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authorSupriti Singh <supritisingh08@gmail.com>2014-08-24 22:28:45 +0000
committerSupriti Singh <supritisingh08@gmail.com>2014-08-24 22:28:45 +0000
commit4e042c2ff9035c96c1e1edf83100c2dc6863fa17 (patch)
treedbf030f2531bf61ea1f8a43a9850b9a70f5dedb0 /src
parent7b9618d4bb1b6bf38877b9b85ad29b4595923c46 (diff)
Randomized PUT/GET delay interval.
Diffstat (limited to 'src')
-rw-r--r--src/dht/gnunet-service-xdht_neighbours.c39
-rw-r--r--src/dht/gnunet_dht_profiler.c19
-rw-r--r--src/dht/gnunet_dht_r5n_profiler.c668
3 files changed, 688 insertions, 38 deletions
diff --git a/src/dht/gnunet-service-xdht_neighbours.c b/src/dht/gnunet-service-xdht_neighbours.c
index 332156d00..dde456037 100644
--- a/src/dht/gnunet-service-xdht_neighbours.c
+++ b/src/dht/gnunet-service-xdht_neighbours.c
@@ -80,7 +80,7 @@
/**
* How long to wait before sending another verify successor message.
*/
-#define DHT_SEND_VERIFY_SUCCESSOR_INTERVAL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
+#define DHT_SEND_VERIFY_SUCCESSOR_INTERVAL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2)
/**
* How long to wait before sending another verify successor message.
@@ -4826,31 +4826,7 @@ handle_dht_p2p_verify_successor(void *cls,
{
next_hop = GDS_ROUTING_get_next_hop (trail_id, GDS_ROUTING_SRC_TO_DEST);
if (NULL == next_hop)
- {
- //SUPUs anyways you are passing the trail, just do the lookup
- // and pass the message forward.
-// int my_index = search_my_index (trail, trail_length);
-// if(-1 == my_index)
-// {
-// DEBUG(" Peer %s not present in trail id %s, line =%d",
-// GNUNET_i2s(&my_identity), GNUNET_h2s(&trail_id), __LINE__);
-// GNUNET_break_op (0);
-// return GNUNET_OK;
-// }
-// if((my_index == trail_length + 1))
-// {
-// DEBUG(" Peer %s present twice in trail id %s, line =%d",
-// GNUNET_i2s(&my_identity), GNUNET_h2s(&trail_id), __LINE__);
-// GNUNET_break_op (0);
-// return GNUNET_OK;
-// }
-// if(my_index == (trail_length - 1))
-// {
-// *next_hop = successor;
-// }
-// else
-// *next_hop = trail[my_index + 1];
-
+ {
return GNUNET_OK;
}
@@ -5033,17 +5009,10 @@ compare_and_update_successor (struct GNUNET_PeerIdentity curr_succ,
memcpy (&my_id, &my_identity, sizeof(uint64_t));
my_id_str = GNUNET_strdup (GNUNET_i2s_full (&my_identity));
memcpy(&succ, &current_successor->finger_identity, sizeof(uint64_t));
+ succ = GNUNET_ntohll(succ);
GNUNET_asprintf (&key, "XDHT:%s:", my_id_str);
GNUNET_free (my_id_str);
- FPRINTF (stderr,_("\nSUPU %s, %s, %d,MY_ID = %llu and successor_id = %llu"),
- __FILE__, __func__,__LINE__,(unsigned long long)my_id, (unsigned long long)succ);
- struct GNUNET_PeerIdentity print_peer;
- print_peer = my_identity;
- FPRINTF (stderr,_("\nSUPU my_id = %s,my_id64 = %llu, %s, %s, %d"),
- GNUNET_i2s(&print_peer),(unsigned long long)my_id,__FILE__, __func__,__LINE__);
- print_peer = current_successor->finger_identity;
- FPRINTF (stderr,_("\nSUPU current_successor->finger_identity = %s,my_id64 = %llu, %s, %s, %d"),
- GNUNET_i2s(&print_peer),(unsigned long long)succ,__FILE__, __func__,__LINE__);
+
GNUNET_STATISTICS_set (GDS_stats, key, succ, 0);
GNUNET_free (key);
}
diff --git a/src/dht/gnunet_dht_profiler.c b/src/dht/gnunet_dht_profiler.c
index bc6a08ebc..12fa7be4d 100644
--- a/src/dht/gnunet_dht_profiler.c
+++ b/src/dht/gnunet_dht_profiler.c
@@ -373,7 +373,6 @@ static int in_shutdown = 0;
static void
collect_stats (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
/**
* Shutdown task. Cleanup all resources and operations.
