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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
/*
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* Copyright (c) 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 "htclow_ctrl_send_buffer.hpp"
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#include "htclow_ctrl_packet_factory.hpp"
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namespace ams::htclow::ctrl {
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bool HtcctrlSendBuffer::IsPriorPacket(HtcctrlPacketType packet_type) const {
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return packet_type == HtcctrlPacketType_DisconnectFromTarget;
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}
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bool HtcctrlSendBuffer::IsPosteriorPacket(HtcctrlPacketType packet_type) const {
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switch (packet_type) {
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case HtcctrlPacketType_ConnectFromTarget:
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case HtcctrlPacketType_ReadyFromTarget:
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case HtcctrlPacketType_SuspendFromTarget:
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case HtcctrlPacketType_ResumeFromTarget:
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case HtcctrlPacketType_BeaconResponse:
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case HtcctrlPacketType_InformationFromTarget:
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return true;
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default:
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return false;
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}
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}
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void HtcctrlSendBuffer::AddPacket(std::unique_ptr<HtcctrlPacket, HtcctrlPacketDeleter> ptr) {
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/* Get the packet. */
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HtcctrlPacket *packet = ptr.release();
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/* Get the packet type. */
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const auto packet_type = packet->GetHeader()->packet_type;
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/* Add the packet to the appropriate list. */
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if (this->IsPriorPacket(packet_type)) {
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m_prior_packet_list.push_back(*packet);
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} else {
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AMS_ABORT_UNLESS(this->IsPosteriorPacket(packet_type));
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m_posterior_packet_list.push_back(*packet);
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}
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}
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void HtcctrlSendBuffer::RemovePacket(const HtcctrlPacketHeader &header) {
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/* Get the packet type. */
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const auto packet_type = header.packet_type;
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/* Remove the front from the appropriate list. */
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HtcctrlPacket *packet;
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if (this->IsPriorPacket(packet_type)) {
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packet = std::addressof(m_prior_packet_list.front());
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m_prior_packet_list.pop_front();
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} else {
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AMS_ABORT_UNLESS(this->IsPosteriorPacket(packet_type));
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packet = std::addressof(m_posterior_packet_list.front());
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m_posterior_packet_list.pop_front();
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}
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/* Delete the packet. */
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m_packet_factory->Delete(packet);
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}
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bool HtcctrlSendBuffer::QueryNextPacket(HtcctrlPacketHeader *header, HtcctrlPacketBody *body, int *out_body_size) {
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if (!m_prior_packet_list.empty()) {
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this->CopyPacket(header, body, out_body_size, m_prior_packet_list.front());
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return true;
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} else if (!m_posterior_packet_list.empty()) {
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this->CopyPacket(header, body, out_body_size, m_posterior_packet_list.front());
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return true;
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} else {
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return false;
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}
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}
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void HtcctrlSendBuffer::CopyPacket(HtcctrlPacketHeader *header, HtcctrlPacketBody *body, int *out_body_size, const HtcctrlPacket &packet) {
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/* Get the body size. */
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const int body_size = packet.GetBodySize();
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AMS_ASSERT(0 <= body_size && body_size <= static_cast<int>(sizeof(*body)));
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/* Copy the header. */
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std::memcpy(header, packet.GetHeader(), sizeof(*header));
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/* Copy the body. */
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std::memcpy(body, packet.GetBody(), body_size);
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/* Set the output body size. */
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*out_body_size = body_size;
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}
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}
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