GNUnet  0.11.x
Data Structures | Macros | Enumerations | Functions | Variables
gnunet_dht_profiler.c File Reference

Profiler for GNUnet DHT. More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testbed_service.h"
#include "gnunet_dht_service.h"
#include "gnunet_constants.h"
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Go to the source code of this file.

Data Structures

struct  Context
 Context to hold data of peer. More...
 
struct  ActiveContext
 Context for a peer which actively does DHT PUT/GET. More...
 

Macros

#define MESSAGE(...)   GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE, __VA_ARGS__)
 
#define DEBUG(...)   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
 

Enumerations

enum  { MODE_PUT = 0, MODE_GET = 1 }
 Should we do a PUT (mode = 0) or GET (mode = 1);. More...
 

Functions

static void start_profiling (void)
 Connect to DHT services of active peers. More...
 
static void do_shutdown (void *cls)
 Shutdown task. More...
 
static void bandwidth_stats_cont (void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
 Stats callback. More...
 
static int bandwidth_stats_iterator (void *cls, const struct GNUNET_TESTBED_Peer *peer, const char *subsystem, const char *name, uint64_t value, int is_persistent)
 Process statistic values. More...
 
static void summarize ()
 
static void cancel_get (void *cls)
 Task to cancel DHT GET. More...
 
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)
 Iterator called on each result obtained for a DHT operation that expects a reply. More...
 
static void delayed_get (void *cls)
 Task to do DHT GETs. More...
 
static void delayed_put (void *cls)
 Task to do DHT PUTs. More...
 
static void put_cont (void *cls)
 Conclude individual PUT operation, schedule the next one. More...
 
static void dht_connected (void *cls, struct GNUNET_TESTBED_Operation *op, void *ca_result, const char *emsg)
 Connection to DHT has been established. More...
 
static void * dht_connect (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Connect to DHT service and return the DHT client handler. More...
 
static void dht_disconnect (void *cls, void *op_result)
 Adapter function called to destroy a connection to a service. More...
 
static void service_started (void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
 Callback called when DHT service on the peer is started. More...
 
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)
 Signature of a main function for a testcase. More...
 
static void run (void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *config)
 Main function that will be run by the scheduler. More...
 
int main (int argc, char *const *argv)
 Main function. More...
 

Variables

static unsigned int put_probability = 100
 Number of peers which should perform a PUT out of 100 peers. More...
 
static const struct GNUNET_CONFIGURATION_Handlecfg
 Configuration. More...
 
static char * hosts_file
 Name of the file with the hosts to run the test over. More...
 
static struct Contexta_ctx
 An array of contexts. More...
 
static struct ActiveContexta_ac
 Array of active peers. More...
 
static struct GNUNET_TIME_Relative delay_stats
 The delay between rounds for collecting statistics. More...
 
static struct GNUNET_TIME_Relative delay_put
 The delay to start puts. More...
 
static struct GNUNET_TIME_Relative delay_get
 The delay to start puts. More...
 
static struct GNUNET_TIME_Relative timeout
 The timeout for GET and PUT. More...
 
static unsigned int num_peers
 Number of peers. More...
 
static unsigned int n_active
 Number of active peers. More...
 
static unsigned int n_dht
 Number of DHT service connections we currently have. More...
 
static unsigned long long n_puts
 Number of DHT PUTs made. More...
 
static unsigned int num_puts_per_peer = 1
 Number of DHT PUTs to be made per peer. More...
 
static unsigned long long n_puts_ok
 Number of DHT PUTs succeeded. More...
 
static unsigned int n_gets
 Number of DHT GETs made. More...
 
static unsigned int n_gets_ok
 Number of DHT GETs succeeded. More...
 
static unsigned int n_gets_fail
 Number of DHT GETs succeeded. More...
 
static unsigned int replication
 Replication degree. More...
 
static struct GNUNET_TESTBED_Operationbandwidth_stats_op
 Testbed Operation (to get stats). More...
 
static struct GNUNET_TESTBED_Peer ** testbed_handles
 Testbed peer handles. More...
 
static uint64_t outgoing_bandwidth
 Total number of messages sent by peer. More...
 
static uint64_t incoming_bandwidth
 Total number of messages received by peer. More...
 
static double average_put_path_length
 Average number of hops taken to do put. More...
 
static double average_get_path_length
 Average number of hops taken to do get. More...
 
static unsigned int total_put_path_length
 Total put path length across all peers. More...
 
static unsigned int total_get_path_length
 Total get path length across all peers. More...
 
static int peers_started = 0
 Counter to keep track of peers added to peer_context lists. More...
 
static enum { ... }  mode
 Should we do a PUT (mode = 0) or GET (mode = 1);. More...
 
static int in_shutdown = 0
 Are we shutting down. More...
 

Detailed Description

Profiler for GNUnet DHT.

Author
Sree Harsha Totakura sreeh.nosp@m.arsh.nosp@m.a@tot.nosp@m.akur.nosp@m.a.in

Definition in file gnunet_dht_profiler.c.

Macro Definition Documentation

◆ MESSAGE

#define MESSAGE (   ...)    GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE, __VA_ARGS__)

Definition at line 34 of file gnunet_dht_profiler.c.

Referenced by bandwidth_stats_cont(), summarize(), and test_run().

◆ DEBUG

#define DEBUG (   ...)    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Should we do a PUT (mode = 0) or GET (mode = 1);.

Enumerator
MODE_PUT 
MODE_GET 

Definition at line 263 of file gnunet_dht_profiler.c.

264 {
265  MODE_PUT = 0,
266 
267  MODE_GET = 1
268 } mode;
static enum @8 mode
Should we do a PUT (mode = 0) or GET (mode = 1);.

Function Documentation

◆ start_profiling()

static void start_profiling ( void  )
static

Connect to DHT services of active peers.

Definition at line 781 of file gnunet_dht_profiler.c.

References Context::ac, ctx, ActiveContext::ctx, DEBUG, dht_connect(), dht_connected(), dht_disconnect(), GNUNET_assert, GNUNET_break, GNUNET_TESTBED_service_connect(), GNUNET_YES, in_shutdown, n_active, Context::op, and Context::peer.

Referenced by dht_disconnect(), and service_started().

