import win32file, sys
hdevice = win32file.CreateFile(
"\\\\.\\SendCallout", win32file.GENERIC_READ | win32file.GENERIC_WRITE,
win32file.FILE_SHARE_READ, None, win32file.OPEN_EXISTING, 0, 0)
(resultCode, resultBuffer) = win32file.ReadFile(hdevice, 100000, None)
for i in range(len(resultBuffer)):
b = resultBuffer[i]
print(hex(b), "\t", end="")
if len(sys.argv) > 1:
actionString = sys.argv[1]
else:
actionString = "Block"
result = win32file.WriteFile(hdevice, bytearray(actionString,
encoding="ascii"), None)
print(result)
print("symbolic link has already been created")
# wait a bit to ensure that symbolic links have been created
time.sleep(1)
object_class = ROSMessagePublisher()
rospy.init_node('ros_publisher', anonymous=True)
pipe = create_pipe("ROS_messages")
print("waiting for client from FarmSim19")
win32pipe.ConnectNamedPipe(pipe, None)
print("got client from game!!")
while not rospy.is_shutdown():
read_sz = 64 * 1024
resp = win32file.ReadFile(pipe, read_sz)
# convert json data from lua to ros message (data read from the pipe is in bytes: need to convert to string)
msg_list = resp[1].decode("utf-8").split("\n")
if msg_list[0] == "rosgraph_msgs/Clock":
sim_time_msg = json_message_converter.convert_json_to_ros_message(
'rosgraph_msgs/Clock', msg_list[1])
object_class.pub_sim.publish(sim_time_msg)
elif msg_list[0] == "nav_msgs/Odometry":
odom_msg = json_message_converter.convert_json_to_ros_message(
'nav_msgs/Odometry', msg_list[1])
object_class.pub_odom.publish(odom_msg)
elif msg_list[0] == "sensor_msgs/LaserScan":
def recv(self, max_length):
(err, data) = win32file.ReadFile(self.handle, max_length)
if err:
raise IOError(err)
return data
def read(self, offset, length):
win32file.SetFilePointer(self.fhandle, offset, 0)
_, data = win32file.ReadFile(self.fhandle, length)
return data
## subprocess.check_call('python waveopt_interface.py --slm_width 192 --slm_height 144 --plot True --pipe_in_handle \\\\.\\pipe\\LABVIEW_OUT --pipe_out_handle \\\\.\\pipe\\LABVIEW_IN', stderr=f)
#### df = Popen(["ls", "/home/non"], stdout=subprocess.PIPE)
## p = subprocess.Popen('python waveopt_interface.py --slm_width 192 --slm_height 144 --plot True --pipe_in_handle \\\\.\\pipe\\LABVIEW_OUT --pipe_out_handle \\\\.\\pipe\\LABVIEW_IN',
## creationflags=CREATE_NEW_CONSOLE, stdout=subprocess.PIPE)
##
## output, err = p.communicate()
## except subprocess.CalledProcessError as e:
## print(e)
## exit(1)
print('...done')
for i in range(30000000):
wp.ConnectNamedPipe(pipe_in, None)
wp.ConnectNamedPipe(pipe_out, None)
read_pipe = wf.ReadFile(pipe_in, get_buffer_size(pipe_in,
NUM_BYTES_BUFFER))
read_array = list(read_pipe[1])
print('pipe read...')
### Plot Masks after reading ####
## plt.matshow(np.asarray(read_array).reshape(l,k))
## plt.show()
out_field = trans(I * np.exp(1j * phdist[read_array]), tmat)[:5]
## print(out_field)
## out_field = read_array
data = bytearray(
len(bytearray(out_field)).to_bytes(
NUM_BYTES_BUFFER, byteorder='big')) + bytearray(out_field)
wf.WriteFile(pipe_out, data)
def recv(self, buff_size):
_, data = win32file.ReadFile(self.handle, buff_size)
return data
def get_buffer_size(self):
"""Return buffer size as int."""
