Fibers in Asynchronous Input and Output
Explore how fibers manage state and execution flow to simplify asynchronous input and output tasks in D programming. Understand how fibers allow concurrent user sign-on processes without blocking, improving responsiveness and maintaining flow state automatically for efficient concurrency handling.
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Simplifying asynchronous input and output tasks
The call stack of a fiber can simplify asynchronous input and output tasks as well. As an example, let’s imagine a system where users sign on to a service by connecting to a server and providing their name, email, and age, in that order. This would be similar to the sign-on user flow of a website. To keep the example simple, instead of implementing an actual web service, let’s simulate user interactions using data entered on the command line. Let’s use the following simple sign-on protocol, where input data is highlighted:
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hi: A user connects and a flow id is generated.
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id data: The user of flow that corresponds to id enters the next expected data. For example, if the expected data for flow 42 is Alice, then the command for ...