782 {
783  struct Context *ctx;
784 
785  DEBUG ("GNUNET_TESTBED_service_connect\n");
787  for (unsigned int i = 0; i < n_active; i++)
788  {
789  struct ActiveContext *ac = &a_ac[i];
790  GNUNET_assert (NULL != (ctx = ac->ctx));
791  GNUNET_assert (NULL == ctx->op);
793  ctx->peer,
794  "dht",
795  &dht_connected, ac,
796  &dht_connect,
798  ac);
799  }
800 }
Context to hold data of peer.
static void dht_disconnect(void *cls, void *op_result)
Adapter function called to destroy a connection to a service.
static void * dht_connect(void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
Connect to DHT service and return the DHT client handler.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
#define DEBUG(...)
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
struct GNUNET_TESTBED_Operation * GNUNET_TESTBED_service_connect(void *op_cls, struct GNUNET_TESTBED_Peer *peer, const char *service_name, GNUNET_TESTBED_ServiceConnectCompletionCallback cb, void *cb_cls, GNUNET_TESTBED_ConnectAdapter ca, GNUNET_TESTBED_DisconnectAdapter da, void *cada_cls)
Connect to a service offered by the given peer.
static unsigned int n_active
Number of active peers.
static void dht_connected(void *cls, struct GNUNET_TESTBED_Operation *op, void *ca_result, const char *emsg)
Connection to DHT has been established.
struct GNUNET_TESTBED_Peer * peer
The testbed peer this context belongs to.
struct Context * ctx
The linked peer context.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
static int in_shutdown
Are we shutting down.
#define GNUNET_YES
Definition: gnunet_common.h:77
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
static struct ActiveContext * a_ac
Array of active peers.
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◆ do_shutdown()

static void do_shutdown ( void *  cls)
static

Shutdown task.

Cleanup all resources and operations.

Parameters
clsNULL

Definition at line 290 of file gnunet_dht_profiler.c.

References Context::ac, ActiveContext::delay_task, ActiveContext::dht_get, ActiveContext::dht_put, GNUNET_DHT_get_stop(), GNUNET_DHT_put_cancel(), GNUNET_free, GNUNET_free_non_null, GNUNET_SCHEDULER_cancel(), GNUNET_TESTBED_operation_done(), GNUNET_YES, ActiveContext::hash, in_shutdown, num_peers, and Context::op.

Referenced by run().

291 {
292  struct ActiveContext *ac;
293 
295  if (NULL != a_ctx)
296  {
297  for (unsigned int cnt = 0; cnt < num_peers; cnt++)
298  {
299  /* Cleanup active context if this peer is an active peer */
300  ac = a_ctx[cnt].ac;
301  if (NULL != ac)
302  {
303  if (NULL != ac->delay_task)
305  if (NULL != ac->hash)
306  free (ac->hash);
307  if (NULL != ac->dht_put)
309  if (NULL != ac->dht_get)
311  }
312  /* Cleanup testbed operation handle at the last as this operation may
313  contain service connection to DHT */
314  if (NULL != a_ctx[cnt].op)
316  }
317  GNUNET_free (a_ctx);
318  a_ctx = NULL;
319  }
320  // FIXME: Should we collect stats only for put/get not for other messages.
321  if (NULL != bandwidth_stats_op)
322  {
324  bandwidth_stats_op = NULL;
325  }
327 }
void GNUNET_DHT_put_cancel(struct GNUNET_DHT_PutHandle *ph)
Cancels a DHT PUT operation.
Definition: dht_api.c:1035
static unsigned int num_peers
Number of peers.
struct GNUNET_HashCode * hash
The hashes of the values stored via this activity context.
Context for a peer which actively does DHT PUT/GET.
static struct Context * a_ctx
An array of contexts.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
struct ActiveContext * ac
Active context; NULL if this peer is not an active peer.
void GNUNET_DHT_get_stop(struct GNUNET_DHT_GetHandle *get_handle)
Stop async DHT-get.
Definition: dht_api.c:1155
static struct GNUNET_TESTBED_Operation * bandwidth_stats_op
Testbed Operation (to get stats).
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
static int in_shutdown
Are we shutting down.
struct GNUNET_DHT_GetHandle * dht_get
The get handle.
#define GNUNET_YES
Definition: gnunet_common.h:77
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_DHT_PutHandle * dht_put
The put handle.
static struct GNUNET_ARM_Operation * op
Current operation.
Definition: gnunet-arm.c:144
static struct ActiveContext * a_ac
Array of active peers.
#define GNUNET_free(ptr)
Wrapper around free.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:966
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◆ bandwidth_stats_cont()

static void bandwidth_stats_cont ( void *  cls,
struct GNUNET_TESTBED_Operation op,
const char *  emsg 
)
static

Stats callback.

Finish the stats testbed operation and when all stats have been iterated, shutdown the test.

Parameters
clsclosure
opthe operation that has been finished
emsgerror message in case the operation has failed; will be NULL if operation has executed successfully.

Definition at line 340 of file gnunet_dht_profiler.c.

References GNUNET_SCHEDULER_shutdown(), incoming_bandwidth, MESSAGE, and outgoing_bandwidth.

Referenced by summarize().

343 {
344  MESSAGE ("# Outgoing (core) bandwidth: %llu bytes\n",
345  (unsigned long long) outgoing_bandwidth);
346  MESSAGE ("# Incoming (core) bandwidth: %llu bytes\n",
347  (unsigned long long) incoming_bandwidth);
348  fprintf (stderr,
349  "Benchmark done. Collect data via gnunet-statistics, then press ENTER to exit.\n");
350  (void) getchar ();
352 }
static uint64_t incoming_bandwidth
Total number of messages received by peer.
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:526
static uint64_t outgoing_bandwidth
Total number of messages sent by peer.
#define MESSAGE(...)
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◆ bandwidth_stats_iterator()

static int bandwidth_stats_iterator ( void *  cls,
const struct GNUNET_TESTBED_Peer peer,
const char *  subsystem,
const char *  name,
uint64_t  value,
int  is_persistent 
)
static

Process statistic values.

Parameters
clsclosure
peerthe peer the statistic belong to
subsystemname of subsystem that created the statistic
namethe name of the datum
valuethe current value
is_persistentGNUNET_YES if the value is persistent, GNUNET_NO if not
Returns
GNUNET_OK to continue, GNUNET_SYSERR to abort iteration

Definition at line 367 of file gnunet_dht_profiler.c.

References GNUNET_OK, incoming_bandwidth, outgoing_bandwidth, and value.

Referenced by summarize().

373 {
374  static const char *s_sent = "# bytes encrypted";
375  static const char *s_recv = "# bytes decrypted";
376 
377  if (0 == strncmp (s_sent, name, strlen (s_sent)))
379  else if (0 == strncmp (s_recv, name, strlen (s_recv)))
381  return GNUNET_OK;
382 }
static uint64_t incoming_bandwidth
Total number of messages received by peer.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
static char * value
Value of the record to add/remove.
static uint64_t outgoing_bandwidth
Total number of messages sent by peer.
const char * name
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◆ summarize()

static void summarize ( )
static

Definition at line 386 of file gnunet_dht_profiler.c.

