def run(self): try: while 1: rc,b,c,ol = win32file.GetQueuedCompletionStatus( self.hiocp, 1000 ) if ol: #print rc,b,c,ol otype = len(ol.object) if otype == 2 : [userdata, fd] = ol.object if self.onresult : self.onresult( fd, rc, userdata, self.fds[fd][3], b ) elif otype == 1: #print rc, b,c,ol assert rc == 0 sock = ol.object[0] self.addsocket( self.infds[sock].insock ) if self.onaccept : self.onaccept( sock,self.infds[sock].insock , 0, self.infds[sock].data ) self.infds[sock].insock = socket.socket( socket.AF_INET, socket.SOCK_STREAM) win32file.AcceptEx( sock, self.infds[sock].insock, self.infds[sock].buffer, self.infds[sock].ol ) elif otype == 3: ol.object[1](*ol.object[2]) elif otype == 4 : fd = ol.object[1] if self.ondata : self.ondata( fd, ol.object[2][:b], ol.object[0], self.fds[fd][3] ) if b == 0: win32file.CloseHandle( fd.fileno() ) del self.fds[fd] except KeyboardInterrupt, r: self.stop = 1
def read_events(self, timeout=None):
timeout_ms = 0x7FFFFFFF
if timeout is not None:
timeout_ms = int(timeout * 1000)
if timeout_ms < 0 or timeout_ms >= 0x7FFFFFFF:
raise ValueError("Timeout value out of range")
try:
events = []
rc, num, key, _ = win32file.GetQueuedCompletionStatus(
self.__cphandle, timeout_ms)
if rc == 0:
with self.__lock:
watch = self.__key_to_watch.get(key)
if watch is not None and watch.enabled and not watch._removed:
events.extend(process_events(watch, num))
elif rc == 5:
with self.__lock:
watch = self.__key_to_watch.get(key)
if watch is not None and watch.enabled:
close_watch(watch)
del self.__key_to_watch[key]
events.append(FSEvent(watch, FSEvent.DeleteSelf))
return events
except pywintypes.error as e:
raise FSMonitorWindowsError(*e.args)
def testCompletionPortsQueued(self):
class Foo: pass
io_req_port = win32file.CreateIoCompletionPort(-1, None, 0, 0)
overlapped = pywintypes.OVERLAPPED()
overlapped.object = Foo()
win32file.PostQueuedCompletionStatus(io_req_port, 0, 99, overlapped)
errCode, bytes, key, overlapped = \
win32file.GetQueuedCompletionStatus(io_req_port, win32event.INFINITE)
self.failUnlessEqual(errCode, 0)
self.failUnless(isinstance(overlapped.object, Foo))
def _IOCPServerThread(self, handle, port, drop_overlapped_reference):
overlapped = pywintypes.OVERLAPPED()
win32pipe.ConnectNamedPipe(handle, overlapped)
if drop_overlapped_reference:
# Be naughty - the overlapped object is now dead, but
# GetQueuedCompletionStatus will still find it. Our check of
# reference counting should catch that error.
overlapped = None
# even if we fail, be sure to close the handle; prevents hangs
# on Vista 64...
try:
with pytest.raises(RuntimeError):
win32file.GetQueuedCompletionStatus(port, -1)
finally:
handle.Close()
return
result = win32file.GetQueuedCompletionStatus(port, -1)
ol2 = result[-1]
assert ol2 is overlapped
data = win32file.ReadFile(handle, 512)[1]
win32file.WriteFile(handle, data)
def _IOCPServerThread(self, handle, port, drop_overlapped_reference):
overlapped = pywintypes.OVERLAPPED()
win32pipe.ConnectNamedPipe(handle, overlapped)
if drop_overlapped_reference:
