registration_committee.hpp

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#pragma once
 
#include <vector>
#include <set>
#include <functional>
 
#include <scorum/protocol/proposal_operations.hpp>
 
#include <scorum/chain/services/dbs_base.hpp>
 
namespace scorum {
namespace chain {
 
class registration_committee_member_object;
 
struct registration_committee_service_i : public scorum::protocol::registration_committee_i
{
    using committee_member_object_cref_type = std::reference_wrapper<const registration_committee_member_object>;
    using committee_members_cref_type = std::vector<committee_member_object_cref_type>;
 
    virtual committee_members_cref_type get_committee() const = 0;
 
    virtual const registration_committee_member_object& get_member(const account_name_type&) const = 0;
 
    virtual committee_members_cref_type create_committee(const std::vector<account_name_type>& accounts) = 0;
 
    using member_info_modifier_type = std::function<void(registration_committee_member_object&)>;
    virtual void update_member_info(const registration_committee_member_object&,
                                    const member_info_modifier_type& modifier)
        = 0;
};
 
class dbs_registration_committee : public dbs_base, public registration_committee_service_i
{
    friend class dbservice_dbs_factory;
 
protected:
    explicit dbs_registration_committee(database& db);
 
public:
    committee_members_cref_type get_committee() const override;
 
    const registration_committee_member_object& get_member(const account_name_type&) const override;
 
    committee_members_cref_type create_committee(const std::vector<account_name_type>& accounts) override;
 
    using member_info_modifier_type = std::function<void(registration_committee_member_object&)>;
    void update_member_info(const registration_committee_member_object&,
                            const member_info_modifier_type& modifier) override;
 
    size_t get_members_count() const override;
 
    void add_member(const account_name_type&) override;
    void exclude_member(const account_name_type&) override;
 
    void change_add_member_quorum(const percent_type quorum) override;
    void change_exclude_member_quorum(const percent_type quorum) override;
    void change_base_quorum(const percent_type quorum) override;
 
    percent_type get_add_member_quorum() override;
    percent_type get_exclude_member_quorum() override;
    percent_type get_base_quorum() override;
 
    bool is_exists(const account_name_type&) const override;
 
private:
    const registration_committee_member_object& _add_member(const account_object&);
 
    void _exclude_member(const account_object&);
 
    account_service_i& _account_svc;
    registration_pool_service_i& _reg_pool_svc;
};
 
namespace utils {
bool is_quorum(size_t votes, size_t members_count, size_t quorum);
} // namespace utils
 
} // namespace chain
} // namespace scorum