139 lines
5.2 KiB
C++
139 lines
5.2 KiB
C++
/*
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* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
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*
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* The MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <graphene/chain/account_object.hpp>
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#include <graphene/chain/database.hpp>
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#include <graphene/chain/vesting_balance_evaluator.hpp>
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#include <graphene/chain/vesting_balance_object.hpp>
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namespace graphene { namespace chain {
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void_result vesting_balance_create_evaluator::do_evaluate( const vesting_balance_create_operation& op )
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{ try {
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const database& d = db();
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const account_object& creator_account = op.creator( d );
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/* const account_object& owner_account = */ op.owner( d );
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// TODO: Check asset authorizations and withdrawals
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FC_ASSERT( op.amount.amount > 0 );
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FC_ASSERT( d.get_balance( creator_account.id, op.amount.asset_id ) >= op.amount );
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FC_ASSERT( !op.amount.asset_id(d).is_transfer_restricted() );
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return void_result();
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} FC_CAPTURE_AND_RETHROW( (op) ) }
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struct init_policy_visitor
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{
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typedef void result_type;
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init_policy_visitor( vesting_policy& po,
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const share_type& begin_balance,
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const fc::time_point_sec& n ):p(po),init_balance(begin_balance),now(n){}
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vesting_policy& p;
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share_type init_balance;
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fc::time_point_sec now;
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void operator()( const linear_vesting_policy_initializer& i )const
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{
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linear_vesting_policy policy;
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policy.begin_timestamp = i.begin_timestamp;
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policy.vesting_cliff_seconds = i.vesting_cliff_seconds;
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policy.vesting_duration_seconds = i.vesting_duration_seconds;
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policy.begin_balance = init_balance;
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p = policy;
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}
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void operator()( const cdd_vesting_policy_initializer& i )const
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{
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cdd_vesting_policy policy;
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policy.vesting_seconds = i.vesting_seconds;
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policy.start_claim = i.start_claim;
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policy.coin_seconds_earned = 0;
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policy.coin_seconds_earned_last_update = now;
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p = policy;
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}
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};
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object_id_type vesting_balance_create_evaluator::do_apply( const vesting_balance_create_operation& op )
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{ try {
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database& d = db();
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const time_point_sec now = d.head_block_time();
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FC_ASSERT( d.get_balance( op.creator, op.amount.asset_id ) >= op.amount );
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d.adjust_balance( op.creator, -op.amount );
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const vesting_balance_object& vbo = d.create< vesting_balance_object >( [&]( vesting_balance_object& obj )
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{
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//WARNING: The logic to create a vesting balance object is replicated in vesting_balance_worker_type::initializer::init.
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// If making changes to this logic, check if those changes should also be made there as well.
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obj.owner = op.owner;
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obj.balance = op.amount;
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op.policy.visit( init_policy_visitor( obj.policy, op.amount.amount, now ) );
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} );
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return vbo.id;
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} FC_CAPTURE_AND_RETHROW( (op) ) }
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void_result vesting_balance_withdraw_evaluator::do_evaluate( const vesting_balance_withdraw_operation& op )
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{ try {
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const database& d = db();
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const time_point_sec now = d.head_block_time();
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const vesting_balance_object& vbo = op.vesting_balance( d );
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FC_ASSERT( op.owner == vbo.owner, "", ("op.owner", op.owner)("vbo.owner", vbo.owner) );
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FC_ASSERT( vbo.is_withdraw_allowed( now, op.amount ), "", ("now", now)("op", op)("vbo", vbo) );
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assert( op.amount <= vbo.balance ); // is_withdraw_allowed should fail before this check is reached
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/* const account_object& owner_account = */ op.owner( d );
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// TODO: Check asset authorizations and withdrawals
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return void_result();
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} FC_CAPTURE_AND_RETHROW( (op) ) }
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void_result vesting_balance_withdraw_evaluator::do_apply( const vesting_balance_withdraw_operation& op )
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{ try {
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database& d = db();
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const time_point_sec now = d.head_block_time();
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const vesting_balance_object& vbo = op.vesting_balance( d );
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// Allow zero balance objects to stick around, (1) to comply
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// with the chain's "objects live forever" design principle, (2)
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// if it's cashback or worker, it'll be filled up again.
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d.modify( vbo, [&]( vesting_balance_object& vbo )
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{
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vbo.withdraw( now, op.amount );
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} );
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d.adjust_balance( op.owner, op.amount );
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// TODO: Check asset authorizations and withdrawals
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return void_result();
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} FC_CAPTURE_AND_RETHROW( (op) ) }
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} } // graphene::chain
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