64 lines
2.3 KiB
Python
64 lines
2.3 KiB
Python
#!python
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#
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# Run with native CPython. Needs pywin32 extensions.
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# Copyright (c) 2011-2012 Ryan Prichard
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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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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import sys
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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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sys.stdout.flush()
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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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try:
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win32file.WriteFile(serverPipe, b'OK')
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except:
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pass
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win32pipe.DisconnectNamedPipe(serverPipe)
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