ffi-bit_masks

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Description

FFI plugin which adds support for bitmasked types (or flags) to FFI.

Features

• Can map a Hash of flags to their bitmask value.
• Can map an Integer bitmask to a Hash of flags.

Examples

require 'ffi/bit_masks'

module MyLibrary
  extend FFI::Library

  ffi_lib 'foo'

  bit_mask :flags, {foo: 0x1, bar: 0x2, baz: 0x4}

  attach_function :my_func, [:pointer, :size_t, :flags], :int
end

Requirements

• ffi ~> 1.0

Install

$ gem install ffi-bit_masks

Copyright

Copyright (c) 2012-2013 Hal Brodigan

See {file:LICENSE.txt} for details.