A pending asynchronous read, returned by FileEntry.readBytesAsync.
The out bytes must not be accessed until the read is done.
Variables
priority:Float
Requests with higher priority are read first. Can be modified while the request is pending.
Methods
cancel():Void
Cancel the read : the onDone callback will not be called.
If the read was already in progress, the out bytes might still be written until it completes.