buffer_size = int.from_bytes(wf.ReadFile(self.pipe_handle_in, self.num_bytes_buffer)[1], byteorder='little', signed=False)
return buffer_size
def read_pipe(self, size):
return win32file.ReadFile(self.read_handle, size, None)[1]
# versione named pipe per VirtualBox
ser = win32file.CreateFile("\\\\.\\pipe\\planetario",
win32file.GENERIC_READ | win32file.GENERIC_WRITE, 0,
None, win32file.OPEN_EXISTING, 0, None)
if ser == win32file.INVALID_HANDLE_VALUE:
print "can't open named pipe"
exit(-1)
#ser = serial.Serial(port='COM1', baudrate=4800, timeout=0)
# loop di aggiornamento
while True:
rate(100) # controllori girano a 32.768 ms (circa 30.5 Hz)
# verifica che ci siano abbastanza dati nel buffer seriale
(buffer, bytesToRead, result) = win32pipe.PeekNamedPipe(ser, 1000)
if result and bytesToRead + len(_ser_buffer) >= 5:
(result, data) = win32file.ReadFile(ser, bytesToRead)
if not result and len(data):
if dbg_verbose:
for c in data:
print "%02X " % (ord(c), ),
# appendi nuovi dati da seriale
_ser_buffer += data
# consuma tutti i dati disponibili
isData = True
while (isData):
(isData, response) = simpla_msg()
if isData:
if len(response):
# rispondi
#ser.write(response[1])
def _recv_into_py2(self, buf, nbytes):
err, data = win32file.ReadFile(self._handle, nbytes or len(buf))
n = len(data)
buf[:n] = data
return n
def _ReadRandom(self, offset, length):
win32file.SetFilePointer(self.fd, offset, 0)
_, data = win32file.ReadFile(self.fd, length)
return data
def recv(self, bufsize, flags=0):
err, data = win32file.ReadFile(self._handle, bufsize)
return data
def communication_win(self, is_check):
# event, overlapped struct for the pipe or tunnel
hEvent_pipe = win32event.CreateEvent(None, 0, 0,
None) # for reading from the pipe
overlapped_pipe = pywintypes.OVERLAPPED()
overlapped_pipe.hEvent = hEvent_pipe
# event, overlapped struct for the pipe or tunnel
hEvent_rdp = win32event.CreateEvent(None, 0, 0,
None) # for reading from the pipe
overlapped_rdp = pywintypes.OVERLAPPED()
overlapped_rdp.hEvent = hEvent_rdp
# buffer for the packets
message_readfile_pipe = win32file.AllocateReadBuffer(4096)
message_readfile_rdp = win32file.AllocateReadBuffer(4096)
# showing if we already async reading or not
read_pipe = True
read_rdp = False
first_run = True
while not self._stop:
try:
if not self.tunnel_r:
# user is not authenticated yet, so there is no pipe
# only checking the socket for data
hr, _ = win32file.ReadFile(self.comms_socket,
message_readfile_rdp,
overlapped_rdp)
if (hr == winerror.ERROR_IO_PENDING):
rc = win32event.WaitForSingleObject(
hEvent_rdp, int(self.timeout * 1000))
read_rdp = True
else:
raise
rc = 0
else:
# client mode so we have the socket and tunnel as well
# or the client authenticated and the pipe was created
if read_pipe or first_run:
# no ReadFile was called before or finished, so we
# are calling it again
first_run = False
hr, _ = win32file.ReadFile(self.tunnel_r,
message_readfile_pipe,
overlapped_pipe)
if read_rdp:
# no ReadFile was called before or finished, so we
# are calling it again
hr, _ = win32file.ReadFile(self.comms_socket,
message_readfile_rdp,
overlapped_rdp)
if (hr == winerror.ERROR_IO_PENDING):
# well, this was an async read, so we need to wait
# until it happens
rc = win32event.WaitForMultipleObjects(
[hEvent_rdp, hEvent_pipe], 0,
int(self.timeout * 1000))
if rc == winerror.WAIT_TIMEOUT:
# timed out, just rerun and wait
continue
else:
if hr != 0:
common.internal_print(
"RDP ReadFile failed: {0}".format(hr), -1)
raise
if rc < 0x80: # STATUS_ABANDONED_WAIT_0
if rc == 0:
read_rdp = True
read_pipe = False
# socket got signalled
# skipping header (8):length of read
messages = self.recv(
message_readfile_rdp[8:overlapped_rdp.
