[Klone-users] Klone using server push
Andre Puschmann
ap4lists at sp-ss.de
Tue Jul 8 13:32:11 EDT 2008
Hi all,
I am trying to use a server push technique to avoid client side polling
for data.
I am not sure if I am doing something wrong. For some reason Klone sends
all 4 "packets" in one single bunch. Well, at least wireshark reports this!
Seems like io_flush doesn't work?!
Here is my sample code:
<code>
<%!
#include <stdio.h>
%><%
int i;
response_set_content_type(response,
"multipart/x-mixed-replace;boundary=---ThisRandomString---");
response_set_field(response, "Pragma:", "no-cache");
response_set_field(response, "Cache-Control", "no-cache, no-store,
must-revalidate");
response_set_field(response, "Expires:", "Mon, 26 Jul 1997 05:00:00
GMT");
io_printf(out, "---ThisRandomString---\n");
for (i = 1; i < 5; i++)
{
io_printf(out, "Content-type: text/html\n\n");
io_printf(out, "<h2>part %d</h2>\n", i);
io_printf(out, "---ThisRandomString---\n");
io_flush(out);
sleep(1);
}
%>
</code>
Using the built-in cgi works for a shell script. Also here's the code
for that one:
<code>
#!/bin/sh
echo "HTTP/1.0 200"
echo "Content-type:
multipart/x-mixed-replace;boundary=---ThisRandomString---"
echo ""
echo "---ThisRandomString---"
while true
do
echo "Content-type: text/html"
echo ""
echo "time: "
date
echo "---ThisRandomString---"
sleep 5
done
</code>
Comments are welcome!
Best regards,
Andre
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