I guess options CURLOPT_LOW_SPEED_LIMIT & CURLOPT_LOW_SPEED_TIME may help. Will try out. Please let me know if you have any other advice. Thanks.
On Tue, Sep 15, 2015 at 6:39 AM, Raghu <[email protected]> wrote: > Hello Experts, > I'm facing problem in downloading a file via tftp using curl. I'm > using 7.33.0 version > and I have patched "#1310 TFTP connection takes CURLOPT_TIMEOUT > seconds to time out, not CURLOPT_CONNECTTIMEOUT" bug. > In the write callback routine, I send the received bytes to a remote > machine and wait maximum of 90secs for the acknowledgement to receive. > If the ack is received from the remote machine I return the size*nmemb > bytes for curl to fetch next bytes for transfer. If the ack is not > received from remote machine I return zero bytes causing curl to abort > the transfer with curl write error. > I had set CURLOPT_CONNECTTIMEOUT=10 and have tested below scenarios. >>.For unreachable tftp ip address, connection timeout happens after 10secs and >>curl returns return code = 28 Timeout was reached. Looks fine to me. >>.Initiated the tftp transfer and after few bytes of transfer I shut the >>remote server link, I do not receive the ack for byte transferred within >>90sec and return zero.curl returned code=23.Failed writing received data to >>disk/application. Looks fine to me. >>.Initiated the tftp transfer and after few bytes of transfer I shut the tftp >>server link, curl did not return any error.I think it keeps waiting for data >>from tftp server. I think curl waits for default CURLOPT_TIMEOUT . Is there >>any way for me to timeout in the case where tftp link goes down in the middle >>of transfer and curl returns an error similar to connection timeout. I know >>CURLOPT_TIMEOUT sets the maximum time for allowing the request to >>complete.Suppose I set CURLOPT_TIMEOUT to 30secs, and suppose complete >>transfer takes around 20secs. If tftp link goes down at 10sec and comes back >>at 25sec,tftp data transfer resumes but due to CURLOPT_TIMEOUT set as 30secs >>the timeout is reached at 30sec and transfer will be incomplete. > Can you please help in resolving the above scenario? > > -- > Thanks > Raghu > SAVE TREES..GO GREEN -- Thanks Raghu SAVE TREES..GO GREEN ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
