CBFS Filter 2020 Python Edition

Questions / Feedback?

on_notify_get_file_sizes Event

Fires when a file's size information has been retrieved.

Syntax

class CBMonitorNotifyGetFileSizesEventParams(object):
  @property
  def file_name() -> str: ...
  @property
  def size() -> int: ...
  @property
  def allocation_size() -> int: ...
  @property
  def status() -> int: ...
  @property
  def result_code() -> int: ...
  @result_code.setter
  def result_code(value) -> None: ...

# In class CBMonitor:
@property
def on_notify_get_file_sizes() -> Callable[[CBMonitorNotifyGetFileSizesEventParams], None]: ...
@on_notify_get_file_sizes.setter
def on_notify_get_file_sizes(event_hook: Callable[[CBMonitorNotifyGetFileSizesEventParams], None]) -> None: ...

Remarks

This event fires when size information has been retrieved for the file specified by FileName.

Applications only need to handle this event if they've added a standard filter rule that includes the FS_NE_GET_SIZES flag.

The Size parameter reflects the actual size of the file, in bytes.

The AllocationSize parameter reflects the amount of space allocated for the file, in bytes.

The Status parameter contains an NT status code that indicates the outcome of the operation; 0 indicates success. To convert this value to a Win32 error code, call the nt_status_to_win_32_error method. Please note that this event won't fire for failed requests unless the process_failed_requests property is enabled.

The ResultCode parameter will always be 0 when the event is fired. If the event cannot be handled in a "successful" manner for some reason, set it to a non-zero value to report an appropriate error. Note, however, that this event fires after the operation has already completed, so reporting an error won't actually affect the operation itself. Please refer to the Error Reporting and Handling topic for more information.

This event is fired asynchronously; please refer to the Event Types topic for more information.

Copyright (c) 2022 Callback Technologies, Inc. - All rights reserved.
CBFS Filter 2020 Python Edition - Version 20.0 [Build 8317]