[Twisted-Python] Large Transfers
glyph at twistedmatrix.com
Sat May 10 11:34:59 EDT 2003
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On Saturday, May 10, 2003, at 10:20 AM, Uwe C. Schroeder wrote:
> The pager makes it hard to give the user some response while
You have got this exactly backwards. If you want to implement
upload/download notification of some sort (let's say, a progress bar)
then you are going to need something that looks like a pager, and if
one didn't exist you would have to write it yourself.
Now, for a progress bar, you will need to write your own pager, since
you'll need to hook into the 'data received' notifications that you
get; but this could be a trivial subclass of CallbackPageCollector.
getAllPages won't work for you at that point, but it is only 3 lines of
code; not a terrible burden to rewrite.
> The UI gets stuck,
Unless you have an intentionally broken UI, this is not true. The
event loop will be running and data-received callbacks will be
happening, so nothing is "stuck".
> or at least appears to be since nothing is happening.
No visible indication of progress, you mean. What would be happening
if PB *weren't* paging?
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