Add user data to FunctionalTask

Author: bluekyu

render_pipeline/rppanda/task/functional_task.hpp

@@ -35,10 +35,13 @@ class RENDER_PIPELINE_DECL FunctionalTask : public AsyncTask
     using TaskFunc = std::function<DoneStatus(FunctionalTask*)>;
     using BirthFunc = std::function<void(FunctionalTask*)>;
     using DeathFunc = std::function<void(FunctionalTask*, bool)>;
+    using UserDataType = std::shared_ptr<void>;
 
 public:
     FunctionalTask(const TaskFunc& func = nullptr, const std::string& name = {});
+    FunctionalTask(const TaskFunc& func, const UserDataType& data, const std::string& name = {});
     FunctionalTask(TaskFunc&& func, const std::string& name = {});
+    FunctionalTask(TaskFunc&& func, const UserDataType& data, const std::string& name = {});
 
     ALLOC_DELETED_CHAIN(FunctionalTask);
 
@@ -56,6 +59,9 @@ class RENDER_PIPELINE_DECL FunctionalTask : public AsyncTask
     void set_upon_death(DeathFunc&& func);
     const DeathFunc& get_upon_death() const;
 
+    void set_user_data(const UserDataType& data);
+    UserDataType get_user_data() const;
+
 protected:
     bool is_runnable() override;
     DoneStatus do_task() override;
@@ -66,6 +72,7 @@ class RENDER_PIPELINE_DECL FunctionalTask : public AsyncTask
     TaskFunc function_;
     BirthFunc upon_birth_;
     DeathFunc upon_death_;
+    UserDataType user_data_;
 
 public:
     static TypeHandle get_class_type();
@@ -124,6 +131,16 @@ inline const FunctionalTask::DeathFunc& FunctionalTask::get_upon_death() const
     return upon_death_;
 }
 
+inline void FunctionalTask::set_user_data(const UserDataType& data)
+{
+    user_data_ = data;
+}
+
+inline FunctionalTask::UserDataType FunctionalTask::get_user_data() const
+{
+    return user_data_;
+}
+
 inline bool FunctionalTask::is_runnable()
 {
     return bool(function_);

src/rppanda/task/functional_task.cpp

@@ -25,14 +25,27 @@ namespace rppanda {
 
 TypeHandle FunctionalTask::type_handle_;
 
-FunctionalTask::FunctionalTask(const TaskFunc& func, const std::string& name) : AsyncTask(name), function_(func)
+FunctionalTask::FunctionalTask(const TaskFunc& func, const std::string& name) :
+    FunctionalTask(func, {}, name)
 {
 }
 
-FunctionalTask::FunctionalTask(TaskFunc&& func, const std::string& name) : AsyncTask(name), function_(func)
+FunctionalTask::FunctionalTask(const TaskFunc& func, const UserDataType& data, const std::string& name) :
+    AsyncTask(name), function_(func), user_data_(data)
 {
 }
 
+FunctionalTask::FunctionalTask(TaskFunc&& func, const std::string& name) :
+    FunctionalTask(std::move(func), {}, name)
+{
+}
+
+FunctionalTask::FunctionalTask(TaskFunc&& func, const UserDataType& data, const std::string& name) :
+    AsyncTask(name), function_(func), user_data_(data)
+{
+
+}
+
 FunctionalTask::~FunctionalTask() = default;
 
 void FunctionalTask::upon_birth(AsyncTaskManager* manager)