mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-24 13:31:12 +00:00
152 lines
4.3 KiB
C++
152 lines
4.3 KiB
C++
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/*
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* Copyright (c) 2018 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 <switch.h>
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#include <stratosphere.hpp>
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#include "tio_task.hpp"
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void TIOFileReadTask::OnStart(TmaPacket *packet) {
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char path[FS_MAX_PATH];
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packet->ReadString(path, sizeof(path), nullptr);
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packet->Read<u64>(this->size_remaining);
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packet->Read<u64>(this->cur_offset);
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if (strlen(path) == 0) {
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this->SendResult(0x202);
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return;
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}
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Result rc = dmntTargetIOFileOpen(&this->handle, path, FS_OPEN_READ, DmntTIOCreateOption_OpenExisting);
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if (R_FAILED(rc)) {
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this->SendResult(rc);
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return;
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} else {
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auto packet = this->AllocateSendPacket();
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rc = this->ProcessPacket(packet);
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if (R_SUCCEEDED(rc)) {
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this->manager->SendPacket(packet);
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if (this->size_remaining) {
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this->SetNeedsPackets(true);
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} else {
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this->SendResult(rc);
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}
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} else {
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this->manager->FreePacket(packet);
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this->SendResult(rc);
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}
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}
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}
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void TIOFileReadTask::OnSendPacket(TmaPacket *packet) {
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Result rc = this->ProcessPacket(packet);
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if (this->size_remaining == 0 || R_FAILED(rc)) {
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this->SendResult(rc);
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}
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}
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void TIOFileReadTask::SendResult(Result rc) {
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dmntTargetIOFileClose(&this->handle);
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this->SetNeedsPackets(false);
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auto packet = this->AllocateSendPacket();
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packet->Write<Result>(rc);
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this->manager->SendPacket(packet);
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Complete();
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}
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Result TIOFileReadTask::ProcessPacket(TmaPacket *packet) {
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Result rc = 0x196002;
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size_t cur_read = static_cast<u32>((this->size_remaining > MaxDataSize) ? MaxDataSize : this->size_remaining);
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u8 *buf = new u8[cur_read];
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if (buf != nullptr) {
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size_t actual_read = 0;
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rc = dmntTargetIOFileRead(&this->handle, this->cur_offset, buf, cur_read, &actual_read);
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if (R_SUCCEEDED(rc)) {
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packet->Write<Result>(rc);
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packet->Write<u32>(actual_read);
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packet->Write(buf, actual_read);
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this->cur_offset += actual_read;
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this->size_remaining -= actual_read;
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}
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delete buf;
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}
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return rc;
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}
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void TIOFileWriteTask::OnStart(TmaPacket *packet) {
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char path[FS_MAX_PATH];
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packet->ReadString(path, sizeof(path), nullptr);
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packet->Read<u64>(this->size_remaining);
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packet->Read<u64>(this->cur_offset);
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if (strlen(path) == 0) {
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this->SendResult(0x202);
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return;
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}
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Result rc = dmntTargetIOFileOpen(&this->handle, path, FS_OPEN_READ, DmntTIOCreateOption_OpenExisting);
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if (R_FAILED(rc)) {
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this->SendResult(rc);
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}
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}
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void TIOFileWriteTask::OnReceivePacket(TmaPacket *packet) {
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Result rc = this->ProcessPacket(packet);
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if (this->size_remaining == 0 || R_FAILED(rc)) {
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this->SendResult(rc);
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}
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}
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void TIOFileWriteTask::SendResult(Result rc) {
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dmntTargetIOFileClose(&this->handle);
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auto packet = this->AllocateSendPacket();
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packet->Write<Result>(rc);
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this->manager->SendPacket(packet);
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Complete();
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}
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Result TIOFileWriteTask::ProcessPacket(TmaPacket *packet) {
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Result rc = 0x196002;
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/* Note: N does not bounds check this. We do. */
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u32 cur_write = 0;
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packet->Read<u32>(cur_write);
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size_t actual_written = 0;
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if (cur_write < MaxDataSize) {
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if (cur_write > this->size_remaining) {
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cur_write = this->size_remaining;
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}
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rc = dmntTargetIOFileWrite(&this->handle, this->cur_offset, packet->GetCurrentBodyPtr(), cur_write, &actual_written);
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if (R_SUCCEEDED(rc)) {
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this->size_remaining -= actual_written;
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this->cur_offset += actual_written;
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}
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}
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return rc;
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}
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