File: windows.py

package info (click to toggle)
python-tornado 5.1.1-4
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 3,292 kB
  • sloc: python: 28,599; sh: 105; ansic: 65; xml: 49; makefile: 48; sql: 23
file content (20 lines) | stat: -rw-r--r-- 707 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
# NOTE: win32 support is currently experimental, and not recommended
# for production use.


from __future__ import absolute_import, division, print_function
import ctypes  # type: ignore
import ctypes.wintypes  # type: ignore

# See: http://msdn.microsoft.com/en-us/library/ms724935(VS.85).aspx
SetHandleInformation = ctypes.windll.kernel32.SetHandleInformation
SetHandleInformation.argtypes = (ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD, ctypes.wintypes.DWORD)  # noqa: E501
SetHandleInformation.restype = ctypes.wintypes.BOOL

HANDLE_FLAG_INHERIT = 0x00000001


def set_close_exec(fd):
    success = SetHandleInformation(fd, HANDLE_FLAG_INHERIT, 0)
    if not success:
        raise ctypes.WinError()