Re: Issue - necessary data rewind wasn't possible
On Wed, 11 Dec 2013, sachin dravid wrote: Curl logs: === -connection died retrying a fresh connect -necessary data rewind wasn't possible === Sometimes it gets success in retry but sometimes it fails with necessary data rewind wasn't possible. Can anyone explain reason for this and how to handle it? Use CURLOPT_SEEKFUNCTION to set a callback that allows seeking back in the stream to allow libcurl to resend data. http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTSEEKFUNCTION One of the observation is that I am getting this error with SSL(https). Without SSL it is working fine. At times libcurl needs to resend data it already sent in a POST/PUT request, and if it can't rewind that data on its own you need to provide a way for it to do it. -- / daniel.haxx.se --- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
Re: Issue - necessary data rewind wasn't possible
Thanks for the help!! I have one more question on this. In this situation I am getting CURLE_OK. Because the connection has broken, I don't have HTTP code as well. I can make a retry on this particular case from my application, but if I get CURLE_OK how does my application recognize it? Could you please tell me how can my application recognize for retry in this case? Also, if possible kindly send me some reference example of CURLOPT_SEEKFUNCTION, as I am not able to find it on WWW. Thanks, Sachin On Wed, Dec 11, 2013 at 8:35 PM, Daniel Stenberg dan...@haxx.se wrote: On Wed, 11 Dec 2013, sachin dravid wrote: Curl logs: === -connection died retrying a fresh connect -necessary data rewind wasn't possible === Sometimes it gets success in retry but sometimes it fails with necessary data rewind wasn't possible. Can anyone explain reason for this and how to handle it? Use CURLOPT_SEEKFUNCTION to set a callback that allows seeking back in the stream to allow libcurl to resend data. http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTSEEKFUNCTION One of the observation is that I am getting this error with SSL(https). Without SSL it is working fine. At times libcurl needs to resend data it already sent in a POST/PUT request, and if it can't rewind that data on its own you need to provide a way for it to do it. -- / daniel.haxx.se --- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html -- Thanks and Regards, Sachin Dravid --- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
RE: Issue - necessary data rewind wasn't possible
I have one more question on this. In this situation I am getting CURLE_OK. Because the connection has broken, I don't have HTTP code as well. I can make a retry on this particular case from my application, but if I get CURLE_OK how does my application recognize it? Could you please tell me how can my application recognize for retry in this case? You should use CURLOPT_IOCTLFUNCTION and you will be called with CURLIOCMD_RESTARTREAD. HTH Yehezkel Horowitz --- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html