Module: FFI

Defined in:
lib/ffi-value.rb

Defined Under Namespace

Classes: AbstractMemory

Constant Summary collapse

ValueStore = 
Hash.new { |h, k| h[k.object_id] = [k, 0] }
ValueStoreMutex = 
Mutex.new

Class Method Summary collapse

Class Method Details

.dec_ref(object) ⇒ Object 



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# File 'lib/ffi-value.rb', line 48

def self.dec_ref(object)
  refcount = nil
  ValueStoreMutex.synchronize {
    _, refcount = ValueStore[object.object_id]
    refcount -= 1
    if (refcount <= 0) then
      ValueStore.delete(object.object_id)
    else
      ValueStore[object.object_id] = [object, refcount]
    end
  }
  if refcount < 0
    raise ArgumentError.new("Object: #{object.object_id} was not previously referenced!")
  end
  refcount
end

.inc_ref(object) ⇒ Object 



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# File 'lib/ffi-value.rb', line 38

def self.inc_ref(object)
  refcount = nil
  ValueStoreMutex.synchronize {
    _, refcount = ValueStore[object.object_id]
    refcount += 1
    ValueStore[object.object_id] = [object, refcount]
  }
  refcount
end