internal void GetAttribute(OCI.ATTR attribute, out string value, OciErrorHandle errorHandle, OracleConnection connection)
{
IntPtr zero = IntPtr.Zero;
uint sizep = 0;
int rc = TracedNativeMethods.OCIAttrGet(this, ref zero, ref sizep, attribute, errorHandle);
if (rc != 0)
{
OracleException.Check(errorHandle, rc);
}
byte[] destination = new byte[sizep];
Marshal.Copy(zero, destination, 0, (int)sizep);
value = connection.GetString(destination);
}
internal void GetAttribute(
OCI.ATTR attribute,
out string value,
OciHandle errorHandle,
OracleConnection connection
)
{
IntPtr tempptr;
int tempub4;
int rc = TracedNativeMethods.OCIAttrGet(this, out tempptr, out tempub4, attribute, errorHandle);
if (0 != rc)
{
OracleException.Check(errorHandle, rc);
}
value = connection.GetString(tempptr, tempub4, false);
GC.KeepAlive(this);
}
internal static string MarshalToString(NativeBuffer buffer, int valueOffset, int lengthOffset, MetaType metaType, OracleConnection connection, bool boundAsUCS2, bool outputParameterBinding)
{
string str;
int length = GetLength(buffer, lengthOffset, metaType);
if (boundAsUCS2 && outputParameterBinding)
{
length /= 2;
}
bool flag = metaType.IsLong && !outputParameterBinding;
if (boundAsUCS2)
{
if (flag)
{
byte[] destinationBuffer = new byte[length * System.Data.Common.ADP.CharSize];
NativeBuffer_LongColumnData.CopyOutOfLineBytes(buffer.ReadIntPtr(valueOffset), 0, destinationBuffer, 0, length * System.Data.Common.ADP.CharSize);
str = Encoding.Unicode.GetString(destinationBuffer);
}
else
{
str = buffer.PtrToStringUni(valueOffset, length);
}
}
else
{
byte[] buffer2;
if (flag)
{
buffer2 = new byte[length];
NativeBuffer_LongColumnData.CopyOutOfLineBytes(buffer.ReadIntPtr(valueOffset), 0, buffer2, 0, length);
}
else
{
buffer2 = buffer.ReadBytes(valueOffset, length);
}
str = connection.GetString(buffer2, metaType.UsesNationalCharacterSet);
}
GC.KeepAlive(buffer);
return(str);
}
static internal string MarshalToString(
NativeBuffer buffer,
int valueOffset,
int lengthOffset,
MetaType metaType,
OracleConnection connection,
bool boundAsUCS2,
bool outputParameterBinding
)
{
int valueLength = GetLength(buffer, lengthOffset, metaType);
IntPtr valueBuffer = (IntPtr)buffer.PtrOffset(valueOffset);
// Long values are bound out-of-line
if (metaType.IsLong && !outputParameterBinding)
{
valueBuffer = (IntPtr)Marshal.ReadIntPtr(valueBuffer);
}
if (boundAsUCS2 && outputParameterBinding)
{
valueLength /= 2;
}
string result;
if (boundAsUCS2)
{
result = Marshal.PtrToStringUni(valueBuffer, valueLength);
}
else
{
result = connection.GetString(valueBuffer, valueLength, metaType.UsesNationalCharacterSet);
}
GC.KeepAlive(buffer);
return(result);
}
internal static string MarshalToString(NativeBuffer buffer, int valueOffset, int lengthOffset, MetaType metaType, OracleConnection connection, bool boundAsUCS2, bool outputParameterBinding)
{
string str;
int length = GetLength(buffer, lengthOffset, metaType);
if (boundAsUCS2 && outputParameterBinding)
{
length /= 2;
}
bool flag = metaType.IsLong && !outputParameterBinding;
if (boundAsUCS2)
{
if (flag)
{
byte[] destinationBuffer = new byte[length * System.Data.Common.ADP.CharSize];
NativeBuffer_LongColumnData.CopyOutOfLineBytes(buffer.ReadIntPtr(valueOffset), 0, destinationBuffer, 0, length * System.Data.Common.ADP.CharSize);
str = Encoding.Unicode.GetString(destinationBuffer);
}
else
{
str = buffer.PtrToStringUni(valueOffset, length);
}
}
else
{
byte[] buffer2;
if (flag)
{
buffer2 = new byte[length];
NativeBuffer_LongColumnData.CopyOutOfLineBytes(buffer.ReadIntPtr(valueOffset), 0, buffer2, 0, length);
}
else
{
buffer2 = buffer.ReadBytes(valueOffset, length);
}
str = connection.GetString(buffer2, metaType.UsesNationalCharacterSet);
}
GC.KeepAlive(buffer);
return str;
}