# withFileStream(path:mode:options:permissions:_:) Calls the given closure with a file stream. ``` static func withFileStream(path: FilePath, mode: FileDescriptor.AccessMode, options: FileDescriptor.OpenOptions, permissions: FilePermissions, _ body: (ArchiveByteStream) throws -> E) throws -> E ``` ## Parameters `path` The file path. `mode` The file descriptor access mode. `options` The file descriptor options that specify behavior on opening a file. `permissions` The file permission bits that govern access to a file. `body` A closure with the archive byte stream passed as a parameter. ## Return Value The result of the closure. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)