#--
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#++

module Qpid::Proton::Util

  # @private
  module Handler

    def chandler(handler, on_error)
      return nil if handler.nil?

      if handler.instance_of?(Qpid::Proton::Handler::WrappedHandler)
        impl = handler.impl
        Cproton.pn_incref(impl)
        return impl
      else
        cadaptor = Qpid::Proton::Handler::CAdaptor.new(handler, on_error)
        rbhandler = Cproton.pn_rbhandler(cadaptor)
        return rbhandler
      end
    end

  end

end