FixedClient.h

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/*
        This file is part of cpp-ethereum.
 
        cpp-ethereum is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.
 
        cpp-ethereum is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.
 
        You should have received a copy of the GNU General Public License
        along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once

#include <libethereum/ClientBase.h>
#include <libethereum/BlockChain.h>
#include <libethereum/State.h>

namespace dev
{
namespace test
{

class FixedClient: public dev::eth::ClientBase
{
public:
        FixedClient(eth::BlockChain const& _bc, eth::Block const& _block) :  m_bc(_bc), m_block(_block) {}
        virtual ~FixedClient() {}
        
        // stub
        virtual void flushTransactions() override {}
        virtual eth::BlockChain& bc() override { BOOST_THROW_EXCEPTION(InterfaceNotSupported("FixedClient::bc()")); }
        virtual eth::BlockChain const& bc() const override { return m_bc; }
        using ClientBase::block;
        virtual eth::Block block(h256 const& _h) const override;
        virtual eth::Block preSeal() const override { ReadGuard l(x_stateDB); return m_block; }
        virtual eth::Block postSeal() const override { ReadGuard l(x_stateDB); return m_block; }
        virtual void setAuthor(Address const& _us) override { WriteGuard l(x_stateDB); m_block.setAuthor(_us); }
        virtual void prepareForTransaction() override {}

private:
        eth::BlockChain const& m_bc;
        eth::Block m_block;
        mutable SharedMutex x_stateDB;                  
};

}
}