References average_get_path_length, average_put_path_length, bandwidth_stats_cont(), bandwidth_stats_iterator(), GNUNET_TESTBED_get_statistics(), MESSAGE, n_active, n_gets, n_gets_fail, n_gets_ok, n_puts, and n_puts_ok.

Referenced by cancel_get(), and get_iter().

387 {
388  MESSAGE ("# PUTS started: %llu\n",
389  n_puts);
390  MESSAGE ("# PUTS succeeded: %llu\n",
391  n_puts_ok);
392  MESSAGE ("# GETS made: %u\n",
393  n_gets);
394  MESSAGE ("# GETS succeeded: %u\n",
395  n_gets_ok);
396  MESSAGE ("# GETS failed: %u\n",
397  n_gets_fail);
398  MESSAGE ("# average_put_path_length: %f\n",
400  MESSAGE ("# average_get_path_length: %f\n",
402 
403  if (NULL == testbed_handles)
404  {
405  MESSAGE ("No peers found\n");
406  return;
407  }
408  /* Collect Stats*/
411  "core",
412  NULL,
415  NULL);
416 }
struct GNUNET_TESTBED_Operation * GNUNET_TESTBED_get_statistics(unsigned int num_peers, struct GNUNET_TESTBED_Peer **peers, const char *subsystem, const char *name, GNUNET_TESTBED_StatisticsIterator proc, GNUNET_TESTBED_OperationCompletionCallback cont, void *cls)
Convenience method that iterates over all (running) peers and retrieves all statistics from each peer...
static unsigned int n_gets_ok
Number of DHT GETs succeeded.
static void bandwidth_stats_cont(void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
Stats callback.
static int bandwidth_stats_iterator(void *cls, const struct GNUNET_TESTBED_Peer *peer, const char *subsystem, const char *name, uint64_t value, int is_persistent)
Process statistic values.
static unsigned int n_active
Number of active peers.
static double average_put_path_length
Average number of hops taken to do put.
static unsigned int n_gets
Number of DHT GETs made.
static struct GNUNET_TESTBED_Operation * bandwidth_stats_op
Testbed Operation (to get stats).
static unsigned long long n_puts
Number of DHT PUTs made.
static struct GNUNET_TESTBED_Peer ** testbed_handles
Testbed peer handles.
#define MESSAGE(...)
static unsigned long long n_puts_ok
Number of DHT PUTs succeeded.
static double average_get_path_length
Average number of hops taken to do get.
static unsigned int n_gets_fail
Number of DHT GETs succeeded.
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◆ cancel_get()

static void cancel_get ( void *  cls)
static

Task to cancel DHT GET.

Parameters
clsNULL

Definition at line 425 of file gnunet_dht_profiler.c.

References Context::ac, average_get_path_length, average_put_path_length, ctx, ActiveContext::ctx, ActiveContext::delay_task, ActiveContext::dht_get, GNUNET_assert, GNUNET_DHT_get_stop(), GNUNET_TESTBED_operation_done(), n_active, n_gets_fail, n_gets_ok, Context::op, summarize(), total_get_path_length, and total_put_path_length.

Referenced by delayed_get().

426 {
427  struct ActiveContext *ac = cls;
428  struct Context *ctx = ac->ctx;
429 
430  ac->delay_task = NULL;
431  GNUNET_assert (NULL != ac->dht_get);
433  ac->dht_get = NULL;
434  n_gets_fail++;
435  GNUNET_assert (NULL != ctx->op);
437  ctx->op = NULL;
438 
439  /* If profiling is complete, summarize */
440  if (n_active == n_gets_fail + n_gets_ok)
441  {
443  / (double) n_active;
445  / (double ) n_gets_ok;
446  summarize ();
447  }
448 }
Context to hold data of peer.
static unsigned int n_gets_ok
Number of DHT GETs succeeded.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
static unsigned int total_put_path_length
Total put path length across all peers.
static unsigned int n_active
Number of active peers.
static void summarize()
static double average_put_path_length
Average number of hops taken to do put.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
void GNUNET_DHT_get_stop(struct GNUNET_DHT_GetHandle *get_handle)
Stop async DHT-get.
Definition: dht_api.c:1155
struct Context * ctx
The linked peer context.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
struct GNUNET_DHT_GetHandle * dht_get
The get handle.
static double average_get_path_length
Average number of hops taken to do get.
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
static unsigned int n_gets_fail
Number of DHT GETs succeeded.
static unsigned int total_get_path_length
Total get path length across all peers.
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◆ get_iter()

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 
)
static

Iterator called on each result obtained for a DHT operation that expects a reply.

Parameters
clsclosure
expwhen will this value expire
keykey of the result
get_pathpeers on reply path (or NULL if not recorded) [0] = datastore's first neighbor, [length - 1] = local peer
get_path_lengthnumber of entries in get_path
put_pathpeers on the PUT path (or NULL if not recorded) [0] = origin, [length - 1] = datastore
put_path_lengthnumber of entries in put_path
typetype of the result
sizenumber of bytes in data
datapointer to the result data

Definition at line 469 of file gnunet_dht_profiler.c.

References Context::ac, average_get_path_length, average_put_path_length, ctx, ActiveContext::ctx, DEBUG, ActiveContext::delay_task, ActiveContext::dht_get, ActiveContext::get_ac, GNUNET_assert, GNUNET_DHT_get_stop(), GNUNET_SCHEDULER_cancel(), GNUNET_TESTBED_operation_done(), n_active, n_gets, n_gets_fail, n_gets_ok, ActiveContext::nrefs, Context::op, summarize(), total_get_path_length, and total_put_path_length.

Referenced by delayed_get().

478 {
479  struct ActiveContext *ac = cls;
480  struct ActiveContext *get_ac = ac->get_ac;
481  struct Context *ctx = ac->ctx;
482 
483  /* we found the data we are looking for */
484  DEBUG ("We found a GET request; %u remaining\n",
485  n_gets - (n_gets_fail + n_gets_ok)); // FIXME: It always prints 1.
486  n_gets_ok++;
487  get_ac->nrefs--;
489  ac->dht_get = NULL;
490  if (ac->delay_task != NULL)
492  ac->delay_task = NULL;
493  GNUNET_assert (NULL != ctx->op);
495  ctx->op = NULL;
496 
497  total_put_path_length = total_put_path_length + (double) put_path_length;
498  total_get_path_length = total_get_path_length + (double) get_path_length;
499  DEBUG ("total_put_path_length = %u,put_path \n",
501  /* Summarize if profiling is complete */
502  if (n_active == n_gets_fail + n_gets_ok)
503  {
505  / (double) n_active;
506  average_get_path_length = (double) total_get_path_length
507  / (double ) n_gets_ok;
508  summarize ();
509  }
510 }
Context to hold data of peer.
static unsigned int n_gets_ok
Number of DHT GETs succeeded.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
#define DEBUG(...)
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
static unsigned int total_put_path_length
Total put path length across all peers.
static unsigned int n_active
Number of active peers.
static void summarize()
static double average_put_path_length
Average number of hops taken to do put.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
void GNUNET_DHT_get_stop(struct GNUNET_DHT_GetHandle *get_handle)
Stop async DHT-get.
Definition: dht_api.c:1155
struct Context * ctx
The linked peer context.
static unsigned int n_gets
Number of DHT GETs made.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
uint16_t nrefs
The number of peers currently doing GET on our data.
struct ActiveContext * get_ac
The active context used for our DHT GET.
struct GNUNET_DHT_GetHandle * dht_get
The get handle.
static double average_get_path_length
Average number of hops taken to do get.
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
static unsigned int n_gets_fail
Number of DHT GETs succeeded.
static unsigned int total_get_path_length
Total get path length across all peers.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:966
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◆ delayed_get()