InternalHigh]) # SLOW?
for message in messages:
# looping through the messages from socket
if len(message) == 0:
# this could happen when the socket died or
# partial message was read.
continue
if common.is_control_channel(message[0:1]):
# parse control messages
if self.controlchannel.handle_control_messages(
self,
message[len(common.CONTROL_CHANNEL_BYTE
):], None):
continue
else:
# If the module is stopped right away, then
# the channel will be closing down as well.
# Because of the buffering the message will
# not be sent. That is why we need to sleep
time.sleep(0.5)
self.stop()
break
if self.authenticated:
try:
# write packet to the tunnel
self.packet_writer(
message[len(common.CONTROL_CHANNEL_BYTE
):])
except OSError as e:
print(e) # wut?
except Exception as e:
if e.args[0] == 995:
common.internal_print(
"Interface disappered, exiting thread: {0}"
.format(e), -1)
self.stop()
continue
print(e)
if rc == 1:
read_rdp = False
read_pipe = True
# pipe/tunnel got signalled
if (overlapped_pipe.InternalHigh <
4) or (message_readfile_pipe[0:1] !=
"\x45"): #Only care about IPv4
# too small which should not happen or not IPv4, so we just drop it.
continue
# reading out the packet from the buffer and discarding the rest
readytogo = message_readfile_pipe[0:overlapped_pipe.
InternalHigh]
self.send(common.DATA_CHANNEL_BYTE, readytogo, None)
except win32api.error as e:
if e.args[0] == 233:
# No process is on the other end of the pipe.
self._stop = True
common.internal_print("Client disconnected from the pipe.",
-1)
continue
common.internal_print("RDP Exception: {0}".format(e), -1)
self.cleanup()
return True
def HandleData(self):
"""
This runs once a connection to the named pipe is made. It receives the ir data and passes it to the plugins IRDecoder.
"""
#if self.sentMessageOnce:
# eg.PrintNotice("MCE_Vista: Connected to MceIr pipe, started handling IR events")
# self.plugin.TriggerEvent("Connected")
nMax = 2048
self.result = []
self.freqs = [0]
self.readOvlap = win32file.OVERLAPPED()
self.readOvlap.hEvent = win32event.CreateEvent(None, 0, 0, None)
handles = [self.plugin.hFinishedEvent, self.readOvlap.hEvent]
self.timeout = win32event.INFINITE
while self.keepRunning:
try:
(hr, data) = win32file.ReadFile(self.file, nMax,
self.readOvlap)
except:
win32file.CloseHandle(self.file)
self.file = None
break
self.receivingTimeout = eg.scheduler.AddTask(
0.3, self.SetReceiving, False)
rc = win32event.WaitForMultipleObjects(handles, False,
self.timeout)
self.SetReceiving(True)
if rc == win32event.WAIT_OBJECT_0: #Finished event
self.keepRunning = False
break
elif rc == win32event.WAIT_TIMEOUT: #Learn timeout
#eg.PrintNotice("LearnTimeout: Sending ir code %s"%str(self.result))
self.learnDialog.GotCode(self.freqs, self.result)
self.result = []
self.timeout = win32event.INFINITE
rc = win32event.WaitForMultipleObjects(handles, False,
self.timeout)
if rc == win32event.WAIT_OBJECT_0: #Finished event
self.keepRunning = False
break
try:
nGot = self.readOvlap.InternalHigh
if nGot == 0:
continue
if nGot % ptr_len == 1: #Query result, not ir code data
if data[0] == "b".encode("ascii"):
self.deviceInfo = unpack_from(6 * ptr_fmt,
data[1:nGot])
win32event.SetEvent(self.deviceInfoEvent)
elif data[0] == "t".encode("ascii"):
win32event.SetEvent(self.deviceTestEvent)
continue
#pull of the header data
while nGot > 0:
header = unpack_from(3 * ptr_fmt, data)
if header[0] == 1 and header[2] > 0:
self.freqs.append(header[2])
dataEnd = nGot
if nGot > 100 + 3 * ptr_len:
dataEnd = 100 + 3 * ptr_len
nGot -= dataEnd
val_data = data[3 * ptr_len:dataEnd]
dataEnd = dataEnd - 3 * ptr_len
vals = unpack_from((dataEnd / 4) * "i", val_data)
data = data[100 + 3 * ptr_len:]
for i, v in enumerate(vals):
a = abs(v)
self.result.append(a)
if self.learnDialog is None: #normal mode
if a > 6500: #button held?
