84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file functionAsyncTask.h
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* @author rdb
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* @date 2021-11-29
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*/
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#ifndef FUNCTIONASYNCTASK_H
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#define FUNCTIONASYNCTASK_H
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#include "pandabase.h"
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#include "asyncTask.h"
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#ifndef CPPPARSER
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#include <functional>
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/**
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* Associates a generic std::function (eg. a lambda) with an AsyncTask object.
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* You can use this when you want to create an AsyncTask without having to
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* subclass.
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*
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* @since 1.11.0
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*/
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class EXPCL_PANDA_EVENT FunctionAsyncTask final : public AsyncTask {
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public:
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typedef std::function<DoneStatus (FunctionAsyncTask *task)> TaskFunction;
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typedef std::function<void (FunctionAsyncTask *task)> BirthFunction;
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typedef std::function<void (FunctionAsyncTask *task, bool clean_exit)> DeathFunction;
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INLINE FunctionAsyncTask(const std::string &name = std::string());
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INLINE FunctionAsyncTask(const std::string &name, TaskFunction function);
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ALLOC_DELETED_CHAIN(FunctionAsyncTask);
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INLINE void set_function(TaskFunction function);
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INLINE const TaskFunction &get_function() const;
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INLINE void set_upon_birth(BirthFunction function);
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INLINE const BirthFunction &get_upon_birth() const;
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INLINE void set_upon_death(DeathFunction function);
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INLINE const DeathFunction &get_upon_death() const;
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protected:
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virtual bool is_runnable() override;
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virtual DoneStatus do_task() override;
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virtual void upon_birth(AsyncTaskManager *manager) override;
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virtual void upon_death(AsyncTaskManager *manager, bool clean_exit) override;
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private:
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TaskFunction _function;
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BirthFunction _upon_birth;
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DeathFunction _upon_death;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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AsyncTask::init_type();
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register_type(_type_handle, "FunctionAsyncTask",
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AsyncTask::get_class_type());
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}
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virtual TypeHandle get_type() const override {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() override {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "functionAsyncTask.I"
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#endif // CPPPARSER
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#endif
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