*
@@ -741,12 +740,24 @@ dht_connected (void *cls,
switch (mode)
{
case MODE_PUT:
+ {
+ delay_put.rel_value_us =
+ delay_put.rel_value_us +
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ delay_put.rel_value_us);
ac->delay_task = GNUNET_SCHEDULER_add_delayed (delay_put, &delayed_put, ac);
break;
+ }
case MODE_GET:
+ {
+ delay_get.rel_value_us =
+ delay_get.rel_value_us +
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ delay_get.rel_value_us);
ac->delay_task = GNUNET_SCHEDULER_add_delayed (delay_get, &delayed_get, ac);
break;
}
+ }
}
@@ -1060,6 +1071,8 @@ set_malicious()
}
}
#endif
+
+
/**
* Callback called when DHT service on the peer is started
*
@@ -1254,10 +1267,10 @@ main (int argc, char *const *argv)
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
/* set default delays */
- delay_stats = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
+ delay_stats = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1);
delay_put = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1);
delay_get = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1);
- timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 3);
+ timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5);
replication = 1; /* default replication */
rc = 0;
if (GNUNET_OK !=
diff --git a/src/dht/gnunet_dht_r5n_profiler.c b/src/dht/gnunet_dht_r5n_profiler.c
new file mode 100644
index 000000000..9921c0aed
--- /dev/null
+++ b/src/dht/gnunet_dht_r5n_profiler.c
@@ -0,0 +1,668 @@
+/*
+ This file is part of GNUnet.
+ (C) 2014 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ 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
+ 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.
+
+ 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.
+*/
+
+/**
+ * @file dht/gnunet_dht_profiler.c
+ * @brief Profiler for GNUnet DHT
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_testbed_service.h"
+#include "gnunet_dht_service.h"
+
+#define INFO(...) \
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, __VA_ARGS__)
+
+#define DEBUG(...) \
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
+
+/**
+ * Number of peers which should perform a PUT out of 100 peers
+ */
+#define PUT_PROBABILITY 50
+
+/**
+ * Configuration
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Name of the file with the hosts to run the test over
+ */
+static char *hosts_file;
+
+/**
+ * Context for a peer which actively does DHT PUT/GET
+ */
+struct ActiveContext;
+
+/**
+ * Context to hold data of peer
+ */
+struct Context
+{
+
+ /**
+ * The testbed peer this context belongs to
+ */
+ struct GNUNET_TESTBED_Peer *peer;
+
+ /**
+ * Testbed operation acting on this peer
+ */
+ struct GNUNET_TESTBED_Operation *op;
+
+ /**
+ * Active context; NULL if this peer is not an active peer
+ */
+ struct ActiveContext *ac;
+};
+
+
+/**
+ * Context for a peer which actively does DHT PUT/GET
+ */
+struct ActiveContext
+{
+ /**
+ * The linked peer context
+ */
+ struct Context *ctx;
+
+ /**
+ * Handler to the DHT service