if self.CodeValid(self.result):
#eg.PrintNotice("Sending ir code %s"%str(self.result))
self.plugin.irDecoder.Decode(
self.result, len(self.result))
self.result = []
if not self.learnDialog is None: #learn mode
if header[0] == 1: #one "learn" chunk
self.timeout = self.learnTimeout
except:
pass
self.SetReceiving(False)
def ReadPipe(pp,size=1024*4+1):
CloseHandle(pp[1])
ret=win32file.ReadFile(pp[0],size)
CloseHandle(pp[0])
return ret[1][1:]
def parse_pipe_data(self):
left, data = win32file.ReadFile(fileHandle, 4096)
# print("DATA: ", data)
first_split = data.decode().strip().split(",")
string_vector = [first_split[0].strip().split(" ")[1], first_split[1].strip(), first_split[2].strip()]
return [float(i) for i in string_vector]
def recvfrom(self, buff_size):
response_code, data = win32file.ReadFile(self.handle, buff_size)
return data, response_code
def get(self):
return win32file.ReadFile(self.handle, 64*1024)[1]
def demo():
"""
Definition of buffer used with FSCTL_TXFS_CREATE_MINIVERSION:
typedef struct _TXFS_CREATE_MINIVERSION_INFO{
USHORT StructureVersion;
USHORT StructureLength;
ULONG BaseVersion;
USHORT MiniVersion;}
"""
buf_fmt = 'HHLH0L' ## buffer size must include struct padding
buf_size = struct.calcsize(buf_fmt)
tempdir = win32api.GetTempPath()
tempfile = win32api.GetTempFileName(tempdir, 'cft')[0]
print("Demonstrating transactions on tempfile", tempfile)
f = open(tempfile, 'w')
f.write('This is original file.\n')
f.close()
trans = win32transaction.CreateTransaction(
Description='Test creating miniversions of a file')
hfile = win32file.CreateFileW(
tempfile,
win32con.GENERIC_READ | win32con.GENERIC_WRITE,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE,
None,
win32con.OPEN_EXISTING,
0,
None,
Transaction=trans)
win32file.WriteFile(hfile, str2bytes('This is first miniversion.\n'))
buf = win32file.DeviceIoControl(hfile,
winioctlcon.FSCTL_TXFS_CREATE_MINIVERSION,
None, buf_size, None)
struct_ver, struct_len, base_ver, ver_1 = struct.unpack(buf_fmt, buf)
win32file.SetFilePointer(hfile, 0, win32con.FILE_BEGIN)
win32file.WriteFile(hfile, str2bytes('This is second miniversion!\n'))
buf = win32file.DeviceIoControl(hfile,
winioctlcon.FSCTL_TXFS_CREATE_MINIVERSION,
None, buf_size, None)
struct_ver, struct_len, base_ver, ver_2 = struct.unpack(buf_fmt, buf)
hfile.Close()
## miniversions can't be opened with write access
hfile_0 = win32file.CreateFileW(tempfile,
win32con.GENERIC_READ,
win32con.FILE_SHARE_READ
| win32con.FILE_SHARE_WRITE,
None,
win32con.OPEN_EXISTING,
0,
None,
Transaction=trans,
MiniVersion=base_ver)
print('version:', base_ver, win32file.ReadFile(hfile_0, 100))
hfile_0.Close()
hfile_1 = win32file.CreateFileW(tempfile,
win32con.GENERIC_READ,
win32con.FILE_SHARE_READ
| win32con.FILE_SHARE_WRITE,
None,
win32con.OPEN_EXISTING,
0,
None,
Transaction=trans,
MiniVersion=ver_1)
print('version:', ver_1, win32file.ReadFile(hfile_1, 100))
hfile_1.Close()
hfile_2 = win32file.CreateFileW(tempfile,
win32con.GENERIC_READ,
win32con.FILE_SHARE_READ
| win32con.FILE_SHARE_WRITE,
None,
win32con.OPEN_EXISTING,
0,
None,
Transaction=trans,
