mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "htc_observer.hpp"
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#include "../../htcs/impl/htcs_manager.hpp"
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namespace ams::htc::server {
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Observer::Observer(const HtcmiscImpl &misc_impl)
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: m_connect_event(os::EventClearMode_ManualClear, true),
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m_disconnect_event(os::EventClearMode_ManualClear, true),
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m_stop_event(os::EventClearMode_ManualClear),
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m_misc_impl(misc_impl),
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m_thread_running(false),
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m_stopped(false),
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m_connected(false),
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m_is_service_available(false)
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{
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/* Initialize htcs library. */
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htcs::impl::HtcsManagerHolder::AddReference();
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/* Update our event state. */
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this->UpdateEvent();
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/* Start. */
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R_ABORT_UNLESS(this->Start());
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}
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Result Observer::Start() {
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/* Check that we're not already running. */
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AMS_ASSERT(!m_thread_running);
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/* Create the thread. */
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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)));
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/* Set the thread name pointer. */
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os::SetThreadNamePointer(std::addressof(m_observer_thread), AMS_GET_SYSTEM_THREAD_NAME(htc, HtcObserver));
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/* Mark our thread as running. */
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m_thread_running = true;
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m_stopped = false;
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/* Start our thread. */
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os::StartThread(std::addressof(m_observer_thread));
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return ResultSuccess();
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}
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void Observer::UpdateEvent() {
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if (m_connected && m_is_service_available) {
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m_disconnect_event.Clear();
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m_connect_event.Signal();
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} else {
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m_connect_event.Clear();
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m_disconnect_event.Signal();
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}
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}
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void Observer::ObserverThreadBody() {
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/* When we're done observing, clear our state. */
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ON_SCOPE_EXIT {
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m_connected = false;
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m_is_service_available = false;
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this->UpdateEvent();
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};
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/* Get the htcs manager. */
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auto * const htcs_manager = htcs::impl::HtcsManagerHolder::GetHtcsManager();
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/* Get the events we're waiting on. */
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os::EventType * const stop_event = m_stop_event.GetBase();
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os::EventType * const conn_event = m_misc_impl.GetConnectionEvent();
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os::EventType * const htcs_event = htcs_manager->GetServiceAvailabilityEvent();
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/* Loop until we're asked to stop. */
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while (!m_stopped) {
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/* Wait for an event to be signaled. */
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const auto index = os::WaitAny(stop_event, conn_event /*, htcs_event */);
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switch (index) {
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case 0:
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/* Stop event, just break out of the loop. */
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os::ClearEvent(stop_event);
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break;
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case 1:
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/* Connection event, update our connection status. */
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os::ClearEvent(conn_event);
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m_connected = m_misc_impl.IsConnected();
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break;
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case 2:
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/* Htcs event, update our service status. */
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os::ClearEvent(htcs_event);
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m_is_service_available = htcs_manager->IsServiceAvailable();
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break;
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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/* If the event was our stop event, break. */
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if (index == 0) {
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break;
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}
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/* Update event status. */
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this->UpdateEvent();
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}
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}
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}
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