public static void ThrowExceptionForRC(IntPtr _taos)
{
var te = new TaosException(new TaosErrorResult()
{
Code = TDengine.ErrorNo(_taos), Error = TDengine.Error(_taos)
});
throw te;
}
/// <summary>
/// Advances to the next row in the result set.
/// </summary>
/// <returns>true if there are more rows; otherwise, false.</returns>
public override bool Read()
{
if (_closed)
{
throw new InvalidOperationException($"DataReaderClosed{nameof(Read)}");
}
rowdata = TDengine.FetchRows(_taosResult);
return(rowdata != IntPtr.Zero);
}
internal TaosDataReader(TaosCommand taosCommand, List <TDengineMeta> metas, bool closeConnection)
{
_taos = taosCommand.Connection._taos;
_command = taosCommand;
_closeConnection = closeConnection;
_fieldCount = TDengine.FieldCount(_taos);
_hasRows = TDengine.AffectRows(_taos) > 0;
_closed = _closeConnection;
_taosResult = TDengine.UseResult(_taos);
_metas = metas;
}
/// <summary>
/// Initializes a new instance of the <see cref="TaosConnection" /> class.
/// </summary>
public TaosConnection()
{
if (_dll_isloaded == false)
{
var libManager = new LibraryManager(
new LibraryItem(Platform.Windows, Bitness.x64,
new LibraryFile("taos.dll", Binary(typeof(TaosConnection).Assembly, $"{typeof(TaosConnection).Namespace}.libs.taos_x64.dll"))),
new LibraryItem(Platform.Windows, Bitness.x32,
new LibraryFile("taos.dll", Binary(typeof(TaosConnection).Assembly, $"{typeof(TaosConnection).Namespace}.libs.taos_x32.dll"))),
new LibraryItem(Platform.Linux, Bitness.x64,
new LibraryFile("libtaos.so", Binary(typeof(TaosConnection).Assembly, $"{typeof(TaosConnection).Namespace}.libs.libtaos_x64.so"))));
libManager.LoadLibraryExplicit = true;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
configDir = "/etc/taos";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
configDir = "C:/TDengine/cfg";
}
if (!System.IO.Directory.Exists(configDir))
{
configDir = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "taos.studio");
}
var cfg = new System.IO.FileInfo(System.IO.Path.Combine(configDir, "taos.cfg"));
if (!cfg.Directory.Exists)
{
cfg.Directory.Create();
}
if (!cfg.Exists)
{
System.IO.File.WriteAllBytes(cfg.FullName, Binary(typeof(TaosConnection).Assembly, $"{typeof(TaosConnection).Namespace}.cfg.taos.cfg"));
}
if ((RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && RuntimeInformation.OSArchitecture == Architecture.X64) ||
(RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && RuntimeInformation.OSArchitecture == Architecture.X64) ||
(RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && RuntimeInformation.OSArchitecture == Architecture.X86))
{
TDengine.Options((int)TDengineInitOption.TDDB_OPTION_CONFIGDIR, this.configDir);
TDengine.Options((int)TDengineInitOption.TDDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
TDengine.Init();
Process.GetCurrentProcess().Disposed += (object sender, EventArgs e) =>
{
TDengine.Cleanup();
};
_dll_isloaded = true;
}
else
{
throw new PlatformNotSupportedException("Only Support Linux X64 And Windows X64/X86");
}
}
}
internal TaosDataReader(TaosCommand taosCommand, List <TDengineMeta> metas, bool closeConnection, IntPtr res)
{
_taos = taosCommand.Connection._taos;
_command = taosCommand;
_closeConnection = closeConnection;
_fieldCount = TDengine.FieldCount(res);
_hasRows = TDengine.AffectRows(res) > 0;
_closed = _closeConnection;
_taosResult = res;
_metas = metas;
_dt1970 = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
_date_max_1970 = DateTime.MaxValue.Subtract(_dt1970).TotalMilliseconds;
}
/// <summary>
/// Gets the value of the specified column as a <see cref="TimeSpan" />.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The value of the column.</returns>
public virtual TimeSpan GetTimeSpan(int ordinal)
{
var val = Marshal.ReadInt64(GetValuePtr(ordinal));
var _dateTimePrecision = (TSDB_TIME_PRECISION)TDengine.ResultPrecision(_taosResult);
if (_dateTimePrecision == TSDB_TIME_PRECISION.TSDB_TIME_PRECISION_MICRO)
{
return(TimeSpan.FromMilliseconds(val / 1000));
}
else
{
return(TimeSpan.FromMilliseconds(val));
}
}
/// <summary>
/// Releases any resources used by the data reader and closes it.
/// </summary>
/// <param name="disposing">
/// true to release managed and unmanaged resources; false to release only unmanaged resources.
/// </param>
protected override void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
_command.DataReader = null;
_closed = true;
if (_closeConnection)
{
_command.Connection.Close();
}
TDengine.FreeResult(_taosResult);
}
/// <summary>
/// Initializes a new instance of the <see cref="TaosConnection" /> class.
/// </summary>
public TaosConnection()
{
if (_dll_isloaded == false)
{
var accessor = new ResourceAccessor(Assembly.GetExecutingAssembly());
var libManager = new LibraryManager(
Assembly.GetExecutingAssembly(),
new LibraryItem(Platform.Windows, Bitness.x64,
new LibraryFile("taos.dll", accessor.Binary("libs.taos_x64.dll"))),
new LibraryItem(Platform.Windows, Bitness.x32,
new LibraryFile("taos.dll", accessor.Binary("libs.taos_x32.dll"))),
new LibraryItem(Platform.Linux, Bitness.x64,
new LibraryFile("libtaos.so", accessor.Binary("libs.libtaos_x64.so"))));
libManager.LoadNativeLibrary(false);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
configDir = "/etc/taos";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
configDir = "C:/TDengine/cfg";
}
var cfg = new System.IO.FileInfo(System.IO.Path.Combine(configDir, "taos.cfg"));
if (!cfg.Directory.Exists)
{
cfg.Directory.Create();
}
if (!cfg.Exists)
{
System.IO.File.WriteAllBytes(cfg.FullName, accessor.Binary("cfg.taos.cfg"));
}
if ((RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && RuntimeInformation.OSArchitecture == Architecture.X64) ||
(RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && RuntimeInformation.OSArchitecture == Architecture.X64) ||
(RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && RuntimeInformation.OSArchitecture == Architecture.X86))
{
TDengine.Options((int)TDengineInitOption.TDDB_OPTION_CONFIGDIR, this.configDir);
TDengine.Options((int)TDengineInitOption.TDDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
TDengine.Init();
_dll_isloaded = true;
}
else
{
throw new PlatformNotSupportedException("Only Support Linux X64 And Windows X64/X86");
}
}
}
private DateTime GetDateTimeFrom(IntPtr data)
{
var val = Marshal.ReadInt64(data);
double tsp;
var _dateTimePrecision = (TSDB_TIME_PRECISION)TDengine.ResultPrecision(_taosResult);
if (_dateTimePrecision == TSDB_TIME_PRECISION.TSDB_TIME_PRECISION_MICRO)
{
tsp = (val / 1000);
}
else
{
tsp = val;
}
if (tsp > _date_max_1970)
{
//fix https://github.com/taosdata/TDengine/issues/3270
tsp /= 1000;
}
var v9 = _dt1970.AddMilliseconds(tsp);
return(v9.ToLocalTime());
}
