Atmosphere/libraries/libstratosphere/include/stratosphere/sf/sf_service_object.hpp
2020-11-14 03:37:51 -08:00

120 lines
5 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "sf_common.hpp"
#include "sf_out.hpp"
namespace ams::sf {
class IServiceObject {
public:
virtual ~IServiceObject() { /* ... */ }
};
template<typename T>
concept IsServiceObject = std::derived_from<T, IServiceObject>;
class IMitmServiceObject : public IServiceObject {
public:
virtual ~IMitmServiceObject() { /* ... */ }
};
class MitmServiceImplBase {
protected:
std::shared_ptr<::Service> forward_service;
sm::MitmProcessInfo client_info;
public:
MitmServiceImplBase(std::shared_ptr<::Service> &&s, const sm::MitmProcessInfo &c) : forward_service(std::move(s)), client_info(c) { /* ... */ }
};
template<typename T>
concept IsMitmServiceObject = IsServiceObject<T> && std::derived_from<T, IMitmServiceObject>;
template<typename T>
concept IsMitmServiceImpl = requires (std::shared_ptr<::Service> &&s, const sm::MitmProcessInfo &c) {
{ T(std::forward<std::shared_ptr<::Service>>(s), c) };
{ T::ShouldMitm(c) } -> std::same_as<bool>;
};
template<typename Interface, typename Impl, typename... Arguments>
requires std::constructible_from<Impl, Arguments...>
constexpr ALWAYS_INLINE std::shared_ptr<typename Interface::ImplHolder<Impl>> MakeShared(Arguments &&... args) {
return std::make_shared<typename Interface::ImplHolder<Impl>>(std::forward<Arguments>(args)...);
}
template<typename Interface, typename Impl, typename... Arguments>
requires (std::constructible_from<Impl, Arguments...> && std::derived_from<Impl, std::enable_shared_from_this<Impl>>)
constexpr ALWAYS_INLINE std::shared_ptr<typename Interface::ImplSharedPointer<Impl>> MakeShared(Arguments &&... args) {
return std::make_shared<typename Interface::ImplSharedPointer<Impl>>(std::make_shared<Impl>(std::forward<Arguments>(args)...));
}
template<typename T>
class ServiceObjectAllocatorImpl {
private:
template<typename>
friend class ServiceObjectAllocatorImpl;
public:
using value_type = T;
private:
MemoryResource * const memory_resource;
public:
constexpr ServiceObjectAllocatorImpl(MemoryResource *mr) : memory_resource(mr) { /* ... */ }
template<typename U>
constexpr ServiceObjectAllocatorImpl(const ServiceObjectAllocatorImpl<U> &rhs) : memory_resource(rhs.memory_resource) { /* ... */ }
value_type *allocate(size_t n) const {
void *mem = this->memory_resource->Allocate(n * sizeof(value_type), alignof(value_type));
AMS_ABORT_UNLESS(mem != nullptr);
return static_cast<value_type *>(mem);
}
void deallocate(void *p, size_t n) const {
this->memory_resource->Deallocate(p, n * sizeof(value_type), alignof(value_type));
}
template<typename U>
inline bool operator==(const ServiceObjectAllocatorImpl<U> &rhs) const {
return this->memory_resource->is_equal(*rhs->memory_resource);
}
template<typename U>
inline bool operator!=(const ServiceObjectAllocatorImpl<U> &rhs) const {
return !(*this == rhs);
}
};
template <typename Interface, typename Impl>
using ServiceObjectAllocator = ServiceObjectAllocatorImpl<typename Interface::ImplHolder<Impl>>;
template<typename Interface, typename Impl, typename Allocator, typename... Arguments>
requires std::constructible_from<Impl, Arguments...>
constexpr ALWAYS_INLINE std::shared_ptr<typename Interface::ImplHolder<Impl>> AllocateShared(const Allocator &allocator, Arguments &&... args) {
return std::allocate_shared<typename Interface::ImplHolder<Impl>>(allocator, std::forward<Arguments>(args)...);
}
template<typename Interface, typename Impl>
constexpr ALWAYS_INLINE std::shared_ptr<typename Interface::ImplPointer<Impl>> GetSharedPointerTo(Impl *impl) {
return std::make_shared<typename Interface::ImplPointer<Impl>>(impl);
}
template<typename Interface, typename Impl>
constexpr ALWAYS_INLINE std::shared_ptr<typename Interface::ImplPointer<Impl>> GetSharedPointerTo(Impl &impl) {
return GetSharedPointerTo<Interface, Impl>(std::addressof(impl));
}
}