+ */
+ struct GNUNET_DHT_Handle *dht;
+
+ /**
+ * The data used for do a PUT. Will be NULL if a PUT hasn't been performed yet
+ */
+ void *put_data;
+
+ /**
+ * The active context used for our DHT GET
+ */
+ struct ActiveContext *get_ac;
+
+ /**
+ * The put handle
+ */
+ struct GNUNET_DHT_PutHandle *dht_put;
+
+ /**
+ * The get handle
+ */
+ struct GNUNET_DHT_GetHandle *dht_get;
+
+ /**
+ * The hash of the @put_data
+ */
+ struct GNUNET_HashCode hash;
+
+ /**
+ * Delay task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier delay_task;
+
+ /**
+ * The size of the put_data
+ */
+ uint16_t put_data_size;
+
+ /**
+ * The number of peers currently doing GET on our data
+ */
+ uint16_t nrefs;
+};
+
+
+/**
+ * An array of contexts. The size of this array should be equal to @a num_peers
+ */
+static struct Context *a_ctx;
+
+/**
+ * Array of active peers
+ */
+static struct ActiveContext *a_ac;
+
+/**
+ * The delay between starting to do PUTS and GETS
+ */
+static struct GNUNET_TIME_Relative delay;
+
+/**
+ * The timeout for GET and PUT
+ */
+static struct GNUNET_TIME_Relative timeout;
+
+/**
+ * Number of peers
+ */
+static unsigned int num_peers;
+
+/**
+ * Number of active peers
+ */
+static unsigned int n_active;
+
+/**
+ * Number of DHT service connections we currently have
+ */
+static unsigned int n_dht;
+
+/**
+ * Number of DHT PUTs made
+ */
+static unsigned int n_puts;
+
+/**
+ * Number of DHT PUTs succeeded
+ */
+static unsigned int n_puts_ok;
+
+/**
+ * Number of DHT PUTs failed
+ */
+static unsigned int n_puts_fail;
+
+/**
+ * Number of DHT GETs made
+ */
+static unsigned int n_gets;
+
+/**
+ * Number of DHT GETs succeeded
+ */
+static unsigned int n_gets_ok;
+
+/**
+ * Number of DHT GETs succeeded
+ */
+static unsigned int n_gets_fail;
+
+
+/**
+ * Shutdown task. Cleanup all resources and operations.
+ *
+ * @param cls NULL
+ * @param tc scheduler task context
+ */
+static void
+do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ActiveContext *ac;
+ unsigned int cnt;
+
+ if (NULL != a_ctx)
+ {
+ for (cnt=0; cnt < num_peers; cnt++)
+ {
+ if (NULL != a_ctx[cnt].op)
+ GNUNET_TESTBED_operation_done (a_ctx[cnt].op);
+
+ /* Cleanup active context if this peer is an active peer */
+ ac = a_ctx[cnt].ac;
+ if (NULL == ac)
+ continue;
+ if (GNUNET_SCHEDULER_NO_TASK != ac->delay_task)
+ GNUNET_SCHEDULER_cancel (ac->delay_task);
+ if (NULL != ac->put_data)
+ GNUNET_free (ac->put_data);
+ if (NULL != ac->dht_put)
+ GNUNET_DHT_put_cancel (ac->dht_put);
+ if (NULL != ac->dht_get)
+ GNUNET_DHT_get_stop (ac->dht_get);
+ }
+ GNUNET_free (a_ctx);
+ a_ctx = NULL;
+ }
+ GNUNET_free_non_null (a_ac);
+}
+
+
+static void
+summarize ()
+{
+ INFO ("# PUTS made: %u\n", n_puts);
+ INFO ("# PUTS succeeded: %u\n", n_puts_ok);
+ INFO ("# PUTS failed: %u\n", n_puts_fail);
+ INFO ("# GETS made: %u\n", n_gets);
+ INFO ("# GETS succeeded: %u\n", n_gets_ok);
+ INFO ("# GETS failed: %u\n", n_gets_fail);
+ GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Task to cancel DHT GET.