static void delayed_get ( void *  cls)
static

Task to do DHT GETs.

Parameters
clsthe active context

Definition at line 519 of file gnunet_dht_profiler.c.

References Context::ac, cancel_get(), DEBUG, ActiveContext::delay_task, delayed_put(), ActiveContext::dht, ActiveContext::dht_get, ActiveContext::get_ac, get_iter(), GNUNET_BLOCK_TYPE_TEST, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_DHT_get_start(), GNUNET_DHT_RO_NONE, GNUNET_h2s(), GNUNET_SCHEDULER_add_delayed(), ActiveContext::hash, n_active, n_gets, ActiveContext::nrefs, num_puts_per_peer, and timeout.

Referenced by dht_connected().

520 {
521  struct ActiveContext *ac = cls;
522  struct ActiveContext *get_ac;
523  unsigned int r;
524 
525  ac->delay_task = NULL;
526  get_ac = NULL;
527  while (1)
528  {
530  n_active);
531  get_ac = &a_ac[r];
532  if (NULL != get_ac->hash)
533  break;
534  }
535  get_ac->nrefs++;
536  ac->get_ac = get_ac;
539  DEBUG ("GET_REQUEST_START key %s \n",
540  GNUNET_h2s (&get_ac->hash[r]));
541  ac->dht_get = GNUNET_DHT_get_start (ac->dht,
543  &get_ac->hash[r],
544  1, /* replication level */
546  NULL,
547  0, /* extended query and size */
548  &get_iter,
549  ac); /* GET iterator and closure */
550  n_gets++;
551 
552  /* schedule the timeout task for GET */
554  &cancel_get,
555  ac);
556 }
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
struct GNUNET_HashCode * hash
The hashes of the values stored via this activity context.
Context for a peer which actively does DHT PUT/GET.
static unsigned int num_puts_per_peer
Number of DHT PUTs to be made per peer.
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)
Iterator called on each result obtained for a DHT operation that expects a reply. ...
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
#define DEBUG(...)
struct GNUNET_DHT_Handle * dht
Handler to the DHT service.
static unsigned int n_active
Number of active peers.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1253
static unsigned int n_gets
Number of DHT GETs made.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
static struct GNUNET_TIME_Relative timeout
The timeout for GET and PUT.
Block for testing.
uint16_t nrefs
The number of peers currently doing GET on our data.
struct GNUNET_DHT_GetHandle * GNUNET_DHT_get_start(struct GNUNET_DHT_Handle *handle, enum GNUNET_BLOCK_Type type, const struct GNUNET_HashCode *key, uint32_t desired_replication_level, enum GNUNET_DHT_RouteOption options, const void *xquery, size_t xquery_size, GNUNET_DHT_GetIterator iter, void *iter_cls)
Perform an asynchronous GET operation on the DHT identified.
Definition: dht_api.c:1067
struct ActiveContext * get_ac
The active context used for our DHT GET.
struct GNUNET_DHT_GetHandle * dht_get
The get handle.
static void cancel_get(void *cls)
Task to cancel DHT GET.
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
static struct ActiveContext * a_ac
Array of active peers.
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
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◆ delayed_put()

static void delayed_put ( void *  cls)
static

Task to do DHT PUTs.

If the "put_count" hits zero, we stop the TESTBED operation (connection to DHT) so that others PUTs have a chance.

Parameters
clsthe active context

Definition at line 596 of file gnunet_dht_profiler.c.

References Context::ac, ctx, ActiveContext::ctx, DEBUG, ActiveContext::delay_task, ActiveContext::dht, ActiveContext::dht_put, GNUNET_assert, GNUNET_BLOCK_TYPE_TEST, GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE, GNUNET_CRYPTO_hash(), GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_block(), GNUNET_CRYPTO_random_u32(), GNUNET_DHT_put(), GNUNET_DHT_RO_RECORD_ROUTE, GNUNET_h2s(), GNUNET_TESTBED_operation_done(), GNUNET_TIME_UNIT_FOREVER_ABS, ActiveContext::hash, n_puts, Context::op, put_cont(), ActiveContext::put_count, and replication.

Referenced by delayed_get(), dht_connected(), and put_cont().

597 {
598  struct ActiveContext *ac = cls;
599  char block[65536];
600  size_t block_size;
601 
602  ac->delay_task = NULL;
603  if (0 == ac->put_count)
604  {
605  struct Context *ctx = ac->ctx;
607 
608  GNUNET_assert (NULL != ctx);
609  op = ctx->op;
610  ctx->op = NULL;
612  return;
613  }
614 
615 
616  /* Generate and DHT PUT some random data */
617  block_size = 16; /* minimum */
618  /* make random payload, reserve 512 - 16 bytes for DHT headers */
621  - 512);
623  block,
624  block_size);
625  ac->put_count--;
626  GNUNET_CRYPTO_hash (block,
627  block_size,
628  &ac->hash[ac->put_count]);
629  DEBUG ("PUT_REQUEST_START key %s\n",
630  GNUNET_h2s (&ac->hash[ac->put_count]));
631  ac->dht_put = GNUNET_DHT_put (ac->dht,
632  &ac->hash[ac->put_count],
633  replication,
636  block_size,
637  block,
638  GNUNET_TIME_UNIT_FOREVER_ABS, /* expiration time */
639  &put_cont,
640  ac); /* continuation and its closure */
641  n_puts++;
642 }
Context to hold data of peer.
We should keep track of the route that the message took in the P2P network.
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
struct GNUNET_HashCode * hash
The hashes of the values stored via this activity context.
unsigned int put_count
How many puts should we still issue?
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
#define DEBUG(...)
static void put_cont(void *cls)
Conclude individual PUT operation, schedule the next one.
#define GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE
What is the maximum size for encrypted messages? Note that this number imposes a clear limit on the m...
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
Opaque handle to an abstract operation to be executed by the testing framework.
#define GNUNET_TIME_UNIT_FOREVER_ABS
Constant used to specify "forever".
struct GNUNET_DHT_Handle * dht
Handler to the DHT service.
static unsigned int replication
Replication degree.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:48
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
struct Context * ctx
The linked peer context.
struct GNUNET_DHT_PutHandle * GNUNET_DHT_put(struct GNUNET_DHT_Handle *handle, const struct GNUNET_HashCode *key, uint32_t desired_replication_level, enum GNUNET_DHT_RouteOption options, enum GNUNET_BLOCK_Type type, size_t size, const void *data, struct GNUNET_TIME_Absolute exp, GNUNET_SCHEDULER_TaskCallback cont, void *cont_cls)
Perform a PUT operation storing data in the DHT.
Definition: dht_api.c:966
static unsigned long long n_puts
Number of DHT PUTs made.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
Block for testing.
void GNUNET_CRYPTO_random_block(enum GNUNET_CRYPTO_Quality mode, void *buffer, size_t length)
Fill block with a random values.
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
struct GNUNET_DHT_PutHandle * dht_put
The put handle.
static struct GNUNET_ARM_Operation * op
Current operation.
Definition: gnunet-arm.c:144
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
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◆ put_cont()

