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/usr/lib/python3/dist-packages/twisted/internet/

/usr/lib/python3/dist-packages/twisted/internet

Name	Size	Mode	Actions
iocpreactor/	-	0755	rm
test/	-	0755	rm
__pycache__/	-	0755	rm
abstract.py	19274	0644	edit dl rm
address.py	5246	0644	edit dl rm
asyncioreactor.py	10553	0644	edit dl rm
base.py	44260	0644	edit dl rm
cfreactor.py	17501	0644	edit dl rm
default.py	1942	0644	edit dl rm
defer.py	71193	0644	edit dl rm
endpoints.py	77207	0644	edit dl rm
epollreactor.py	8493	0644	edit dl rm
error.py	12645	0644	edit dl rm
fdesc.py	3223	0644	edit dl rm
gireactor.py	6123	0644	edit dl rm
glib2reactor.py	1115	0644	edit dl rm
gtk2reactor.py	3614	0644	edit dl rm
gtk3reactor.py	2252	0644	edit dl rm
inotify.py	14691	0644	edit dl rm
interfaces.py	96515	0644	edit dl rm
kqreactor.py	10292	0644	edit dl rm
main.py	1054	0644	edit dl rm
pollreactor.py	6026	0644	edit dl rm
posixbase.py	26357	0644	edit dl rm
process.py	38896	0644	edit dl rm
protocol.py	27134	0644	edit dl rm
pyuisupport.py	817	0644	edit dl rm
reactor.py	1863	0644	edit dl rm
selectreactor.py	6215	0644	edit dl rm
serialport.py	2317	0644	edit dl rm
ssl.py	8444	0644	edit dl rm
stdio.py	1045	0644	edit dl rm
task.py	31119	0644	edit dl rm
tcp.py	54908	0644	edit dl rm
threads.py	3953	0644	edit dl rm
tksupport.py	2045	0644	edit dl rm
udp.py	18569	0644	edit dl rm
unix.py	21965	0644	edit dl rm
utils.py	7876	0644	edit dl rm
win32eventreactor.py	15193	0644	edit dl rm
wxreactor.py	5263	0644	edit dl rm
wxsupport.py	1363	0644	edit dl rm
_baseprocess.py	1913	0644	edit dl rm
_dumbwin32proc.py	13107	0644	edit dl rm
_glibbase.py	12813	0644	edit dl rm
_idna.py	1397	0644	edit dl rm
_newtls.py	9332	0644	edit dl rm
_pollingfile.py	8982	0644	edit dl rm
_posixserialport.py	1995	0644	edit dl rm
_posixstdio.py	4687	0644	edit dl rm
_producer_helpers.py	3788	0644	edit dl rm
_resolver.py	8530	0644	edit dl rm
_signals.py	2718	0644	edit dl rm
_sslverify.py	71770	0644	edit dl rm
_threadedselect.py	11764	0644	edit dl rm
_win32serialport.py	4744	0644	edit dl rm
_win32stdio.py	3204	0644	edit dl rm
__init__.py	521	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/twisted/internet/_win32serialport.py (4744B)

# -*- test-case-name: twisted.internet.test.test_win32serialport -*-

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Serial port support for Windows.

Requires PySerial and pywin32.
"""

from __future__ import division, absolute_import

# system imports
from serial import PARITY_NONE
from serial import STOPBITS_ONE
from serial import EIGHTBITS
from serial.serialutil import to_bytes
import win32file, win32event

# twisted imports
from twisted.internet import abstract

# sibling imports
from twisted.internet.serialport import BaseSerialPort

class SerialPort(BaseSerialPort, abstract.FileDescriptor):
    """A serial device, acting as a transport, that uses a win32 event."""

connected = 1

def __init__(self, protocol, deviceNameOrPortNumber, reactor, 
        baudrate = 9600, bytesize = EIGHTBITS, parity = PARITY_NONE,
        stopbits = STOPBITS_ONE, xonxoff = 0, rtscts = 0):
        self._serial = self._serialFactory(
            deviceNameOrPortNumber, baudrate=baudrate, bytesize=bytesize,
            parity=parity, stopbits=stopbits, timeout=None,
            xonxoff=xonxoff, rtscts=rtscts)
        self.flushInput()
        self.flushOutput()
        self.reactor = reactor
        self.protocol = protocol
        self.outQueue = []
        self.closed = 0
        self.closedNotifies = 0
        self.writeInProgress = 0

self.protocol = protocol
        self._overlappedRead = win32file.OVERLAPPED()
        self._overlappedRead.hEvent = win32event.CreateEvent(None, 1, 0, None)
        self._overlappedWrite = win32file.OVERLAPPED()
        self._overlappedWrite.hEvent = win32event.CreateEvent(None, 0, 0, None)

self.reactor.addEvent(self._overlappedRead.hEvent, self, 'serialReadEvent')
        self.reactor.addEvent(self._overlappedWrite.hEvent, self, 'serialWriteEvent')

self.protocol.makeConnection(self)
        self._finishPortSetup()

def _finishPortSetup(self):
        """
        Finish setting up the serial port.

This is a separate method to facilitate testing.
        """
        flags, comstat = self._clearCommError()
        rc, self.read_buf = win32file.ReadFile(self._serial._port_handle,
                                               win32file.AllocateReadBuffer(1),
                                               self._overlappedRead)

def _clearCommError(self):
        return win32file.ClearCommError(self._serial._port_handle)

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)

def write(self, data):
        if data:
            if self.writeInProgress:
                self.outQueue.append(data)
            else:
                self.writeInProgress = 1
                win32file.WriteFile(self._serial._port_handle, data, self._overlappedWrite)

def serialWriteEvent(self):
        try:
            dataToWrite = self.outQueue.pop(0)
        except IndexError:
            self.writeInProgress = 0
            return
        else:
            win32file.WriteFile(self._serial._port_handle, dataToWrite, self._overlappedWrite)

def connectionLost(self, reason):
        """
        Called when the serial port disconnects.

Will call C{connectionLost} on the protocol that is handling the
        serial data.
        """
        self.reactor.removeEvent(self._overlappedRead.hEvent)
        self.reactor.removeEvent(self._overlappedWrite.hEvent)
        abstract.FileDescriptor.connectionLost(self, reason)
        self._serial.close()
        self.protocol.connectionLost(reason)

cmd: