71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* Copyright (C) 2019-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "abstract_function.hh"
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#include "scalar_function.hh"
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#include "lua.hh"
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namespace cql3 {
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namespace functions {
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class user_function final : public abstract_function, public scalar_function {
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std::vector<sstring> _arg_names;
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sstring _body;
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sstring _language;
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bool _called_on_null_input;
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sstring _bitcode;
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// FIXME: We should not need a copy in each function. It is here
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// because user_function::execute is only passed the
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// cql_serialization_format and the runtime arguments. We could
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// avoid it by having a runtime->execute(user_function) instead,
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// but that is a large refactoring. We could also store a
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// lua_runtime in a thread_local variable, but that is one extra
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// global.
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lua::runtime_config _cfg;
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public:
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user_function(function_name name, std::vector<data_type> arg_types, std::vector<sstring> arg_names, sstring body,
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sstring language, data_type return_type, bool called_on_null_input, sstring bitcode,
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lua::runtime_config cfg);
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const std::vector<sstring>& arg_names() const { return _arg_names; }
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const sstring& body() const { return _body; }
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const sstring& language() const { return _language; }
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bool called_on_null_input() const { return _called_on_null_input; }
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virtual bool is_pure() const override;
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virtual bool is_native() const override;
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virtual bool is_aggregate() const override;
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virtual bool requires_thread() const override;
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virtual bytes_opt execute(cql_serialization_format sf, const std::vector<bytes_opt>& parameters) override;
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};
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}
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}
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