Contents

subscript(_:)

Get or set a value in this dictionary as a file descriptor.

Declaration

subscript(key: String) -> FileDescriptor? { get set }

Parameters

  • key:

    The key under which to get or set the file descriptor.

Return Value

A file descriptor value or nil if no such value was found.

Overview

A file descriptor passed in will be duplicated so the caller must still close theirs. A returned file descriptor is owned by the caller so it must be closed.