59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
|
#pragma once
|
||
|
|
#include "component_interface.hpp"
|
||
|
|
|
||
|
|
class component_loader final
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
class premature_shutdown_trigger final : public std::exception
|
||
|
|
{
|
||
|
|
[[nodiscard]] const char* what() const noexcept override
|
||
|
|
{
|
||
|
|
return "Premature shutdown requested";
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
class installer final
|
||
|
|
{
|
||
|
|
static_assert(std::is_base_of_v<component_interface, T>, "component has invalid base class");
|
||
|
|
|
||
|
|
public:
|
||
|
|
installer()
|
||
|
|
{
|
||
|
|
register_component(std::make_unique<T>());
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
static T* get()
|
||
|
|
{
|
||
|
|
for (const auto& component_ : get_components())
|
||
|
|
{
|
||
|
|
if (typeid(*component_.get()) == typeid(T))
|
||
|
|
{
|
||
|
|
return reinterpret_cast<T*>(component_.get());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void register_component(std::unique_ptr<component_interface>&& component);
|
||
|
|
|
||
|
|
static bool pre_start();
|
||
|
|
static void post_unpack();
|
||
|
|
static void pre_destroy();
|
||
|
|
static void clean();
|
||
|
|
|
||
|
|
static void trigger_premature_shutdown();
|
||
|
|
|
||
|
|
private:
|
||
|
|
static std::vector<std::unique_ptr<component_interface>>& get_components();
|
||
|
|
};
|
||
|
|
|
||
|
|
#define REGISTER_COMPONENT(name) \
|
||
|
|
namespace \
|
||
|
|
{ \
|
||
|
|
static component_loader::installer<name> __component; \
|
||
|
|
}
|