+ *
+ * @param cls NULL
+ * @param tc scheduler task context
+ */
+static void
+cancel_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ActiveContext *ac = cls;
+
+ ac->delay_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_assert (NULL != ac->dht_get);
+ GNUNET_DHT_get_stop (ac->dht_get);
+ ac->dht_get = NULL;
+ n_gets_fail++;
+
+ /* If profiling is complete, summarize */
+ if (n_gets == n_gets_fail + n_gets_ok)
+ summarize ();
+}
+
+
+/**
+ * Iterator called on each result obtained for a DHT
+ * operation that expects a reply
+ *
+ * @param cls closure
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param get_path peers on reply path (or NULL if not recorded)
+ * [0] = datastore's first neighbor, [length - 1] = local peer
+ * @param get_path_length number of entries in @a get_path
+ * @param put_path peers on the PUT path (or NULL if not recorded)
+ * [0] = origin, [length - 1] = datastore
+ * @param put_path_length number of entries in @a put_path
+ * @param type type of the result
+ * @param size number of bytes in @a data
+ * @param data pointer to the result data
+ */
+static void
+get_iter (void *cls,
+ struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode *key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
+ enum GNUNET_BLOCK_Type type,
+ size_t size, const void *data)
+{
+ struct ActiveContext *ac = cls;
+ struct ActiveContext *get_ac = ac->get_ac;
+
+ if (get_ac->put_data_size != size)
+ {
+ DEBUG ("Found a GET with incorrect data length (this may happen, but very unlikely)\n");
+ return;
+ }
+ if (0 != memcmp (data, get_ac->put_data, size))
+ {
+ DEBUG ("Found a GET with incorrect data (this may happen, but very unlikely)\n");
+ return;
+ }
+
+ /* we found the data we are looking for */
+ DEBUG ("We found a GET request; %u remaining\n", n_gets - (n_gets_fail + n_gets_ok));
+ n_gets_ok++;
+ get_ac->nrefs--;
+ GNUNET_DHT_get_stop (ac->dht_get);
+ ac->dht_get = NULL;
+ GNUNET_SCHEDULER_cancel (ac->delay_task);
+ ac->delay_task = GNUNET_SCHEDULER_NO_TASK;
+
+ /* Summarize if profiling is complete */
+ if (n_gets == n_gets_fail + n_gets_ok)
+ summarize ();
+}
+
+
+/**
+ * Task to do DHT GETs
+ *
+ * @param cls the active context
+ * @param tc the scheduler task context
+ */
+static void
+delayed_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ActiveContext *ac = cls;
+ struct ActiveContext *get_ac;
+ unsigned int r;
+
+ ac->delay_task = GNUNET_SCHEDULER_NO_TASK;
+ get_ac = NULL;
+ while (1)
+ {
+ r = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, n_active);
+ get_ac = &a_ac[r];
+ if (NULL != get_ac->put_data)
+ break;
+ }
+ get_ac->nrefs++;
+ ac->get_ac = get_ac;
+ ac->dht_get = GNUNET_DHT_get_start (ac->dht,
+ GNUNET_BLOCK_TYPE_TEST,
+ &ac->hash,
+ 1, /* replication level */
+ GNUNET_DHT_RO_NONE,
+ NULL, 0, /* extended query and size */
+ get_iter, ac); /* GET iterator and closure
+ */
+ n_gets++;
+
+ /* schedule the timeout task for GET */
+ ac->delay_task = GNUNET_SCHEDULER_add_delayed (timeout, &cancel_get, ac);
+}
+
+
+/**
+ * Queue up a delayed task for doing DHT GET
+ *
+ * @param cls the active context
+ * @param success #GNUNET_OK if the PUT was transmitted,
+ * #GNUNET_NO on timeout,
+ * #GNUNET_SYSERR on disconnect from service
+ * after the PUT message was transmitted
+ * (so we don't know if it was received or not)
+ */
+static void
+put_cont (void *cls, int success)
+{
+ struct ActiveContext *ac = cls;
+
+ ac->dht_put = NULL;
+ if (success)
+ n_puts_ok++;
+ else
+ n_puts_fail++;
+ ac->delay_task = GNUNET_SCHEDULER_add_delayed (delay, &delayed_get, ac);
+}
+
+
+/**
+ * Task to do DHT PUTS
+ *
+ * @param cls the active context
+ * @param tc the scheduler task context
+ */
+static void
+delayed_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ActiveContext *ac = cls;
+
+ ac->delay_task = GNUNET_SCHEDULER_NO_TASK;
+ /* Generate and DHT PUT some random data */
+ ac->put_data_size = 16; /* minimum */
+ ac->put_data_size += GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ (63*1024));
+ ac->put_data = GNUNET_malloc (ac->put_data_size);
+ GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+ ac->put_data, ac->put_data_size);
+ GNUNET_CRYPTO_hash (ac->put_data, ac->put_data_size, &ac->hash);
+ DEBUG ("Doing a DHT PUT with data of size %u\n", ac->put_data_size);
+ ac->dht_put = GNUNET_DHT_put (ac->dht, &ac->hash,
+ 1, /* replication level */
+ GNUNET_DHT_RO_NONE,
+ GNUNET_BLOCK_TYPE_TEST,
+ ac->put_data_size,
+ ac->put_data,
+ GNUNET_TIME_UNIT_FOREVER_ABS, /* expiration time */
+ timeout, /* PUT timeout */
+ put_cont, ac); /* continuation and its closure */
+ n_puts++;
+}
+
+
+/**
+ * Connection to DHT has been established. Call the delay task.
