Python QLocalSocket.state方法代码示例

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
def _has_legacy_server(name):
    """Check if there is a legacy server.

    Args:
        name: The name to try to connect to.

    Return:
        True if there is a server with the given name, False otherwise.
    """
    socket = QLocalSocket()
    log.ipc.debug("Trying to connect to {}".format(name))
    socket.connectToServer(name)

    err = socket.error()

    if err != QLocalSocket.UnknownSocketError:
        log.ipc.debug("Socket error: {} ({})".format(socket.errorString(), err))

    os_x_fail = (
        sys.platform == "darwin" and socket.errorString() == "QLocalSocket::connectToServer: " "Unknown error 38"
    )

    if err not in [QLocalSocket.ServerNotFoundError, QLocalSocket.ConnectionRefusedError] and not os_x_fail:
        return True

    socket.disconnectFromServer()
    if socket.state() != QLocalSocket.UnconnectedState:
        socket.waitForDisconnected(CONNECT_TIMEOUT)
    return False

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
def send_to_running_instance(socketname, command, target_arg, *,
                             legacy_name=None, socket=None):
    """Try to send a commandline to a running instance.

    Blocks for CONNECT_TIMEOUT ms.

    Args:
        socketname: The name which should be used for the socket.
        command: The command to send to the running instance.
        target_arg: --target command line argument
        socket: The socket to read data from, or None.
        legacy_name: The legacy name to first try to connect to.

    Return:
        True if connecting was successful, False if no connection was made.
    """
    if socket is None:
        socket = QLocalSocket()

    if (legacy_name is not None and
            _has_legacy_server(legacy_name)):
        name_to_use = legacy_name
    else:
        name_to_use = socketname

    log.ipc.debug("Connecting to {}".format(name_to_use))
    socket.connectToServer(name_to_use)

    connected = socket.waitForConnected(CONNECT_TIMEOUT)
    if connected:
        log.ipc.info("Opening in existing instance")
        json_data = {'args': command, 'target_arg': target_arg,
                     'version': qutebrowser.__version__,
                     'protocol_version': PROTOCOL_VERSION}
        try:
            cwd = os.getcwd()
        except OSError:
            pass
        else:
            json_data['cwd'] = cwd
        line = json.dumps(json_data) + '\n'
        data = line.encode('utf-8')
        log.ipc.debug("Writing: {}".format(data))
        socket.writeData(data)
        socket.waitForBytesWritten(WRITE_TIMEOUT)
        if socket.error() != QLocalSocket.UnknownSocketError:
            raise SocketError("writing to running instance", socket)
        else:
            socket.disconnectFromServer()
            if socket.state() != QLocalSocket.UnconnectedState:
                socket.waitForDisconnected(CONNECT_TIMEOUT)
            return True
    else:
        if socket.error() not in (QLocalSocket.ConnectionRefusedError,
                                  QLocalSocket.ServerNotFoundError):
            raise SocketError("connecting to running instance", socket)
        else:
            log.ipc.debug("No existing instance present (error {})".format(
                socket.error()))
            return False

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
    def _send_to_running_instance(self, payload: bytes, pid: int) -> None:
        from PyQt5.QtCore import QByteArray
        from PyQt5.QtNetwork import QLocalSocket

        named_pipe = f"{BUNDLE_IDENTIFIER}.protocol.{pid}"
        log.debug(
            f"Opening a local socket to the running instance on {named_pipe} "
            f"(payload={self.redact_payload(payload)})"
        )
        client = QLocalSocket()
        try:
            client.connectToServer(named_pipe)

            if not client.waitForConnected():
                log.error(f"Unable to open client socket: {client.errorString()}")
                return

            client.write(QByteArray(payload))
            client.waitForBytesWritten()
            client.disconnectFromServer()
            if client.state() == QLocalSocket.ConnectedState:
                client.waitForDisconnected()
        finally:
            del client
        log.debug("Successfully closed client socket")

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
def is_running():
    local_socket = QLocalSocket()
    local_socket.connectToServer("ninja_ide")
    if local_socket.state():
        # It's running
        result = (True, local_socket)
    else:
        # It's not running
        result = (False, local_socket)
    return result

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
    def startClient(self) -> bool:
        Logger.log("i", "Checking for the presence of an ready running Cura instance.")
        single_instance_socket = QLocalSocket(self._application)
        Logger.log("d", "Full single instance server name: %s", single_instance_socket.fullServerName())
        single_instance_socket.connectToServer("ultimaker-cura")
        single_instance_socket.waitForConnected(msecs = 3000)  # wait for 3 seconds

        if single_instance_socket.state() != QLocalSocket.ConnectedState:
            return False

        # We only send the files that need to be opened.
        if not self._files_to_open:
            Logger.log("i", "No file need to be opened, do nothing.")
            return True

        if single_instance_socket.state() == QLocalSocket.ConnectedState:
            Logger.log("i", "Connection has been made to the single-instance Cura socket.")

