implement select_refunds_by_coin in exchangedb plugin

1 files changed, 40 insertions, 0 deletions

diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h
index e64b0ad4c..c531d8384 100644
--- a/src/include/taler_exchangedb_plugin.h
+++ b/src/include/taler_exchangedb_plugin.h
@@ -733,6 +733,29 @@ typedef int
 
 
 /**
+ * Callback invoked with information about refunds applicable
+ * to a particular coin.
+ *
+ * @param cls closure
+ * @param merchant_pub public key of merchant who authorized refund
+ * @param merchant_sig signature of merchant authorizing refund
+ * @param h_contract hash of contract being refunded
+ * @param rtransaction_id refund transaction ID
+ * @param amount_with_fee amount being refunded
+ * @param refund_fee fee the exchange keeps for the refund processing
+ * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
+ */
+typedef int
+(*TALER_EXCHANGEDB_RefundCoinCallback)(void *cls,
+				       const struct TALER_MerchantPublicKeyP *merchant_pub,
+				       const struct TALER_MerchantSignatureP *merchant_sig,
+				       const struct GNUNET_HashCode *h_contract,
+				       uint64_t rtransaction_id,
+				       const struct TALER_Amount *amount_with_fee,
+				       const struct TALER_Amount *refund_fee);
+
+
+/**
  * Information about a coin that was revealed to the exchange
  * during /refresh/reveal.
  */
@@ -1358,6 +1381,23 @@ struct TALER_EXCHANGEDB_Plugin
                     struct TALER_EXCHANGEDB_Session *session,
                     const struct TALER_EXCHANGEDB_Refund *refund);
 
+  /**
+   * Select refunds by @a coin_pub.
+   *
+   * @param cls closure of plugin
+   * @param session database handle to use
+   * @param coin_pub coin to get refunds for
+   * @param cb function to call for each refund found
+   * @param cb_cls closure for @a cb
+   * @return query result status
+   */
+  enum GNUNET_DB_QueryStatus
+  (*select_refunds_by_coin)(void *cls,
+			    struct TALER_EXCHANGEDB_Session *session,
+			    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+			    TALER_EXCHANGEDB_RefundCoinCallback cb,
+			    void *cb_cls);
+  
 
   /**
    * Mark a deposit as tiny, thereby declaring that it cannot be