public IntPtr GetValuePtr(int ordinal)
{
object result = DBNull.Value;
TDengineMeta meta = _metas[ordinal];
int offset = IntPtr.Size * ordinal;
return(Marshal.ReadIntPtr(rowdata, offset));
}
public IntPtr GetValuePtr(int ordinal)
{
object result = DBNull.Value;
TDengineMeta meta = _metas[ordinal];
int offset = (Environment.Is64BitProcess?8:4) * ordinal;
return(Marshal.ReadIntPtr(rowdata, offset));
}
/// <summary>
/// Gets the data type of the specified column.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The data type of the column.</returns>
public override Type GetFieldType(int ordinal)
{
if (_metas == null || ordinal >= _metas.Count)
{
throw new InvalidOperationException($"DataReaderClosed{nameof(GetFieldType)}");
}
TDengineMeta meta = _metas[ordinal];
Type type = typeof(DBNull);
switch ((TDengineDataType)meta.type)
{
case TDengineDataType.TSDB_DATA_TYPE_BOOL:
type = typeof(bool);
break;
case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
type = typeof(byte);
break;
case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
type = typeof(short);
break;
case TDengineDataType.TSDB_DATA_TYPE_INT:
type = typeof(int);
break;
case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
type = typeof(long);
break;
case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
type = typeof(float);
break;
case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
type = typeof(double);
break;
case TDengineDataType.TSDB_DATA_TYPE_BINARY:
type = typeof(byte[]);
break;
case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
type = typeof(long);
break;
case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
type = typeof(string);
break;
}
return(type);
}
/// <summary>
/// Retrieves data as a Stream. If the reader includes rowid (or any of its aliases), a
/// <see cref="TaosBlob"/> is returned. Otherwise, the all of the data is read into memory and a
/// <see cref="MemoryStream"/> is returned.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The returned object.</returns>
public override Stream GetStream(int ordinal)
{
MemoryStream result = null;
TDengineMeta meta = _metas[ordinal];
int offset = IntPtr.Size * ordinal;
IntPtr data = Marshal.ReadIntPtr(rowdata, offset);
if (data != IntPtr.Zero)
{
byte[] bf = new byte[meta.size];
Marshal.Copy(data, bf, 0, meta.size);
result = new MemoryStream(bf);
}
return(result);
}
/// <summary>
/// Gets the value of the specified column.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The value of the column.</returns>
public override object GetValue(int ordinal)
{
object result = DBNull.Value;
TDengineMeta meta = _metas[ordinal];
int offset = IntPtr.Size * ordinal;
IntPtr data = Marshal.ReadIntPtr(rowdata, offset);
if (data != IntPtr.Zero)
{
switch ((TDengineDataType)meta.type)
{
case TDengineDataType.TSDB_DATA_TYPE_BOOL:
bool v1 = Marshal.ReadByte(data) == 0 ? false : true;
result = v1;
break;
case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
sbyte v2s = (sbyte)Marshal.ReadByte(data);
result = v2s;
break;
case TDengineDataType.TSDB_DATA_TYPE_UTINYINT:
byte v2 = Marshal.ReadByte(data);
result = v2;
break;
case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
short v3 = Marshal.ReadInt16(data);
result = v3;
break;
case TDengineDataType.TSDB_DATA_TYPE_USMALLINT:
ushort v12 = (ushort)Marshal.ReadInt16(data);
result = v12;
break;
case TDengineDataType.TSDB_DATA_TYPE_INT:
int v4 = Marshal.ReadInt32(data);
result = v4;
break;
case TDengineDataType.TSDB_DATA_TYPE_UINT:
uint v13 = (uint)Marshal.ReadInt32(data);
result = v13;
break;
case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
long v5 = Marshal.ReadInt64(data);
result = v5;
break;
case TDengineDataType.TSDB_DATA_TYPE_UBIGINT:
ulong v14 = (ulong)Marshal.ReadInt64(data);
result = v14;
break;
case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
float v6 = (float)Marshal.PtrToStructure(data, typeof(float));
result = v6;
break;
case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
double v7 = (double)Marshal.PtrToStructure(data, typeof(double));
result = v7;
break;
case TDengineDataType.TSDB_DATA_TYPE_BINARY:
{
result = Marshal.PtrToStringAnsi(data, meta.size)?.RemoveNull();
