# Uses of Package
java.lang.foreign

Packages that use java.lang.foreign
Package
Description
java.lang.foreign
Provides low-level access to memory and functions outside the Java runtime.
java.nio.channels
Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
jdk.incubator.vector
Incubating Feature. Will be removed in a future release.

- Classes in java.lang.foreign used by java.lang.foreign
  Class
  Description
  AddressLayout
  A value layout used to model the address of some region of memory.
  Arena
  An arena controls the lifecycle of native memory segments, providing both flexible allocation and timely deallocation.
  FunctionDescriptor
  A function descriptor models the signature of a foreign function.
  GroupLayout
  A compound layout that is an aggregation of multiple, heterogeneous member layouts.
  Linker
  A linker provides access to foreign functions from Java code, and access to Java code from foreign functions.
  Linker.Option
  A linker option is used to provide additional parameters to a linkage request.
  MemoryLayout
  A memory layout describes the contents of a memory segment.
  MemoryLayout.PathElement
  An element in a layout path.
  MemorySegment
  A memory segment provides access to a contiguous region of memory.
  MemorySegment.Scope
  A scope models the lifetime of all the memory segments associated with it.
  PaddingLayout
  A padding layout.
  SegmentAllocator
  An object that may be used to allocate memory segments.
  SequenceLayout
  A compound layout that denotes a homogeneous repetition of a given element layout.
  StructLayout
  A group layout whose member layouts are laid out one after the other.
  SymbolLookup
  A symbol lookup retrieves the address of a symbol in one or more libraries.
  UnionLayout
  A group layout whose member layouts are laid out at the same starting offset.
  ValueLayout
  A layout that models values of basic data types.
  ValueLayout.OfBoolean
  A value layout whose carrier is `boolean.class`.
  ValueLayout.OfByte
  A value layout whose carrier is `byte.class`.
  ValueLayout.OfChar
  A value layout whose carrier is `char.class`.
  ValueLayout.OfDouble
  A value layout whose carrier is `double.class`.
  ValueLayout.OfFloat
  A value layout whose carrier is `float.class`.
  ValueLayout.OfInt
  A value layout whose carrier is `int.class`.
  ValueLayout.OfLong
  A value layout whose carrier is `long.class`.
  ValueLayout.OfShort
  A value layout whose carrier is `short.class`.
- Classes in java.lang.foreign used by java.nio.channels
  Class
  Description
  Arena
  An arena controls the lifecycle of native memory segments, providing both flexible allocation and timely deallocation.
  MemorySegment
  A memory segment provides access to a contiguous region of memory.
- Classes in java.lang.foreign used by jdk.incubator.vector
  Class
  Description
  MemorySegment
  A memory segment provides access to a contiguous region of memory.