO_hash_xor (&session->global_id, &phash, &tmp);
session->global_id = tmp;
GNUNET_CRYPTO_hash (&session->global_id, sizeof (struct GNUNET_PeerIdentity), &tmp);
session->global_id = tmp;
/* peers in the join message, may or may not include the local peer */
listed_peers = ntohl (join_msg->num_peers);
-
+
session->num_peers = listed_peers;
msg_peers = (struct GNUNET_PeerIdentity *) &join_msg[1];
other_session = sessions_head;
while (NULL != other_session)
{
- if ((other_session != session) &&
+ if ((other_session != session) &&
(0 == GNUNET_CRYPTO_hash_cmp (&session->global_id, &other_session->global_id)))
{
if (CONSENSUS_ROUND_FINISH != other_session->current_round)
}
if (session->num_peers <= 1)
{
- /* FIXME: what to do here? */
- //send_client_conclude_done (session);
+ session->current_round = CONSENSUS_ROUND_FINISH;
+ GNUNET_SET_iterate (session->element_set, send_to_client_iter, session);
}
else
{
cfg = c;
srv = server;
- if (GNUNET_OK != GNUNET_CRYPTO_get_host_identity (cfg, &my_peer))
+ if (GNUNET_OK != GNUNET_CRYPTO_get_peer_identity (cfg, &my_peer))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "could not retrieve host identity\n");
GNUNET_break (0);
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