-work on new KYC logic: remove old DB code
This commit is contained in:
Christian Grothoff
parent
3e6e873367
commit
f5b99b5282
@ -890,16 +890,6 @@ prepare_statements (struct PostgresClosure *pg)
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" FROM exchange_do_batch_withdraw_insert"
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" ($1,$2,$3,$4,$5,$6,$7,$8,$9);",
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9),
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/* Used in #postgres_do_withdraw_limit_check() to check
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if the withdrawals remain below the limit under which
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KYC is not required. */
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GNUNET_PQ_make_prepare (
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"call_withdraw_limit_check",
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"SELECT "
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" below_limit"
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" FROM exchange_do_withdraw_limit_check"
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" ($1,$2,$3,$4);",
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4),
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/* Used in #postgres_do_deposit() to execute a deposit,
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checking the coin's balance in the process as needed. */
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GNUNET_PQ_make_prepare (
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@ -6299,45 +6289,6 @@ postgres_do_batch_withdraw_insert (
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}
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/**
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* Check that reserve remains below threshold for KYC
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* checks after withdraw operation.
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*
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* @param cls the `struct PostgresClosure` with the plugin-specific state
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* @param ruuid reserve to check
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* @param withdraw_start starting point to accumulate from
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* @param upper_limit maximum amount allowed
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* @param[out] below_limit set to true if the limit was not exceeded
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* @return query execution status
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*/
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static enum GNUNET_DB_QueryStatus
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postgres_do_withdraw_limit_check (
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void *cls,
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uint64_t ruuid,
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struct GNUNET_TIME_Absolute withdraw_start,
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const struct TALER_Amount *upper_limit,
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bool *below_limit)
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{
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struct PostgresClosure *pg = cls;
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struct GNUNET_PQ_QueryParam params[] = {
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GNUNET_PQ_query_param_uint64 (&ruuid),
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GNUNET_PQ_query_param_absolute_time (&withdraw_start),
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TALER_PQ_query_param_amount (upper_limit),
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GNUNET_PQ_query_param_end
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};
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struct GNUNET_PQ_ResultSpec rs[] = {
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GNUNET_PQ_result_spec_bool ("below_limit",
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below_limit),
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GNUNET_PQ_result_spec_end
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};
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return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
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"call_withdraw_limit_check",
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params,
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rs);
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}
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/**
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* Compute the shard number of a given @a merchant_pub.
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*
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@ -17219,7 +17170,6 @@ libtaler_plugin_exchangedb_postgres_init (void *cls)
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plugin->do_withdraw = &postgres_do_withdraw;
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plugin->do_batch_withdraw = &postgres_do_batch_withdraw;
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plugin->do_batch_withdraw_insert = &postgres_do_batch_withdraw_insert;
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plugin->do_withdraw_limit_check = &postgres_do_withdraw_limit_check;
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plugin->do_deposit = &postgres_do_deposit;
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plugin->do_melt = &postgres_do_melt;
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plugin->do_refund = &postgres_do_refund;
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@ -409,48 +409,6 @@ COMMENT ON FUNCTION exchange_do_batch_withdraw_insert(BYTEA, INT8, INT4, BYTEA,
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CREATE OR REPLACE FUNCTION exchange_do_withdraw_limit_check(
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IN ruuid INT8,
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IN start_time INT8,
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IN upper_limit_val INT8,
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IN upper_limit_frac INT4,
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OUT below_limit BOOLEAN)
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LANGUAGE plpgsql
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AS $$
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DECLARE
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total_val INT8;
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DECLARE
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total_frac INT8; -- INT4 could overflow during accumulation!
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BEGIN
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-- NOTE: Read-only, but crosses shards.
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-- Shards: reserves by reserve_pub
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-- reserves_out by reserve_uuid -- crosses shards!!
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SELECT
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SUM(amount_with_fee_val) -- overflow here is not plausible
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,SUM(CAST(amount_with_fee_frac AS INT8)) -- compute using 64 bits
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INTO
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total_val
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,total_frac
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FROM exchange.reserves_out
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WHERE reserve_uuid=ruuid
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AND execution_date > start_time;
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-- normalize result
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total_val = total_val + total_frac / 100000000;
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total_frac = total_frac % 100000000;
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-- compare to threshold
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below_limit = (total_val < upper_limit_val) OR
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( (total_val = upper_limit_val) AND
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(total_frac <= upper_limit_frac) );
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END $$;
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COMMENT ON FUNCTION exchange_do_withdraw_limit_check(INT8, INT8, INT8, INT4)
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IS 'Check whether the withdrawals from the given reserve since the given time are below the given threshold';
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-- NOTE: experiment, currently dead, see postgres_Start_deferred_wire_out;
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-- now done inline. FIXME: Remove code here once inline version is confirmed working nicely!
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CREATE OR REPLACE PROCEDURE defer_wire_out()
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@ -3226,26 +3226,6 @@ struct TALER_EXCHANGEDB_Plugin
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bool *nonce_reuse);
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/**
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* Check that reserve remains below threshold for KYC
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* checks after withdraw operation.
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*
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* @param cls the `struct PostgresClosure` with the plugin-specific state
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* @param ruuid identifies the reserve to check
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* @param withdraw_start starting point to accumulate from
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* @param upper_limit maximum amount allowed
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* @param[out] below_limit set to true if the limit was not exceeded
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* @return query execution status
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*/
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enum GNUNET_DB_QueryStatus
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(*do_withdraw_limit_check)(
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void *cls,
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uint64_t ruuid,
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struct GNUNET_TIME_Absolute withdraw_start,
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const struct TALER_Amount *upper_limit,
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bool *below_limit);
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/**
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* Perform deposit operation, checking for sufficient balance
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* of the coin and possibly persisting the deposit details.
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