132 lines
5.5 KiB
Python
132 lines
5.5 KiB
Python
import unittest
|
|
import time
|
|
import threading
|
|
from pywin32_testutil import str2bytes # py3k-friendly helper
|
|
|
|
|
|
import win32pipe
|
|
import win32file
|
|
import win32event
|
|
import pywintypes
|
|
import winerror
|
|
import win32con
|
|
|
|
class PipeTests(unittest.TestCase):
|
|
pipename = "\\\\.\\pipe\\python_test_pipe"
|
|
|
|
def _serverThread(self, pipe_handle, event, wait_time):
|
|
# just do one connection and terminate.
|
|
hr = win32pipe.ConnectNamedPipe(pipe_handle)
|
|
self.failUnless(hr in (0, winerror.ERROR_PIPE_CONNECTED), "Got error code 0x%x" % (hr,))
|
|
hr, got = win32file.ReadFile(pipe_handle, 100)
|
|
self.failUnlessEqual(got, str2bytes("foo\0bar"))
|
|
time.sleep(wait_time)
|
|
win32file.WriteFile(pipe_handle, str2bytes("bar\0foo"))
|
|
pipe_handle.Close()
|
|
event.set()
|
|
|
|
def startPipeServer(self, event, wait_time = 0):
|
|
openMode = win32pipe.PIPE_ACCESS_DUPLEX
|
|
pipeMode = win32pipe.PIPE_TYPE_MESSAGE | win32pipe.PIPE_WAIT
|
|
|
|
sa = pywintypes.SECURITY_ATTRIBUTES()
|
|
sa.SetSecurityDescriptorDacl ( 1, None, 0 )
|
|
|
|
pipe_handle = win32pipe.CreateNamedPipe(self.pipename,
|
|
openMode,
|
|
pipeMode,
|
|
win32pipe.PIPE_UNLIMITED_INSTANCES,
|
|
0,
|
|
0,
|
|
2000,
|
|
sa)
|
|
|
|
|
|
threading.Thread(target=self._serverThread, args=(pipe_handle, event, wait_time)).start()
|
|
|
|
def testCallNamedPipe(self):
|
|
event = threading.Event()
|
|
self.startPipeServer(event)
|
|
|
|
got = win32pipe.CallNamedPipe(self.pipename,str2bytes("foo\0bar"), 1024, win32pipe.NMPWAIT_WAIT_FOREVER)
|
|
self.failUnlessEqual(got, str2bytes("bar\0foo"))
|
|
event.wait(5)
|
|
self.failUnless(event.isSet(), "Pipe server thread didn't terminate")
|
|
|
|
def testTransactNamedPipeBlocking(self):
|
|
event = threading.Event()
|
|
self.startPipeServer(event)
|
|
open_mode = win32con.GENERIC_READ | win32con.GENERIC_WRITE
|
|
|
|
hpipe = win32file.CreateFile(self.pipename,
|
|
open_mode,
|
|
0, # no sharing
|
|
None, # default security
|
|
win32con.OPEN_EXISTING,
|
|
0, # win32con.FILE_FLAG_OVERLAPPED,
|
|
None)
|
|
|
|
# set to message mode.
|
|
win32pipe.SetNamedPipeHandleState(
|
|
hpipe, win32pipe.PIPE_READMODE_MESSAGE, None, None)
|
|
|
|
hr, got = win32pipe.TransactNamedPipe(hpipe, str2bytes("foo\0bar"), 1024, None)
|
|
self.failUnlessEqual(got, str2bytes("bar\0foo"))
|
|
event.wait(5)
|
|
self.failUnless(event.isSet(), "Pipe server thread didn't terminate")
|
|
|
|
def testTransactNamedPipeBlockingBuffer(self):
|
|
# Like testTransactNamedPipeBlocking, but a pre-allocated buffer is
|
|
# passed (not really that useful, but it exercises the code path)
|
|
event = threading.Event()
|
|
self.startPipeServer(event)
|
|
open_mode = win32con.GENERIC_READ | win32con.GENERIC_WRITE
|
|
|
|
hpipe = win32file.CreateFile(self.pipename,
|
|
open_mode,
|
|
0, # no sharing
|
|
None, # default security
|
|
win32con.OPEN_EXISTING,
|
|
0, # win32con.FILE_FLAG_OVERLAPPED,
|
|
None)
|
|
|
|
# set to message mode.
|
|
win32pipe.SetNamedPipeHandleState(
|
|
hpipe, win32pipe.PIPE_READMODE_MESSAGE, None, None)
|
|
|
|
buffer = win32file.AllocateReadBuffer(1024)
|
|
hr, got = win32pipe.TransactNamedPipe(hpipe, str2bytes("foo\0bar"), buffer, None)
|
|
self.failUnlessEqual(got, str2bytes("bar\0foo"))
|
|
event.wait(5)
|
|
self.failUnless(event.isSet(), "Pipe server thread didn't terminate")
|
|
|
|
def testTransactNamedPipeAsync(self):
|
|
event = threading.Event()
|
|
overlapped = pywintypes.OVERLAPPED()
|
|
overlapped.hEvent = win32event.CreateEvent(None, 0, 0, None)
|
|
self.startPipeServer(event, 0.5)
|
|
open_mode = win32con.GENERIC_READ | win32con.GENERIC_WRITE
|
|
|
|
hpipe = win32file.CreateFile(self.pipename,
|
|
open_mode,
|
|
0, # no sharing
|
|
None, # default security
|
|
win32con.OPEN_EXISTING,
|
|
win32con.FILE_FLAG_OVERLAPPED,
|
|
None)
|
|
|
|
# set to message mode.
|
|
win32pipe.SetNamedPipeHandleState(
|
|
hpipe, win32pipe.PIPE_READMODE_MESSAGE, None, None)
|
|
|
|
buffer = win32file.AllocateReadBuffer(1024)
|
|
hr, got = win32pipe.TransactNamedPipe(hpipe, str2bytes("foo\0bar"), buffer, overlapped)
|
|
self.failUnlessEqual(hr, winerror.ERROR_IO_PENDING)
|
|
nbytes = win32file.GetOverlappedResult(hpipe, overlapped, True)
|
|
got = buffer[:nbytes]
|
|
self.failUnlessEqual(got, str2bytes("bar\0foo"))
|
|
event.wait(5)
|
|
self.failUnless(event.isSet(), "Pipe server thread didn't terminate")
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|