*>*I bet this is the piece of code i need to change:

>

> if (bSomethingToDo)

> {

> // Call multi_perform

> curl_multi_perform(m_pstCurlMultiHandle, &iRunningFDs);

> }

> else

> {

> usleep(10000);

> }

>This might seem trivial for you but i'm still learning libcurl and i find
the documentation quite misleading for starters like me..

>

> You could get the finished transfers (from whatever reason) with
> curl_multi_info_read [1]
> Instead of usleep, you should call curl_multi_wait [2] which will return
> to your thread code once there is an event on the sockets / timeout.
> Please look at the code example on curl_multi_wait, it might help you a
> lot.

Ok for curl_multi_info_read. I changed my code as follow :

    curlret = curl_multi_perform(m_pstCurlMultiHandle, &iRunningFDs);
    if (!iRunningFDs)
    {
      usleep(10000);
    }
    else
    {
      if(curlret == CURLM_OK) {
        int iWaitFDs = 0;
        /* wait for activity, timeout or "nothing" */
        curlret = curl_multi_wait(m_pstCurlMultiHandle, NULL, 0, 10000,
&iWaitFDs);
        if (iWaitFDs)
        {
          struct CURLMsg *m;
          do {
            int msgq = 0;
            m = curl_multi_info_read(m_pstCurlMultiHandle, &msgq);
            if(m && (m->msg == CURLMSG_DONE)) {
              //Find the connection using this handle
              if (m->data.result != CURLE_OK)
              {
                for (int i = 0; i < MAX_CONNECTIONS; i++)
                {
                  if (m->easy_handle == m_plstCURLHandles[i]->m_pstHandle)
                  {
                    CHSSConnection * poConnection = m_plstConnectionList[i];
                    //Discard all buffers and put session back in PREINIT
                    poConnection->resetConnection();
                    //Remove curl handle from multihandle
                    curl_multi_remove_handle(m_pstCurlMultiHandle,
m->easy_handle);
                  }
                }
              }
            }
          } while(m);
        }
      }
    }

However this does not work, as multi_wait will here "wait" for the
duration. I dont want this behaviour because the data to be sent are coming
from another thread and i want to send them as soon as they are available.
Maybe i should add a specific file descriptor in the multi_wait that would
trigger it ? Seems like quite complicated

Regards

2016-03-09 16:29 GMT+01:00 Yehezkel Horowitz <horowity_at_checkpoint.com>:

> *>*I bet this is the piece of code i need to change:
>
> >
>
> > if (bSomethingToDo)
>
> > {
>
> > // Call multi_perform
>
> > curl_multi_perform(m_pstCurlMultiHandle, &iRunningFDs);
>
> > }
>
> > else
>
> > {
>
> > usleep(10000);
>
> > }
>
>
>
> >This might seem trivial for you but i'm still learning libcurl and i
> find the documentation quite misleading for starters like me..
>
> >
>
> You could get the finished transfers (from whatever reason) with
> curl_multi_info_read [1]
>
> Instead of usleep, you should call curl_multi_wait [2] which will return
> to your thread code once there is an event on the sockets / timeout.
>
> Please look at the code example on curl_multi_wait, it might help you a
> lot.
>
> [1] https://curl.haxx.se/libcurl/c/curl_multi_info_read.html
>
> [2] https://curl.haxx.se/libcurl/c/curl_multi_wait.html
>
> HTH
>
> Yehezkel Horowitz
>
> -------------------------------------------------------------------
> List admin: https://cool.haxx.se/list/listinfo/curl-library
> Etiquette: https://curl.haxx.se/mail/etiquette.html
>

-- 
Maël BOUTIN

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Received on 2016-03-09