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DOI: 10.4230/DagSemProc.09301.3
URN: urn:nbn:de:0030-drops-24379
URL: https://drops.dagstuhl.de/opus/volltexte/2010/2437/
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Clarke, David ; Wrigstad, Tobias ; Ostlund, Johan ; Johnsen, Einar Broch

Minimal Ownership for Active Objects

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09301.ClarkeDavid.Paper.2437.pdf (0.5 MB)


Abstract

Active objects offer a structured approach to concurrency, encapsulating both unshared state and a thread of control. For efficient data transfer, data should be passed by reference whenever possible, but this introduces aliasing and undermines the validity of the active objects. This paper proposes a minimal variant of ownership types that preserves the required race freedom invariant yet enables data transfer by reference between active objects (that is, without copying) in many cases, and a cheap clone operation where copying is necessary. Our approach is general and should be adaptable to several existing active object systems.


BibTeX - Entry

@InProceedings{clarke_et_al:DagSemProc.09301.3,
  author =	{Clarke, David and Wrigstad, Tobias and Ostlund, Johan and Johnsen, Einar Broch},
  title =	{{Minimal Ownership for Active Objects}},
  booktitle =	{Typing, Analysis and Verification of Heap-Manipulating Programs},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{9301},
  editor =	{Peter O'Hearn and Arnd Poetzsch-Heffter and Mooly Sagiv},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2010/2437},
  URN =		{urn:nbn:de:0030-drops-24379},
  doi =		{10.4230/DagSemProc.09301.3},
  annote =	{Keywords: Ownership, concurrency, uniqueness, active objects}
}

Keywords: Ownership, concurrency, uniqueness, active objects
Collection: 09301 - Typing, Analysis and Verification of Heap-Manipulating Programs
Issue Date: 2010
Date of publication: 24.02.2010


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