static void put_cont ( void *  cls)
static

Conclude individual PUT operation, schedule the next one.

Parameters
clsthe active context

Definition at line 577 of file gnunet_dht_profiler.c.

References Context::ac, ActiveContext::delay_task, delayed_put(), ActiveContext::dht_put, GNUNET_SCHEDULER_add_now(), and n_puts_ok.

Referenced by delayed_put().

578 {
579  struct ActiveContext *ac = cls;
580 
581  ac->dht_put = NULL;
582  n_puts_ok++;
584  ac);
585 }
static void delayed_put(void *cls)
Task to do DHT PUTs.
Context for a peer which actively does DHT PUT/GET.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1280
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
static unsigned long long n_puts_ok
Number of DHT PUTs succeeded.
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_DHT_PutHandle * dht_put
The put handle.
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◆ dht_connected()

static void dht_connected ( void *  cls,
struct GNUNET_TESTBED_Operation op,
void *  ca_result,
const char *  emsg 
)
static

Connection to DHT has been established.

Call the delay task.

Parameters
clsthe active context
opthe operation that has been finished
ca_resultthe service handle returned from GNUNET_TESTBED_ConnectAdapter()
emsgerror message in case the operation has failed; will be NULL if operation has executed successfully.

Definition at line 655 of file gnunet_dht_profiler.c.

References Context::ac, ctx, ActiveContext::ctx, delay_get, delay_put, ActiveContext::delay_task, delayed_get(), delayed_put(), ActiveContext::dht, GNUNET_assert, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u64(), GNUNET_ERROR_TYPE_ERROR, GNUNET_log, GNUNET_log_strerror, GNUNET_SCHEDULER_add_delayed(), GNUNET_SCHEDULER_shutdown(), GNUNET_TESTBED_operation_done(), ActiveContext::hash, mode, MODE_GET, MODE_PUT, num_puts_per_peer, Context::op, ActiveContext::put_count, and GNUNET_TIME_Relative::rel_value_us.

Referenced by start_profiling().

659 {
660  struct ActiveContext *ac = cls;
661  struct Context *ctx = ac->ctx;
662 
663  GNUNET_assert (NULL != ctx); // FIXME: Fails
664  GNUNET_assert (NULL != ctx->op);
665  GNUNET_assert (ctx->op == op);
666  ac->dht = (struct GNUNET_DHT_Handle *) ca_result;
667  if (NULL != emsg)
668  {
670  "Connection to DHT service failed: %s\n",
671  emsg);
672  GNUNET_TESTBED_operation_done (ctx->op); /* Calls dht_disconnect() */
673  ctx->op = NULL;
674  return;
675  }
676  switch (mode)
677  {
678  case MODE_PUT:
679  {
680  struct GNUNET_TIME_Relative peer_delay_put;
681 
682  peer_delay_put.rel_value_us =
686  ac->hash = calloc (ac->put_count,
687  sizeof(struct GNUNET_HashCode));
688  if (NULL == ac->hash)
689  {
691  "calloc");
693  return;
694  }
695  ac->delay_task = GNUNET_SCHEDULER_add_delayed (peer_delay_put,
696  &delayed_put,
697  ac);
698  break;
699  }
700 
701  case MODE_GET:
702  {
703  struct GNUNET_TIME_Relative peer_delay_get;
704 
705  peer_delay_get.rel_value_us =
709  ac->delay_task = GNUNET_SCHEDULER_add_delayed (peer_delay_get,
710  &delayed_get,
711  ac);
712  break;
713  }
714  }
715 }
Context to hold data of peer.
static void delayed_put(void *cls)
Task to do DHT PUTs.
uint64_t rel_value_us
The actual value.
uint64_t GNUNET_CRYPTO_random_u64(enum GNUNET_CRYPTO_Quality mode, uint64_t max)
Random on unsigned 64-bit values.
struct GNUNET_HashCode * hash
The hashes of the values stored via this activity context.
unsigned int put_count
How many puts should we still issue?
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
static unsigned int num_puts_per_peer
Number of DHT PUTs to be made per peer.
static void delayed_get(void *cls)
Task to do DHT GETs.
static enum @8 mode
Should we do a PUT (mode = 0) or GET (mode = 1);.
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:526
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
Connection to the DHT service.
Definition: dht_api.c:201
struct GNUNET_DHT_Handle * dht
Handler to the DHT service.
#define GNUNET_log_strerror(level, cmd)
Log an error message at log-level &#39;level&#39; that indicates a failure of the command &#39;cmd&#39; with the mess...
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1253
static struct GNUNET_TIME_Relative delay_get
The delay to start puts.
static struct GNUNET_TIME_Relative delay_put
The delay to start puts.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
A 512-bit hashcode.
struct Context * ctx
The linked peer context.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
#define GNUNET_log(kind,...)
struct GNUNET_SCHEDULER_Task * delay_task
Delay task.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
Time for relative time used by GNUnet, in microseconds.
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◆ dht_connect()

static void* dht_connect ( void *  cls,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Connect to DHT service and return the DHT client handler.

Parameters
clsthe active context
cfgconfiguration 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()
Returns
service handle to return in 'op_result', NULL on error

Definition at line 728 of file gnunet_dht_profiler.c.

References GNUNET_DHT_connect(), and n_dht.

Referenced by start_profiling().

