38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
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#!/usr/bin/env python
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# Run with native CPython3. Needs pywin32 extensions.
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import win32pipe
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import win32api
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import win32file
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import time
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import threading
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# A message may not be larger than this size.
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MSG_SIZE=4096
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serverPipe = win32pipe.CreateNamedPipe(
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"\\\\.\\pipe\\DebugServer",
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win32pipe.PIPE_ACCESS_DUPLEX,
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win32pipe.PIPE_TYPE_MESSAGE | win32pipe.PIPE_READMODE_MESSAGE,
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win32pipe.PIPE_UNLIMITED_INSTANCES,
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MSG_SIZE,
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MSG_SIZE,
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10 * 1000,
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None)
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while True:
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win32pipe.ConnectNamedPipe(serverPipe, None)
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(ret, data) = win32file.ReadFile(serverPipe, MSG_SIZE)
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print(data.decode())
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# The client uses CallNamedPipe to send its message. CallNamedPipe waits
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# for a reply message. If I send a reply, however, using WriteFile, then
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# sometimes WriteFile fails with:
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# pywintypes.error: (232, 'WriteFile', 'The pipe is being closed.')
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# I can't figure out how to write a strictly correct pipe server, but if
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# I comment out the WriteFile line, then everything seems to work. I
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# think the DisconnectNamedPipe call aborts the client's CallNamedPipe
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# call normally.
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#win32file.WriteFile(serverPipe, b'OK')
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win32pipe.DisconnectNamedPipe(serverPipe)
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