From f048de97822f29ec3dae5de57fab7a72a1fc4d8a Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 29 Jun 2017 20:46:52 +0200
Subject: preparations for #4840

---
 src/include/taler_error_codes.h      | 8 +++++++-
 src/include/taler_exchange_service.h | 7 +++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/taler_error_codes.h b/src/include/taler_error_codes.h
index 5e9988ec7..907be847b 100644
--- a/src/include/taler_error_codes.h
+++ b/src/include/taler_error_codes.h
@@ -895,7 +895,13 @@ enum TALER_ErrorCode
    */
   TALER_EC_PAYBACK_COIN_BALANCE_NEGATIVE = 1857,
 
-
+  /**
+   * The "have" parameter was not a natural number.
+   * This reponse is provied with an HTTP status code of
+   * MHD_HTTP_BAD_REQUEST.
+   */
+  TALER_EC_KEYS_HAVE_NOT_NUMERIC = 1900,
+  
 
   /* *********** Merchant backend error codes ********* */
 
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index 9a004a4f8..04fa51fff 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -205,6 +205,13 @@ struct TALER_EXCHANGE_Keys
    */
   char *version;
 
+  /**
+   * Timestamp indicating the /keys generation.  Monotonically
+   * increasing. Used to fetch /keys incrementally.  Set from
+   * the "list_issue_date" timestamp of /keys.
+   */
+  struct GNUNET_TIME_Absolute last_issue_date;
+  
   /**
    * Length of the @e sign_keys array.
    */
-- 
cgit v1.2.3