+ *
+ * @param cls the active context
+ * @param op the operation that has been finished
+ * @param ca_result the service handle returned from GNUNET_TESTBED_ConnectAdapter()
+ * @param emsg error message in case the operation has failed; will be NULL if
+ * operation has executed successfully.
+ */
+static void
+dht_connected (void *cls,
+ struct GNUNET_TESTBED_Operation *op,
+ void *ca_result,
+ const char *emsg)
+{
+ struct ActiveContext *ac = cls;
+ struct Context *ctx = ac->ctx;
+
+ GNUNET_assert (NULL != ctx);
+ GNUNET_assert (NULL != ctx->op);
+ GNUNET_assert (ctx->op == op);
+ ac->dht = (struct GNUNET_DHT_Handle *) ca_result;
+ if (NULL != emsg)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Connection to DHT service failed: %s\n", emsg);
+ GNUNET_TESTBED_operation_done (ctx->op); /* Calls dht_disconnect() */
+ ctx->op = NULL;
+ return;
+ }
+ ac->delay_task = GNUNET_SCHEDULER_add_delayed (delay, &delayed_put, ac);
+}
+
+
+/**
+ * Connect to DHT service and return the DHT client handler
+ *
+ * @param cls the active context
+ * @param cfg configuration of the peer to connect to; will be available until
+ * GNUNET_TESTBED_operation_done() is called on the operation returned
+ * from GNUNET_TESTBED_service_connect()
+ * @return service handle to return in 'op_result', NULL on error
+ */
+static void *
+dht_connect (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+ n_dht++;
+ return GNUNET_DHT_connect (cfg, 10);
+}
+
+
+/**
+ * Adapter function called to destroy a connection to
+ * a service.
+ *
+ * @param cls the active context
+ * @param op_result service handle returned from the connect adapter
+ */
+static void
+dht_disconnect (void *cls, void *op_result)
+{
+ struct ActiveContext *ac = cls;
+
+ GNUNET_assert (NULL != ac->dht);
+ GNUNET_assert (ac->dht == op_result);
+ GNUNET_DHT_disconnect (ac->dht);
+ n_dht--;
+ if (0 == n_dht)
+ GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Callback called when DHT service on the peer is started
+ *
+ * @param cls the context
+ * @param op the operation that has been finished
+ * @param emsg error message in case the operation has failed; will be NULL if
+ * operation has executed successfully.
+ */
+static void
+service_started (void *cls,
+ struct GNUNET_TESTBED_Operation *op,
+ const char *emsg)
+{
+ struct Context *ctx = cls;
+
+ GNUNET_assert (NULL != ctx);
+ GNUNET_assert (NULL != ctx->op);
+ GNUNET_TESTBED_operation_done (ctx->op);
+ ctx->op = NULL;
+ if (NULL == ctx->ac)
+ return;
+ /* FIXME: connect to the DHT service and wait before starting a PUT */
+ ctx->op = GNUNET_TESTBED_service_connect (ctx, ctx->peer,
+ "dht",
+ &dht_connected, ctx->ac,
+ &dht_connect,
+ &dht_disconnect,
+ ctx->ac);
+}
+
+
+/**
+ * Signature of a main function for a testcase.
