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Atmosphere/libraries/libmesosphere/source/kern_k_readable_event.cpp
SciresM 96f95b9f95
Integrate new result macros. (#1780)
* result: try out some experimental shenanigans

* result: sketch out some more shenanigans

* result: see what it looks like to convert kernel to use result conds instead of guards

* make rest of kernel use experimental new macro-ing
2022-02-14 14:45:32 -08:00

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1.8 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <mesosphere.hpp>
namespace ams::kern {
void KReadableEvent::Initialize(KEvent *parent) {
MESOSPHERE_ASSERT_THIS();
m_is_signaled = false;
m_parent = parent;
if (m_parent != nullptr) {
m_parent->Open();
}
}
bool KReadableEvent::IsSignaled() const {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());
return m_is_signaled;
}
void KReadableEvent::Destroy() {
MESOSPHERE_ASSERT_THIS();
if (m_parent) {
{
KScopedSchedulerLock sl;
m_parent->OnReadableEventDestroyed();
}
m_parent->Close();
}
}
Result KReadableEvent::Signal() {
MESOSPHERE_ASSERT_THIS();
KScopedSchedulerLock lk;
if (!m_is_signaled) {
m_is_signaled = true;
this->NotifyAvailable();
}
R_SUCCEED();
}
Result KReadableEvent::Reset() {
MESOSPHERE_ASSERT_THIS();
KScopedSchedulerLock lk;
R_UNLESS(m_is_signaled, svc::ResultInvalidState());
m_is_signaled = false;
R_SUCCEED();
}
}