Module: CZMQ::FFI::Wrapper

Included in:
Zmsg, Zsock
Defined in:
lib/cztop/ffi.rb

Overview

Base module for common wrapper logic.

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/cztop/ffi.rb', line 167

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#__ptr_give_ref ⇒ Object

Give away ownership of the pointer (e.g. for zmsg_send which takes a pointer-to-pointer and nullifies it).

Raises:



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# File 'lib/cztop/ffi.rb', line 191

def __ptr_give_ref
  raise DestroyedError if @moved
  ptr_ptr = ::FFI::MemoryPointer.new(:pointer)
  ptr_ptr.write_pointer(@ptr)
  @moved = true
  ObjectSpace.undefine_finalizer(self)
  ptr_ptr
end

#null? ⇒ Boolean

Returns:



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# File 'lib/cztop/ffi.rb', line 185

def null?
  @ptr.null? || @moved
end

#to_ptr ⇒ Object

Raises:



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# File 'lib/cztop/ffi.rb', line 180

def to_ptr
  raise DestroyedError if @moved
  @ptr
end