void TFtp::Session::Task::PrintState() const {
if (not file || not file->is_open()) {
return;
}
const ssize_t kOff = file->tellg();
ShowPercentage("\t * Прогресс", (kOff > 0 ? ((kOff * 100) / file_sz) : 100));
}
bool YModem::SendFile(const std::string &path, YModem::SPort &out) {
if (path.size() == 0 ||
not out.is_open())
return false;
std::fstream firm_str(path.c_str());
if (not firm_str.is_open())
return false;
firm_str.seekg(0, firm_str.end);
const size_t kFileSize = firm_str.tellg();
firm_str.seekg(0, firm_str.beg);
// ожидание запроса
WaitForResponse(out, Packet::kRequest);
Packet::Sequence seq(&out);
// инициализация соединения
char buf[24];
snprintf(buf, 24, "%u", (unsigned)kFileSize);
const std::string kMsgs[] = {path, buf};
SendInitialPkt(seq, kMsgs, 2);
if (not IsResponse(out, Packet::kRequest)) {
firm_str.close();
return false;
}
// передача файла
Array frame(NewFrame());
size_t was_send = 0;
size_t last_percent = 0;
do {
firm_str.sync();
firm_str.read((char*)frame.get(), kFrameSize);
const size_t kWasRead = firm_str.gcount();
if (kWasRead != kFrameSize) {
memset(frame.get() + kWasRead, 0, kFrameSize - kWasRead);
}
seq.Send(Packet(Packet::kSTX, frame.get(), kFrameSize));
was_send += kWasRead;
if (not IsResponse(out, Packet::kACK)) {
std::cout << "\t ! Ошибка передачи данных" << std::endl;
break;
}
const size_t kPercent = was_send * 100 / kFileSize;
if (kPercent > last_percent) {
ShowPercentage("\t * Прогресс", kPercent);
last_percent = kPercent;
}
} while (was_send < kFileSize);
std::cout << std::endl;
seq.Send(Packet(Packet::kEOT));
IsResponse(out, Packet::kACK);
seq.Send(Packet(Packet::kEOT));
IsResponse(out, Packet::kACK);
IsResponse(out, Packet::kRequest);
SendClosingPkt(seq);
firm_str.close();
return true;
}
