Each plugin is required to return a pointer to a struct of this type as the return value from its entry point. More...

#include <gnunet_datastore_plugin.h>

Collaboration diagram for GNUNET_DATASTORE_PluginFunctions:

Data Fields
void *	cls
	Closure to use for all of the following callbacks (except "next_request").

PluginEstimateSize	estimate_size
	Calculate the current on-disk size of the SQ store.

PluginPut	put
	Function to store an item in the datastore.

PluginGetKey	get_key
	Get a particular datum matching a given hash from the datastore.

PluginGetType	get_zero_anonymity
	Get datum (of the specified type) with anonymity level zero.

PluginGetRandom	get_replication
	Function to get a random item with high replication score from the database, lowering the item's replication score.

PluginGetRandom	get_expiration
	Function to get a random expired item or, if none are expired, either the oldest entry or one with a low priority (depending on what was efficiently implementable).

PluginDrop	drop
	Delete the database.

PluginGetKeys	get_keys
	Iterate over all keys in the database.

PluginRemoveKey	remove_key
	Function to remove an item from the database.

Detailed Description

Each plugin is required to return a pointer to a struct of this type as the return value from its entry point.

Definition at line 319 of file gnunet_datastore_plugin.h.

Field Documentation

◆ cls

void* GNUNET_DATASTORE_PluginFunctions::cls

Closure to use for all of the following callbacks (except "next_request").

Definition at line 325 of file gnunet_datastore_plugin.h.

Referenced by cleaning_task(), delete_expired(), disk_utilization_change_cb(), handle_get(), handle_get_key(), handle_get_replication(), handle_get_zero_anonymity(), handle_put(), handle_remove(), libgnunet_plugin_datastore_heap_done(), libgnunet_plugin_datastore_postgres_done(), libgnunet_plugin_datastore_sqlite_done(), libgnunet_plugin_datastore_sqlite_init(), libgnunet_plugin_datastore_template_done(), manage_space(), and process_stat_done().

◆ estimate_size

PluginEstimateSize GNUNET_DATASTORE_PluginFunctions::estimate_size

Calculate the current on-disk size of the SQ store.

Estimates are fine, if that's the only thing available.

Definition at line 331 of file gnunet_datastore_plugin.h.

Referenced by disk_utilization_change_cb(), libgnunet_plugin_datastore_sqlite_init(), and process_stat_done().

◆ put

PluginPut GNUNET_DATASTORE_PluginFunctions::put

Function to store an item in the datastore.

Definition at line 336 of file gnunet_datastore_plugin.h.

Referenced by handle_put(), and libgnunet_plugin_datastore_sqlite_init().

◆ get_key

PluginGetKey GNUNET_DATASTORE_PluginFunctions::get_key

Get a particular datum matching a given hash from the datastore.

Definition at line 341 of file gnunet_datastore_plugin.h.

Referenced by handle_get(), handle_get_key(), and libgnunet_plugin_datastore_sqlite_init().

◆ get_zero_anonymity

PluginGetType GNUNET_DATASTORE_PluginFunctions::get_zero_anonymity

Get datum (of the specified type) with anonymity level zero.

Definition at line 346 of file gnunet_datastore_plugin.h.

Referenced by handle_get_zero_anonymity(), and libgnunet_plugin_datastore_sqlite_init().

◆ get_replication

PluginGetRandom GNUNET_DATASTORE_PluginFunctions::get_replication

Function to get a random item with high replication score from the database, lowering the item's replication score.

Returns a single random item from those with the highest replication counters. The item's replication counter is decremented by one IF it was positive before.

Definition at line 355 of file gnunet_datastore_plugin.h.

Referenced by handle_get_replication(), and libgnunet_plugin_datastore_sqlite_init().

◆ get_expiration

PluginGetRandom GNUNET_DATASTORE_PluginFunctions::get_expiration

Function to get a random expired item or, if none are expired, either the oldest entry or one with a low priority (depending on what was efficiently implementable).

Definition at line 362 of file gnunet_datastore_plugin.h.

Referenced by delete_expired(), libgnunet_plugin_datastore_sqlite_init(), and manage_space().