mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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97 lines
3.4 KiB
C++
97 lines
3.4 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_packet_factory.hpp"
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namespace ams::htclow {
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void PacketFactory::Delete(Packet *packet) {
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PacketDeleter{m_allocator}(packet);
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}
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std::unique_ptr<Packet, PacketDeleter> PacketFactory::MakeSendPacketCommon(impl::ChannelInternalType channel, s16 version, int body_size) {
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/* Allocate memory for the packet. */
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if (void *buffer = m_allocator->Allocate(sizeof(Packet), alignof(Packet)); buffer != nullptr) {
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/* Convert the buffer to a packet. */
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Packet *packet = static_cast<Packet *>(buffer);
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/* Construct the packet. */
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std::construct_at(packet, m_allocator, body_size + sizeof(PacketHeader));
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/* Create the unique pointer. */
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std::unique_ptr<Packet, PacketDeleter> ptr(packet, PacketDeleter{m_allocator});
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/* Set packet header fields. */
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if (ptr && ptr->IsAllocationSucceeded()) {
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PacketHeader *header = ptr->GetHeader();
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header->signature = HtcGen2Signature;
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header->offset = 0;
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header->reserved = 0;
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header->body_size = body_size;
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header->version = version;
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header->channel = channel;
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header->share = 0;
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}
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return ptr;
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} else {
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return std::unique_ptr<Packet, PacketDeleter>(nullptr, PacketDeleter{m_allocator});
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}
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}
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std::unique_ptr<Packet, PacketDeleter> PacketFactory::MakeDataPacket(impl::ChannelInternalType channel, s16 version, const void *body, int body_size, u64 share, u32 offset) {
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auto packet = this->MakeSendPacketCommon(channel, version, body_size);
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if (packet) {
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PacketHeader *header = packet->GetHeader();
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header->packet_type = PacketType_Data;
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header->offset = offset;
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header->share = share;
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packet->CopyBody(body, body_size);
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AMS_ASSERT(packet->GetBodySize() == body_size);
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}
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return packet;
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}
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std::unique_ptr<Packet, PacketDeleter> PacketFactory::MakeMaxDataPacket(impl::ChannelInternalType channel, s16 version, u64 share) {
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auto packet = this->MakeSendPacketCommon(channel, version, 0);
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if (packet) {
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PacketHeader *header = packet->GetHeader();
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header->packet_type = PacketType_MaxData;
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header->share = share;
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}
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return packet;
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}
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std::unique_ptr<Packet, PacketDeleter> PacketFactory::MakeErrorPacket(impl::ChannelInternalType channel) {
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auto packet = this->MakeSendPacketCommon(channel, 0, 0);
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if (packet) {
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PacketHeader *header = packet->GetHeader();
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header->packet_type = PacketType_Error;
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}
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return packet;
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}
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}
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