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opt
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python35
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lib64
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python3.5
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test
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View File Name :
win_console_handler.py
"""Script used to test os.kill on Windows, for issue #1220212 This script is started as a subprocess in test_os and is used to test the CTRL_C_EVENT and CTRL_BREAK_EVENT signals, which requires a custom handler to be written into the kill target. See http://msdn.microsoft.com/en-us/library/ms685049%28v=VS.85%29.aspx for a similar example in C. """ from ctypes import wintypes, WINFUNCTYPE import signal import ctypes import mmap import sys # Function prototype for the handler function. Returns BOOL, takes a DWORD. HandlerRoutine = WINFUNCTYPE(wintypes.BOOL, wintypes.DWORD) def _ctrl_handler(sig): """Handle a sig event and return 0 to terminate the process""" if sig == signal.CTRL_C_EVENT: pass elif sig == signal.CTRL_BREAK_EVENT: pass else: print("UNKNOWN EVENT") return 0 ctrl_handler = HandlerRoutine(_ctrl_handler) SetConsoleCtrlHandler = ctypes.windll.kernel32.SetConsoleCtrlHandler SetConsoleCtrlHandler.argtypes = (HandlerRoutine, wintypes.BOOL) SetConsoleCtrlHandler.restype = wintypes.BOOL if __name__ == "__main__": # Add our console control handling function with value 1 if not SetConsoleCtrlHandler(ctrl_handler, 1): print("Unable to add SetConsoleCtrlHandler") exit(-1) # Awake main process m = mmap.mmap(-1, 1, sys.argv[1]) m[0] = 1 # Do nothing but wait for the signal while True: pass