major rename-fest for more constent symbol names

1 files changed, 0 insertions, 1029 deletions

diff --git a/src/mint/taler_mintdb_plugin.h b/src/mint/taler_mintdb_plugin.h
deleted file mode 100644
index 4d74b88db..000000000
--- a/src/mint/taler_mintdb_plugin.h
+++ /dev/null
@@ -1,1029 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 Christian Grothoff (and other contributing authors)
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/taler_mintdb_plugin.h
- * @brief Low-level (statement-level) database access for the mint
- * @author Florian Dold
- * @author Christian Grothoff
- */
-#ifndef TALER_MINTDB_PLUGIN_H
-#define TALER_MINTDB_PLUGIN_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_util.h"
-
-
-/**
- * Information we keep on bank transfer(s) that established a reserve.
- */
-struct BankTransfer
-{
-
-  /**
-   * Public key of the reserve that was filled.
-   */
-  struct TALER_ReservePublicKey reserve_pub;
-
-  /**
-   * Amount that was transferred to the mint.
-   */
-  struct TALER_Amount amount;
-
-  /**
-   * Detailed wire information about the transaction.
-   */
-  json_t *wire;
-
-};
-
-
-/**
- * A summary of a Reserve
- */
-struct Reserve
-{
-  /**
-   * The reserve's public key.  This uniquely identifies the reserve
-   */
-  struct TALER_ReservePublicKey pub;
-
-  /**
-   * The balance amount existing in the reserve
-   */
-  struct TALER_Amount balance;
-
-  /**
-   * The expiration date of this reserve
-   */
-  struct GNUNET_TIME_Absolute expiry;
-};
-
-
-/**
- * Information we keep for a withdrawn coin to reproduce
- * the /withdraw operation if needed, and to have proof
- * that a reserve was drained by this amount.
- */
-struct CollectableBlindcoin
-{
-
-  /**
-   * Our signature over the (blinded) coin.
-   */
-  struct TALER_DenominationSignature sig;
-
-  /**
-   * Denomination key (which coin was generated).
-   * FIXME: we should probably instead have the
-   * AMOUNT *including* fee in what is being signed
-   * as well!
-   */
-  struct TALER_DenominationPublicKey denom_pub;
-
-  /**
-   * Public key of the reserve that was drained.
-   */
-  struct TALER_ReservePublicKey reserve_pub;
-
-  /**
-   * Hash over the blinded message, needed to verify
-   * the @e reserve_sig.
-   */
-  struct GNUNET_HashCode h_coin_envelope;
-
-  /**
-   * Signature confirming the withdrawl, matching @e reserve_pub,
-   * @e denom_pub and @e h_coin_envelope.
-   */
-  struct TALER_ReserveSignature reserve_sig;
-};
-
-
-
-/**
- * Types of operations on a reserved.
- */
-enum TALER_MINT_DB_ReserveOperation
-{
-  /**
-   * Money was deposited into the reserve via a bank transfer.
-   */
-  TALER_MINT_DB_RO_BANK_TO_MINT = 0,
-
-  /**
-   * A Coin was withdrawn from the reserve using /withdraw.
-   */
-  TALER_MINT_DB_RO_WITHDRAW_COIN = 1
-};
-
-
-/**
- * Reserve history as a linked list.  Lists all of the transactions
- * associated with this reserve (such as the bank transfers that
- * established the reserve and all /withdraw operations we have done
- * since).
- */
-struct ReserveHistory
-{
-
-  /**
-   * Next entry in the reserve history.
-   */
-  struct ReserveHistory *next;
-
-  /**
-   * Type of the event, determins @e details.
-   */
-  enum TALER_MINT_DB_ReserveOperation type;
-
-  /**
-   * Details of the operation, depending on @e type.
-   */
-  union
-  {
-
-    /**
-     * Details about a bank transfer to the mint.
-     */
-    struct BankTransfer *bank;
-
-    /**
-     * Details about a /withdraw operation.
-     */
-    struct CollectableBlindcoin *withdraw;
-
-  } details;
-
-};
-
-
-/**
- * Specification for a /deposit operation.
