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-rw-r--r--src/include/taler_exchangedb_plugin.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h
index 8450fb04f..104ae8059 100644
--- a/src/include/taler_exchangedb_plugin.h
+++ b/src/include/taler_exchangedb_plugin.h
@@ -2430,6 +2430,23 @@ struct TALER_EXCHANGEDB_Plugin
/**
+ * Obtain information about which old coin a coin was refreshed
+ * given the hash of the blinded (fresh) coin.
+ *
+ * @param cls closure
+ * @param session a session
+ * @param h_blind_ev hash of the blinded coin
+ * @param[out] old_coin_pub set to information about the old coin (on success only)
+ * @return transaction status code
+ */
+ enum GNUNET_DB_QueryStatus
+ (*get_old_coin_by_h_blind)(void *cls,
+ struct TALER_EXCHANGEDB_Session *session,
+ const struct GNUNET_HashCode *h_blind_ev,
+ struct TALER_CoinSpendPublicKeyP *old_coin_pub);
+
+
+ /**
* Store information that a denomination key was revoked
* in the database.
*