Title
A Concurrency-Agnostic Protocol for Multi-Paradigm Concurrent Debugging Tools.
Abstract
Today's complex software systems combine high-level concurrency models. Each model is used to solve a specific set of problems. Unfortunately, debuggers support only the low-level notions of threads and shared memory, forcing developers to reason about these notions instead of the high-level concurrency models they chose. This paper proposes a concurrency-agnostic debugger protocol that decouples the debugger from the concurrency models employed by the target application. As a result, the underlying language runtime can define custom breakpoints, stepping operations, and execution events for each concurrency model it supports, and a debugger can expose them without having to be specifically adapted. We evaluated the generality of the protocol by applying it to SOMns, a Newspeak implementation, which supports a diversity of concurrency models including communicating sequential processes, communicating event loops, threads and locks, fork/join parallelism, and software transactional memory. We implemented 21 breakpoints and 20 stepping operations for these concurrency models. For none of these, the debugger needed to be changed. Furthermore, we visualize all concurrent interactions independently of a specific concurrency model. To show that tooling for a specific concurrency model is possible, we visualize actor turns and message sends separately.
Year
DOI
Venue
2017
10.1145/3170472.3133842
DLS
Keywords
DocType
Volume
Breakpoints, Concurrency, Debugging, Stepping, Tooling, Visualization
Conference
abs/1706.00363
Issue
ISSN
Citations 
11
0362-1340
4
PageRank 
References 
Authors
0.42
9
5
Name
Order
Citations
PageRank
Stefan Marr112421.54
Carmen Torres Lopez292.55
Dominik Aumayr342.11
Elisa Gonzalez Boix419525.83
Hanspeter Mössenböck578188.17