mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-20 07:08:59 +00:00
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/*
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* Copyright (c) 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 <mesosphere/kern_k_auto_object.hpp>
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#include <mesosphere/kern_slab_helpers.hpp>
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namespace ams::kern {
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class KThread;
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class KSynchronizationObject : public KAutoObjectWithList {
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MESOSPHERE_AUTOOBJECT_TRAITS(KSynchronizationObject, KAutoObject);
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public:
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struct ThreadListNode {
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ThreadListNode *next;
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KThread *thread;
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};
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private:
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ThreadListNode *m_thread_list_head;
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ThreadListNode *m_thread_list_tail;
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protected:
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constexpr ALWAYS_INLINE explicit KSynchronizationObject(util::ConstantInitializeTag) : KAutoObjectWithList(util::ConstantInitialize), m_thread_list_head(), m_thread_list_tail() { MESOSPHERE_ASSERT_THIS(); }
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ALWAYS_INLINE explicit KSynchronizationObject() : m_thread_list_head(), m_thread_list_tail() { MESOSPHERE_ASSERT_THIS(); }
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/* NOTE: This is a virtual function which is overridden only by KDebugBase in Nintendo's kernel. */
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/* virtual void OnFinalizeSynchronizationObject() { MESOSPHERE_ASSERT_THIS(); } */
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void NotifyAvailable(Result result);
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ALWAYS_INLINE void NotifyAvailable() {
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return this->NotifyAvailable(ResultSuccess());
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}
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public:
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static Result Wait(s32 *out_index, KSynchronizationObject **objects, const s32 num_objects, s64 timeout);
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public:
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void Finalize();
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virtual bool IsSignaled() const { AMS_INFINITE_LOOP(); }
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void DumpWaiters();
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ALWAYS_INLINE void LinkNode(ThreadListNode *node) {
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/* Link the node to the list. */
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if (m_thread_list_tail == nullptr) {
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m_thread_list_head = node;
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} else {
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m_thread_list_tail->next = node;
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}
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m_thread_list_tail = node;
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}
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ALWAYS_INLINE void UnlinkNode(ThreadListNode *node) {
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/* Unlink the node from the list. */
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ThreadListNode *prev_ptr = reinterpret_cast<ThreadListNode *>(std::addressof(m_thread_list_head));
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ThreadListNode *prev_val = nullptr;
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ThreadListNode *prev, *tail_prev;
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do {
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prev = prev_ptr;
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prev_ptr = prev_ptr->next;
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tail_prev = prev_val;
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prev_val = prev_ptr;
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} while (prev_ptr != node);
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if (m_thread_list_tail == node) {
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m_thread_list_tail = tail_prev;
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}
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prev->next = node->next;
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}
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};
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}
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