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authorChristian Grothoff <christian@grothoff.org>2017-03-18 22:20:48 +0100
committerChristian Grothoff <christian@grothoff.org>2017-03-18 22:20:48 +0100
commit69ac028a13497d9fa0b7ebf5e3c7992a492aab13 (patch)
tree9180ab195428d2048c2ae1ffe61ada32dd18d431 /src
parenta9f9161c3afbebb09fff25a0ce54e27fd6ae1ff9 (diff)
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add required separate risk balance per denomination to auditordb
Diffstat (limited to 'src')
-rw-r--r--src/auditor/taler-auditor.c54
-rw-r--r--src/auditordb/plugin_auditordb_postgres.c35
-rw-r--r--src/auditordb/test_auditordb.c10
-rw-r--r--src/include/taler_auditordb_plugin.h19
4 files changed, 90 insertions, 28 deletions
diff --git a/src/auditor/taler-auditor.c b/src/auditor/taler-auditor.c
index 3939f280..d128619d 100644
--- a/src/auditor/taler-auditor.c
+++ b/src/auditor/taler-auditor.c
@@ -1027,11 +1027,17 @@ struct CoinSummary
struct DenominationSummary
{
/**
- * Total value of coins issued with this denomination key.
+ * Total value of outstanding (not deposited) coins issued with this
+ * denomination key.
*/
struct TALER_Amount denom_balance;
/**
+ * Total value of coins issued with this denomination key.
+ */
+ struct TALER_Amount denom_risk;
+
+ /**
* #GNUNET_YES if this record already existed in the DB.
* Used to decide between insert/update in
* #sync_denomination().
@@ -1120,7 +1126,8 @@ init_denomination (const struct GNUNET_HashCode *denom_hash,
ret = adb->get_denomination_balance (adb->cls,
asession,
denom_hash,
- &ds->denom_balance);
+ &ds->denom_balance,
+ &ds->denom_risk);
if (GNUNET_OK == ret)
{
ds->in_db = GNUNET_YES;
@@ -1134,6 +1141,9 @@ init_denomination (const struct GNUNET_HashCode *denom_hash,
GNUNET_assert (GNUNET_OK ==
TALER_amount_get_zero (currency,
&ds->denom_balance));
+ GNUNET_assert (GNUNET_OK ==
+ TALER_amount_get_zero (currency,
+ &ds->denom_risk));
return GNUNET_OK;
}
@@ -1197,13 +1207,34 @@ sync_denomination (void *cls,
// DELETE denomination balance, and REDUCE cc->risk exposure!
if (0)
{
- ret = adb->del_denomination_balance (adb->cls,
- asession,
- denom_hash);
- if (GNUNET_OK == ret)
+ if (ds->in_db)
+ ret = adb->del_denomination_balance (adb->cls,
+ asession,
+ denom_hash);
+ else
+ ret = GNUNET_OK;
+ if ( (GNUNET_OK == ret) &&
+ ( (0 != ds->denom_balance.value) ||
+ (0 != ds->denom_balance.fraction) ||
+ (0 != ds->denom_risk.value) ||
+ (0 != ds->denom_risk.fraction) ) )
{
- // FIXME: reduce RISK
- // FIXME: book denomination expiration profits!
+ /* The denomination expired and carried a balance; we can now
+ book the remaining balance as profit, and reduce our risk
+ exposure by the accumulated risk of the denomination. */
+ if (GNUNET_SYSERR ==
+ TALER_amount_subtract (&cc->risk,
+ &cc->risk,
+ &ds->denom_risk))
+ {
+ /* Holy smokes, our risk assessment was inconsistent!
+ This is really, really bad. */
+ GNUNET_break (0);
+ cc->ret = GNUNET_SYSERR;
+ return GNUNET_OK;
+ }
+
+ // TODO: book denom_balance expiration profits!