MiniVersion=ver_2)
print('version:', ver_2, win32file.ReadFile(hfile_2, 100))
hfile_2.Close()
## MiniVersions are destroyed when transaction is committed or rolled back
win32transaction.CommitTransaction(trans)
os.unlink(tempfile)
def read(self, bytesToRead=None):
if bytesToRead is None:
bytesToRead = self.file_size
hr, data = win32file.ReadFile(self.handle, bytesToRead, None)
return data.replace('\r', '')
TAP_IOCTL_CONFIG_POINT_TO_POINT = TAP_CONTROL_CODE(5, 0)
TAP_IOCTL_SET_MEDIA_STATUS = TAP_CONTROL_CODE(6, 0)
TAP_IOCTL_CONFIG_TUN = TAP_CONTROL_CODE(10, 0)
if __name__ == '__main__':
guid = get_device_guid()
handle = win32file.CreateFile(
r'\\.\Global\%s.tap' % guid,
win32file.GENERIC_READ | win32file.GENERIC_WRITE,
win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE,
None,
win32file.OPEN_EXISTING,
win32file.FILE_ATTRIBUTE_SYSTEM, # | win32file.FILE_FLAG_OVERLAPPED,
None)
print(handle.handle)
if False:
win32file.DeviceIoControl(handle, TAP_IOCTL_CONFIG_POINT_TO_POINT,
'\xc0\xa8\x11\x01\xc0\xa8\x11\x10', None)
else:
win32file.DeviceIoControl(handle, TAP_IOCTL_SET_MEDIA_STATUS,
'\x01\x00\x00\x00', None)
win32file.DeviceIoControl(
handle, TAP_IOCTL_CONFIG_TUN,
'\x0a\x03\x00\x01\x0a\x03\x00\x00\xff\xff\xff\x00', None)
while True:
l, p = win32file.ReadFile(handle, 2000)
q = p[:12] + p[16:20] + p[12:16] + p[20:]
win32file.WriteFile(handle, q)
print(p, q)
win32file.CloseHandle(handle)
def bpgdecode(self,filename):
msg=None
cmd=self.bpgpath+' -o '
if self.img:
del self.img
self.img=None
if len(filename)>4 and filename[-4:].lower()=='.bpg':
try:
if not(isfile(filename) and access(filename,R_OK)):
msg=_('Unable to open')+'\"%s\"!'%filename
except: return False
if not(msg):
err=0
try:
imbuffer=''
if osflag:
fifo=osopen(self.fifo,O_RDONLY|O_NONBLOCK)
cmd+=self.fifo+' "'+realpath(filename)+'"'+\
' >/dev/null 2>&1'
f=Popen(cmd,shell=True,stdin=None,stdout=None,\
stderr=None)
if fifo:
while True:
if f.poll()!=None: break;
try: data=osread(fifo,16777216)
except OSError as e:
if e.errno==errno.EAGAIN or\
e.errno==errno.EWOULDBLOCK: data=''
else: raise
if len(data): imbuffer+=data
osclose(fifo)
else:
si=STARTUPINFO()
si.dwFlags|=1
si.wShowWindow=0
pname='\\\\.\\pipe\\'+basename(self.fifo)
tpipe=win32pipe.CreateNamedPipe(
pname,
win32pipe.PIPE_ACCESS_DUPLEX,
win32pipe.PIPE_TYPE_BYTE|win32pipe.PIPE_WAIT,
1,16777216,16777216,2000,None)
cmd+=pname+' "'+realpath(filename)+'"'
f=Popen(cmd,shell=False,stdin=None,stdout=None,\
stderr=None,bufsize=0,startupinfo=si)
win32pipe.ConnectNamedPipe(tpipe,None)
imbuffer=''
if tpipe:
while True:
data=None
try: data=win32file.ReadFile(tpipe,16777216)
except: data=None
if not(data): break
if data[0]!=0: break
if len(data[1]): imbuffer+=data[1]
win32pipe.DisconnectNamedPipe(tpipe)
f.wait()
if len(imbuffer):
if imbuffer[0]=='a': mode='RGBA'
else: mode='RGB'
x,=unpack("i",imbuffer[1:5])
y,=unpack("i",imbuffer[5:9])
try: self.img=Image.fromstring(mode,(x,y),imbuffer[9:])
except: err=1
del imbuffer
else: err=1
except: err=1
if err: msg=_('BPG decoding error!\n')
else: msg=_('File')+' \"%s\" '%filename+_('is not a BPG-File!')
