protected OciHandle(OciHandle parentHandle, OCI.HTYPE handleType, OCI.MODE ocimode, HANDLEFLAG handleflags) : this()
{
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
int num;
this._handleType = handleType;
this._parentHandle = parentHandle;
this._refCount = 1;
switch (handleType)
{
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_TZ:
case OCI.HTYPE.OCI_DTYPE_TIMESTAMP_LTZ:
case OCI.HTYPE.OCI_DTYPE_INTERVAL_DS:
case OCI.HTYPE.OCI_DTYPE_FIRST:
case OCI.HTYPE.OCI_DTYPE_ROWID:
case OCI.HTYPE.OCI_DTYPE_FILE:
num = TracedNativeMethods.OCIDescriptorAlloc(parentHandle.EnvironmentHandle, out this.handle, handleType);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIDescriptorAlloc", num);
}
break;
case OCI.HTYPE.OCI_HTYPE_ENV:
if ((handleflags & HANDLEFLAG.NLS) != HANDLEFLAG.NLS)
{
num = TracedNativeMethods.OCIEnvCreate(out this.handle, ocimode);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIEnvCreate", num);
}
}
else
{
num = TracedNativeMethods.OCIEnvNlsCreate(out this.handle, ocimode, 0, 0);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIEnvNlsCreate", num);
}
}
break;
case OCI.HTYPE.OCI_HTYPE_ERROR:
case OCI.HTYPE.OCI_HTYPE_SVCCTX:
case OCI.HTYPE.OCI_HTYPE_STMT:
case OCI.HTYPE.OCI_HTYPE_SERVER:
case OCI.HTYPE.OCI_HTYPE_SESSION:
num = TracedNativeMethods.OCIHandleAlloc(parentHandle.EnvironmentHandle, out this.handle, handleType);
if ((num != 0) || (IntPtr.Zero == base.handle))
{
throw System.Data.Common.ADP.OperationFailed("OCIHandleAlloc", num);
}
break;
}
if (parentHandle != null)
{
parentHandle.AddRef();
this._isUnicode = parentHandle.IsUnicode;
}
else
{
this._isUnicode = (handleflags & HANDLEFLAG.UNICODE) == HANDLEFLAG.UNICODE;
}
}
}