# Be naughty - the overlapped object is now dead, but
# GetQueuedCompletionStatus will still find it. Our check of
# reference counting should catch that error.
overlapped = None
self.failUnlessRaises(RuntimeError,
win32file.GetQueuedCompletionStatus, port, -1)
handle.Close()
return
result = win32file.GetQueuedCompletionStatus(port, -1)
ol2 = result[-1]
self.failUnless(ol2 is overlapped)
data = win32file.ReadFile(handle, 512)[1]
win32file.WriteFile(handle, data)
def wait_event(self, timeout):
"""returns (size, overlapped) on success, None on timeout"""
rc, size, _, overlapped = win32file.GetQueuedCompletionStatus(
self._port, int(timeout * 1000))
if rc == win32con.WAIT_TIMEOUT:
return None
elif rc == 0:
if overlapped is self._post_overlapped:
# ignore the overlapped -- it's was enqueued by post()
return None
else:
return size, overlapped, None
elif rc in IGNORED_ERRORS:
return size, overlapped, None
else:
ex = ctypes.WinError(rc)
if not overlapped:
raise ex
else:
return size, overlapped, ex
def read_events(self):
try:
events = []
rc, num, key, _ = win32file.GetQueuedCompletionStatus(
self.__cphandle, 1000)
if rc == 0:
with self.__lock:
watch = self.__key_to_watch.get(key)
if watch is not None and watch.enabled and not watch._removed:
for evt in process_events(watch, num):
events.append(evt)
elif rc == 5:
with self.__lock:
watch = self.__key_to_watch.get(key)
if watch is not None and watch.enabled:
close_watch(watch)
del self.__key_to_watch[key]
events.append(FSEvent(watch, FSEvent.DeleteSelf))
return events
except pywintypes.error, e:
raise FSMonitorWindowsError(*e.args)
completion_port = win32file.CreateIoCompletionPort(
win32file.INVALID_HANDLE_VALUE, None, 0, 0)
print win32file.CreateIoCompletionPort(handle, completion_port, 111, 0)
print win32file.CreateIoCompletionPort(sock.fileno(), completion_port, 222,
0)
tun_recv = TunnelRecv()
net_recv = NetworkRecv()
timer = TimerThread(1) # per second
timer.start()
while running:
timeout = last_send + keepalive_interval - now
rc, numberOfBytesTransferred, completionKey, overlapped = win32file.GetQueuedCompletionStatus(
completion_port, int(1000 * timeout))
if rc:
if rc == win32event.WAIT_TIMEOUT:
pass
else:
print "error %d" % rc
break
else:
if overlapped and overlapped.object:
overlapped.object.send(numberOfBytesTransferred)
else:
# timer
now = time.time()
if last_send + keepalive_interval <= now:
keepalive()
def wait(self, timeout):
res = win32file.GetQueuedCompletionStatus(self._port,
int(timeout * 1000))
return res
def pipe_server():
pipe = win32pipe.CreateNamedPipe(
r'\\.\pipe\my_pipe',
win32pipe.PIPE_ACCESS_INBOUND | win32file.FILE_FLAG_OVERLAPPED,
win32pipe.PIPE_TYPE_MESSAGE | win32pipe.PIPE_READMODE_MESSAGE
| win32pipe.PIPE_WAIT, 1, 65536, 65536, 0, None)
quit = False
overlapped_obj1 = pywintypes.OVERLAPPED()
completion_port = win32file.CreateIoCompletionPort(pipe, None, 0, 0)
while not quit:
try:
win32pipe.ConnectNamedPipe(pipe, overlapped_obj1)
while True: # Doing some sleep (2 seconds): Actually, other things could be done in this time
for i in range(10):
time.sleep(0.2)
# If the function succeeds, rc will be set to 0, otherwise it will be set to the win32 error code (258).
(rc, byte_num, key,
ovrlpd) = win32file.GetQueuedCompletionStatus(
completion_port, 50) #1000)
if rc == 0: # The message can be retrieved
msg = '' # Will contain the whole message at the end
"""
in order to read the characters we need to distinguish two cases:
-the character is a normal (unicode) character, which takes 1 byte
-the character is non_unicode (German, Russian...), which takes 2 bytes
as we are reading 1 byte at a time, the above-mentioned discussion is essential.
When a 1 byte character is coming, its decoding is done without problems.
Let's see what happens, when a 2-byte character is coming. In this case, we read
1 byte, try to decode, get an error. Now we know that the character takes 2-bytes.
Then, we read 1 byte again, combine them and decode.
"""
# 1-byte character case
try:
rtnvalue, data = win32file.ReadFile(
pipe, 1, overlapped_obj1)
msg = msg + bytes(data).decode("utf-8")
# 2-bytes character case
except:
rtnvalue, data1 = win32file.ReadFile(
pipe, 1, overlapped_obj1)
non_unicode = data.tobytes() + data1.tobytes()
msg = msg + non_unicode.decode("utf-8")
while rtnvalue == 234: # more data is available
try: # 1-byte character case
rtnvalue, data = win32file.ReadFile(
pipe, 1, overlapped_obj1)
msg = msg + bytes(data).decode("utf-8")
except: # 2-bytes character case
rtnvalue, data1 = win32file.ReadFile(
pipe, 1, overlapped_obj1)
non_unicode = data.tobytes() + data1.tobytes()
msg = msg + non_unicode.decode("utf-8")
# the next line helps with writing Russian and Armenian characters into a text file
with codecs.open('test.txt', 'w', encoding='utf-8') as f:
f.write(msg)
f.close()
print("Successfully received and written")
print("Closing Handle")
exit(0)
except pywintypes.error as e:
if e.args[0] == 109:
print("broken pipe")
quit = True
else:
print(e)
quit = True
win32file.CloseHandle(pipe)
def wait(self, timeout):
rc, size, key, overlapped = win32file.GetQueuedCompletionStatus(self._port, int(timeout * 1000))
if rc == 0:
pass
else:
pass
def wait_good(self):
# keep a reference to the overlapped object
self.result = win32file.GetQueuedCompletionStatus(self.port, -1)[3]
def wait_buggy(self):
win32file.GetQueuedCompletionStatus(self.port, -1)
