Iron: Managing Obligations in Higher-Order Concurrent Separation Logic
Precise management of resources and the obligations they impose, such as the need to dispose of memory, close locks, and release file handles, is hard—especially in the presence of concurrency, when some resources are shared, and different threads operate on them concurrently. We present Iron, a novel higher-order concurrent separation logic that allows for precise reasoning about resources that are transferable among dynamically allocated threads. In particular, Iron can be used to show the correctness of challenging examples, where the reclamation of memory is delegated to a forked-off thread. We show soundness of Iron by means of a model of Iron, defined on top of the Iris base logic, and we use this model to prove that memory resources are accounted for precisely and not leaked. We have formalized all of the developments in the Coq proof assistant.
| Slides for Talk (slides.pdf) | 164KiB |
Thu 17 JanDisplayed time zone: Belfast change
10:36 - 12:04 | Separation Logic and Memory SemanticsResearch Papers at Sala II Chair(s): Ilya Sergey Yale-NUS College and National University of Singapore | ||
10:36 22mTalk | Iron: Managing Obligations in Higher-Order Concurrent Separation Logic Research Papers Aleš Bizjak Aarhus University, Daniel Gratzer , Robbert Krebbers Delft University of Technology, Lars Birkedal Aarhus University Link to publication DOI Media Attached File Attached | ||
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11:20 22mTalk | ISA Semantics for ARMv8-A, RISC-V, and CHERI-MIPS Research Papers Alasdair Armstrong University of Cambridge, Thomas Bauereiss University of Cambridge, Brian Campbell University of Edinburgh, Alastair Reid Arm Ltd, Kathryn E. Gray University of Cambridge, Robert M. Norton University of Cambridge, Prashanth Mundkur SRI International, Mark Wassell University of Cambridge, Jon French University of Cambridge, Christopher Pulte University of Cambridge, Shaked Flur University of Cambridge, Ian Stark The University of Edinburgh, Neel Krishnaswami Computer Laboratory, University of Cambridge, Peter Sewell University of Cambridge Link to publication DOI Media Attached File Attached | ||
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