Protothreads: Simplifying event-driven programming of memory-constrained embedded systems (2006)
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| Venue: | In Proc. 2006 SenSys |
| Citations: | 50 - 7 self |
BibTeX
@INPROCEEDINGS{Dunkels06protothreads:simplifying,
author = {Adam Dunkels and Oliver Schmidt and Thiemo Voigt and Muneeb Ali},
title = {Protothreads: Simplifying event-driven programming of memory-constrained embedded systems},
booktitle = {In Proc. 2006 SenSys},
year = {2006},
pages = {29--42},
publisher = {ACM Press}
}
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Abstract
Event-driven programming is a popular model for writing programs for tiny embedded systems and sensor network nodes. While event-driven programming can keep the memory overhead down, it enforces a state machine programming style which makes many programs difficult to write, maintain, and debug. We present a novel programming abstraction called protothreads that makes it possible to write eventdriven programs in a thread-like style, with a memory overhead of only two bytes per protothread. We show that protothreads significantly reduce the complexity of a number of widely used programs previously written with event-driven state machines. For the examined programs the majority of the state machines could be entirely removed. In the other cases the number of states and transitions was drastically decreased. With protothreads the number of lines of code was reduced by one third. The execution time overhead of protothreads is on the order of a few processor cycles.