+ *
+ * @param cls closure
+ * @param h the run handle
+ * @param num_peers number of peers in 'peers'
+ * @param peers handle to peers run in the testbed
+ * @param links_succeeded the number of overlay link connection attempts that
+ * succeeded
+ * @param links_failed the number of overlay link
+ */
+static void
+test_run (void *cls,
+ struct GNUNET_TESTBED_RunHandle *h,
+ unsigned int num_peers, struct GNUNET_TESTBED_Peer **peers,
+ unsigned int links_succeeded,
+ unsigned int links_failed)
+{
+ unsigned int cnt;
+ unsigned int ac_cnt;
+
+ if (NULL == peers)
+ {
+ /* exit */
+ GNUNET_assert (0);
+ }
+ INFO ("%u peers started\n", num_peers);
+ a_ctx = GNUNET_malloc (sizeof (struct Context) * num_peers);
+
+ /* select the peers which actively participate in profiling */
+ n_active = num_peers * PUT_PROBABILITY / 100;
+ if (0 == n_active)
+ {
+ GNUNET_SCHEDULER_shutdown ();
+ GNUNET_free (a_ctx);
+ return;
+ }
+ a_ac = GNUNET_malloc (n_active * sizeof (struct ActiveContext));
+ ac_cnt = 0;
+ for (cnt = 0; cnt < num_peers && ac_cnt < n_active; cnt++)
+ {
+ if (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 100) >=
+ PUT_PROBABILITY)
+ continue;
+ a_ctx[cnt].ac = &a_ac[ac_cnt];
+ a_ac[ac_cnt].ctx = &a_ctx[cnt];
+ ac_cnt++;
+ }
+ n_active = ac_cnt;
+ a_ac = GNUNET_realloc (a_ac, n_active * sizeof (struct ActiveContext));
+ INFO ("Active peers: %u\n", n_active);
+
+ /* start DHT service on all peers */
+ for (cnt = 0; cnt < num_peers; cnt++)
+ {
+ a_ctx[cnt].peer = peers[cnt];
+ a_ctx[cnt].op = GNUNET_TESTBED_peer_manage_service (&a_ctx[cnt],
+ peers[cnt],
+ "dht",
+ &service_started,
+ &a_ctx[cnt],
+ 1);
+ }
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param config configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *config)
+{
+ uint64_t event_mask;
+
+ if (0 == num_peers)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Exiting as the number of peers is %u\n"),
+ num_peers);
+ return;
+ }
+ cfg = GNUNET_CONFIGURATION_dup (config);
+ event_mask = 0;
+ GNUNET_TESTBED_run (hosts_file, cfg, num_peers, event_mask, NULL,
+ NULL, &test_run, NULL);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &do_shutdown,
+ NULL);
+}
+
+
+/**
+ * Main function.
+ *
+ * @return 0 on success
+ */
+int
+main (int argc, char *const *argv)
+{
+ int rc;
+
+ static struct GNUNET_GETOPT_CommandLineOption options[] = {
+ {'n', "peers", "COUNT",
+ gettext_noop ("number of peers to start"),
+ 1, &GNUNET_GETOPT_set_uint, &num_peers},
+ {'H', "hosts", "FILENAME",
+ gettext_noop ("name of the file with the login information for the testbed"),
+ 1, &GNUNET_GETOPT_set_string, &hosts_file},
+ {'d', "delay", "DELAY",
+ gettext_noop ("delay for starting DHT PUT and GET"),
+ 1, &GNUNET_GETOPT_set_relative_time, &delay},
+ {'t', "timeout", "TIMEOUT",
+ gettext_noop ("timeout for DHT PUT and GET requests"),
+ 1, &GNUNET_GETOPT_set_relative_time, &timeout},
+ GNUNET_GETOPT_OPTION_END
+ };
+
+ if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ return 2;
+ delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3); /* default delay */
+ timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3); /* default timeout */
+ rc = 0;
+ if (GNUNET_OK !=
+ GNUNET_PROGRAM_run (argc, argv, "dht-profiler",
+ gettext_noop
+ ("Measure quality and performance of the DHT service."),
+ options, &run, NULL))
+ rc = 1;
+ return rc;
+}