本文整理汇总了Python中win32file.GetOverlappedResult方法的典型用法代码示例。如果您正苦于以下问题:Python win32file.GetOverlappedResult方法的具体用法?Python win32file.GetOverlappedResult怎么用?Python win32file.GetOverlappedResult使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类win32file
的用法示例。
在下文中一共展示了win32file.GetOverlappedResult方法的12个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: serialReadEvent
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def serialReadEvent(self):
#get that character we set up
n = win32file.GetOverlappedResult(self._serial.hComPort, self._overlappedRead, 0)
if n:
first = str(self.read_buf[:n])
#now we should get everything that is already in the buffer
flags, comstat = win32file.ClearCommError(self._serial.hComPort)
if comstat.cbInQue:
win32event.ResetEvent(self._overlappedRead.hEvent)
rc, buf = win32file.ReadFile(self._serial.hComPort,
win32file.AllocateReadBuffer(comstat.cbInQue),
self._overlappedRead)
n = win32file.GetOverlappedResult(self._serial.hComPort, self._overlappedRead, 1)
#handle all the received data:
self.protocol.dataReceived(first + str(buf[:n]))
else:
#handle all the received data:
self.protocol.dataReceived(first)
#set up next one
win32event.ResetEvent(self._overlappedRead.hEvent)
rc, self.read_buf = win32file.ReadFile(self._serial.hComPort,
win32file.AllocateReadBuffer(1),
self._overlappedRead)
示例2: serialReadEvent
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def serialReadEvent(self):
#get that character we set up
n = win32file.GetOverlappedResult(self._serial._port_handle, self._overlappedRead, 0)
first = to_bytes(self.read_buf[:n])
#now we should get everything that is already in the buffer
flags, comstat = self._clearCommError()
if comstat.cbInQue:
win32event.ResetEvent(self._overlappedRead.hEvent)
rc, buf = win32file.ReadFile(self._serial._port_handle,
win32file.AllocateReadBuffer(comstat.cbInQue),
self._overlappedRead)
n = win32file.GetOverlappedResult(self._serial._port_handle, self._overlappedRead, 1)
#handle all the received data:
self.protocol.dataReceived(first + to_bytes(buf[:n]))
else:
#handle all the received data:
self.protocol.dataReceived(first)
#set up next one
win32event.ResetEvent(self._overlappedRead.hEvent)
rc, self.read_buf = win32file.ReadFile(self._serial._port_handle,
win32file.AllocateReadBuffer(1),
self._overlappedRead)
示例3: testTransactNamedPipeAsync
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
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")
示例4: acceptWorker
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def acceptWorker(self, port, running_event, stopped_event):
listener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
listener.bind(('', port))
listener.listen(200)
# create accept socket
accepter = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# An overlapped
overlapped = pywintypes.OVERLAPPED()
overlapped.hEvent = win32event.CreateEvent(None, 0, 0, None)
# accept the connection.
# We used to allow strings etc to be passed here, and they would be
# modified! Obviously this is evil :)
buffer = " " * 1024 # EVIL - SHOULD NOT BE ALLOWED.
self.assertRaises(TypeError, win32file.AcceptEx, listener, accepter, buffer, overlapped)
# This is the correct way to allocate the buffer...
buffer = win32file.AllocateReadBuffer(1024)
rc = win32file.AcceptEx(listener, accepter, buffer, overlapped)
self.failUnlessEqual(rc, winerror.ERROR_IO_PENDING)
# Set the event to say we are all ready
running_event.set()
# and wait for the connection.
rc = win32event.WaitForSingleObject(overlapped.hEvent, 2000)
if rc == win32event.WAIT_TIMEOUT:
self.fail("timed out waiting for a connection")
nbytes = win32file.GetOverlappedResult(listener.fileno(), overlapped, False)
#fam, loc, rem = win32file.GetAcceptExSockaddrs(accepter, buffer)
accepter.send(buffer[:nbytes])
# NOT set in a finally - this means *successfully* stopped!
stopped_event.set()
示例5: testAcceptEx
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def testAcceptEx(self):
port = 4680
running = threading.Event()
stopped = threading.Event()
t = threading.Thread(target=self.acceptWorker, args=(port, running,stopped))
t.start()
running.wait(2)
if not running.isSet():
self.fail("AcceptEx Worker thread failed to start")
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', port))
win32file.WSASend(s, str2bytes("hello"), None)
overlapped = pywintypes.OVERLAPPED()
overlapped.hEvent = win32event.CreateEvent(None, 0, 0, None)
