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Room 4 - Expert

Thursday June 13th, 15:15-16:00

Asynchronous streams in direct style with and without macros

About this Session

Scala-async is a macro for simplifying the use of futures. This talk presents an extension of scala-async which additionally enables writing producers and consumers of asynchronous streams using familiar straight-line, blocking-style code while using efficient non-blocking, event-based concurrency under the hood. Building on the Reactive Streams standard enables integrating with many stream-based Scala libraries and frameworks. The second part of the talk shows how OpenJDK Project Loom fibers can be used to implement extended scala-async without the use of Scala's deprecated macro system.

Required Knowledge

Attendees should have some experience with concurrent programming in Scala, for example using futures or actors.

Speaker(s)

Philipp Haller
@philippkhaller

Philipp Haller is an associate professor in the department of computer science at KTH Royal Institute of Technology in Stockholm, the leading technical university in Sweden. Philipp is co-author of Scala's async/await extension for asynchronous programming, and one of the lead designers of Scala's futures library. Main author of the book "Actors in Scala," he created Scala's first widely-used actor library. Previously, Philipp held positions at Typesafe, Stanford University, and EPFL.

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