- */
-struct Deposit
-{
-  /**
-   * Information about the coin that is being deposited.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * ECDSA signature affirming that the customer intends
-   * this coin to be deposited at the merchant identified
-   * by @e h_wire in relation to the contract identified
-   * by @e h_contract.
-   */
-  struct TALER_CoinSpendSignature csig;
-
-  /**
-   * Public key of the merchant.  Enables later identification
-   * of the merchant in case of a need to rollback transactions.
-   */
-  struct TALER_MerchantPublicKey merchant_pub;
-
-  /**
-   * Hash over the contract between merchant and customer
-   * (remains unknown to the Mint).
-   */
-  struct GNUNET_HashCode h_contract;
-
-  /**
-   * Hash of the (canonical) representation of @e wire, used
-   * to check the signature on the request.  Generated by
-   * the mint from the detailed wire data provided by the
-   * merchant.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * Detailed wire information for executing the transaction.
-   */
-  json_t *wire;
-
-  /**
-   * Merchant-generated transaction ID to detect duplicate
-   * transactions.
-   */
-  uint64_t transaction_id;
-
-  /**
-   * Fraction of the coin's remaining value to be deposited, including
-   * depositing fee (if any).  The coin is identified by @e coin_pub.
-   */
-  struct TALER_Amount amount_with_fee;
-
-};
-
-
-/**
- * Global information for a refreshing session.  Includes
- * dimensions of the operation, security parameters and
- * client signatures from "/refresh/melt" and "/refresh/commit".
- */
-struct RefreshSession
-{
-
-  /**
-   * Number of coins we are melting.
-   */
-  uint16_t num_oldcoins;
-
-  /**
-   * Number of new coins we are creating.
-   */
-  uint16_t num_newcoins;
-
-  /**
-   * Index (smaller #KAPPA) which the mint has chosen to not
-   * have revealed during cut and choose.
-   */
-  uint16_t noreveal_index;
-
-};
-
-
-/**
- * Specification for coin in a /refresh/melt operation.
- */
-struct RefreshMelt
-{
-  /**
-   * Information about the coin that is being melted.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * Signature over the melting operation.
-   */
-  struct TALER_CoinSpendSignature coin_sig;
-
-  /**
-   * Hash of the refresh session this coin is melted into.
-   */
-  struct GNUNET_HashCode session_hash;
-
-  /**
-   * How much value is being melted?  This amount includes the fees,
-   * so the final amount contributed to the melt is this value minus
-   * the fee for melting the coin.  We include the fee in what is
-   * being signed so that we can verify a reserve's remaining total
-   * balance without needing to access the respective denomination key
-   * information each time.
-   */
-  struct TALER_Amount amount_with_fee;
-
-};
-
-
-/**
- * We have as many `struct RefreshCommitCoin` as there are new
- * coins being created by the refresh (for each of the #KAPPA
- * sets).  These are the coins we ask the mint to sign if the
- * respective set is selected.
- */
-struct RefreshCommitCoin
-{
-
-  /**
-   * Encrypted data allowing those able to decrypt it to derive
-   * the private keys of the new coins created by the refresh.
-   */
-  struct TALER_RefreshLinkEncrypted *refresh_link;
-
-  /**
-   * Blinded message to be signed (in envelope), with @e coin_env_size bytes.
-   */
-  char *coin_ev;
-
-  /**
-   * Number of bytes in @e coin_ev.
-   */
-  size_t coin_ev_size;
-
-};
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * For each (old) coin being melted, we have a `struct
- * RefreshCommitLink` that allows the user to find the shared secret
- * to decrypt the respective refresh links for the new coins in the
- * `struct RefreshCommitCoin`.
- */
-struct RefreshCommitLink
-{
-  /**
-   * Transfer public key, used to decrypt the @e shared_secret_enc
-   * in combintation with the corresponding private key of the
-   * coin.
-   */
-  struct TALER_TransferPublicKey transfer_pub;
-
-  /**
-   * Encrypted shared secret to decrypt the link.
-   */
-  struct TALER_EncryptedLinkSecret shared_secret_enc;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-
-/**
- * Linked list of refresh information linked to a coin.
- */
-struct LinkDataList
-{
-  /**
-   * Information is stored in a NULL-terminated linked list.
-   */
-  struct LinkDataList *next;
-
-  /**
-   * Link data, used to recover the private key of the coin
-   * by the owner of the old coin.
