Atmosphere/libraries/libmesosphere/source/kern_k_event.cpp

59 lines
1.9 KiB
C++

/*
* Copyright (c) 2018-2020 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();
/* Increment reference count. */
/* Because reference count is one on creation, this will result */
/* in a reference count of two. Thus, when both readable and */
/* writable events are closed this object will be destroyed. */
this->Open();
/* Create our sub events. */
KAutoObject::Create(std::addressof(this->readable_event));
KAutoObject::Create(std::addressof(this->writable_event));
/* Initialize our sub sessions. */
this->readable_event.Initialize(this);
this->writable_event.Initialize(this);
/* Set our owner process. */
this->owner = GetCurrentProcessPointer();
this->owner->Open();
/* Mark initialized. */
this->initialized = true;
}
void KEvent::Finalize() {
MESOSPHERE_ASSERT_THIS();
KAutoObjectWithSlabHeapAndContainer<KEvent, KAutoObjectWithList>::Finalize();
}
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();
}
}