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Learning Concurrency in Kotlin

You're reading from   Learning Concurrency in Kotlin Build highly efficient and scalable applications

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788627160
Length 266 pages
Edition 1st Edition
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Author (1):
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Miguel Angel Castiblanco Torres Miguel Angel Castiblanco Torres
Author Profile Icon Miguel Angel Castiblanco Torres
Miguel Angel Castiblanco Torres
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Toc

Table of Contents (11) Chapters Close

Preface 1. Hello, Concurrent World! 2. Coroutines in Action FREE CHAPTER 3. Life Cycle and Error Handling 4. Suspending Functions and the Coroutine Context 5. Iterators, Sequences, and Producers 6. Channels - Share Memory by Communicating 7. Thread Confinement, Actors, and Mutexes 8. Testing and Debugging Concurrent Code 9. The Internals of Concurrency in Kotlin 10. Other Books You May Enjoy

Summary

This chapter contained information that is vital when working with coroutines. Knowing about the different states of a job and how to calculate the current one is important in order to monitor them. Let's recap the topics that were covered in this chapter:

  • Job is used for background tasks that don't return anything.
  • Deferred is used when the background operation returns something that we want to receive.
  • A job can have many states: New, Active, Canceling, Cancelled, and Completed.
  • The isActive, isCancelled, and isCompleted properties can be used to determine the current state of a job.
  • Deferred extends job to add the possibility to return something.
  • The possible states of deferred are the same as that of a job.
  • A job's state can only move forward; it can't be returned to a previous state.
  • A final state is one of the states from which a job can&apos...
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