peerplays_migrated/libraries/chain/transaction_object.cpp

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2015-06-08 15:50:35 +00:00
/*
* Copyright (c) 2015, Cryptonomex, Inc.
* All rights reserved.
*
* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
* are permitted until September 8, 2015, provided that the following conditions are met:
*
* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <graphene/chain/transaction_object.hpp>
namespace graphene { namespace chain {
const object* transaction_index::create(const std::function<void (object*)>& constructor, object_id_type)
{
transaction_object obj;
obj.id = get_next_available_id();
constructor(&obj);
auto result = _index.insert(std::move(obj));
FC_ASSERT(result.second, "Could not create transaction_object! Most likely a uniqueness constraint is violated.");
return &*result.first;
}
void transaction_index::modify(const object* obj,
const std::function<void (object*)>& m)
{
assert(obj != nullptr);
FC_ASSERT(obj->id < _index.size());
const transaction_object* t = dynamic_cast<const transaction_object*>(obj);
assert(t != nullptr);
auto itr = _index.find(obj->id.instance());
assert(itr != _index.end());
_index.modify(itr, [&m](transaction_object& o) { m(&o); });
}
void transaction_index::add(unique_ptr<object> o)
{
assert(o);
object_id_type id = o->id;
assert(id.space() == transaction_object::space_id);
assert(id.type() == transaction_object::type_id);
assert(id.instance() == size());
auto trx = dynamic_cast<transaction_object*>(o.get());
assert(trx != nullptr);
o.release();
auto result = _index.insert(std::move(*trx));
FC_ASSERT(result.second, "Could not insert transaction_object! Most likely a uniqueness constraint is violated.");
}
void transaction_index::remove(object_id_type id)
{
auto& index = _index.get<instance>();
auto itr = index.find(id.instance());
if( itr == index.end() )
return;
assert(id.space() == transaction_object::space_id);
assert(id.type() == transaction_object::type_id);
index.erase(itr);
}
const object*transaction_index::get(object_id_type id) const
{
if( id.type() != transaction_object::type_id ||
id.space() != transaction_object::space_id )
return nullptr;
auto itr = _index.find(id.instance());
if( itr == _index.end() )
return nullptr;
return &*itr;
}
} } // graphene::chain