// Construct by allocating a new handle as a child of the specified parent handle
protected OciHandle(
OciHandle parentOciHandle,
OCI.HTYPE handleType
)
{
int rc;
_parentOciHandle = parentOciHandle;
_handleType = handleType;
_unicode = parentOciHandle._unicode;
if (_handleType < OCI.HTYPE.OCI_DTYPE_FIRST)
{
rc = TracedNativeMethods.OCIHandleAlloc(
parentOciHandle,
out _handle,
_handleType,
0,
ADP.NullHandleRef);
}
else
{
rc = TracedNativeMethods.OCIDescriptorAlloc(
parentOciHandle,
out _handle,
_handleType,
0,
ADP.NullHandleRef);
}
if (0 != rc || IntPtr.Zero == _handle)
{
throw ADP.OperationFailed("OCIDescriptorAllocate", rc);
}
// Console.WriteLine(String.Format("OracleClient: Allocate handle=0x{0,-8:x} parent=0x{2,-8:x} type={1}", _handle, _handleType, (null != parentOciHandle ) ? parentOciHandle.Handle : IntPtr.Zero));
}
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;
}
}
}
