RCurl - curlPerform - Time out?!?
Hi Florian Yes, there are several options for a curl operation that control the timeout. The timeout option is the top-level general one. There is also timeout.ms. You can also control the timeout length for different parts of the operation/request such as via the connecttimeout for just establishing the connection. See the Connection Options in the libcurl help page for curl_easy_setopt. Best, D.
On 10/30/12 9:30 AM, Florian Umlauf (CRIE) wrote:
Hi,
I am working with the RCurl package and I am using the curlPerform
function for an soap-query.
The problem is that the code is usually working well, but sometimes the
connection gets lost.
So I wrote a while-loop to repeat the query if anything might happened
so that the same query runs again, but if the query-faults it takes a
very long time for the repetition.
My question is if there is any possibility to force a time out for the
curlPerform function or something like that?
Thanks!
run = 1
i=0
while(run==1)
{
i=i+1
try (
run <- curlPerform(url =
"http://search.webofknowledge.com/esti/wokmws/ws/WokSearchLite.cgi",
httpheader=c("Accept-Encoding"="gzip,deflate","Content-Type"="text/xml;charset=UTF-8",'SOAPAction'='""',
"Cookie"=paste('SID="',s_session,'"',sep=""),"Content-Length"=paste(nchar(s_body)),"Host"="search.webofknowledge.com","Connection"="Keep-Alive","User-Agent"="Apache-HttpClient/4.1.1
(java 1.5)"),
postfields=s_body,
writefunction = h$update
,verbose =
TRUE)
,TRUE)
print(i)
}
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