#71 ns_form conn delays 30 seconds

[Jim Wilcoxson]

With 3.4, [ns_conn form] has a 30 second delay
(exactly, every time) when used with a request
submitted as multipart/form-data (file upload).

2.3.3 doesn't have this delay, nor does [ns_getform]
in 3.4

[Jim Wilcoxson]

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I should have mentioned that to duplicate this, you use
ns_getform first on the connection, then use ns_conn form.
After looking at the code, my theory is that ns_getform
doesn't set the state variables that [ns_conn form] is
looking for, so the call to [ns_conn form] calls
Ns_ConnGetQuery and eventually tries to read the POST data
from the connection. But it has already been read by
ns_getform, so after a 30 second socket timeout, it
returns.

Suggested fixes might be to put ns_getform in conn.c or put
helper functions in conn.c that ns_getform can call to set
state vars.

[Jim Davidson]

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New connection I/O model in 4.0 isn't subject to this
read-ahead problem. Would be difficult to work around
problem in 3.x.