ManageIQ/ffi-vix_disk_lib

module FFI
  module VixDiskLib
    class SafeCreateParams
      extend API
      extend FFI::Library

      attr_reader :create_params

      #
      # Read the contents of a CreateParams structure passed as an argument
      # into FFI memory which will be allocated to be used when calling out to
      # VixDiskLib
      #
      def initialize(in_create_parms)
        create_parms = FFI::MemoryPointer.new(VixDiskLib::CreateParams, 1, true)
        create_parms_start = create_parms
        disk_type = in_create_parms[:diskType]
        create_parms = create_parms_start + VixDiskLib::CreateParams.offset_of(:diskType)
        create_parms.write_int(DiskType[disk_type]) unless in_create_parms[:diskType].nil?
        adapter_type = in_create_parms[:adapterType]
        create_parms = create_parms_start + VixDiskLib::CreateParams.offset_of(:adapterType)
        create_parms.write_int(AdapterType[adapter_type]) unless in_create_parms[:adapterType].nil?
        create_parms = create_parms_start + VixDiskLib::CreateParams.offset_of(:hwVersion)
        create_parms.write_uint16(in_create_parms[:hwVersion]) unless in_create_parms[:hwVersion].nil?
        create_parms = create_parms_start + VixDiskLib::CreateParams.offset_of(:capacity)
        create_parms.write_uint64(in_create_parms[:capacity]) unless in_create_parms[:capacity].nil?
        @create_params = create_parms_start
      end
    end
  end
end # class SafeCreateParams