June 2018
Intermediate to advanced
310 pages
6h 32m
English
Content preview from Hands-On Design Patterns with Kotlin
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Jobs
The result of running an asynchronous task is called a job. Much like the Thread object represents an actual OS thread, the job object represents an actual coroutine. A job has a simple lifecycle.
It can be either as follows:
- New: Created, but not started yet.
- Active: Just created by launch() function, for example. This is the default state.
- Completed: Everything went well.
- Canceled: Something went wrong.
There are two more states relevant to jobs that have child jobs:
- Completing: Waiting to finish executing children before completing
- Canceling: Waiting to finish executing children before canceling
If you want to understand more about parent and child jobs, just jump to the Parent jobs section in this chapter.
Job also has some useful ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.