createSyncAccessHandle method
@AvailableInWorkers("dedicated")
The createSyncAccessHandle() method of the
FileSystemFileHandle interface returns a Promise which resolves to a
FileSystemSyncAccessHandle object
that can be used to synchronously read from and write to a file. The
synchronous nature of this method brings performance advantages,
but it is only usable inside dedicated
Web Workers
for files within the
origin private file system.
Creating a FileSystemSyncAccessHandle takes an exclusive lock on the file associated with the file handle. This prevents the creation of further FileSystemSyncAccessHandles or FileSystemWritableFileStreams for the file until the existing access handle is closed.
Implementation
external JSPromise<FileSystemSyncAccessHandle> createSyncAccessHandle();