Kotlin coroutines: design and implementation

Elizarov, Roman; Belyaev, Mikhail; Akhin, Marat; Usmanov, Ilmir

doi:10.1145/3486607.3486751

Cited by 12 publications

(4 citation statements)

References 37 publications

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“…The majority of coroutines-related features are implemented directly in Kotlin as part of the standard library. In the compilation phase, each suspending function is transformed into a Continuation-Passing Style function (CPS) involving an additional parameter of type Continuation [13]. Due to the limitations of the JVM, suspending functions are implemented as state machines and Continuation objects are responsible for maintaining the state of local variables during the suspension.…”

Section: Kotlin Coroutines and Channelsmentioning

confidence: 99%

Real-time Energy-efficient Sensor Libraries for Wearable Devices

Calisti,

Lattanzi

2023

Preprint

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The growing popularity of wearable technology has led to a surge in smartwatch usage among the general public. These devices offer a range of features, including internet connectivity, fitness tracking, and real-time notifications, making them valuable tools for staying connected to the online world while remaining engaged in real-world activities. Smartwatches have become powerful platforms for Human Activity Recognition (HAR) applications thanks to the increasing computational power and the presence of a wide array of sensors, such as accelerometers, gyroscopes, heart rate, and step counters. Efficient real-time data collection from internal sensors is a crucial requirement for HAR applications on wearable devices due to their constraints in battery size and duration. In this paper, we introduce the implementation of three energy-efficient user-level libraries developed for real-time data collection from inertial sensors using native Wear OS APIs and different techniques: Thread, Flow, and Channel. Experiments were conducted on a commercially available Oppo smartwatch comparing them in terms of code size, memory utilization, and energy consumption. The characterization results demonstrate empirically that the solution is lightweight and adaptable, making it suitable for development on wearable devices without significant impact on battery life and system performance.

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Section: Kotlin Coroutines and Channelsmentioning

confidence: 99%

Real-time Energy-efficient Sensor Libraries for Wearable Devices

Calisti,

Lattanzi

2023

Preprint

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“…They are available in most mainstream languages and recommended for asynchronous operations. Meyers [13] gives a very good explanation of the futures mechanism in C++11/14, while [5] discusses various future related issues and their approach in Kotlin.…”

Section: 1mentioning

confidence: 99%

On Composing Asynchronous Operations

Lupșa,

Lupșa

2023

Studia UBB Informatica

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Asynchronous operations are very useful for actions that wait for an external event or work for a long time, to avoid blocking the thread that launches them. Unfortunately, whether they report their termination via callbacks or via completing a future, composing several asynchronous calls is difficult and error prone. The continuations mechanism (provided, for example, in C# Task Parallel Library via ContinueWith()) offers limited support for scheduling a sequence of operations. In this paper we try to improve this mechanism with better support for sequencing operations and exceptions, and with support for conditionals and loops, while covering the specifics of a C++ implementation. The most recent version of our source code is at [14]. Keywords and phrases: asynchronous programming.

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“…There are 3 important classification criteria for coroutine support in a coroutine implementation [13], [10]:…”

Section: What Is a Coroutinementioning

confidence: 99%

“…They also discuss Exception Handling, but this is more of CPS than coroutines. [10] also present an implementation approach to asynchronous programming and generator based on coroutines.…”

Section: Introductionmentioning

confidence: 99%