Atmosphere/libraries/libstratosphere/source/htc/server/htc_observer.cpp

117 lines
4.2 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 <stratosphere.hpp>
#include "htc_observer.hpp"
namespace ams::htc::server {
Observer::Observer(const HtcmiscImpl &misc_impl)
: m_connect_event(os::EventClearMode_ManualClear, true),
m_disconnect_event(os::EventClearMode_ManualClear, true),
m_stop_event(os::EventClearMode_ManualClear),
m_misc_impl(misc_impl),
m_thread_running(false),
m_stopped(false),
m_connected(false),
m_is_service_available(false)
{
/* Initialize htcs library. */
/* TODO: AMS_ABORT("htcs::impl::HtcsManagerHolder::AddReference();"); */
/* Update our event state. */
this->UpdateEvent();
/* Start. */
R_ABORT_UNLESS(this->Start());
}
Result Observer::Start() {
/* Check that we're not already running. */
AMS_ASSERT(!m_thread_running);
/* Create the thread. */
R_TRY(os::CreateThread(std::addressof(m_observer_thread), ObserverThreadEntry, this, m_observer_thread_stack, sizeof(m_observer_thread_stack), AMS_GET_SYSTEM_THREAD_PRIORITY(htc, HtcObserver)));
/* Set the thread name pointer. */
os::SetThreadNamePointer(std::addressof(m_observer_thread), AMS_GET_SYSTEM_THREAD_NAME(htc, HtcObserver));
/* Mark our thread as running. */
m_thread_running = true;
m_stopped = false;
/* Start our thread. */
os::StartThread(std::addressof(m_observer_thread));
return ResultSuccess();
}
void Observer::UpdateEvent() {
if (m_connected && m_is_service_available) {
m_disconnect_event.Clear();
m_connect_event.Signal();
} else {
m_connect_event.Clear();
m_disconnect_event.Signal();
}
}
void Observer::ObserverThreadBody() {
/* When we're done observing, clear our state. */
ON_SCOPE_EXIT {
m_connected = false;
m_is_service_available = false;
this->UpdateEvent();
};
/* Get the events we're waiting on. */
os::EventType * const stop_event = m_stop_event.GetBase();
os::EventType * const conn_event = m_misc_impl.GetConnectionEvent();
os::EventType * const htcs_event = nullptr /* TODO: htcs::impl::HtcsManagerHolder::GetHtcsManager()->GetServiceAvailabilityEvent() */;
/* Loop until we're asked to stop. */
while (!m_stopped) {
/* Wait for an event to be signaled. */
const auto index = os::WaitAny(stop_event, conn_event /*, htcs_event */);
switch (index) {
case 0:
/* Stop event, just break out of the loop. */
os::ClearEvent(stop_event);
break;
case 1:
/* Connection event, update our connection status. */
os::ClearEvent(conn_event);
m_connected = m_misc_impl.IsConnected();
break;
case 2:
/* Htcs event, update our service status. */
os::ClearEvent(htcs_event);
m_is_service_available = false /* TODO: htcs::impl::HtcsManagerHolder::GetHtcsManager()->IsServiceAvailable() */;
break;
AMS_UNREACHABLE_DEFAULT_CASE();
}
/* If the event was our stop event, break. */
if (index == 0) {
break;
}
/* Update event status. */
this->UpdateEvent();
}
}
}