Atmosphere/libraries/libstratosphere/source/htclow/mux/htclow_mux.cpp

/*
 * 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 "htclow_mux.hpp"
#include "../ctrl/htclow_ctrl_state_machine.hpp"

namespace ams::htclow::mux {

    Mux::Mux(PacketFactory *pf, ctrl::HtcctrlStateMachine *sm)
        : m_packet_factory(pf), m_state_machine(sm), m_task_manager(), m_wake_event(os::EventClearMode_ManualClear),
          m_channel_impl_map(pf, sm, std::addressof(m_task_manager), std::addressof(m_wake_event)), m_global_send_buffer(pf),
          m_mutex(), m_is_sleeping(false), m_version(ProtocolVersion)
    {
        /* ... */
    }

    void Mux::SetVersion(u16 version) {
        /* Set our version. */
        m_version = version;

        /* Set all entries in our map. */
        /* NOTE: Nintendo does this highly inefficiently... */
        for (auto &pair : m_channel_impl_map.GetMap()) {
            m_channel_impl_map[pair.first].SetVersion(m_version);
        }
    }

    void Mux::UpdateChannelState() {
        /* Lock ourselves. */
        std::scoped_lock lk(m_mutex);

        /* Update the state of all channels in our map. */
        /* NOTE: Nintendo does this highly inefficiently... */
        for (auto pair : m_channel_impl_map.GetMap()) {
            m_channel_impl_map[pair.first].UpdateState();
        }
    }

    void Mux::UpdateMuxState() {
        /* Lock ourselves. */
        std::scoped_lock lk(m_mutex);

        /* Update whether we're sleeping. */
        if (m_state_machine->IsSleeping()) {
            m_is_sleeping = true;
        } else {
            m_is_sleeping = false;
            m_wake_event.Signal();
        }
    }

}