mirror of
https://github.com/Atmosphere-NX/Atmosphere
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110 lines
3.6 KiB
C++
110 lines
3.6 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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namespace ams::ddsf {
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class IDevice;
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class DeviceCodeEntry {
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NON_COPYABLE(DeviceCodeEntry);
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NON_MOVEABLE(DeviceCodeEntry);
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private:
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ams::DeviceCode device_code = ams::InvalidDeviceCode;
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IDevice *device = nullptr;
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public:
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constexpr DeviceCodeEntry(ams::DeviceCode dc, IDevice *dev) : device_code(dc), device(dev) {
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AMS_ASSERT(dev != nullptr);
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}
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constexpr ams::DeviceCode GetDeviceCode() const {
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return this->device_code;
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}
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constexpr IDevice &GetDevice() {
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return *this->device;
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}
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constexpr const IDevice &GetDevice() const {
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return *this->device;
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}
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};
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class DeviceCodeEntryHolder {
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NON_COPYABLE(DeviceCodeEntryHolder);
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NON_MOVEABLE(DeviceCodeEntryHolder);
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private:
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util::IntrusiveListNode list_node;
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TYPED_STORAGE(DeviceCodeEntry) entry_storage;
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bool is_constructed;
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public:
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using ListTraits = util::IntrusiveListMemberTraitsDeferredAssert<&DeviceCodeEntryHolder::list_node>;
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using List = typename ListTraits::ListType;
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friend class util::IntrusiveList<DeviceCodeEntryHolder, util::IntrusiveListMemberTraitsDeferredAssert<&DeviceCodeEntryHolder::list_node>>;
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public:
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DeviceCodeEntryHolder() : list_node(), entry_storage(), is_constructed(false) {
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/* ... */
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}
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~DeviceCodeEntryHolder() {
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if (this->IsConstructed()) {
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this->Destroy();
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}
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}
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void AddTo(List &list) {
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list.push_back(*this);
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}
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void RemoveFrom(List list) {
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list.erase(list.iterator_to(*this));
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}
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bool IsLinkedToList() const {
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return this->list_node.IsLinked();
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}
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DeviceCodeEntry &Construct(DeviceCode dc, IDevice *dev) {
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AMS_ASSERT(!this->IsConstructed());
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DeviceCodeEntry *entry = new (GetPointer(this->entry_storage)) DeviceCodeEntry(dc, dev);
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this->is_constructed = true;
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return *entry;
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}
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bool IsConstructed() const {
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return this->is_constructed;
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}
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void Destroy() {
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AMS_ASSERT(this->IsConstructed());
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GetReference(this->entry_storage).~DeviceCodeEntry();
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this->is_constructed = false;
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}
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DeviceCodeEntry &Get() {
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AMS_ASSERT(this->IsConstructed());
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return GetReference(this->entry_storage);
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}
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const DeviceCodeEntry &Get() const {
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AMS_ASSERT(this->IsConstructed());
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return GetReference(this->entry_storage);
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}
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};
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static_assert(DeviceCodeEntryHolder::ListTraits::IsValid());
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}
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