Tom Jackson schrieb:
John,
I'm just going to venture a guess. I hope that Jim D. or someone else
more familiar with the internals will set me straight.
The problem with upload progress monitoring is that uploads are
finished before a conn thread is allocated.
Uploads are done in the driver thread, or a worker thread before the
conn thread is given control.
Tom,
the typical meachnism for upload progress bars is that separate (ajax)
queries
are used to query the state of an running upload, which is identified by
some
unique ID (e.g. X-Progress-ID in
http://wiki.nginx.org/NginxHttpUploadProgressModule,
or some other heuristics. e.g. based on URL and peer addr).
So, one needs just a thread-safe introspection meachnism, which
checks in the spooler the state (such as "ns_upload_stats"
in naviserver) and returns it back. The spooler hast just to update
these statistics when it recieves data.
-gustaf neumann
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