730 {
731  n_dht++;
732  return GNUNET_DHT_connect (cfg,
733  10);
734 }
static unsigned int n_dht
Number of DHT service connections we currently have.
struct GNUNET_DHT_Handle * GNUNET_DHT_connect(const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned int ht_len)
Initialize the connection with the DHT service.
Definition: dht_api.c:890
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◆ dht_disconnect()

static void dht_disconnect ( void *  cls,
void *  op_result 
)
static

Adapter function called to destroy a connection to a service.

Parameters
clsthe active context
op_resultservice handle returned from the connect adapter

Definition at line 745 of file gnunet_dht_profiler.c.

References Context::ac, ActiveContext::dht, GNUNET_assert, GNUNET_DHT_disconnect(), GNUNET_YES, in_shutdown, mode, MODE_GET, MODE_PUT, n_active, n_dht, n_gets_fail, n_gets_ok, n_puts_ok, num_puts_per_peer, and start_profiling().

Referenced by start_profiling().

747 {
748  struct ActiveContext *ac = cls;
749 
750  GNUNET_assert (NULL != ac->dht);
751  GNUNET_assert (ac->dht == op_result);
753  ac->dht = NULL;
754  n_dht--;
755  if (0 != n_dht)
756  return;
757  if (GNUNET_YES == in_shutdown)
758  return;
759  switch (mode)
760  {
761  case MODE_PUT:
762  if (n_puts_ok != ((unsigned long long) n_active) * num_puts_per_peer)
763  return;
764  /* Start GETs if all PUTs have been made */
765  mode = MODE_GET;
766  start_profiling ();
767  return;
768 
769  case MODE_GET:
770  if ((n_gets_ok + n_gets_fail) != n_active)
771  return;
772  break;
773  }
774 }
static unsigned int n_gets_ok
Number of DHT GETs succeeded.
static unsigned int n_dht
Number of DHT service connections we currently have.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
static int op_result(struct GNUNET_OP_Handle *h, uint64_t op_id, int64_t result_code, const void *data, uint16_t data_size, void **ctx, uint8_t cancel)
Remove an operation, and call its result callback (unless it was cancelled).
Definition: op.c:245
static unsigned int num_puts_per_peer
Number of DHT PUTs to be made per peer.
static enum @8 mode
Should we do a PUT (mode = 0) or GET (mode = 1);.
struct GNUNET_DHT_Handle * dht
Handler to the DHT service.
static unsigned int n_active
Number of active peers.
static struct GNUNET_MQ_Envelope * ac
Handle to current GNUNET_PEERINFO_add_peer() operation.
void GNUNET_DHT_disconnect(struct GNUNET_DHT_Handle *handle)
Shutdown connection with the DHT service.
Definition: dht_api.c:918
static int in_shutdown
Are we shutting down.
static void start_profiling(void)
Connect to DHT services of active peers.
static unsigned long long n_puts_ok
Number of DHT PUTs succeeded.
#define GNUNET_YES
Definition: gnunet_common.h:77
static unsigned int n_gets_fail
Number of DHT GETs succeeded.
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◆ service_started()

static void service_started ( void *  cls,
struct GNUNET_TESTBED_Operation op,
const char *  emsg 
)
static

Callback called when DHT service on the peer is started.

Parameters
clsthe context
opthe operation that has been finished
emsgerror message in case the operation has failed; will be NULL if operation has executed successfully.

Definition at line 812 of file gnunet_dht_profiler.c.

References ctx, DEBUG, GNUNET_assert, GNUNET_TESTBED_operation_done(), num_peers, Context::op, peers_started, and start_profiling().

Referenced by test_run().

815 {
816  struct Context *ctx = cls;
817 
818  GNUNET_assert (NULL != ctx);
819  GNUNET_assert (NULL != ctx->op);
821  ctx->op = NULL;
822  peers_started++;
823  DEBUG ("Peers Started = %d; num_peers = %d \n",
825  num_peers);
826  if (peers_started == num_peers)
827  start_profiling ();
828 }
Context to hold data of peer.
static unsigned int num_peers
Number of peers.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define DEBUG(...)
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
static void start_profiling(void)
Connect to DHT services of active peers.
static int peers_started
Counter to keep track of peers added to peer_context lists.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
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◆ test_run()

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 
)
static

Signature of a main function for a testcase.

Parameters
clsclosure
hthe run handle
num_peersnumber of peers in 'peers'
peershandle to peers run in the testbed
links_succeededthe number of overlay link connection attempts that succeeded
links_failedthe number of overlay link

Definition at line 843 of file gnunet_dht_profiler.c.

References Context::ac, ActiveContext::ctx, GNUNET_assert, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_free, GNUNET_new_array, GNUNET_SCHEDULER_shutdown(), GNUNET_TESTBED_peer_manage_service(), MESSAGE, n_active, num_peers, Context::op, Context::peer, peers, put_probability, and service_started().

Referenced by run().

849 {
850  unsigned int ac_cnt;
851 
853  if (NULL == peers)
854  {
855  /* exit */
856  GNUNET_assert (0);
857  }
858  MESSAGE ("%u peers started, %u/%u links up\n",
859  num_peers,
860  links_succeeded,
861  links_succeeded + links_failed);
863  struct Context);
864  /* select the peers which actively participate in profiling */
866  if (0 == n_active)
867  {
869  GNUNET_free (a_ctx);
870  a_ctx = NULL;
871  return;
872  }
873 
875  struct ActiveContext);
876  ac_cnt = 0;
877  for (unsigned int cnt = 0; cnt < num_peers && ac_cnt < n_active; cnt++)
878  {
880  100) >= put_probability)
881  continue;
882 
883  a_ctx[cnt].ac = &a_ac[ac_cnt];
884  a_ac[ac_cnt].ctx = &a_ctx[cnt];
885  ac_cnt++;
886  }
887  n_active = ac_cnt;
888 
889  /* start DHT service on all peers */
890  for (unsigned int cnt = 0; cnt < num_peers; cnt++)
891  {
892  a_ctx[cnt].peer = peers[cnt];
894  peers[cnt],
895  "dht",
897  &a_ctx[cnt],
898  1);
899  }
900 }
Context to hold data of peer.
static unsigned int put_probability
Number of peers which should perform a PUT out of 100 peers.
static unsigned int num_peers
Number of peers.
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Context for a peer which actively does DHT PUT/GET.
static struct Context * a_ctx
An array of contexts.
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:526
static void service_started(void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
Callback called when DHT service on the peer is started.
static unsigned int n_active
Number of active peers.
#define GNUNET_new_array(n, type)
Allocate a size n array with structs or unions of the given type.
struct ActiveContext * ac
Active context; NULL if this peer is not an active peer.
struct GNUNET_TESTBED_Peer * peer
The testbed peer this context belongs to.
struct Context * ctx
The linked peer context.
static struct GNUNET_TESTBED_Peer ** testbed_handles
Testbed peer handles.
#define MESSAGE(...)
static struct CadetPeer * peers
Operation to get peer ids.
struct GNUNET_TESTBED_Operation * op
Testbed operation acting on this peer.
struct GNUNET_TESTBED_Operation * GNUNET_TESTBED_peer_manage_service(void *op_cls, struct GNUNET_TESTBED_Peer *peer, const char *service_name, GNUNET_TESTBED_OperationCompletionCallback cb, void *cb_cls, unsigned int start)
Start or stop given service at a peer.
static struct ActiveContext * a_ac
Array of active peers.
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
#define GNUNET_free(ptr)
Wrapper around free.
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◆ run()

static void run ( void *  cls,
char *const *  args,
const char *  cfgfile,
const struct GNUNET_CONFIGURATION_Handle config 
)
static

Main function that will be run by the scheduler.