            # Protocol is one line of JSON terminated with a carriage return.
            # "command" field is required and holds the name of the command to execute.
            # Other fields depend on the command.

            payload = {"command": "clear-all"}
            single_instance_socket.write(bytes(json.dumps(payload) + "\n", encoding = "ascii"))

            payload = {"command": "focus"}
            single_instance_socket.write(bytes(json.dumps(payload) + "\n", encoding = "ascii"))

            for filename in self._files_to_open:
                payload = {"command": "open", "filePath": os.path.abspath(filename)}
                single_instance_socket.write(bytes(json.dumps(payload) + "\n", encoding = "ascii"))

            payload = {"command": "close-connection"}
            single_instance_socket.write(bytes(json.dumps(payload) + "\n", encoding = "ascii"))

            single_instance_socket.flush()
            single_instance_socket.waitForDisconnected()
        return True

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
def send_to_running_instance(socketname, command):
    """Try to send a commandline to a running instance.

    Blocks for CONNECT_TIMEOUT ms.

    Args:
        socketname: The name which should be used for the socket.
        command: The command to send to the running instance.

    Return:
        True if connecting was successful, False if no connection was made.
    """
    socket = QLocalSocket()
    log.ipc.debug("Connecting to {}".format(socketname))
    socket.connectToServer(socketname)
    connected = socket.waitForConnected(100)
    if connected:
        log.ipc.info("Opening in existing instance")
        json_data = {'args': command}
        try:
            cwd = os.getcwd()
        except OSError:
            pass
        else:
            json_data['cwd'] = cwd
        line = json.dumps(json_data) + '\n'
        data = line.encode('utf-8')
        log.ipc.debug("Writing: {}".format(data))
        socket.writeData(data)
        socket.waitForBytesWritten(WRITE_TIMEOUT)
        if socket.error() != QLocalSocket.UnknownSocketError:
            _socket_error("writing to running instance", socket)
        else:
            socket.disconnectFromServer()
            if socket.state() != QLocalSocket.UnconnectedState:
                socket.waitForDisconnected(100)
            return True
    else:
        if socket.error() not in (QLocalSocket.ConnectionRefusedError,
                                  QLocalSocket.ServerNotFoundError):
            _socket_error("connecting to running instance", socket)
        else:
            log.ipc.debug("No existing instance present (error {})".format(
                socket.error()))
            return False

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]
def qlocalsocket(qapp):
    socket = QLocalSocket()
    yield socket
    socket.disconnectFromServer()
    if socket.state() != QLocalSocket.UnconnectedState:
        socket.waitForDisconnected(1000)

# 需要导入模块: from PyQt5.QtNetwork import QLocalSocket [as 别名]
# 或者: from PyQt5.QtNetwork.QLocalSocket import state [as 别名]

#.........这里部分代码省略.........
      
   def itemClicked(self):
      sender = self.sender()
      if sender.item.folder:
         self.setCurrentItem(sender.item)
         self.refresh(False)
      else:
         flags = ['f', 'F', 'u', 'U', 'd', 'D', 'n', 'N', 'i', 'k', 'v', 'm']
         command = sender.item.command
         for i in flags:
            command = command.replace('%' + i, '')
         # %c needs a proper value in some cases
         command = command.replace('%c', '"%s"' % sender.item.name)
         working = sender.item.working
         if not os.path.isdir(working):
            working = None
            
         # Need to redirect stdout and stderr so if the process writes something it won't fail
         with open(os.path.devnull, 'w') as devnull:
            Popen(command + '&', stdout=devnull, stderr=devnull, shell=True, cwd=working)
         self.hideOrClose()
         
         
   def backClicked(self):
      if self.currentItem:
         self.setCurrentItem(self.currentItem.parent)
         self.refresh(False)
         
         
   def setCurrentItem(self, item):
      self.currentItem = item
      if item != None:
         self.currentLabel.setText(item.name)
         if item.parent != None:
            self.backButton.setText(item.parent.name)
         else:
            self.backButton.setText('Favorites')
      else:
         self.currentLabel.setText('')
         self.backButton.setText('Favorites')
         
         
   def settingsClicked(self):
      form = SettingsForm(self)
      form.quitCheck.setChecked(self.settings['quit'])
      theme = self.settings.get('iconTheme')
      if theme:
         form.themeCombo.setCurrentIndex(form.themeCombo.findText(theme))
      
      self.holdOpen = True
      form.exec_()
      self.checkMouse()
      self.holdOpen = False
      
      if form.accepted:
         self.settings['quit'] = form.quitCheck.isChecked()
      
      
   def firstRun(self):
      QMessageBox.information(self, 'First Time?', 'Your menu is currently empty.  It is recommended that you import an existing menu file.')
      self.settingsClicked()
      
      
   def connectToRunning(self):
      self.socket = QLocalSocket()
      self.socket.connectToServer('nemuSocket')
      self.socket.waitForConnected(1000)
      
      if self.socket.state() == QLocalSocket.ConnectedState:
         print 'Server found'
         if self.socket.waitForReadyRead(3000):
            line = self.socket.readLine()
            print line
         else:
            print self.socket.errorString()
         sys.exit()
      else:
         print 'No server running'
      
      
   def handleConnection(self):
      import datetime
      print "Got connection", datetime.datetime.now()
      
      connection = self.server.nextPendingConnection()
      connection.write('connected')
      del connection
      
      self.setCurrentItem(None)
      self.filterBox.setText('')
      self.refresh(False)
      self.show()
      print "Showed", datetime.datetime.now()
      return
      
      
   # Call periodically to keep data resident in memory (hopefully)
   def keepalive(self):
      if self.isHidden():
         self.refresh(False)