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/**
* Copyright (C) 2021 Saturneric
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that 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 GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* The source code version of this software was modified and released
* by Saturneric<[email protected]><[email protected]> starting on May 12, 2021.
*
*/
#include "core/thread/FileReadTask.h"
#include <utility>
namespace GpgFrontend::UI {
FileReadTask::FileReadTask(std::string path) {
connect(this, &FileReadTask::SignalFileBytesReadNext, this,
&FileReadTask::read_bytes);
#ifdef WINDOWS
std::filesystem::path read_file_path(
QString::fromStdString(path).toStdU16String());
#else
std::filesystem::path read_file_path(
QString::fromStdString(path).toStdString());
#endif
read_file_path_ = read_file_path;
}
void FileReadTask::Run() {
SetFinishAfterRun(false);
if (is_regular_file(read_file_path_)) {
LOG(INFO) << "read open file" << read_file_path_;
target_file_.setFileName(
QString::fromStdString(read_file_path_.u8string()));
target_file_.open(QIODevice::ReadOnly);
if (!(target_file_.isOpen() && target_file_.isReadable())) {
LOG(ERROR) << "file not open or not readable";
if (target_file_.isOpen()) target_file_.close();
return;
}
LOG(INFO) << "started reading" << read_file_path_;
read_bytes();
} else {
emit SignalFileBytesReadEnd();
}
}
void FileReadTask::read_bytes() {
QByteArray read_buffer;
if (!target_file_.atEnd() &&
(read_buffer = target_file_.read(buffer_size_)).size() > 0) {
LOG(INFO) << "read bytes" << read_buffer.size();
emit SignalFileBytesRead(std::move(read_buffer));
} else {
LOG(INFO) << "read bytes end";
emit SignalFileBytesReadEnd();
// finish task
emit SignalTaskFinished();
}
}
FileReadTask::~FileReadTask() {
LOG(INFO) << "close file" << read_file_path_;
if (target_file_.isOpen()) target_file_.close();
}
} // namespace GpgFrontend::UI
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