Protothreads
From Infogalactic: the planetary knowledge core
A protothread is a low-overhead mechanism for concurrent programming.
Protothreads function as stackless, lightweight threads providing a blocking context cheaply using minimal memory per protothread (on the order of single bytes).
Protothreads are non-preemptable. Therefore, a context switch can only take place on blocking operations. Protothreads are also stackless, which means global variables are needed for preserving variables across context switches.[1]
The protothread concept was developed by Adam Dunkels and Oliver Schmidt.[2]
More true name - Auto-State pseudo-Threads.
See also
References
- ↑ A. Dunkels, O. Schmidt, T. Voigt, and M. Ali, Protothreads: Simplifying Event-Driven Programming of Memory-Constrained Embedded Systems, Proc. ACM SenSys, Boulder, CO, USA, Nov 2006. (PDF, Presentation slides)
- ↑ Adam Dunkels' website
External links
- Protothread library in C used by Contiki
- Using Protothreads for Sensor Node Programming A PDF with some in-depth discussion about the use of Protothreads
- Protothread library requiring GCC, includes a thread scheduler modeled on the UNIX kernel (a simplified form of POSIX condition variables). This source base also includes a version that supports multiple CPU cores (processors).
- eigenclass.org performed a comparison of protothreads against POSIX threads, and found a 400x improvement in speed [1] Retrieved from Archive.org Oct 2014
- C++ Protothread
- Symbian C++ Protothread Implementation
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