mirror of
https://github.com/Atmosphere-NX/Atmosphere
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40 lines
1.2 KiB
C++
40 lines
1.2 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 <stratosphere.hpp>
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namespace ams::erpt::srv {
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class RefCount {
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private:
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static constexpr u32 MaxReferenceCount = 1000;
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std::atomic<u32> m_ref_count;
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public:
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RefCount() : m_ref_count(0) { /* ... */ }
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void AddReference() {
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const auto prev = m_ref_count.fetch_add(1);
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AMS_ABORT_UNLESS(prev <= MaxReferenceCount);
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}
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bool RemoveReference() {
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auto prev = m_ref_count.fetch_sub(1);
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AMS_ABORT_UNLESS(prev != 0);
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return prev == 1;
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}
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};
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}
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