mirror of https://github.com/Icinga/icinga2.git
107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program 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 this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef FUNCTION_H
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#define FUNCTION_H
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#include "base/i2-base.hpp"
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#include "base/function-ti.hpp"
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#include "base/value.hpp"
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#include "base/functionwrapper.hpp"
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#include "base/scriptglobal.hpp"
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#include <vector>
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namespace icinga
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{
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/**
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* A script function that can be used to execute a script task.
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*
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* @ingroup base
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*/
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class Function final : public ObjectImpl<Function>
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{
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public:
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DECLARE_OBJECT(Function);
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typedef std::function<Value (const std::vector<Value>& arguments)> Callback;
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template<typename F>
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Function(const String& name, F function, const std::vector<String>& args = std::vector<String>(),
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bool side_effect_free = false, bool deprecated = false)
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: Function(name, WrapFunction(function), args, side_effect_free, deprecated)
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{ }
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Value Invoke(const std::vector<Value>& arguments = std::vector<Value>());
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Value InvokeThis(const Value& otherThis, const std::vector<Value>& arguments = std::vector<Value>());
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bool IsSideEffectFree() const
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{
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return GetSideEffectFree();
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}
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bool IsDeprecated() const
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{
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return GetDeprecated();
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}
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static Object::Ptr GetPrototype();
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Object::Ptr Clone() const override;
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private:
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Callback m_Callback;
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Function(const String& name, Callback function, const std::vector<String>& args,
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bool side_effect_free, bool deprecated);
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};
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/* Ensure that the priority is lower than the basic namespace initialization in scriptframe.cpp. */
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#define REGISTER_FUNCTION(ns, name, callback, args) \
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INITIALIZE_ONCE_WITH_PRIORITY([]() { \
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Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), false); \
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Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
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nsp->SetAttribute(#name, std::make_shared<ConstEmbeddedNamespaceValue>(sf)); \
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}, 10)
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#define REGISTER_SAFE_FUNCTION(ns, name, callback, args) \
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INITIALIZE_ONCE_WITH_PRIORITY([]() { \
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Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), true); \
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Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
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nsp->SetAttribute(#name, std::make_shared<ConstEmbeddedNamespaceValue>(sf)); \
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}, 10)
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#define REGISTER_FUNCTION_NONCONST(ns, name, callback, args) \
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INITIALIZE_ONCE_WITH_PRIORITY([]() { \
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Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), false); \
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Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
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nsp->SetAttribute(#name, std::make_shared<EmbeddedNamespaceValue>(sf)); \
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}, 10)
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#define REGISTER_SAFE_FUNCTION_NONCONST(ns, name, callback, args) \
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INITIALIZE_ONCE_WITH_PRIORITY([]() { \
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Function::Ptr sf = new icinga::Function(#ns "#" #name, callback, String(args).Split(":"), true); \
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Namespace::Ptr nsp = ScriptGlobal::Get(#ns); \
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nsp->SetAttribute(#name, std::make_shared<EmbeddedNamespaceValue>(sf)); \
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}, 10)
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}
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#endif /* FUNCTION_H */
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