# Like above - WSARecv used to allow strings as the receive buffer!!
buffer = " " * 10
self.assertRaises(TypeError, win32file.WSARecv, s, buffer, overlapped)
# This one should work :)
buffer = win32file.AllocateReadBuffer(10)
win32file.WSARecv(s, buffer, overlapped)
nbytes = win32file.GetOverlappedResult(s.fileno(), overlapped, True)
got = buffer[:nbytes]
self.failUnlessEqual(got, str2bytes("hello"))
# thread should have stopped
stopped.wait(2)
if not stopped.isSet():
self.fail("AcceptEx Worker thread failed to successfully stop")
示例6: _watcherThreadOverlapped
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def _watcherThreadOverlapped(self, dn, dh, changes):
flags = win32con.FILE_NOTIFY_CHANGE_FILE_NAME
buf = win32file.AllocateReadBuffer(8192)
overlapped = pywintypes.OVERLAPPED()
overlapped.hEvent = win32event.CreateEvent(None, 0, 0, None)
while 1:
win32file.ReadDirectoryChangesW(dh,
buf,
False, #sub-tree
flags,
overlapped)
# Wait for our event, or for 5 seconds.
rc = win32event.WaitForSingleObject(overlapped.hEvent, 5000)
if rc == win32event.WAIT_OBJECT_0:
# got some data! Must use GetOverlappedResult to find out
# how much is valid! 0 generally means the handle has
# been closed. Blocking is OK here, as the event has
# already been set.
nbytes = win32file.GetOverlappedResult(dh, overlapped, True)
if nbytes:
bits = win32file.FILE_NOTIFY_INFORMATION(buf, nbytes)
changes.extend(bits)
else:
# This is "normal" exit - our 'tearDown' closes the
# handle.
# print "looks like dir handle was closed!"
return
else:
print "ERROR: Watcher thread timed-out!"
return # kill the thread!
示例7: connect_thread_runner
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def connect_thread_runner(self, expect_payload, giveup_event):
# As Windows 2000 doesn't do ConnectEx, we need to use a non-blocking
# accept, as our test connection may never come. May as well use
# AcceptEx for this...
listener = socket.socket()
self.addr = ('localhost', random.randint(10000,64000))
listener.bind(self.addr)
listener.listen(1)
# create accept socket
accepter = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# An overlapped
overlapped = pywintypes.OVERLAPPED()
overlapped.hEvent = win32event.CreateEvent(None, 0, 0, None)
# accept the connection.
if expect_payload:
buf_size = 1024
else:
# when we don't expect data we must be careful to only pass the
# exact number of bytes for the endpoint data...
buf_size = win32file.CalculateSocketEndPointSize(listener)
buffer = win32file.AllocateReadBuffer(buf_size)
win32file.AcceptEx(listener, accepter, buffer, overlapped)
# wait for the connection or our test to fail.
events = giveup_event, overlapped.hEvent
rc = win32event.WaitForMultipleObjects(events, False, 2000)
if rc == win32event.WAIT_TIMEOUT:
self.fail("timed out waiting for a connection")
if rc == win32event.WAIT_OBJECT_0:
# Our main thread running the test failed and will never connect.
return
# must be a connection.
nbytes = win32file.GetOverlappedResult(listener.fileno(), overlapped, False)
if expect_payload:
self.request = buffer[:nbytes]
accepter.send(str2bytes('some expected response'))
示例8: write
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def write(self, s):
win32file.WriteFile(self._hfile, s, self._write_ovrlpd)
win32file.GetOverlappedResult(self._hfile, self._write_ovrlpd, True)
示例9: is_modified
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def is_modified(self, buffer):
print "path", self.path
result = win32file.ReadDirectoryChangesW(
self.handle,
buffer,
True,
win32con.FILE_NOTIFY_CHANGE_FILE_NAME
| win32con.FILE_NOTIFY_CHANGE_DIR_NAME
| win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES
| win32con.FILE_NOTIFY_CHANGE_SIZE
| win32con.FILE_NOTIFY_CHANGE_LAST_WRITE
| win32con.FILE_NOTIFY_CHANGE_SECURITY,
self.overlapped,
)
print "result 1", result
result = win32event.WaitForMultipleObjects([self.overlapped.hEvent], True, 0)
print "result 2", result
if result != win32event.WAIT_TIMEOUT:
# result = win32file.GetOverlappedResult(self.handle, self.overlapped, False)
return True
else:
