Module: GPGME::Meta

Defined in:
lib/gpgme/ffi/meta.rb

Class Method Summary collapse

Class Method Details

.common_gpgme_edit(context, key, ruby_callback, ruby_handle, data, receiver) ⇒ Object 



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# File 'lib/gpgme/ffi/meta.rb', line 36

def self.common_gpgme_edit(context, key, ruby_callback, ruby_handle, data, receiver)
  callback = FFI::Function.new(:uint, [ :pointer, :uint, :string, :int ]) do |handle, status, args, fd|
    ruby_callback.call ruby_handle, status, args, fd

    GPGME.gpgme_err_make GPGME::GPG_ERR_SOURCE_USER_1, GPGME::GPG_ERR_NO_ERROR
  end

  context.edit_callback = callback

  receiver.call context.context_pointer, key.context_pointer, callback, FFI::Pointer::NULL,
              data.context_pointer
end

.define_ffi_forwarder(*functions) ⇒ Object 



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# File 'lib/gpgme/ffi/meta.rb', line 26

def self.define_ffi_forwarder(*functions)
  functions.each do |id|
    GPGME.define_singleton_method(id) do |*args|
      args = args.map! { |arg| Meta.ffize_value arg }

      GPGME::Library.send id, *args
    end
  end
end

.define_op_edit(*functions) ⇒ Object 



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# File 'lib/gpgme/ffi/meta.rb', line 49

def self.define_op_edit(*functions)
  functions.each do |function|
    GPGME.define_singleton_method(function) do |*args|
      common_gpgme_edit *args, GPGME::Library.method(function)
    end
  end
end

.ffize_value(arg) ⇒ Object 



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# File 'lib/gpgme/ffi/meta.rb', line 3

def self.ffize_value(arg)
  if arg.respond_to?(:context_pointer)
    arg.context_pointer

  elsif arg.kind_of?(String)
    FFI::MemoryPointer.from_string arg

  elsif arg.kind_of?(Array)
    buf = FFI::Buffer.new :pointer, arg.length + 1

    pointers = arg.map { |item| ffize_value item }
    pointers << FFI::Pointer::NULL
    buf.put_array_of_pointer 0, pointers

    buf

  elsif arg.nil?
    FFI::Pointer::NULL
  else
    arg
  end
end