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24b57f0d3a
This makes freezing a namespace an irrevocable operation but in return allows omitting further lock operations. This results in a performance improvement as reading an atomic bool is faster than acquiring and releasing a shared lock. ObjectLocks on namespaces remain untouched as these mostly affect write operations which there should be none of after freezing (if there are some, they will throw exceptions anyways).
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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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->Set(#name, sf, true); \
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}, InitializePriority::RegisterFunctions)
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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->Set(#name, sf, true); \
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}, InitializePriority::RegisterFunctions)
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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->Set(#name, sf, false); \
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}, InitializePriority::RegisterFunctions)
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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, sf, false); \
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}, InitializePriority::RegisterFunctions)
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}
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#endif /* FUNCTION_H */
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