return False
#===========================================================================
# Directory monitor class.
示例10: Write
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def Write(self, data, timeout):
if self.handle:
try:
self.lockObject.acquire()
if eg.debugLevel:
print "writing " + str(len(data)) + " bytes to " + self.getName()
if not self._overlappedWrite:
self._overlappedWrite = win32file.OVERLAPPED()
err, n = win32file.WriteFile(self.handle, data, self._overlappedWrite)
if err: #will be ERROR_IO_PENDING:
# Wait for the write to complete.
n = win32file.GetOverlappedResult(self.handle, self._overlappedWrite, 1)
if n != len(data):
raise Exception("could not write full data")
elif n != len(data):
raise Exception("could not write full data")
if timeout: #waits for response from device
win32event.ResetEvent(self._overlappedRead.hEvent)
res = win32event.WaitForSingleObject(self._overlappedRead.hEvent, timeout)
if res == win32event.WAIT_TIMEOUT:
raise Exception("no response from device within timeout")
finally:
self.lockObject.release()
else:
raise Exception("invalid handle")
return
示例11: read
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def read(self, n):
while True: # emulate blocking IO
if self._n >= n:
frags = []
frags_length = 0
if self.verbose:
txt = "get %s, | bufs = %s " % (n, self._n)
txt += "[%s]" % ','.join(map(lambda x: str(len(x)),
self._bufs))
print(txt)
while frags_length < n:
frags.append(self._bufs.pop(0))
frags_length += len(frags[-1])
self._n -= n
whole = ''.join(frags)
ret = whole[:n]
rest = whole[n:]
if len(rest) > 0:
self._bufs.append(rest)
if self.verbose:
txt = "return %s(%s), | bufs = %s " % (len(ret), n,
self._n)
txt += "[%s]" % ','.join(map(lambda x: str(len(x)),
self._bufs))
print(txt)
return ret
try:
# 4096 is the largest result viosdev will return right now.
err, b = win32file.ReadFile(self._hfile, 4096,
self._read_ovrlpd)
nr = win32file.GetOverlappedResult(self._hfile,
self._read_ovrlpd,
True)
if nr > 0:
self._bufs.append(b[:nr])
self._n += nr
if self.verbose:
txt = "read %s, err %s | bufs = %s " % (nr, err, self._n)
txt += "[%s]" % ','.join(map(lambda x: str(len(x)),
self._bufs))
print(txt)
except Exception:
pass
# Never Reached
raise Exception("Error in WinBufferedReadFile - should never be reached")
示例12: ReceiveThread
# 需要导入模块: import win32file [as 别名]
# 或者: from win32file import GetOverlappedResult [as 别名]
def ReceiveThread(self):
from win32event import (
ResetEvent,
MsgWaitForMultipleObjects,
QS_ALLINPUT,
WAIT_OBJECT_0,
WAIT_TIMEOUT,
)
from win32file import ReadFile, AllocateReadBuffer, GetOverlappedResult
from win32api import GetLastError
continueLoop = True
overlapped = self.serial._overlappedRead
hComPort = self.serial.hComPort
hEvent = overlapped.hEvent
stopEvent = self.stopEvent
n = 1
waitingOnRead = False
buf = AllocateReadBuffer(n)
while continueLoop:
if not waitingOnRead:
ResetEvent(hEvent)
hr, _ = ReadFile(hComPort, buf, overlapped)
if hr == 997:
waitingOnRead = True
elif hr == 0:
pass
#n = GetOverlappedResult(hComPort, overlapped, 1)
#self.HandleChar(str(buf))
else:
self.PrintError("error")
raise
rc = MsgWaitForMultipleObjects(
(hEvent, stopEvent),
0,
1000,
QS_ALLINPUT
)
if rc == WAIT_OBJECT_0:
n = GetOverlappedResult(hComPort, overlapped, 1)
if n:
self.HandleChar(str(buf))
#else:
# print "WAIT_OBJECT_0", n, str(buf[:n])
waitingOnRead = False
elif rc == WAIT_OBJECT_0+1:
continueLoop = False
elif rc == WAIT_TIMEOUT:
pass
else:
self.PrintError("unknown message")