subgroup_info.hpp

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#pragma once

#include <cstdint>
#include <functional>
#include <list>
#include <map>
#include <memory>
#include <typeindex>
#include <vector>

#include "derecho_exception.hpp"

namespace derecho {

class View;
class SubView;

class subgroup_provisioning_exception : public derecho_exception {
public:
    subgroup_provisioning_exception(const std::string& message = "") : derecho_exception(message) {}
};

using subgroup_shard_layout_t = std::vector<std::vector<SubView>>;

using subgroup_allocation_map_t = std::map<std::type_index, subgroup_shard_layout_t>;

using shard_view_generator_t = std::function<subgroup_allocation_map_t(
        const std::vector<std::type_index>&,
        const std::unique_ptr<View>&,
        View&)>;

struct SubgroupInfo {
    const shard_view_generator_t subgroup_membership_function;

    SubgroupInfo(const shard_view_generator_t& subgroup_membership_function)
            : subgroup_membership_function(subgroup_membership_function) {}
};

}  // namespace derecho