}
}
else
@@ -1212,12 +1243,14 @@ sync_denomination (void *cls,
ret = adb->update_denomination_balance (adb->cls,
asession,
denom_hash,
- &ds->denom_balance);
+ &ds->denom_balance,
+ &ds->denom_risk);
else
ret = adb->insert_denomination_balance (adb->cls,
asession,
denom_hash,
- &ds->denom_balance);
+ &ds->denom_balance,
+ &ds->denom_risk);
}
if (GNUNET_OK != ret)
{
@@ -1871,7 +1904,6 @@ analyze_coins (void *cls)
/* setup 'cc' */
cc.ret = GNUNET_OK;
// FIXME: FIX misnomer "denomination_summary", as this is no longer exactly about denominations!
- // FIXME: combine request with the one for the 'risk' summary?
dret = adb->get_denomination_summary (adb->cls,
asession,
&master_pub,
diff --git a/src/auditordb/plugin_auditordb_postgres.c b/src/auditordb/plugin_auditordb_postgres.c
index 1ef067da..8c7eca19 100644
--- a/src/auditordb/plugin_auditordb_postgres.c
+++ b/src/auditordb/plugin_auditordb_postgres.c
@@ -330,6 +330,9 @@ postgres_create_tables (void *cls)
",denom_balance_val INT8 NOT NULL"
",denom_balance_frac INT4 NOT NULL"
",denom_balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+ ",denom_risk_val INT8 NOT NULL"
+ ",denom_risk_frac INT4 NOT NULL"
+ ",denom_risk_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
")");
/* Table with the sum of the outstanding coins from
@@ -679,8 +682,11 @@ postgres_prepare (PGconn *db_conn)
",denom_balance_val"
",denom_balance_frac"
",denom_balance_curr"
- ") VALUES ($1,$2,$3,$4);",
- 4, NULL);
+ ",denom_risk_val"
+ ",denom_risk_frac"
+ ",denom_risk_curr"
+ ") VALUES ($1,$2,$3,$4,$5,$6,$7);",
+ 7, NULL);
/* Used in #postgres_update_denomination_balance() */
PREPARE ("denomination_pending_update",
@@ -688,8 +694,11 @@ postgres_prepare (PGconn *db_conn)
" denom_balance_val=$1"
",denom_balance_frac=$2"
",denom_balance_curr=$3"
- " WHERE denom_pub_hash=$4",
- 4, NULL);
+ ",denom_risk_val=$4"
+ ",denom_risk_frac=$5"
+ ",denom_risk_curr=$6"
+ " WHERE denom_pub_hash=$7",
+ 7, NULL);
/* Used in #postgres_get_denomination_balance() */
PREPARE ("denomination_pending_select",
@@ -697,6 +706,9 @@ postgres_prepare (PGconn *db_conn)
" denom_balance_val"
",denom_balance_frac"
",denom_balance_curr"
+ ",denom_risk_val"
+ ",denom_risk_frac"
+ ",denom_risk_curr"
" FROM denomination_pending"
" WHERE denom_pub_hash=$1",
1, NULL);
@@ -1811,19 +1823,22 @@ postgres_get_reserve_summary (void *cls,
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
* @param denom_balance value of coins outstanding with this denomination key
+ * @param denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
static int
postgres_insert_denomination_balance (void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- const struct TALER_Amount *denom_balance)
+ const struct TALER_Amount *denom_balance,
+ const struct TALER_Amount *denom_risk)
{
PGresult *result;
int ret;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
TALER_PQ_query_param_amount (denom_balance),
+ TALER_PQ_query_param_amount (denom_risk),
GNUNET_PQ_query_param_end
};
@@ -1852,18 +1867,21 @@ postgres_insert_denomination_balance (void *cls,
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
* @param denom_balance value of coins outstanding with this denomination key
+ * @param denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
static int
postgres_update_denomination_balance (void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- const struct TALER_Amount *denom_balance)
+ const struct TALER_Amount *denom_balance,
+ const struct TALER_Amount *denom_risk)
{
PGresult *result;
int ret;
struct GNUNET_PQ_QueryParam params[] = {
TALER_PQ_query_param_amount (denom_balance),
+ TALER_PQ_query_param_amount (denom_risk),
GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
GNUNET_PQ_query_param_end
};
@@ -1892,13 +1910,15 @@ postgres_update_denomination_balance (void *cls,
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
* @param[out] denom_balance value of coins outstanding with this denomination key
