Coroutines

Coroutines

A coroutine is a type of routine that can pause its execution and resume from where it left off, without needing to return control to the calling program unit. It is often used to encapsulate asynchronous tasks, allowing them to pause while waiting for their result and letting other routines run in the meantime. Cooperative threads are similar to coroutines, as they also allow for non-preemptive multitasking, but are typically not scheduled by the operating system.From: Dictionary of Computer Science, Engineering, and Technology [2017], A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation [2023], Multi-Core Embedded Systems [2019]

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Published in Phillip A. Laplante, Dictionary of Computer Science, Engineering, and Technology, 2017

Phillip A. Laplante

coroutine (1) a routine that begins execution at the point it was last suspended, and that is not required to return control to the calling program unit. The use of multiple coroutines was historically called cooperative multitasking.

A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation

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Published in International Journal of Production Research, 2023

Jessica Ulmer, Sebastian Braun, Chi-Tsun Cheng, Steve Dowey, Jörg Wollert

The MWS hardware control distributes instructions from the evaluation system and user actions detected by sensor systems (Figure 2). For each component, a communication protocol is established, and subscription topics are defined. For instance, the pick-by-light system communicates via the serial interface and listens to grab instructions. Coroutines using the asyncio library in Python are selected to run the different applications simultaneously (Figure 8). The coroutines encapsulate asynchronous tasks, which are allowed to pause while waiting for their result and let other routines run in the meantime. This way, concurrent execution is facilitated (Solomon 2020). The sensor coroutines, such as the PickDetectionCoroutine, evaluate sensor data and inform the publisher of user interactions. Instructions from the evaluation system are transmitted to the EvaluationCoroutine via a TCP socket and transferred to the publisher. The publisher matches the information to the appropriate topic and publishes it to the specified subscribers. In case of hardware changes, coroutines can be enabled or disabled without influencing the system's functionality.

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A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation