mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
94 lines
3.4 KiB
C++
94 lines
3.4 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 "os_waitable_holder_base.hpp"
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namespace ams::os::impl {
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class WaitableManagerImpl {
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public:
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static constexpr size_t MaximumHandleCount = 0x40;
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static constexpr s32 WaitInvalid = -3;
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static constexpr s32 WaitCancelled = -2;
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static constexpr s32 WaitTimedOut = -1;
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using ListType = util::IntrusiveListMemberTraits<&WaitableHolderBase::manager_node>::ListType;
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private:
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ListType waitable_list;
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WaitableHolderBase *signaled_holder;
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u64 current_time;
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Mutex lock;
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Handle waiting_thread_handle;
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private:
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WaitableHolderBase *WaitAnyImpl(bool infinite, u64 timeout);
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WaitableHolderBase *WaitAnyHandleImpl(bool infinite, u64 timeout);
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s32 WaitSynchronization(Handle *handles, size_t count, u64 timeout);
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size_t BuildHandleArray(Handle *out_handles, WaitableHolderBase **out_objects);
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WaitableHolderBase *LinkHoldersToObjectList();
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void UnlinkHoldersFromObjectList();
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WaitableHolderBase *RecalculateNextTimeout(u64 *out_min_timeout, u64 end_time);
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public:
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/* Wait. */
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WaitableHolderBase *WaitAny() {
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return this->WaitAnyImpl(true, U64_MAX);
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}
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WaitableHolderBase *TryWaitAny() {
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return this->WaitAnyImpl(false, 0);
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}
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WaitableHolderBase *TimedWaitAny(u64 timeout) {
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return this->WaitAnyImpl(false, timeout);
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}
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/* List management. */
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bool IsEmpty() const {
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return this->waitable_list.empty();
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}
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void LinkWaitableHolder(WaitableHolderBase &holder_base) {
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this->waitable_list.push_back(holder_base);
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}
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void UnlinkWaitableHolder(WaitableHolderBase &holder_base) {
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this->waitable_list.erase(this->waitable_list.iterator_to(holder_base));
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}
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void UnlinkAll() {
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while (!this->IsEmpty()) {
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this->waitable_list.front().SetManager(nullptr);
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this->waitable_list.pop_front();
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}
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}
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void MoveAllFrom(WaitableManagerImpl &other) {
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/* Set manager for all of the other's waitables. */
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for (auto &w : other.waitable_list) {
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w.SetManager(this);
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}
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this->waitable_list.splice(this->waitable_list.end(), other.waitable_list);
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}
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/* Other. */
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u64 GetCurrentTime() const {
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return this->current_time;
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}
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void SignalAndWakeupThread(WaitableHolderBase *holder_base);
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};
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}
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