-   */
-  struct TALER_RefreshLinkEncrypted *link_data_enc;
-
-  /**
-   * Denomination public key, determines the value of the coin.
-   */
-  struct TALER_DenominationPublicKey denom_pub;
-
-  /**
-   * Signature over the blinded envelope.
-   */
-  struct TALER_DenominationSignature ev_sig;
-};
-
-
-/**
- * Specification for a /lock operation.
- */
-struct Lock
-{
-  /**
-   * Information about the coin that is being locked.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * Signature over the locking operation.
-   */
-  struct TALER_CoinSpendSignature coin_sig;
-
-  /**
-   * How much value is being locked?
-   */
-  struct TALER_Amount amount;
-
-  // FIXME: more needed...
-};
-
-
-/**
- * Enumeration to classify the different types of transactions
- * that can be done with a coin.
- */
-enum TALER_MINT_DB_TransactionType
-{
-  /**
-   * /deposit operation.
-   */
-  TALER_MINT_DB_TT_DEPOSIT = 0,
-
-  /**
-   * /refresh/melt operation.
-   */
-  TALER_MINT_DB_TT_REFRESH_MELT = 1,
-
-  /**
-   * /lock operation.
-   */
-  TALER_MINT_DB_TT_LOCK = 2
-};
-
-
-/**
- * List of transactions we performed for a particular coin.
- */
-struct TALER_MINT_DB_TransactionList
-{
-
-  /**
-   * Next pointer in the NULL-terminated linked list.
-   */
-  struct TALER_MINT_DB_TransactionList *next;
-
-  /**
-   * Type of the transaction, determines what is stored in @e details.
-   */
-  enum TALER_MINT_DB_TransactionType type;
-
-  /**
-   * Details about the transaction, depending on @e type.
-   */
-  union
-  {
-
-    /**
-     * Details if transaction was a /deposit operation.
-     */
-    struct Deposit *deposit;
-
-    /**
-     * Details if transaction was a /refresh/melt operation.
-     */
-    struct RefreshMelt *melt;
-
-    /**
-     * Details if transaction was a /lock operation.
-     */
-    struct Lock *lock;
-
-  } details;
-
-};
-
-
-/**
- * Handle for a database session (per-thread, for transactions).
- */
-struct TALER_MINTDB_Session;
-
-
-/**
- * The plugin API, returned from the plugin's "init" function.
- * The argument given to "init" is simply a configuration handle.
- */
-struct TALER_MINTDB_Plugin
-{
-
-  /**
-   * Closure for all callbacks.
-   */
-  void *cls;
-
-  /**
-   * Name of the library which generated this plugin
-   */
-  const char *library_name;
-
-  /**
-   * Get the thread-local database-handle.
-   * Connect to the db if the connection does not exist yet.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
-   *        database default one
-   * @param the database connection, or NULL on error
-   */
-  struct TALER_MINTDB_Session *
-  (*get_session) (void *cls,
-                  int temporary);
-
-
-  /**
-   * Drop the temporary taler schema.  This is only useful for testcases.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*drop_temporary) (void *cls,
-                     struct TALER_MINTDB_Session *db);
-
-
-  /**
-   * Create the necessary tables if they are not present
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param temporary should we use a temporary schema
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*create_tables) (void *cls,
-                    int temporary);
-
-
-  /**
-   * Start a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion connection to use
-   * @return #GNUNET_OK on success
-   */
-  int
-  (*start) (void *cls,
-            struct TALER_MINTDB_Session *sesssion);
-
-
-  /**
-   * Commit a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion connection to use
-   * @return #GNUNET_OK on success
-   */
-  int
-  (*commit) (void *cls,
-             struct TALER_MINTDB_Session *sesssion);
-
-
-  /**
-   * Abort/rollback a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion connection to use
-   */
-  void
-  (*rollback) (void *cls,
-               struct TALER_MINTDB_Session *sesssion);
-
-
-  /**
-   * Get the summary of a reserve.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param db the database connection handle
-   * @param reserve the reserve data.  The public key of the reserve should be set
-   *          in this structure; it is used to query the database.  The balance
-   *          and expiration are then filled accordingly.
