C++ NarrowString::AppendFormat方法代码示例

static inline void
HexDumpLine(const char *prefix, unsigned offset,
            const uint8_t *data, size_t length)
{
  NarrowString<128> line;
  line.clear();

  for (size_t i = 0; i < length; ++i) {
    if ((i & 0x7) == 0)
      line += " ";

    line.AppendFormat(" %02x", data[i]);
  }

  for (size_t i = length; i < 0x10; ++i) {
    if ((i & 0x7) == 0)
      line += " ";

    line += "   ";
  }

  line += " ";
  for (size_t i = 0; i < length; ++i) {
    if ((i & 0x7) == 0)
      line += " ";

    char byte[2];
    byte[0] = IsPrintable(data[i]) ? (char)data[i] : '.';
    byte[1] = '\0';
    line += byte;
  }

  LogFormat("%s%04x%s", prefix, offset, line.c_str());
}

int main(int argc, char **argv)
{
  NarrowString<1024> usage;
  usage = "DRIVER\n\n"
          "Where DRIVER is one of:";
  {
    const DeviceRegister *driver;
    for (unsigned i = 0; (driver = GetDriverByIndex(i)) != nullptr; ++i) {
      WideToUTF8Converter driver_name(driver->name);
      usage.AppendFormat("\n\t%s", (const char *)driver_name);
    }
  }

  Args args(argc, argv, usage);
  tstring driver_name = args.ExpectNextT();
  args.ExpectEnd();

  driver = FindDriverByName(driver_name.c_str());
  if (driver == nullptr) {
    _ftprintf(stderr, _T("No such driver: %s\n"), driver_name.c_str());
    return 1;
  }

  DeviceConfig config;
  config.Clear();

  NullPort port;
  Device *device = driver->CreateOnPort != nullptr
    ? driver->CreateOnPort(config, port)
    : nullptr;

  NMEAParser parser;

  NMEAInfo data;
  data.Reset();

  char buffer[1024];
  while (fgets(buffer, sizeof(buffer), stdin) != nullptr) {
    StripRight(buffer);

    if (device == nullptr || !device->ParseNMEA(buffer, data))
      parser.ParseLine(buffer, data);
  }

  Dump(data);

  return EXIT_SUCCESS;
}

int main(int argc, char **argv)
{
  Args args(argc, argv, "PORT");
  const DeviceConfig config = ParsePortArgs(args);
  args.ExpectEnd();

  InitialiseIOThread();

  Port *port = OpenPort(config, nullptr, *(DataHandler *)nullptr);
  if (port == nullptr) {
    DeinitialiseIOThread();
    fprintf(stderr, "Failed to open port\n");
    return EXIT_FAILURE;
  }

  ConsoleOperationEnvironment env;

  if (!port->WaitConnected(env)) {
    delete port;
    DeinitialiseIOThread();
    fprintf(stderr, "Failed to connect the port\n");
    return EXIT_FAILURE;
  }

  PeriodClock start_clock;
  start_clock.Update();

  PeriodClock pressure_clock;
  PeriodClock battery_clock;

  fixed pressure = fixed(101300);
  unsigned battery_level = 11;
  while (true) {
    if (pressure_clock.CheckUpdate(48)) {
      NarrowString<16> sentence;

      int elapsed_ms = start_clock.Elapsed();
      auto elapsed = fixed(elapsed_ms) / 1000;
      auto vario = sin(elapsed / 3) * cos(elapsed / 10) *
        cos(elapsed / 20 + fixed(2)) * 3;

      auto pressure_vario = -vario * fixed(12.5);
      auto delta_pressure = pressure_vario * 48 / 1000;
      pressure += delta_pressure;

      sentence = "_PRS ";
      sentence.AppendFormat("%08X", uround(pressure));
      sentence += "\n";

      port->Write(sentence.c_str(), sentence.length());
    }

    if (battery_clock.CheckUpdate(11000)) {
      NarrowString<16> sentence;

      sentence = "_BAT ";
      if (battery_level <= 10)
        sentence.AppendFormat("%X", battery_level);
      else
        sentence += "*";

      sentence += "\n";
      port->Write(sentence.c_str(), sentence.length());