Parameters
clsclosure
argsremaining command-line arguments
cfgfilename of the configuration file used (for saving, can be NULL!)
configconfiguration

Definition at line 912 of file gnunet_dht_profiler.c.

References _, config, do_shutdown(), event_mask, GNUNET_ERROR_TYPE_ERROR, GNUNET_log, GNUNET_SCHEDULER_add_shutdown(), GNUNET_TESTBED_run(), hosts_file, num_peers, and test_run().

Referenced by main().

916 {
917  uint64_t event_mask;
918 
919  if (0 == num_peers)
920  {
922  _ ("Exiting as the number of peers is %u\n"),
923  num_peers);
924  return;
925  }
926  cfg = config;
927  event_mask = 0;
929  cfg,
930  num_peers,
931  event_mask,
932  NULL,
933  NULL,
934  &test_run,
935  NULL);
937  NULL);
938 }
static unsigned int num_peers
Number of peers.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_shutdown(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run on shutdown, that is when a CTRL-C signal is received, or when GNUNET_SCHEDULER_shutdown() is being invoked.
Definition: scheduler.c:1300
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
static const struct GNUNET_CONFIGURATION_Handle * config
void GNUNET_TESTBED_run(const char *host_filename, const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned int num_peers, uint64_t event_mask, GNUNET_TESTBED_ControllerCallback cc, void *cc_cls, GNUNET_TESTBED_TestMaster test_master, void *test_master_cls)
Convenience method for running a testbed with a single call.
uint64_t event_mask
Global event mask for all testbed events.
static const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration.
static char * hosts_file
Name of the file with the hosts to run the test over.
#define GNUNET_log(kind,...)
static void do_shutdown(void *cls)
Shutdown task.
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)
Signature of a main function for a testcase.
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◆ main()

int main ( int  argc,
char *const *  argv 
)

Main function.

Returns
0 on success

Definition at line 947 of file gnunet_dht_profiler.c.

References delay_get, delay_put, delay_stats, gettext_noop, GNUNET_GETOPT_OPTION_END, GNUNET_GETOPT_option_relative_time(), GNUNET_GETOPT_option_string(), GNUNET_GETOPT_option_uint(), GNUNET_OK, GNUNET_PROGRAM_run(), GNUNET_STRINGS_get_utf8_args(), GNUNET_TIME_relative_multiply(), GNUNET_TIME_UNIT_SECONDS, hosts_file, num_peers, num_puts_per_peer, put_probability, replication, run(), and timeout.

949 {
950  int rc;
953  "peers",
954  "COUNT",
955  gettext_noop ("number of peers to start"),
956  &num_peers),
958  "peer-put-count",
959  "COUNT",
960  gettext_noop (
961  "number of PUTs to perform per peer"),
964  "hosts",
965  "FILENAME",
966  gettext_noop (
967  "name of the file with the login information for the testbed"),
968  &hosts_file),
970  "delay",
971  "DELAY",
972  gettext_noop (
973  "delay between rounds for collecting statistics (default: 30 sec)"),
974  &delay_stats),
976  "PUT-delay",
977  "DELAY",
978  gettext_noop (
979  "delay to start doing PUTs (default: 1 sec)"),
980  &delay_put),
982  "GET-delay",
983  "DELAY",
984  gettext_noop (
985  "delay to start doing GETs (default: 5 min)"),
986  &delay_get),
988  "replication",
989  "DEGREE",
990  gettext_noop ("replication degree for DHT PUTs"),
991  &replication),
993  "random-chance",
994  "PROBABILITY",
995  gettext_noop (
996  "chance that a peer is selected at random for PUTs"),
997  &put_probability),
999  "timeout",
1000  "TIMEOUT",
1001  gettext_noop (
1002  "timeout for DHT PUT and GET requests (default: 1 min)"),
1003  &timeout),
1005  };
1006 
1007  if (GNUNET_OK !=
1008  GNUNET_STRINGS_get_utf8_args (argc, argv,
1009  &argc, &argv))
1010  return 2;
1011  /* set default delays */
1016  replication = 1; /* default replication */
1017  rc = 0;
1018  if (GNUNET_OK !=
1019  GNUNET_PROGRAM_run (argc,
1020  argv,
1021  "gnunet-dht-profiler",
1022  gettext_noop (
1023  "Measure quality and performance of the DHT service."),
1024  options,
1025  &run,
1026  NULL))
1027  rc = 1;
1028  return rc;
1029 }
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_option_relative_time(char shortName, const char *name, const char *argumentHelp, const char *description, struct GNUNET_TIME_Relative *val)
Allow user to specify a struct GNUNET_TIME_Relative (using human-readable "fancy" time)...
static unsigned int put_probability
Number of peers which should perform a PUT out of 100 peers.
struct GNUNET_GETOPT_CommandLineOption options[]
Definition: 002.c:5
static unsigned int num_peers
Number of peers.
int GNUNET_STRINGS_get_utf8_args(int argc, char *const *argv, int *u8argc, char *const **u8argv)
Returns utf-8 encoded arguments.
Definition: strings.c:1438
#define GNUNET_TIME_UNIT_SECONDS
One second.
static unsigned int num_puts_per_peer
Number of DHT PUTs to be made per peer.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
Definition of a command line option.
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_OPTION_END
Definition: 002.c:13
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_option_string(char shortName, const char *name, const char *argumentHelp, const char *description, char **str)
Allow user to specify a string.
static unsigned int replication
Replication degree.
static struct GNUNET_TIME_Relative delay_get
The delay to start puts.
static struct GNUNET_TIME_Relative delay_put
The delay to start puts.
struct GNUNET_TIME_Relative GNUNET_TIME_relative_multiply(struct GNUNET_TIME_Relative rel, unsigned long long factor)
Multiply relative time by a given factor.
Definition: time.c:442
static struct GNUNET_TIME_Relative timeout
The timeout for GET and PUT.
static char * hosts_file
Name of the file with the hosts to run the test over.
static struct GNUNET_TIME_Relative delay_stats
The delay between rounds for collecting statistics.
int GNUNET_PROGRAM_run(int argc, char *const *argv, const char *binaryName, const char *binaryHelp, const struct GNUNET_GETOPT_CommandLineOption *options, GNUNET_PROGRAM_Main task, void *task_cls)
Run a standard GNUnet command startup sequence (initialize loggers and configuration, parse options).
Definition: program.c:367
static void run(void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *config)
Main function that will be run by the scheduler.
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_option_uint(char shortName, const char *name, const char *argumentHelp, const char *description, unsigned int *val)
Allow user to specify an unsigned int.
#define gettext_noop(String)
Definition: gettext.h:69
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Variable Documentation

◆ put_probability

unsigned int put_probability = 100
static

Number of peers which should perform a PUT out of 100 peers.