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*reserve_get) (void *cls,
-                  struct TALER_MINTDB_Session *db,
-                  struct Reserve *reserve);
-
-  /* FIXME: add functions to add bank transfers to our DB
-     (and to test if we already did add one) (#3633/#3717) */
-
-
-  /**
-   * Insert a incoming transaction into reserves.  New reserves are also created
-   * through this function.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param db the database connection handle
-   * @param reserve the reserve structure.  The public key of the reserve should
-   *          be set here.  Upon successful execution of this function, the
-   *          balance and expiration of the reserve will be updated.
-   * @param balance the amount that has to be added to the reserve
-   * @param expiry the new expiration time for the reserve
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failures
-   */
-  int
-  (*reserves_in_insert) (void *cls,
-                         struct TALER_MINTDB_Session *db,
-                         struct Reserve *reserve,
-                         const struct TALER_Amount *balance,
-                         const struct GNUNET_TIME_Absolute expiry);
-
-
-  /**
-   * Locate the response for a /withdraw request under the
-   * key of the hash of the blinded message.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param h_blind hash of the blinded message
-   * @param collectable corresponding collectable coin (blind signature)
-   *                    if a coin is found
-   * @return #GNUNET_SYSERR on internal error
-   *         #GNUNET_NO if the collectable was not found
-   *         #GNUNET_YES on success
-   */
-  int
-  (*get_collectable_blindcoin) (void *cls,
-                                struct TALER_MINTDB_Session *sesssion,
-                                const struct GNUNET_HashCode *h_blind,
-                                struct CollectableBlindcoin *collectable);
-
-
-  /**
-   * Store collectable bit coin under the corresponding
-   * hash of the blinded message.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param h_blind hash of the blinded message
-   * @param withdraw amount by which the reserve will be withdrawn with this
-   *          transaction
-   * @param collectable corresponding collectable coin (blind signature)
-   *                    if a coin is found
-   * @return #GNUNET_SYSERR on internal error
-   *         #GNUNET_NO if the collectable was not found
-   *         #GNUNET_YES on success
-   */
-  int
-  (*insert_collectable_blindcoin) (void *cls,
-                                   struct TALER_MINTDB_Session *sesssion,
-                                   const struct GNUNET_HashCode *h_blind,
-                                   struct TALER_Amount withdraw,
-                                   const struct CollectableBlindcoin *collectable);
-
-
-  /**
-   * Get all of the transaction history associated with the specified
-   * reserve.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion connection to use
-   * @param reserve_pub public key of the reserve
-   * @return known transaction history (NULL if reserve is unknown)
-   */
-  struct ReserveHistory *
-  (*get_reserve_history) (void *cls,
-                          struct TALER_MINTDB_Session *sesssion,
-                          const struct TALER_ReservePublicKey *reserve_pub);
-
-
-  /**
-   * Free memory associated with the given reserve history.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param rh history to free.
-   */
-  void
-  (*free_reserve_history) (void *cls,
-                           struct ReserveHistory *rh);
-
-
-  /**
-   * Check if we have the specified deposit already in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param deposit deposit to search for
-   * @return #GNUNET_YES if we know this operation,
-   *         #GNUNET_NO if this deposit is unknown to us,
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*have_deposit) (void *cls,
-                   struct TALER_MINTDB_Session *sesssion,
-                   const struct Deposit *deposit);
-
-
-  /**
-   * Insert information about deposited coin into the
-   * database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion connection to the database
-   * @param deposit deposit information to store
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
-   */
-  int
-  (*insert_deposit) (void *cls,
-                     struct TALER_MINTDB_Session *sesssion,
-                     const struct Deposit *deposit);
-
-
-  /**
-   * Lookup refresh session data under the given @a session_hash.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database handle to use
-   * @param session_hash hash over the melt to use for the lookup
-   * @param refresh_session[OUT] where to store the result
-   * @return #GNUNET_YES on success,
-   *         #GNUNET_NO if not found,
-   *         #GNUNET_SYSERR on DB failure
-   */
-  int
-  (*get_refresh_session) (void *cls,
-                          struct TALER_MINTDB_Session *sesssion,
-                          const struct GNUNET_HashCode *session_hash,
-                          struct RefreshSession *refresh_session);
-
-
-  /**
-   * Store new refresh session data under the given @a session_hash.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database handle to use
-   * @param session_hash hash over the melt to use to locate the session
-   * @param refresh_session session data to store
-   * @return #GNUNET_YES on success,
-   *         #GNUNET_SYSERR on DB failure
-   */
-  int
-  (*create_refresh_session) (void *cls,
-                             struct TALER_MINTDB_Session *sesssion,
-                             const struct GNUNET_HashCode *session_hash,
-                             const struct RefreshSession *refresh_session);
-
-
-  /**
-   * Store the given /refresh/melt request in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param oldcoin_index index of the coin to store
