/*
This file is part of GNUnet
- (C) 2012 Christian Grothoff (and other contributing authors)
+ (C) 2012, 2013 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
#ifndef GNUNET_NAMESTORE_PLUGIN_H
#define GNUNET_NAMESTORE_PLUGIN_H
-#include "gnunet_common.h"
#include "gnunet_util_lib.h"
#include "gnunet_namestore_service.h"
#endif
+/**
+ * Function called for matching blocks.
+ *
+ * @param cls closure
+ * @param block lookup result
+ */
+typedef void (*GNUNET_NAMESTORE_BlockCallback) (void *cls,
+ const struct GNUNET_NAMESTORE_Block *block);
+
+
/**
* Function called by for each matching record.
*
* @param cls closure
- * @param zone_key public key of the zone
- * @param expire when does the corresponding block in the DHT expire (until
- * when should we never do a DHT lookup for the same name again)?
- * @param name name that is being mapped (at most 255 characters long)
- * @param rd_count number of entries in 'rd' array
+ * @param zone_key private key of the zone
+ * @param label name that is being mapped (at most 255 characters long)
+ * @param rd_count number of entries in @a rd array
* @param rd array of records with data to store
- * @param signature signature of the record block, NULL if signature is unavailable (i.e.
- * because the user queried for a particular record type only)
*/
typedef void (*GNUNET_NAMESTORE_RecordIterator) (void *cls,
- const struct GNUNET_CRYPTO_EccPublicKey *zone_key,
- struct GNUNET_TIME_Absolute expire,
- const char *name,
- unsigned int rd_len,
- const struct GNUNET_NAMESTORE_RecordData *rd,
- const struct GNUNET_CRYPTO_EccSignature *signature);
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *private_key,
+ const char *label,
+ unsigned int rd_count,
+ const struct GNUNET_NAMESTORE_RecordData *rd);
/**
void *cls;
/**
- * Store a record in the datastore. Removes any existing record in the
- * same zone with the same name.
+ * Cache a block in the datastore. Overwrites existing blocks
+ * for the same zone and label.
*
* @param cls closure (internal context for the plugin)
- * @param zone_key public key of the zone
- * @param expire when does the corresponding block in the DHT expire (until
- * when should we never do a DHT lookup for the same name again)?
- * @param name name that is being mapped (at most 255 characters long)
- * @param rd_count number of entries in 'rd' array
- * @param rd array of records with data to store
- * @param signature signature of the record block, NULL if signature is unavailable (i.e.
- * because the user queried for a particular record type only)
- * @return GNUNET_OK on success, else GNUNET_SYSERR
+ * @param block block to cache
+ * @return #GNUNET_OK on success, else #GNUNET_SYSERR
*/
- int (*put_records) (void *cls,
- const struct GNUNET_CRYPTO_EccPublicKey *zone_key,
- struct GNUNET_TIME_Absolute expire,
- const char *name,
- unsigned int rd_len,
- const struct GNUNET_NAMESTORE_RecordData *rd,
- const struct GNUNET_CRYPTO_EccSignature *signature);
+ int (*cache_block) (void *cls,
+ const struct GNUNET_NAMESTORE_Block *block);
/**
- * Removes any existing record in the given zone with the same name.
+ * Get the block for a particular zone and label in the
+ * datastore. Will return at most one result to the iterator.
*
* @param cls closure (internal context for the plugin)
- * @param zone hash of the public key of the zone
- * @param name name to remove (at most 255 characters long)
- * @return GNUNET_OK on success
+ * @param query hash of public key derived from the zone and the label
+ * @param iter function to call with the result
+ * @param iter_cls closure for @a iter
+ * @return #GNUNET_OK on success, #GNUNET_NO if there were no results, #GNUNET_SYSERR on error
*/
- int (*remove_records) (void *cls,
- const struct GNUNET_CRYPTO_ShortHashCode *zone,
- const char *name);
+ int (*lookup_block) (void *cls,
+ const struct GNUNET_HashCode *query,
+ GNUNET_NAMESTORE_BlockCallback iter, void *iter_cls);
+
/**
- * Iterate over the results for a particular key and zone in the
+ * Store a record in the datastore for which we are the authority.
+ * Removes any existing record in the same zone with the same name.
+ *
+ * @param cls closure (internal context for the plugin)
+ * @param zone private key of the zone
+ * @param label name of the record in the zone
+ * @param rd_count number of entries in @a rd array, 0 to delete all records
+ * @param rd array of records with data to store
+ * @return #GNUNET_OK on success, else #GNUNET_SYSERR
+ */
+ int (*store_records) (void *cls,
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
+ const char *label,
+ unsigned int rd_count,
+ const struct GNUNET_NAMESTORE_RecordData *rd);
+
+
+ /**
+ * Iterate over the results for a particular zone in the
* datastore. Will return at most one result to the iterator.
*
* @param cls closure (internal context for the plugin)
- * @param zone hash of public key of the zone, NULL to iterate over all zones
- * @param name name as '\0' terminated string, NULL to iterate over all records of the zone
+ * @param zone private key of the zone, NULL for all zones
* @param offset offset in the list of all matching records
* @param iter function to call with the result
- * @param iter_cls closure for iter
- * @return GNUNET_OK on success, GNUNET_NO if there were no results, GNUNET_SYSERR on error
- * 'iter' will have been called unless the return value is 'GNUNET_SYSERR'
+ * @param iter_cls closure for @a iter
+ * @return #GNUNET_OK on success, #GNUNET_NO if there were no results, #GNUNET_SYSERR on error
*/
- int (*iterate_records) (void *cls,
- const struct GNUNET_CRYPTO_ShortHashCode *zone,
- const char *name,
+ int (*iterate_records) (void *cls,
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
uint64_t offset,
GNUNET_NAMESTORE_RecordIterator iter, void *iter_cls);
* Returns at most one result to the iterator.
*
* @param cls closure (internal context for the plugin)
- * @param zone hash of public key of the zone to look up in, never NULL
- * @param value_zone hash of the public key of the target zone (value), never NULL
+ * @param zone private key of the zone to look up in, never NULL
+ * @param value_zone public key of the target zone (value), never NULL
* @param iter function to call with the result
- * @param iter_cls closure for iter
- * @return GNUNET_OK on success, GNUNET_NO if there were no results, GNUNET_SYSERR on error
- * 'iter' will have been called unless the return value is 'GNUNET_SYSERR'
+ * @param iter_cls closure for @a iter
+ * @return #GNUNET_OK on success, #GNUNET_NO if there were no results, #GNUNET_SYSERR on error
*/
- int (*zone_to_name) (void *cls,
- const struct GNUNET_CRYPTO_ShortHashCode *zone,
- const struct GNUNET_CRYPTO_ShortHashCode *value_zone,
+ int (*zone_to_name) (void *cls,
+ const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
+ const struct GNUNET_CRYPTO_EcdsaPublicKey *value_zone,
GNUNET_NAMESTORE_RecordIterator iter, void *iter_cls);
- /**
- * Delete an entire zone (all records). Not used in normal operation.
- *
- * @param cls closure (internal context for the plugin)
- * @param zone zone to delete
- */
- void (*delete_zone) (void *cls,
- const struct GNUNET_CRYPTO_ShortHashCode *zone);
-
-
};