[taler-exchange] 06/29: [æge-withdraw] WiP: towards new API

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oec pushed a commit to branch master
in repository exchange.

commit 4a31a180a4595aa040060e91ccde4f839aa02f72
Author: Özgür Kesim <oec-taler@kesim.org>
AuthorDate: Sun May 14 13:11:36 2023 +0200

    [æge-withdraw] WiP: towards new API
---
 src/exchange/taler-exchange-httpd_age-withdraw.c | 15 +++++++++++++--
 src/exchangedb/0003-age_withdraw_commitments.sql | 15 ++++-----------
 2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/src/exchange/taler-exchange-httpd_age-withdraw.c 
b/src/exchange/taler-exchange-httpd_age-withdraw.c
index 0978421a..d9475e8f 100644
--- a/src/exchange/taler-exchange-httpd_age-withdraw.c
+++ b/src/exchange/taler-exchange-httpd_age-withdraw.c
@@ -92,9 +92,20 @@ struct AgeWithdrawContext
   struct TALER_EXCHANGEDB_AgeWithdrawCommitment commitment;
 
   /**
-   * Current time for the DB transaction.
+   * Number of coins/denonations in the reveal
    */
-  struct GNUNET_TIME_Timestamp now;
+  uint32_t num_coins;
+
+  /**
+   * kappa * #num_coins hashes of blinded coin planchets.
+   */
+  struct TALER_BlindedPlanchet *coin_evs;
+
+  /**
+   * #num_coins hashes of the denominations from which the coins are withdrawn.
+   * Those must support age restriction.
+   */
+  struct TALER_DenominationHashP *denoms_h;
 };
 
 
diff --git a/src/exchangedb/0003-age_withdraw_commitments.sql 
b/src/exchangedb/0003-age_withdraw_commitments.sql
index 2ee462ec..3106a07a 100644
--- a/src/exchangedb/0003-age_withdraw_commitments.sql
+++ b/src/exchangedb/0003-age_withdraw_commitments.sql
@@ -30,10 +30,9 @@ BEGIN
       ',max_age SMALLINT NOT NULL CONSTRAINT max_age_positive 
CHECK(max_age>=0)'
       ',reserve_pub BYTEA NOT NULL CONSTRAINT reserve_pub_length 
CHECK(LENGTH(reserve_pub)=32)'
       ',reserve_sig BYTEA NOT NULL CONSTRAINT reserve_sig_length 
CHECK(LENGTH(reserve_sig)=64)'
-      ',num_coins SMALLINT NOT NULL CONSTRAINT num_coins_positive 
CHECK(num_coins>0)'
-      ',denominations_serials INT8[] NOT NULL CONSTRAINT 
denominations_serial_array_length 
CHECK(cardinality(denominations_serials)=num_coins)'
-      ',denom_sigs BYTEA[] NOT NULL CONSTRAINT denom_sigs_array_length 
CHECK(cardinality(denom_sigs)=num_coins)'
       ',noreveal_index SMALLINT NOT NULL CONSTRAINT noreveal_index_positive 
CHECK(noreveal_index>=0)'
+      ',denominations_serials INT8[] NOT NULL CONSTRAINT 
denominations_serial_array_length 
CHECK(cardinality(denominations_serials)=cardinality(denom_sigs))'
+      ',denom_sigs BYTEA[] NOT NULL CONSTRAINT denom_sigs_array_length 
CHECK(cardinality(denom_sigs)=cardinality(denominations_serials))'
     ') %s ;'
     ,table_name
     ,'PARTITION BY HASH (reserve_pub)'
@@ -75,20 +74,14 @@ BEGIN
     ,table_name
     ,partition_suffix
   );
-  PERFORM comment_partinioned_column(
-    'Number of coins to be withdrawn'
-    ,'num_coins'
-    ,table_name
-    ,partition_suffix
-  );
   PERFORM comment_partitioned_column(
-     'Array of #num_coins of references to the denominations'
+     'Array of references to the denominations'
     ,'denominations_serials'
     ,table_name
     ,partition_suffix
   );
   PERFORM comment_partitioned_column(
-     'Array of #num_coins signatures over the blinded envelopes'
+     'Array of signatures over the blinded envelopes'
     ,'denom_sigs'
     ,table_name
     ,partition_suffix

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