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Atmosphere/libraries/libmesosphere/source/kern_k_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

64 lines
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 KEvent::Initialize() {
MESOSPHERE_ASSERT_THIS();
/* Create our readable event. */
KAutoObject::Create<KReadableEvent>(std::addressof(m_readable_event));
/* Initialize our readable event. */
m_readable_event.Initialize(this);
/* Set our owner process. */
m_owner = GetCurrentProcessPointer();
m_owner->Open();
/* Mark initialized. */
m_initialized = true;
}
void KEvent::Finalize() {
MESOSPHERE_ASSERT_THIS();
}
Result KEvent::Signal() {
KScopedSchedulerLock sl;
R_SUCCEED_IF(m_readable_event_destroyed);
R_RETURN(m_readable_event.Signal());
}
Result KEvent::Clear() {
KScopedSchedulerLock sl;
R_SUCCEED_IF(m_readable_event_destroyed);
R_RETURN(m_readable_event.Clear());
}
void KEvent::PostDestroy(uintptr_t arg) {
/* Release the event count resource the owner process holds. */
KProcess *owner = reinterpret_cast<KProcess *>(arg);
owner->ReleaseResource(ams::svc::LimitableResource_EventCountMax, 1);
owner->Close();
}
}