Python Interest.setCanBePrefix方法代码示例

# 需要导入模块: from pyndn.interest import Interest [as 别名]
# 或者: from pyndn.interest.Interest import setCanBePrefix [as 别名]
    def _nfdRegisterPrefix(
      self, registeredPrefixId, prefix, onInterest, onRegisterFailed,
      onRegisterSuccess, registrationOptions, commandKeyChain,
      commandCertificateName, face):
        """
        Do the work of registerPrefix to register with NFD.

        :param int registeredPrefixId: The getNextEntryId() which registerPrefix
          got so it could return it to the caller. If this is 0, then don't add
          to _registeredPrefixTable (assuming it has already been done).
        """
        if commandKeyChain == None:
            raise RuntimeError(
              "registerPrefix: The command KeyChain has not been set. You must call setCommandSigningInfo.")
        if commandCertificateName.size() == 0:
            raise RuntimeError(
              "registerPrefix: The command certificate name has not been set. You must call setCommandSigningInfo.")

        controlParameters = ControlParameters()
        controlParameters.setName(prefix)
        controlParameters.setForwardingFlags(registrationOptions)
        if (registrationOptions.getOrigin() != None and
              registrationOptions.getOrigin() >= 0):
            controlParameters.setOrigin(registrationOptions.getOrigin())
            # Remove the origin value from the flags since it is not used to encode.
            controlParameters.getForwardingFlags().setOrigin(None)

        commandInterest = Interest()
        commandInterest.setCanBePrefix(True)
        if self.isLocal():
            commandInterest.setName(Name("/localhost/nfd/rib/register"))
            # The interest is answered by the local host, so set a short timeout.
            commandInterest.setInterestLifetimeMilliseconds(2000.0)
        else:
            commandInterest.setName(Name("/localhop/nfd/rib/register"))
            # The host is remote, so set a longer timeout.
            commandInterest.setInterestLifetimeMilliseconds(4000.0)
        # NFD only accepts TlvWireFormat packets.
        commandInterest.getName().append(controlParameters.wireEncode(TlvWireFormat.get()))
        self.makeCommandInterest(
          commandInterest, commandKeyChain, commandCertificateName,
          TlvWireFormat.get())

        # Send the registration interest.
        response = Node._RegisterResponse(
          prefix, onRegisterFailed, onRegisterSuccess, registeredPrefixId, self,
          onInterest, face)
        self.expressInterest(
          self.getNextEntryId(), commandInterest, response.onData,
          response.onTimeout, None, TlvWireFormat.get(), face)