-   * @param melt coin melt operation details to store; includes
-   *             the session hash of the melt
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*insert_refresh_melt) (void *cls,
-                          struct TALER_MINTDB_Session *sesssion,
-                          uint16_t oldcoin_index,
-                          const struct RefreshMelt *melt);
-
-
-  /**
-   * Get information about melted coin details from the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param session_hash hash to identify refresh session
-   * @param oldcoin_index index of the coin to retrieve
-   * @param melt melt data to fill in
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*get_refresh_melt) (void *cls,
-                       struct TALER_MINTDB_Session *sesssion,
-                       const struct GNUNET_HashCode *session_hash,
-                       uint16_t oldcoin_index,
-                       struct RefreshMelt *melt);
-
-
-  /**
-   * Store in the database which coin(s) we want to create
-   * in a given refresh operation.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param session_hash hash to identify refresh session
-   * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
-   * @param denom_pubs array denominations of the coins to create
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*insert_refresh_order) (void *cls,
-                           struct TALER_MINTDB_Session *sesssion,
-                           const struct GNUNET_HashCode *session_hash,
-                           uint16_t num_newcoins,
-                           const struct TALER_DenominationPublicKey *denom_pubs);
-
-
-  /**
-   * Lookup in the database for the @a num_newcoins coins that we want to
-   * create in the given refresh operation.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param session_hash hash to identify refresh session
-   * @param num_newcoins size of the @a denom_pubs array
-   * @param denom_pubs[OUT] where to write @a num_newcoins denomination keys
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*get_refresh_order) (void *cls,
-                        struct TALER_MINTDB_Session *sesssion,
-                        const struct GNUNET_HashCode *session_hash,
-                        uint16_t num_newcoins,
-                        struct TALER_DenominationPublicKey *denom_pubs);
-
-
-  /**
-   * Store information about the commitments of the given index @a i
-   * for the given refresh session in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param i set index (1st dimension), relating to #KAPPA
-   * @param num_newcoins coin index size of the @a commit_coins array
-   * @param commit_coin array of coin commitments to store
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*insert_refresh_commit_coins) (void *cls,
-                                  struct TALER_MINTDB_Session *sesssion,
-                                  const struct GNUNET_HashCode *session_hash,
-                                  unsigned int i,
-                                  unsigned int num_newcoins,
-                                  const struct RefreshCommitCoin *commit_coins);
-
-
-  /**
-   * Obtain information about the commitment of the
-   * given coin of the given refresh session from the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param i set index (1st dimension)
-   * @param num_coins size of the @a commit_coins array
-   * @param commit_coin[OUT] array of coin commitments to return
-   * @return #GNUNET_OK on success
-   *         #GNUNET_NO if not found
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*get_refresh_commit_coins) (void *cls,
-                               struct TALER_MINTDB_Session *sesssion,
-                               const struct GNUNET_HashCode *session_hash,
-                               unsigned int i,
-                               unsigned int num_coins,
-                               struct RefreshCommitCoin *commit_coins);
-
-
-  /**
-   * Store the commitment to the given (encrypted) refresh link data
-   * for the given refresh session.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param i set index (1st dimension), relating to #KAPPA
-   * @param num_links size of the @a commit_link array
-   * @param commit_links array of link information to store
-   * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
-   */
-  int
-  (*insert_refresh_commit_links) (void *cls,
-                                  struct TALER_MINTDB_Session *sesssion,
-                                  const struct GNUNET_HashCode *session_hash,
-                                  unsigned int i,
-                                  unsigned int num_links,
-                                  const struct RefreshCommitLink *commit_links);
-
-  /**
-   * Obtain the commited (encrypted) refresh link data
-   * for the given refresh session.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param i set index (1st dimension)
-   * @param num_links size of the @links array to return
-   * @param links[OUT] array link information to return
-   * @return #GNUNET_SYSERR on internal error,
-   *         #GNUNET_NO if commitment was not found
-   *         #GNUNET_OK on success
-   */
-  int
-  (*get_refresh_commit_links) (void *cls,
-                               struct TALER_MINTDB_Session *sesssion,
-                               const struct GNUNET_HashCode *session_hash,
-                               unsigned int i,
-                               unsigned int num_links,
-                               struct RefreshCommitLink *links);
-
-
-  /**
-   * Insert signature of a new coin generated during refresh into
-   * the database indexed by the refresh session and the index
-   * of the coin.  This data is later used should an old coin
-   * be used to try to obtain the private keys during "/refresh/link".
