Currently, only one FileSystemSyncAccessHandle may be open at a time per file, preventing an origin from reading the same file from multiple tabs easily. Conversely, multiple FileSystemWritableFileStream can be simultaneously open, letting multiple writers clobber each other.
Introducing new “create” modes for FileSystemSyncAccessHandle and FileSystemWritableFileStream allows opening either multiple readers/writers or an exclusive writer to a file entry, depending on the application's use case.
WebKittens
@annevk @szewai
Title of the spec
Multiple Readers and Writers in File System Access API
URL to the spec
https://fs.spec.whatwg.org/
URL to the spec's repository
https://github.com/whatwg/fs/
Issue Tracker URL
No response
Explainer URL
https://github.com/whatwg/fs/blob/main/proposals/MultipleReadersWriters.md
TAG Design Review URL
https://github.com/w3ctag/design-reviews/issues/845
Mozilla standards-positions issue URL
https://github.com/mozilla/standards-positions/issues/861
WebKit Bugzilla URL
No response
Radar URL
No response
Description
Currently, only one
FileSystemSyncAccessHandlemay be open at a time per file, preventing an origin from reading the same file from multiple tabs easily. Conversely, multipleFileSystemWritableFileStreamcan be simultaneously open, letting multiple writers clobber each other.Introducing new “create” modes for
FileSystemSyncAccessHandleandFileSystemWritableFileStreamallows opening either multiple readers/writers or an exclusive writer to a file entry, depending on the application's use case.