Definition at line 43 of file gnunet_dht_profiler.c.

Referenced by main(), and test_run().

◆ cfg

const struct GNUNET_CONFIGURATION_Handle* cfg
static

Configuration.

Definition at line 48 of file gnunet_dht_profiler.c.

◆ hosts_file

char* hosts_file
static

Name of the file with the hosts to run the test over.

Definition at line 53 of file gnunet_dht_profiler.c.

Referenced by main(), and run().

◆ a_ctx

struct Context* a_ctx
static

An array of contexts.

The size of this array should be equal to num_peers

Definition at line 138 of file gnunet_dht_profiler.c.

◆ a_ac

struct ActiveContext* a_ac
static

Array of active peers.

Definition at line 143 of file gnunet_dht_profiler.c.

◆ delay_stats

struct GNUNET_TIME_Relative delay_stats
static

The delay between rounds for collecting statistics.

Definition at line 148 of file gnunet_dht_profiler.c.

Referenced by main().

◆ delay_put

struct GNUNET_TIME_Relative delay_put
static

The delay to start puts.

Definition at line 153 of file gnunet_dht_profiler.c.

Referenced by dht_connected(), and main().

◆ delay_get

struct GNUNET_TIME_Relative delay_get
static

The delay to start puts.

Definition at line 158 of file gnunet_dht_profiler.c.

Referenced by dht_connected(), and main().

◆ timeout

struct GNUNET_TIME_Relative timeout
static

The timeout for GET and PUT.

Definition at line 163 of file gnunet_dht_profiler.c.

Referenced by delayed_get(), and main().

◆ num_peers

unsigned int num_peers
static

Number of peers.

Definition at line 168 of file gnunet_dht_profiler.c.

Referenced by do_shutdown(), main(), run(), service_started(), and test_run().

◆ n_active

unsigned int n_active
static

Number of active peers.

Definition at line 173 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), delayed_get(), dht_disconnect(), get_iter(), start_profiling(), summarize(), and test_run().

◆ n_dht

unsigned int n_dht
static

Number of DHT service connections we currently have.

Definition at line 178 of file gnunet_dht_profiler.c.

Referenced by dht_connect(), and dht_disconnect().

◆ n_puts

unsigned long long n_puts
static

Number of DHT PUTs made.

Definition at line 183 of file gnunet_dht_profiler.c.

Referenced by delayed_put(), and summarize().

◆ num_puts_per_peer

unsigned int num_puts_per_peer = 1
static

Number of DHT PUTs to be made per peer.

Definition at line 188 of file gnunet_dht_profiler.c.

Referenced by delayed_get(), dht_connected(), dht_disconnect(), and main().

◆ n_puts_ok

unsigned long long n_puts_ok
static

Number of DHT PUTs succeeded.

Definition at line 193 of file gnunet_dht_profiler.c.

Referenced by dht_disconnect(), put_cont(), and summarize().

◆ n_gets

unsigned int n_gets
static

Number of DHT GETs made.

Definition at line 198 of file gnunet_dht_profiler.c.

Referenced by delayed_get(), get_iter(), and summarize().

◆ n_gets_ok

unsigned int n_gets_ok
static

Number of DHT GETs succeeded.

Definition at line 203 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), dht_disconnect(), get_iter(), and summarize().

◆ n_gets_fail

unsigned int n_gets_fail
static

Number of DHT GETs succeeded.

Definition at line 208 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), dht_disconnect(), get_iter(), and summarize().

◆ replication

unsigned int replication
static

Replication degree.

Definition at line 213 of file gnunet_dht_profiler.c.

Referenced by delayed_put(), and main().

◆ bandwidth_stats_op

struct GNUNET_TESTBED_Operation* bandwidth_stats_op
static

Testbed Operation (to get stats).

Definition at line 218 of file gnunet_dht_profiler.c.

◆ testbed_handles

struct GNUNET_TESTBED_Peer** testbed_handles
static

Testbed peer handles.

Definition at line 223 of file gnunet_dht_profiler.c.

◆ outgoing_bandwidth

uint64_t outgoing_bandwidth
static

Total number of messages sent by peer.

Definition at line 228 of file gnunet_dht_profiler.c.

Referenced by bandwidth_stats_cont(), and bandwidth_stats_iterator().

◆ incoming_bandwidth

uint64_t incoming_bandwidth
static

Total number of messages received by peer.

Definition at line 233 of file gnunet_dht_profiler.c.

Referenced by bandwidth_stats_cont(), and bandwidth_stats_iterator().

◆ average_put_path_length

double average_put_path_length
static

Average number of hops taken to do put.

Definition at line 238 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), get_iter(), and summarize().

◆ average_get_path_length

double average_get_path_length
static

Average number of hops taken to do get.

Definition at line 243 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), get_iter(), and summarize().

◆ total_put_path_length

unsigned int total_put_path_length
static

Total put path length across all peers.

Definition at line 248 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), and get_iter().

◆ total_get_path_length

unsigned int total_get_path_length
static

Total get path length across all peers.

Definition at line 253 of file gnunet_dht_profiler.c.

Referenced by cancel_get(), and get_iter().

◆ peers_started

int peers_started = 0
static

Counter to keep track of peers added to peer_context lists.

Definition at line 258 of file gnunet_dht_profiler.c.

Referenced by service_started().

◆ mode

enum { ... } mode

Should we do a PUT (mode = 0) or GET (mode = 1);.

Referenced by dht_connected(), dht_disconnect(), GNUNET_DISK_file_open(), GNUNET_DISK_fix_permissions(), and translate_unix_perms().

◆ in_shutdown

int in_shutdown = 0
static

Are we shutting down.

Definition at line 274 of file gnunet_dht_profiler.c.

Referenced by dht_disconnect(), do_shutdown(), and start_profiling().