if msg:
print msg
errmsgbox(msg)
if self.img:
del self.img
self.img=None
else: return True
return False
# For visualization
#cv2.namedWindow('vis', cv2.WINDOW_NORMAL)
#cv2.resizeWindow('vis', FRAME_WIDTH, FRAME_HEIGHT)
frame_counter = 0
displayText = ''
while True:
try:
# Send request to pipe server
request_msg = "Request depth image and ir image"
win32file.WriteFile(fileHandle, request_msg.encode())
# Read reply data, need to be in same order/size as how you write them in the pipe server in pipe_streaming_example/main.cpp
depth_data = win32file.ReadFile(
fileHandle, FRAME_WIDTH * FRAME_HEIGHT * BYTES_PER_PIXEL)
ab_data = win32file.ReadFile(
fileHandle, FRAME_WIDTH * FRAME_HEIGHT * BYTES_PER_PIXEL)
# Reshape for image visualization
depth_img_full = np.frombuffer(depth_data[1],
dtype=np.uint16).reshape(
FRAME_HEIGHT,
FRAME_WIDTH).copy()
ab_img_full = np.frombuffer(ab_data[1], dtype=np.uint16).reshape(
FRAME_HEIGHT, FRAME_WIDTH).copy()
depth_vis = (plt.get_cmap("gray")(
depth_img_full / MAX_DEPTH_FOR_VIS)[..., :3] * 255.0).astype(
np.uint8)
ab_vis = (
plt.get_cmap("gray")(ab_img_full / MAX_AB_FOR_VIS)[..., :3] *
def read(self, size=0, full=False, timeout=None):
"""Read at most 'size' bytes from file; if 'size' <= 0,
all data up to EOF is read and returned. If 'full' is
True, exactly 'size' bytes are returned (unless EOF or
timeout occur before). If EOF is encountered before any
more data is available, empty buffer is returned.
If no data has been read before timeout, then
IOError('timedout') will be thrown.
If timeout is given and full is True and timeout expires
before all the data could be read, it returns partial data
read before timeout if any data has been read.
Must be used in a coroutine with 'yield' as
'data = yield fd.read(1024)'
"""
def _read(size, full, rc, n):
if rc or n == 0:
if self._timeout:
self._notifier._del_timeout(self)
self._overlap.object = self._read_result = None
if rc != winerror.ERROR_OPERATION_ABORTED:
if (self._buflist or rc == winerror.ERROR_HANDLE_EOF
or rc == winerror.ERROR_BROKEN_PIPE):
buf, self._buflist = ''.join(self._buflist), []
self._read_coro._proceed_(buf)
return
self._read_coro.throw(IOError(rc, 'ReadFile', str(rc)))
self._overlap.object = self._read_coro = self._read_result = None
return
buf = self._read_result[:n]
if size > 0:
size -= len(buf)
assert size >= 0
if size == 0:
full = False
self._buflist.append(buf)
self._overlap.Offset += n
if full:
self._overlap.object = partial_func(_read, size, full)
try:
rc, _ = win32file.ReadFile(self._handle,
self._read_result,
self._overlap)
except pywintypes.error as exc:
rc = exc.winerror
if rc and rc != winerror.ERROR_IO_PENDING:
buf, self._buflist = ''.join(self._buflist), []
self._overlap.object = self._read_result = None
if self._timeout:
self._notifier._del_timeout(self)
self._read_coro._proceed_(buf)
self._read_coro = None
return
if self._buflist:
buf, self._buflist = ''.join(self._buflist), []
if self._timeout:
self._notifier._del_timeout(self)
self._overlap.object = self._read_result = None
self._read_coro._proceed_(buf)
self._read_coro = None
if not self._asyncoro:
self._asyncoro = AsynCoro.scheduler()
self._notifier = self._asyncoro._notifier
self._notifier.register(self._handle)
if not size or size < 0:
count = 16384
full = True
else:
if self._buflist:
buf, self._buflist = ''.join(self._buflist), []
if len(buf) > size:
buf, self._buflist = buf[:size], [buf[size:]]
if (not full) or (len(buf) == size):
return buf
self._buflist = [buf]
size -= len(buf)
count = size
self._read_result = win32file.AllocateReadBuffer(count)
self._overlap.object = partial_func(_read, size, full)
self._read_coro = AsynCoro.cur_coro(self._asyncoro)
self._read_coro._await_()
try:
rc, _ = win32file.ReadFile(self._handle, self._read_result,
self._overlap)
except pywintypes.error as exc:
if exc.winerror == winerror.ERROR_BROKEN_PIPE:
buf, self._buflist = ''.join(self._buflist), []
self._read_coro._proceed_(buf)
self._read_result = self._read_coro = self._overlap.object = None
return
else:
rc = exc.winerror
if rc and rc != winerror.ERROR_IO_PENDING:
self._overlap.object = self._read_result = self._read_coro = None
self._read_coro.throw(IOError(rc, 'ReadFile', str(rc)))
if timeout:
self._timeout = timeout
self._notifier._add_timeout(self)
def get_buffer_size(pipe_handle, num_bytes):
buffer_size = int.from_bytes(wf.ReadFile(pipe_handle, num_bytes)[1],
byteorder='big')
return buffer_size
def fread(self, length):
length = int(length)
_, data = win32file.ReadFile(self.fhandle, length)
print "fread to read length:{0} actual readd {1}".format(
length, len(data))
return data
"\\\\.\\pipe\\mynamedpipe",
win32file.GENERIC_READ | win32file.GENERIC_WRITE, 0, None,
win32file.OPEN_EXISTING, 0, None)
OldStamp = -1.
