read_concern.hpp

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// Copyright 2009-present MongoDB, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include <mongocxx/read_concern-fwd.hpp> // IWYU pragma: export
 
//
 
#include <mongocxx/v1/read_concern.hpp> // IWYU pragma: export
 
#include <memory> // IWYU pragma: keep: backward compatibility, to be removed.
#include <utility>
 
#include <mongocxx/client-fwd.hpp>              // IWYU pragma: keep: backward compatibility, to be removed.
#include <mongocxx/collection-fwd.hpp>          // IWYU pragma: keep: backward compatibility, to be removed.
#include <mongocxx/database-fwd.hpp>            // IWYU pragma: keep: backward compatibility, to be removed.
#include <mongocxx/options/transaction-fwd.hpp> // IWYU pragma: keep: backward compatibility, to be removed.
#include <mongocxx/uri-fwd.hpp>                 // IWYU pragma: keep: backward compatibility, to be removed.
 
#include <bsoncxx/document/value.hpp>
#include <bsoncxx/stdx/optional.hpp> // IWYU pragma: keep: backward compatibility, to be removed.
#include <bsoncxx/stdx/string_view.hpp>
 
#include <mongocxx/options/transaction.hpp> // IWYU pragma: keep: backward compatibility, to be removed.
 
#include <mongocxx/config/prelude.hpp>
 
namespace mongocxx {
namespace v_noabi {

class read_concern {
   private:
    v1::read_concern _rc;
 
   public:
    enum class level {
        k_local,          
        k_majority,       
        k_linearizable,   
        k_server_default, 
        k_unknown,        
        k_available,      
        k_snapshot        
    };

    read_concern() = default;

    /* explicit(false) */ read_concern(v1::read_concern rc) : _rc{std::move(rc)} {}

    explicit operator v1::read_concern() && {
        return std::move(_rc);
    }

    explicit operator v1::read_concern() const& {
        return _rc;
    }

    MONGOCXX_ABI_EXPORT_CDECL(void) acknowledge_level(level rc_level);

    level acknowledge_level() const {
        return static_cast<level>(_rc.acknowledge_level());
    }

    void acknowledge_string(bsoncxx::v1::stdx::string_view rc_string) {
        _rc.acknowledge_string(rc_string);
    }

    bsoncxx::v1::stdx::string_view acknowledge_string() const {
        auto ret = _rc.acknowledge_string();
        if (ret.empty()) {
            ret = "";
        }
        return ret;
    }

    bsoncxx::v_noabi::document::value to_document() const {
        return bsoncxx::v_noabi::from_v1(_rc.to_document());
    }

    friend bool operator==(read_concern const& lhs, read_concern const& rhs) {
        return lhs.acknowledge_level() == rhs.acknowledge_level();
    }
 
    friend bool operator!=(read_concern const& lhs, read_concern const& rhs) {
        return !(lhs == rhs);
    }

 
    class internal;
};

inline v_noabi::read_concern from_v1(v1::read_concern v) {
    return {std::move(v)};
}

inline v1::read_concern to_v1(v_noabi::read_concern v) {
    return v1::read_concern{std::move(v)};
}
 
} // namespace v_noabi
} // namespace mongocxx
 
#include <mongocxx/config/postlude.hpp>