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https://github.com/Icinga/icinga2.git
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1c066fc02e
This commit removes EmbeddedNamespaceValue and ConstEmbeddedNamespaceValue and reduces NamespaceValue down to a simple struct without inheritance or member functions. The code from these clases is inlined into the Namespace class. The class hierarchy determining whether a value is const is moved to an attribute of NamespaceValue. This is done in preparation for changes to the locking in the Namespace class. Currently, it relies on a recursive mutex. In the future, a shared mutex (read/write lock) should be used instead, which cannot allow recursive locking (without failing or risk deadlocking on lock upgrades). With this change, all operations requiring a lock for one operation are within one function, no recursive locking is not needed any more.
89 lines
2.8 KiB
C++
89 lines
2.8 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, 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, 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, true); \
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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, true); \
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}, InitializePriority::RegisterFunctions)
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}
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#endif /* FUNCTION_H */
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