On 2 Jun 2005, at 18:14, Alex Tweedly wrote:
Dave Beck wrote:
Thanks Chipp!!
But unfortunately putting the command in a repeat structure like that
doesn't seem to be helping. For some reason "get URL" returning
empty is
quite consistent behavior on at least one customer's machine.
Might it help to use the "load" command instead? Are they
implemented more
or less the same way internally? What about communicating through
sockets?
Is that more reliable? (I am currently using a .php script to
execute some
commands on the server and return a value.)
Not directly answering your question, but ....
on the machines which fail, can you try accessing the Web page (php
script) from a browser and verify that works.
I know you said
I know that the web page that I am
trying to load is NOT empty.
but I explicitly want to check for accessibility from the same
machine on which it fails via Rev.
After doing what Alex suggests, you should probably use
libUrlSetLogField to log the exchange between your app and the
server. The odd thing is that "the result" is returning empty. This
should only happen if the server sends a 200 response. If it is
getting a 200 response, I'd want to see whether there is a "Content-
length" header in the server's reponse, and if not, whether there is
a Transfer-encoding" header. If there is neither, libUrl will use a
"socketClosed" message to determine the end of the data transfer. In
this case, a premature close of the socket might produce what you are
seeing. (When those headers are present, which is normal, a
socketClosed message during a data transfer will produce an error in
the result.)
This is the only thing that I can think of to explain what you are
seeing, unless it's a bug in libUrl. In either case, getting the
server's response would help.
Cheers
Dave
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