mirror of
https://github.com/Atmosphere-NX/Atmosphere
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103 lines
4.3 KiB
C++
103 lines
4.3 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vapours.hpp>
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#include <stratosphere/os/os_message_queue_common.hpp>
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#include <stratosphere/os/os_waitable_api.hpp>
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#include <stratosphere/os/os_waitable_types.hpp>
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namespace ams::os {
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namespace impl {
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class AutoWaitableHolder {
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private:
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WaitableHolderType m_holder;
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public:
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template<typename T>
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ALWAYS_INLINE explicit AutoWaitableHolder(WaitableManagerType *manager, T &&arg) {
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InitializeWaitableHolder(std::addressof(m_holder), std::forward<T>(arg));
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LinkWaitableHolder(manager, std::addressof(m_holder));
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}
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ALWAYS_INLINE ~AutoWaitableHolder() {
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UnlinkWaitableHolder(std::addressof(m_holder));
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FinalizeWaitableHolder(std::addressof(m_holder));
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}
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ALWAYS_INLINE std::pair<WaitableHolderType *, int> ConvertResult(const std::pair<WaitableHolderType *, int> result, int index) {
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if (result.first == std::addressof(m_holder)) {
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return std::make_pair(static_cast<WaitableHolderType *>(nullptr), index);
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} else {
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return result;
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}
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}
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};
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template<typename F>
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inline std::pair<WaitableHolderType *, int> WaitAnyImpl(F &&func, WaitableManagerType *manager, int) {
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return std::pair<WaitableHolderType *, int>(func(manager), -1);
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}
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template<typename F, typename T, typename... Args>
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inline std::pair<WaitableHolderType *, int> WaitAnyImpl(F &&func, WaitableManagerType *manager, int index, T &&x, Args &&... args) {
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AutoWaitableHolder holder(manager, std::forward<T>(x));
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return holder.ConvertResult(WaitAnyImpl(std::forward<F>(func), manager, index + 1, std::forward<Args>(args)...), index);
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}
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template<typename F, typename... Args>
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inline std::pair<WaitableHolderType *, int> WaitAnyImpl(F &&func, WaitableManagerType *manager, Args &&... args) {
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return WaitAnyImpl(std::forward<F>(func), manager, 0, std::forward<Args>(args)...);
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}
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class TempWaitableManager {
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private:
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WaitableManagerType m_manager;
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public:
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ALWAYS_INLINE TempWaitableManager() {
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os::InitializeWaitableManager(std::addressof(m_manager));
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}
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ALWAYS_INLINE ~TempWaitableManager() {
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os::FinalizeWaitableManager(std::addressof(m_manager));
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}
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WaitableManagerType *Get() {
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return std::addressof(m_manager);
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}
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};
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template<typename F, typename... Args>
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inline std::pair<WaitableHolderType *, int> WaitAnyImpl(F &&func, Args &&... args) {
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TempWaitableManager temp_manager;
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return WaitAnyImpl(std::forward<F>(func), temp_manager.Get(), 0, std::forward<Args>(args)...);
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}
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using WaitAnyFunction = WaitableHolderType * (*)(WaitableManagerType *);
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}
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template<typename... Args> requires (sizeof...(Args) > 0)
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inline std::pair<WaitableHolderType *, int> WaitAny(WaitableManagerType *manager, Args &&... args) {
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return impl::WaitAnyImpl(static_cast<impl::WaitAnyFunction>(&::ams::os::WaitAny), manager, std::forward<Args>(args)...);
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}
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template<typename... Args> requires (sizeof...(Args) > 0)
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inline int WaitAny(Args &&... args) {
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return impl::WaitAnyImpl(static_cast<impl::WaitAnyFunction>(&::ams::os::WaitAny), std::forward<Args>(args)...).second;
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}
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}
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