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Class: Fiddle::Pinned

Relationships & Source Files
Inherits: Object
Defined in: lib/fiddle/ffi_backend.rb,
ext/fiddle/pinned.c

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(object) ⇒ Pinned

[ GitHub ] 

  


# File 'lib/fiddle/ffi_backend.rb', line 580



def initialize(object)
  @object = object
end


  






  

  

    #new(object)  ⇒ Pinned   



  

    

Create a new pinned object reference.  The Pinned instance will prevent the GC from moving object.


  



  [ GitHub ]


  

  


# File 'ext/fiddle/pinned.c', line 52



static VALUE
initialize(VALUE self, VALUE ref)
{
    struct pinned_data *data;
    TypedData_Get_Struct(self, struct pinned_data, &pinned_data_type, data);
    RB_OBJ_WRITE(self, &data->ptr, ref);
    return self;
}


  







Instance Attribute Details



  

    #cleared?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/fiddle/ffi_backend.rb', line 595



def cleared?
  @object.nil?
end


  







Instance Method Details



  

    #clear  
  

  [ GitHub ]


  

  


# File 'lib/fiddle/ffi_backend.rb', line 591



def clear
  @object = nil
end


  








  

    #ref  
  

  [ GitHub ]


  

  


# File 'lib/fiddle/ffi_backend.rb', line 584



def ref
  if @object.nil?
    raise ClearedReferenceError, "`ref` called on a cleared object"
  end
  @object
end