      if (battery_level == 0)
        battery_level = 11;
      else
        battery_level--;
    }
  }
}

int main(int argc, char **argv)
{
  // Determine on which TCP port to connect to the server
  const char *tcp_port;
  if (argc < 2) {
    fprintf(stderr, "This program opens a TCP connection to a server which is assumed ");
    fprintf(stderr, "to be at 127.0.0.1, and sends artificial FlyNet vario data.\n\n");
    fprintf(stderr, "Usage: %s PORT\n", argv[0]);
    fprintf(stderr, "Defaulting to port 4353\n");
    tcp_port = "4353";
  } else {
    tcp_port = argv[1];
  }

  // Convert IP address to binary form
  SocketAddress server_address;
  if (!server_address.Lookup("127.0.0.1", tcp_port, AF_INET)) {
    fprintf(stderr, "Failed to look up address\n");
    exit(EXIT_FAILURE);
  }

  // Create socket for the outgoing connection
  SocketDescriptor sock;
  if (!sock.CreateTCP()) {
    perror("Socket");
    exit(EXIT_FAILURE);
  }

  // Connect to the specified server
  if (!sock.Connect(server_address))
  {
    perror("Connect");
    exit(EXIT_FAILURE);
  }

  PeriodClock start_clock;
  start_clock.Update();

  PeriodClock pressure_clock;
  PeriodClock battery_clock;

  fixed pressure = fixed(101300);
  unsigned battery_level = 11;
  while (true) {
    if (pressure_clock.CheckUpdate(48)) {
      NarrowString<16> sentence;

      int elapsed_ms = start_clock.Elapsed();
      fixed elapsed = fixed(elapsed_ms) / 1000;
      fixed vario = sin(elapsed / 3) * cos(elapsed / 10) *
                    cos(elapsed / 20 + fixed(2)) * fixed(3);

      fixed pressure_vario = -vario * fixed(12.5);
      fixed delta_pressure = pressure_vario * 48 / 1000;
      pressure += delta_pressure;

      sentence = "_PRS ";
      sentence.AppendFormat("%08X", uround(pressure));
      sentence += "\n";

      sock.Write(sentence.c_str(), sentence.length());
    }

    if (battery_clock.CheckUpdate(11000)) {
      NarrowString<16> sentence;

      sentence = "_BAT ";
      if (battery_level <= 10)
        sentence.AppendFormat("%X", battery_level);
      else
        sentence += "*";

      sentence += "\n";
      sock.Write(sentence.c_str(), sentence.length());

      if (battery_level == 0)
        battery_level = 11;
      else
        battery_level--;
    }
  }

  return EXIT_SUCCESS;
}

int main(int argc, char **argv)
{
  NarrowString<1024> usage;
  usage = "DRIVER PORT BAUD FILE.igc [FLIGHT NR]\n\n"
          "Where DRIVER is one of:";
  {
    const DeviceRegister *driver;
    for (unsigned i = 0; (driver = GetDriverByIndex(i)) != NULL; ++i) {
      if (driver->IsLogger()) {
        NarrowPathName driver_name(driver->name);
        usage.AppendFormat("\n\t%s", (const char *)driver_name);
      }
    }
  }

  Args args(argc, argv, usage);

  PathName driver_name(args.ExpectNext());
  PathName port_name(args.ExpectNext());

  DeviceConfig config;
  config.Clear();
  config.baud_rate = atoi(args.ExpectNext());

  PathName path(args.ExpectNext());

  unsigned flight_id = args.IsEmpty() ? 0 : atoi(args.GetNext());
  args.ExpectEnd();

#ifdef HAVE_POSIX
  TTYPort port(port_name, config.baud_rate, *(Port::Handler *)NULL);
#else
  SerialPort port(port_name, config.baud_rate, *(Port::Handler *)NULL);
#endif
  if (!port.Open()) {
    fprintf(stderr, "Failed to open COM port\n");
    return EXIT_FAILURE;
  }

