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https://github.com/Atmosphere-NX/Atmosphere.git
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609a302e16
This implements waitable management for Events (and implements Events). It also refactors PM to use new Event/Waitable semantics, and also adds STS_ASSERT as a macro for asserting a boolean expression. The rest of stratosphere has been refactored to use STS_ASSERT whenever possible.
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2019 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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#include <stratosphere.hpp>
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#include "impl/os_waitable_holder_impl.hpp"
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#include "impl/os_waitable_manager_impl.hpp"
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namespace sts::os {
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WaitableManager::WaitableManager() {
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/* Initialize storage. */
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new (GetPointer(this->impl_storage)) impl::WaitableManagerImpl();
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}
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WaitableManager::~WaitableManager() {
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auto &impl = GetReference(this->impl_storage);
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/* Don't allow destruction of a non-empty waitable holder. */
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STS_ASSERT(impl.IsEmpty());
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impl.~WaitableManagerImpl();
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}
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/* Wait. */
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WaitableHolder *WaitableManager::WaitAny() {
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auto &impl = GetReference(this->impl_storage);
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/* Don't allow waiting on empty list. */
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STS_ASSERT(!impl.IsEmpty());
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return reinterpret_cast<WaitableHolder *>(impl.WaitAny());
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}
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WaitableHolder *WaitableManager::TryWaitAny() {
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auto &impl = GetReference(this->impl_storage);
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/* Don't allow waiting on empty list. */
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STS_ASSERT(!impl.IsEmpty());
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return reinterpret_cast<WaitableHolder *>(impl.TryWaitAny());
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}
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WaitableHolder *WaitableManager::TimedWaitAny(u64 timeout) {
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auto &impl = GetReference(this->impl_storage);
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/* Don't allow waiting on empty list. */
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STS_ASSERT(!impl.IsEmpty());
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return reinterpret_cast<WaitableHolder *>(impl.TimedWaitAny(timeout));
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}
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/* Link. */
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void WaitableManager::LinkWaitableHolder(WaitableHolder *holder) {
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auto &impl = GetReference(this->impl_storage);
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auto holder_base = reinterpret_cast<impl::WaitableHolderBase *>(GetPointer(holder->impl_storage));
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/* Don't allow double-linking a holder. */
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STS_ASSERT(!holder_base->IsLinkedToManager());
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impl.LinkWaitableHolder(*holder_base);
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holder_base->SetManager(&impl);
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}
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void WaitableManager::UnlinkAll() {
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auto &impl = GetReference(this->impl_storage);
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impl.UnlinkAll();
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}
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void WaitableManager::MoveAllFrom(WaitableManager *other) {
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auto &dst_impl = GetReference(this->impl_storage);
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auto &src_impl = GetReference(other->impl_storage);
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dst_impl.MoveAllFrom(src_impl);
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}
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}
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