speedup.c File Reference

functions to speedup peer execution by manipulation system time More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "speedup.h"

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Macros
#define	LOG(kind, ...)   GNUNET_log_from (kind, "util-speedup", __VA_ARGS__)

Functions
static void	do_speedup (void *cls)
int	GNUNET_SPEEDUP_start_ (const struct GNUNET_CONFIGURATION_Handle *cfg)
	Start task that may speed up our system clock artificially. More...
void	GNUNET_SPEEDUP_stop_ ()
	Stop tasks that modify clock behavior. More...

Variables
static struct GNUNET_TIME_Relative	interval
static struct GNUNET_TIME_Relative	delta
static struct GNUNET_SCHEDULER_Task *	speedup_task

Detailed Description

functions to speedup peer execution by manipulation system time

Interface for speedup routinues.

Author

Matthias Wachs

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

Definition in file speedup.c.

Macro Definition Documentation

LOG

#define LOG	(		kind,
			...
	)		GNUNET_log_from (kind, "util-speedup", __VA_ARGS__)

Definition at line 30 of file speedup.c.

Referenced by do_speedup(), GNUNET_SPEEDUP_start_(), and GNUNET_SPEEDUP_stop_().

Function Documentation

do_speedup()

static void do_speedup ( void *  cls )

static

Definition at line 41 of file speedup.c.

References delta, GNUNET_ERROR_TYPE_DEBUG, GNUNET_NO, GNUNET_SCHEDULER_add_delayed(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_TIME_set_offset(), interval, LOG, and GNUNET_TIME_Relative::rel_value_us.

Referenced by GNUNET_SPEEDUP_start_().

{
  static long long current_offset;

  (void) cls;
  speedup_task = NULL;
  current_offset += delta.rel_value_us;
  GNUNET_TIME_set_offset (current_offset);
  LOG (GNUNET_ERROR_TYPE_DEBUG,
       "Speeding up execution time by %s\n",
       GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_NO));
  speedup_task = GNUNET_SCHEDULER_add_delayed (interval,
                                               &do_speedup,
                                               NULL);
}

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GNUNET_SPEEDUP_start_()

int GNUNET_SPEEDUP_start_

(

const struct GNUNET_CONFIGURATION_Handle *

cfg

)

Start task that may speed up our system clock artificially.

Parameters

cfg	configuration to use

Returns

GNUNET_OK on success, GNUNET_SYSERR if the speedup was not configured

Definition at line 65 of file speedup.c.

References delta, do_speedup(), GNUNET_assert, GNUNET_CONFIGURATION_get_value_time(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_NO, GNUNET_OK, GNUNET_SCHEDULER_add_now_with_lifeness(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_SYSERR, interval, LOG, and GNUNET_TIME_Relative::rel_value_us.

Referenced by program_main().

{
  GNUNET_assert (NULL == speedup_task);
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_get_value_time (cfg,
                                           "testing",
                                           "SPEEDUP_INTERVAL",
                                           &interval))
    return GNUNET_SYSERR;
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_get_value_time (cfg,
                                           "testing",
                                           "SPEEDUP_DELTA",
                                           &delta))
    return GNUNET_SYSERR;

  if ((0 == interval.rel_value_us) ||
      (0 == delta.rel_value_us))
  {
    LOG (GNUNET_ERROR_TYPE_DEBUG,
         "Speed up disabled\n");
    return GNUNET_OK;
  }
  LOG (GNUNET_ERROR_TYPE_DEBUG,
       "Speed up execution by %s\n",
       GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_NO));
  LOG (GNUNET_ERROR_TYPE_DEBUG,
       "Speed up executed every %s\n",
       GNUNET_STRINGS_relative_time_to_string (interval, GNUNET_NO));
  speedup_task = GNUNET_SCHEDULER_add_now_with_lifeness (GNUNET_NO,
                                                         &do_speedup,
                                                         NULL);
  return GNUNET_OK;
}

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GNUNET_SPEEDUP_stop_()

void GNUNET_SPEEDUP_stop_

(

void

)

Stop tasks that modify clock behavior.

Definition at line 105 of file speedup.c.

References delta, GNUNET_ERROR_TYPE_DEBUG, GNUNET_SCHEDULER_cancel(), interval, LOG, and GNUNET_TIME_Relative::rel_value_us.

Referenced by GNUNET_SERVICE_run_(), and shutdown_task().

{
  if (NULL != speedup_task)
  {
    GNUNET_SCHEDULER_cancel (speedup_task);
    speedup_task = NULL;
  }
  if ((0 != interval.rel_value_us) &&
      (0 != delta.rel_value_us))
    LOG (GNUNET_ERROR_TYPE_DEBUG,
         "Stopped execution speed up\n");
}

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Variable Documentation

interval

struct GNUNET_TIME_Relative interval

static

Definition at line 33 of file speedup.c.

Referenced by do_speedup(), GNUNET_SPEEDUP_start_(), GNUNET_SPEEDUP_stop_(), and libgnunet_plugin_transport_udp_init().

delta

struct GNUNET_TIME_Relative delta

static

Definition at line 35 of file speedup.c.

Referenced by add_setter_action(), adjust_running_peers(), churn_cb(), disk_utilization_change_cb(), do_speedup(), file_hash_task(), GCCH_handle_channel_plaintext_data(), GCCH_handle_channel_plaintext_data_ack(), GCPP_update_score(), GNUNET_MST_from_buffer(), GNUNET_PEER_change_rc(), GNUNET_SERVER_mst_receive(), GNUNET_SPEEDUP_start_(), GNUNET_SPEEDUP_stop_(), handle_client_recv_ok(), handle_set(), is_before(), main(), manage_service_wrapper(), mst_receive(), pick_random_dv_hops(), pong_handler(), send_get_known_results(), set_timetravel_time(), and solver_bandwidth_changed_cb().

speedup_task

struct GNUNET_SCHEDULER_Task* speedup_task

static

Definition at line 37 of file speedup.c.