  ConsoleOperationEnvironment env;
  const struct DeviceRegister *driver = FindDriverByName(driver_name);
  if (driver == NULL) {
    fprintf(stderr, "No such driver: %s\n", argv[1]);
    args.UsageError();
  }

  if (!driver->IsLogger()) {
    fprintf(stderr, "Not a logger driver: %s\n", argv[1]);
    args.UsageError();
  }

  assert(driver->CreateOnPort != NULL);
  Device *device = driver->CreateOnPort(config, port);
  assert(device != NULL);

  if (!device->Open(env)) {
    delete device;
    fprintf(stderr, "Failed to open driver: %s\n", argv[1]);
    return EXIT_FAILURE;
  }

  if (!device->EnableDownloadMode()) {
    delete device;
    fprintf(stderr, "Failed to enable download mode\n");
    return EXIT_FAILURE;
  }

  RecordedFlightList flight_list;
  if (!device->ReadFlightList(flight_list, env)) {
    device->DisableDownloadMode();
    delete device;
    fprintf(stderr, "Failed to download flight list\n");
    return EXIT_FAILURE;
  }

  if (flight_list.empty()) {
    device->DisableDownloadMode();
    delete device;
    fprintf(stderr, "Logger is empty\n");
    return EXIT_FAILURE;
  }

  PrintFlightList(flight_list);

  if (flight_id >= flight_list.size()) {
    device->DisableDownloadMode();
    delete device;
    fprintf(stderr, "Flight id not found\n");
    return EXIT_FAILURE;
  }

  if (!device->DownloadFlight(flight_list[flight_id], path, env)) {
    device->DisableDownloadMode();
    delete device;
    fprintf(stderr, "Failed to download flight\n");
    return EXIT_FAILURE;
  }

  device->DisableDownloadMode();
  delete device;
//.........这里部分代码省略.........

int main(int argc, char **argv)
{
  NarrowString<1024> usage;
  usage = "DRIVER PORT BAUD FILE.igc [FLIGHT NR]\n\n"
          "Where DRIVER is one of:";
  {
    const DeviceRegister *driver;
    for (unsigned i = 0; (driver = GetDriverByIndex(i)) != NULL; ++i) {
      if (driver->IsLogger()) {
        WideToUTF8Converter driver_name(driver->name);
        usage.AppendFormat("\n\t%s", (const char *)driver_name);
      }
    }
  }

  Args args(argc, argv, usage);
  tstring driver_name = args.ExpectNextT();
  const DeviceConfig config = ParsePortArgs(args);

  PathName path(args.ExpectNext());

  unsigned flight_id = args.IsEmpty() ? 0 : atoi(args.GetNext());
  args.ExpectEnd();

  InitialiseIOThread();

  Port *port = OpenPort(config, *(DataHandler *)NULL);
  if (port == NULL) {
    fprintf(stderr, "Failed to open COM port\n");
    return EXIT_FAILURE;
  }

  ConsoleOperationEnvironment env;
  const struct DeviceRegister *driver = FindDriverByName(driver_name.c_str());
  if (driver == NULL) {
    fprintf(stderr, "No such driver: %s\n", argv[1]);
    args.UsageError();
  }

  if (!driver->IsLogger()) {
    fprintf(stderr, "Not a logger driver: %s\n", argv[1]);
    args.UsageError();
  }

  assert(driver->CreateOnPort != NULL);
  Device *device = driver->CreateOnPort(config, *port);
  assert(device != NULL);

  RecordedFlightList flight_list;
  if (!device->ReadFlightList(flight_list, env)) {
    delete device;
    delete port;
    fprintf(stderr, "Failed to download flight list\n");
    return EXIT_FAILURE;
  }

  if (flight_list.empty()) {
    delete device;
    delete port;
    fprintf(stderr, "Logger is empty\n");
    return EXIT_FAILURE;
  }

  PrintFlightList(flight_list);

  if (flight_id >= flight_list.size()) {
    delete device;
    delete port;
    fprintf(stderr, "Flight id not found\n");
    return EXIT_FAILURE;
  }

  if (!device->DownloadFlight(flight_list[flight_id], path, env)) {
    delete device;
    delete port;
    fprintf(stderr, "Failed to download flight\n");
    return EXIT_FAILURE;
  }

  delete device;
  delete port;
  DeinitialiseIOThread();

  printf("Flight downloaded successfully\n");

  return EXIT_SUCCESS;
}