loss = 0
acc = 0
labelIndex = 0
while True:
if not runTest:
request_msg = "Request bodyInfo"
win32file.WriteFile(fileHandle, request_msg.encode())
inputData = win32file.ReadFile(fileHandle,
1168) #(32*6+1) * 4bytes
data = np.frombuffer(inputData[1],
dtype="float32",
count=-1,
offset=0)
else:
data = testRun.GetNextValue()
if data == None:
break
if (OldStamp != data[288]):
OldStamp = data[288]
if (len(buffer) == clipFrames):
buffer.pop(0)
elif not testRun:
buffer.append(
inputData = []
quit = False
resp = []
while not quit:
try:
handle = win32file.CreateFile(
r'\\.\pipe\pythonPipe',
win32file.GENERIC_READ | win32file.GENERIC_WRITE, 0, None,
win32file.OPEN_EXISTING, 0, None)
win32pipe.SetNamedPipeHandleState(handle,
win32pipe.PIPE_READMODE_MESSAGE,
None, None)
resp = win32file.ReadFile(handle, 64 * 1024)[1].decode('utf-16')
except pywintypes.error as e:
if e.args[0] == 2:
time.sleep(1)
if resp != []:
quit = True
inputData = json.loads(resp)
xSymbol, ySymbol = sympy.symbols('x y')
expression = parse_expr(inputData["Expression"].replace("^", "**").replace(
"exp", "E**"))
x, y, z = makeData(inputData["XStart"], inputData["XEnd"], inputData["YStart"],
inputData["YEnd"], expression)
gui='0'
#Make the Pipe Connections
#Define the pipe
p1 = win32pipe.CreateNamedPipe(r'\\.\pipe\netsim_sumo_pipe',
win32pipe.PIPE_ACCESS_DUPLEX,
win32pipe.PIPE_TYPE_MESSAGE | win32pipe.PIPE_WAIT,
1, 65536, 65536,300,None)
print("Waiting for netsim to connect...")
#Connect the Pipe
win32pipe.ConnectNamedPipe(p1, None)
#Read once
data = win32file.ReadFile(p1, 4096) #Get whether GUI =1 or 0 from Netsim
gui=data[1][0]
#The value of 'gui' is read from: data = win32file.ReadFile(p1,4096)
#In Pyton-3, the value of 'gui' is an ASCII of the string char(48 for '0') i.e., an int type, whereas in Python-2 the value of 'gui' is directly of str type.
# So we are converting the ASCII to char only if it is of int type ---> We are using 'if' to also make the code compatable with Python-2
if isinstance(gui, int):
gui = chr(gui)
#Lets check whether Sumo is present or not, and then go to the tools folder of Sumo
print("Checking Sumo...")
try:
sys.path.append(os.path.join(SUMO_HOME, "tools")) #go to tools folder
from sumolib import checkBinary #A sumo back-end library to check if sumo is present or not
except ImportError:
sys.exit("Please declare environment variable 'SUMO_HOME' as the root directory of your sumo installation (it should contain folders 'bin', 'tools' and 'docs')")
def Read(self):
data = win32file.ReadFile(self._pipeHandle, 65536)
return data[1]