}
break;
case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
{
result = GetDateTimeFrom(data);
}
break;
case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
{
string v10 = string.Empty;
if (meta.size > 0) // https://github.com/maikebing/Maikebing.EntityFrameworkCore.Taos/issues/99
{
byte[] bf = new byte[meta.size];
Marshal.Copy(data, bf, 0, meta.size);
if (IsUTF8Bytes(bf) || (bf[0] == 0xEF && bf[1] == 0xBB && bf[2] == 0xBF))
{
v10 = System.Text.Encoding.UTF8.GetString(bf)?.RemoveNull();
}
else
{
v10 = System.Text.Encoding.GetEncoding(936).GetString(bf)?.RemoveNull();
}
}
result = v10;
}
break;
}
}
else
{
result = DBNull.Value;
}
return(result);
}
/// <summary>
/// Gets the value of the specified column.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The value of the column.</returns>
public override object GetValue(int ordinal)
{
object result = DBNull.Value;
TDengineMeta meta = _metas[ordinal];
int offset = IntPtr.Size * ordinal;
IntPtr data = Marshal.ReadIntPtr(rowdata, offset);
if (data != IntPtr.Zero)
{
switch ((TDengineDataType)meta.type)
{
case TDengineDataType.TSDB_DATA_TYPE_BOOL:
bool v1 = Marshal.ReadByte(data) == 0 ? false : true;
result = v1;
break;
case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
byte v2 = Marshal.ReadByte(data);
result = v2;
break;
case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
short v3 = Marshal.ReadInt16(data);
result = v3;
break;
case TDengineDataType.TSDB_DATA_TYPE_INT:
int v4 = Marshal.ReadInt32(data);
result = v4;
break;
case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
long v5 = Marshal.ReadInt64(data);
result = v5;
break;
case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
float v6 = (float)Marshal.PtrToStructure(data, typeof(float));
result = v6;
break;
case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
double v7 = (double)Marshal.PtrToStructure(data, typeof(double));
result = v7;
break;
case TDengineDataType.TSDB_DATA_TYPE_BINARY:
{
byte[] buffer = new byte[meta.size];
Marshal.Copy(data, buffer, 0, meta.size);
result = buffer;
}
break;
case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
long v9 = Marshal.ReadInt64(data);
result = v9;
break;
case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
string v10 = Marshal.PtrToStringAnsi(data);
result = v10;
break;
}
}
else
{
result = DBNull.Value;
}
return(result);
}
/// <summary>
/// Gets the value of the specified column.
/// </summary>
/// <param name="ordinal">The zero-based column ordinal.</param>
/// <returns>The value of the column.</returns>
public override object GetValue(int ordinal)
{
object result = DBNull.Value;
TDengineMeta meta = _metas[ordinal];
int offset = IntPtr.Size * ordinal;
IntPtr data = Marshal.ReadIntPtr(rowdata, offset);
if (data != IntPtr.Zero)
{
switch ((TDengineDataType)meta.type)
{
case TDengineDataType.TSDB_DATA_TYPE_BOOL:
bool v1 = Marshal.ReadByte(data) == 0 ? false : true;
result = v1;
break;
case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
byte v2 = Marshal.ReadByte(data);
result = v2;
break;
case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
short v3 = Marshal.ReadInt16(data);
result = v3;
break;
case TDengineDataType.TSDB_DATA_TYPE_INT:
int v4 = Marshal.ReadInt32(data);
result = v4;
break;
case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
long v5 = Marshal.ReadInt64(data);
result = v5;
break;
case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
float v6 = (float)Marshal.PtrToStructure(data, typeof(float));
result = v6;
break;
case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
double v7 = (double)Marshal.PtrToStructure(data, typeof(double));
result = v7;
break;
case TDengineDataType.TSDB_DATA_TYPE_BINARY:
{
result = Marshal.PtrToStringAnsi(data, meta.size)?.RemoveNull();
}
break;
case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
var v9 = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(Marshal.ReadInt64(data));
result = v9.ToLocalTime();
break;
case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
string v10 = Marshal.PtrToStringUni(data, meta.size)?.RemoveNull();
result = v10;
break;
}
}
else
{
result = DBNull.Value;
}
return(result);
}