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param session_hash hash to identify refresh session
-   * @param newcoin_index coin index
-   * @param ev_sig coin signature
-   * @return #GNUNET_OK on success
-   */
-  int
-  (*insert_refresh_collectable) (void *cls,
-                                 struct TALER_MINTDB_Session *sesssion,
-                                 const struct GNUNET_HashCode *session_hash,
-                                 uint16_t newcoin_index,
-                                 const struct TALER_DenominationSignature *ev_sig);
-
-
-  /**
-   * Obtain the link data of a coin, that is the encrypted link
-   * information, the denomination keys and the signatures.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param coin_pub public key to use to retrieve linkage data
-   * @return all known link data for the coin
-   */
-  struct LinkDataList *
-  (*get_link_data_list) (void *cls,
-                         struct TALER_MINTDB_Session *sesssion,
-                         const struct TALER_CoinSpendPublicKey *coin_pub);
-
-
-  /**
-   * Free memory of the link data list.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param ldl link data list to release
-   */
-  void
-  (*free_link_data_list) (void *cls,
-                          struct LinkDataList *ldl);
-
-
-  /**
-   * Obtain shared secret and transfer public key from the public key of
-   * the coin.  This information and the link information returned by
-   * #TALER_db_get_link() enable the owner of an old coin to determine
-   * the private keys of the new coins after the melt.
-   *
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param coin_pub public key of the coin
-   * @param transfer_pub[OUT] public transfer key
-   * @param shared_secret_enc[OUT] set to shared secret
-   * @return #GNUNET_OK on success,
-   *         #GNUNET_NO on failure (not found)
-   *         #GNUNET_SYSERR on internal failure (database issue)
-   */
-  int
-  (*get_transfer) (void *cls,
-                   struct TALER_MINTDB_Session *sesssion,
-                   const struct TALER_CoinSpendPublicKey *coin_pub,
-                   struct TALER_TransferPublicKey *transfer_pub,
-                   struct TALER_EncryptedLinkSecret *shared_secret_enc);
-
-
-  /**
-   * Test if the given /lock request is known to us.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param lock lock operation
-   * @return #GNUNET_YES if known,
-   *         #GNUENT_NO if not,
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*have_lock) (void *cls,
-                struct TALER_MINTDB_Session *sesssion,
-                const struct Lock *lock);
-
-
-  /**
-   * Store the given /lock request in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param lock lock operation
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*insert_lock) (void *cls,
-                  struct TALER_MINTDB_Session *sesssion,
-                  const struct Lock *lock);
-
-
-  /**
-   * Compile a list of all (historic) transactions performed
-   * with the given coin (/refresh/melt and /deposit operations).
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param sesssion database connection
-   * @param coin_pub coin to investigate
-   * @return list of transactions, NULL if coin is fresh
-   */
-  struct TALER_MINT_DB_TransactionList *
-  (*get_coin_transactions) (void *cls,
-                            struct TALER_MINTDB_Session *sesssion,
-                            const struct TALER_CoinSpendPublicKey *coin_pub);
-
-
-  /**
-   * Free linked list of transactions.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param list list to free
-   */
-  void
-  (*free_coin_transaction_list) (void *cls,
-                                 struct TALER_MINT_DB_TransactionList *list);
-
-
-};
-
-
-#endif /* _NEURO_MINT_DB_H */