Alien is a library for type safe direct memory access using structures introduced in JDK 22 Foreign Function & Memory API.
Region.fresh.shared { implicit region =>
val layout = ("a" := Values.Long) >>:
("seq" := Values.Long * 123) >>:
("b" := Values.Char)
val ptr = layout / "seq" / % / $
val memory = Memory.allocate(layout)
ptr.set(memory, 0, 42)
}
Add alien as a dependency to your build.sbt:
libraryDependencies += "com.yandex.classifieds" %% "alien-memory" % "0.1.0"Alien can be used with
- Scala 2.13
- Java 21 or Java 22
At the time of the release of Java 21, the Foreign Function & Memory API was in the preview stage, so it is recommended to use Java 22 with a final version of FFM.
More detailed docs can be found here.