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Atmosphere/libraries/libmesosphere/source/kern_k_synchronization_object.cpp
2020-07-31 14:50:52 -07:00

108 lines
3.4 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 KSynchronizationObject::NotifyAvailable() {
MESOSPHERE_ASSERT_THIS();
Kernel::GetSynchronization().OnAvailable(this);
}
void KSynchronizationObject::NotifyAbort(Result abort_reason) {
MESOSPHERE_ASSERT_THIS();
Kernel::GetSynchronization().OnAbort(this, abort_reason);
}
void KSynchronizationObject::Finalize() {
MESOSPHERE_ASSERT_THIS();
/* If auditing, ensure that the object has no waiters. */
#if defined(MESOSPHERE_BUILD_FOR_AUDITING)
{
KScopedSchedulerLock sl;
auto end = this->end();
for (auto it = this->begin(); it != end; ++it) {
KThread *thread = std::addressof(*it);
MESOSPHERE_LOG("KSynchronizationObject::Finalize(%p) with %p (id=%ld) waiting.\n", this, thread, thread->GetId());
}
}
#endif
this->OnFinalizeSynchronizationObject();
KAutoObject::Finalize();
}
void KSynchronizationObject::DebugWaiters() {
MESOSPHERE_ASSERT_THIS();
/* If debugging, dump the list of waiters. */
#if defined(MESOSPHERE_BUILD_FOR_DEBUGGING)
{
KScopedSchedulerLock sl;
MESOSPHERE_RELEASE_LOG("Threads waiting on %p:\n", this);
bool has_waiters = false;
auto end = this->end();
for (auto it = this->begin(); it != end; ++it) {
KThread *thread = std::addressof(*it);
if (KProcess *process = thread->GetOwnerProcess(); process != nullptr) {
MESOSPHERE_RELEASE_LOG(" %p tid=%ld pid=%ld (%s)\n", thread, thread->GetId(), process->GetId(), process->GetName());
} else {
MESOSPHERE_RELEASE_LOG(" %p tid=%ld (Kernel)\n", thread, thread->GetId());
}
has_waiters = true;
}
/* If we didn't have any waiters, print so. */
if (!has_waiters) {
MESOSPHERE_RELEASE_LOG(" None\n");
}
}
#endif
}
KSynchronizationObject::iterator KSynchronizationObject::RegisterWaitingThread(KThread *thread) {
MESOSPHERE_ASSERT_THIS();
return this->thread_list.insert(this->thread_list.end(), *thread);
}
KSynchronizationObject::iterator KSynchronizationObject::UnregisterWaitingThread(KSynchronizationObject::iterator it) {
MESOSPHERE_ASSERT_THIS();
return this->thread_list.erase(it);
}
KSynchronizationObject::iterator KSynchronizationObject::begin() {
MESOSPHERE_ASSERT_THIS();
return this->thread_list.begin();
}
KSynchronizationObject::iterator KSynchronizationObject::end() {
MESOSPHERE_ASSERT_THIS();
return this->thread_list.end();
}
}