+ * @param[out] denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_NO if no record found, #GNUNET_SYSERR on failure
*/
static int
postgres_get_denomination_balance (void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- struct TALER_Amount *denom_balance)
+ struct TALER_Amount *denom_balance,
+ struct TALER_Amount *denom_risk)
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (denom_pub_hash),
@@ -1929,6 +1949,7 @@ postgres_get_denomination_balance (void *cls,
struct GNUNET_PQ_ResultSpec rs[] = {
TALER_PQ_result_spec_amount ("denom_balance", denom_balance),
+ TALER_PQ_result_spec_amount ("denom_risk", denom_risk),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
diff --git a/src/auditordb/test_auditordb.c b/src/auditordb/test_auditordb.c
index 2681a386..d3e93313 100644
--- a/src/auditordb/test_auditordb.c
+++ b/src/auditordb/test_auditordb.c
@@ -380,7 +380,8 @@ run (void *cls)
plugin->insert_denomination_balance (plugin->cls,
session,
&denom_pub_hash,
- &denom_balance));
+ &denom_balance,
+ &rbalance));
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Test: update_denomination_balance\n");
@@ -394,7 +395,8 @@ run (void *cls)
plugin->update_denomination_balance (plugin->cls,
session,
&denom_pub_hash,
- &denom_balance));
+ &denom_balance,
+ &rbalance));
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Test: get_denomination_balance\n");
@@ -402,9 +404,11 @@ run (void *cls)
plugin->get_denomination_balance (plugin->cls,
session,
&denom_pub_hash,
- &denom_balance2));
+ &denom_balance2,
+ &rbalance2));
FAILIF (0 != memcmp (&denom_balance2, &denom_balance, sizeof (denom_balance)));
+ FAILIF (0 != memcmp (&rbalance2, &rbalance, sizeof (rbalance)));
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
diff --git a/src/include/taler_auditordb_plugin.h b/src/include/taler_auditordb_plugin.h
index 1a29e5ae..54e6c520 100644
--- a/src/include/taler_auditordb_plugin.h
+++ b/src/include/taler_auditordb_plugin.h
@@ -522,15 +522,16 @@ struct TALER_AUDITORDB_Plugin
* @param cls the @e cls of this struct with the plugin-specific state
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
- * @param denom_balance value of coins outstanding (or issued?) with this denomination key
+ * @param denom_balance value of coins outstanding with this denomination key
+ * @param denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
int
(*insert_denomination_balance)(void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- const struct TALER_Amount *denom_balance);
-
+ const struct TALER_Amount *denom_balance,
+ const struct TALER_Amount *denom_risk);
/**
@@ -540,14 +541,16 @@ struct TALER_AUDITORDB_Plugin
* @param cls the @e cls of this struct with the plugin-specific state
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
- * @param denom_balance value of coins outstanding (or issued?) with this denomination key
+ * @param denom_balance value of coins outstanding with this denomination key
+ * @param denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
*/
int
(*update_denomination_balance)(void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- const struct TALER_Amount *denom_balance);
+ const struct TALER_Amount *denom_balance,
+ const struct TALER_Amount *denom_risk);
/**
@@ -556,14 +559,16 @@ struct TALER_AUDITORDB_Plugin
* @param cls the @e cls of this struct with the plugin-specific state
* @param session connection to use
* @param denom_pub_hash hash of the denomination public key
- * @param[out] denom_balance value of coins outstanding (or issued?) with this denomination key
+ * @param[out] denom_balance value of coins outstanding with this denomination key
+ * @param[out] denom_risk value of coins issued with this denomination key
* @return #GNUNET_OK on success; #GNUNET_NO if no record found, #GNUNET_SYSERR on failure
*/
int
(*get_denomination_balance)(void *cls,
struct TALER_AUDITORDB_Session *session,
const struct GNUNET_HashCode *denom_pub_hash,
- struct TALER_Amount *denom_balance);
+ struct TALER_Amount *denom_balance,
+ struct TALER_Amount *denom_risk);
/**