Module: HDF5::Native

Defined in:
lib/hdf5/native.rb

Overview

Internal helpers for native return values and resource cleanup.

Class Method Summary collapse

Class Method Details

.check(value, message) ⇒ Object

Raises:



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# File 'lib/hdf5/native.rb', line 8

def check(value, message)
  raise NativeError, message if value.negative?

  value
end

.close(*handles) ⇒ Object

Attempt every close, while preserving an exception already in flight.



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# File 'lib/hdf5/native.rb', line 29

def close(*handles)
  active_error = $ERROR_INFO
  close_error = nil
  handles.each do |function, id|
    next unless id && id >= 0

    begin
      check(HDF5::FFI.public_send(function, id), "Failed to close HDF5 resource (#{function})")
    rescue StandardError => error
      close_error ||= error
    end
  end
  raise close_error if close_error && active_error.nil?
end

.close_object(object) ⇒ Object 



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# File 'lib/hdf5/native.rb', line 44

def close_object(object)
  active_error = $ERROR_INFO
  object&.close
rescue StandardError
  raise if active_error.nil?
end

.datatype_class(type_id) ⇒ Object

Raises:



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# File 'lib/hdf5/native.rb', line 14

def datatype_class(type_id)
  value = HDF5::FFI.H5Tget_class(type_id)
  raise NativeError, 'Failed to get datatype class' if value == :H5T_NO_CLASS

  value
end

.extent_type(space_id) ⇒ Object

Raises:



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# File 'lib/hdf5/native.rb', line 21

def extent_type(space_id)
  value = HDF5::FFI.H5Sget_simple_extent_type(space_id)
  raise NativeError, 'Failed to get dataspace type' if value == :H5S_NO_CLASS

  value
end