gnunet-service-ats_normalization.h File Reference

ats service address: management of ATS properties and preferences normalization More...

#include "gnunet_ats_service.h"

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Macros
#define	DEFAULT_REL_QUALITY   1.0
	Value we return for a normalized quality score if we have no data. More...

Functions
void	GAS_normalization_update_property (struct ATS_Address *address)
	Update and normalize a prop performance information. More...
void	GAS_normalization_start (void)
	Start the normalization component. More...
void	GAS_normalization_stop (void)
	Stop the normalization component and free all items. More...

Detailed Description

ats service address: management of ATS properties and preferences normalization

Author

Matthias Wachs

Christian Grothoff

Definition in file gnunet-service-ats_normalization.h.

Macro Definition Documentation

DEFAULT_REL_QUALITY

#define DEFAULT_REL_QUALITY   1.0

Value we return for a normalized quality score if we have no data.

Definition at line 34 of file gnunet-service-ats_normalization.h.

Function Documentation

GAS_normalization_update_property()

void GAS_normalization_update_property

(

struct ATS_Address *

address

)

Update and normalize a prop performance information.

Parameters

address

the address to update

Update and normalize a prop performance information.

Parameters

address

the address to update

Definition at line 231 of file gnunet-service-ats_normalization.c.

{
  const struct GNUNET_ATS_Properties *prop = &address->properties;
  struct PropertyRange range;
 
  LOG (GNUNET_ERROR_TYPE_DEBUG,
       "Updating properties for peer `%s'\n",
       GNUNET_i2s (&address->peer));
  GAS_plugin_solver_lock ();
  update_avg (prop->delay.rel_value_us,
              &address->norm_delay);
  update_avg (prop->distance,
              &address->norm_distance);
  update_avg (prop->utilization_in,
              &address->norm_utilization_in);
  update_avg (prop->utilization_in,
              &address->norm_utilization_out);
 
  init_range (&range);
  GNUNET_CONTAINER_multipeermap_iterate (GSA_addresses,
                                         &find_min_max_it,
                                         &range);
  if (0 != GNUNET_memcmp (&range,
                          &property_range))
  {
    /* limits changed, (re)normalize all addresses */
    property_range = range;
    GNUNET_CONTAINER_multipeermap_iterate (GSA_addresses,
                                           &normalize_address,
                                           NULL);
    GNUNET_CONTAINER_multipeermap_iterate (GSA_addresses,
                                           &notify_change,
                                           NULL);
  }
  else
  {
    /* renormalize just this one address */
    normalize_address (NULL,
                       &address->peer,
                       address);
    notify_change (NULL,
                   &address->peer,
                   address);
  }
  GAS_plugin_solver_unlock ();
}

References address, GNUNET_ATS_Properties::delay, GNUNET_ATS_Properties::distance, find_min_max_it(), GAS_plugin_solver_lock(), GAS_plugin_solver_unlock(), GNUNET_CONTAINER_multipeermap_iterate(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_i2s(), GNUNET_memcmp, GSA_addresses, init_range(), LOG, normalize_address(), notify_change(), property_range, GNUNET_TIME_Relative::rel_value_us, update_avg(), and GNUNET_ATS_Properties::utilization_in.

Referenced by GAS_addresses_add(), GAS_addresses_update(), and set_prop_task().

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GAS_normalization_start()

void GAS_normalization_start

(

void

)

Start the normalization component.

Definition at line 283 of file gnunet-service-ats_normalization.c.

{
  init_range (&property_range);
}

References init_range(), and property_range.

Referenced by GNUNET_ATS_solvers_solver_start(), and run().

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GAS_normalization_stop()

void GAS_normalization_stop

(

void

)

Stop the normalization component and free all items.

Definition at line 293 of file gnunet-service-ats_normalization.c.

{
  /* nothing to do */
}

Referenced by cleanup_task(), GNUNET_ATS_solvers_solver_stop(), and run().

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