Force downloading file to flush to disk?

[lee321987]

I have a script that periodically checks a downloading file to make sure it is still growing in size so I can be alerted if the download gets stalled.

Firefox is downloading the file.

Sometimes the file stops growing for a long time even though it is still successfully being downloaded.

If I copy the download and paste the copy then the download gets (flushed to disk?) and it's size is updated.

Does anyone know of a way I can force the download to get flushed to disk without copying it?

Edited September 25, 2022 by lee321987

[KaFu]

It's quite hard to meddle with other processes handle.

https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-flushfilebuffers

To flush all open files on a volume, call FlushFileBuffers with a handle to the volume. The caller must have administrative privileges. For more information, see Running with Special Privileges.

But I guess that will impair overall system performance.

Or as you wrote yourself, copy the file periodically and check the size of the copy.

[lee321987]

Just found out, this will force the file "foo.txt" to flush to disk:

FileRead("foo.txt", 1)

Edited October 26, 2022 by lee321987