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exception in libcurl

From: Женя <diamand_xex_at_mail.ru>
Date: Sun, 22 Mar 2015 03:17:33 +0300

 Hello.
When I running next stress test, lib curl throws an exception from curl_multi_perform(). Is this known issue or something wrong with my code? 

Thanks, Evgeniy

static void perf_curl(CURLM* curl_m)
{
   int running_handles;
   curl_multi_perform(curl_m, &running_handles);
   int msgs_in_queue;
   CURLMsg *msg = curl_multi_info_read(curl_m, &msgs_in_queue);
   while (msg)
   {
      if (msg->msg == CURLMSG_DONE)
     {
        curl_multi_remove_handle(curl_m, msg->easy_handle);
     }
     msg = curl_multi_info_read(curl_m, &msgs_in_queue);
   }

}
static size_t write_data_callback(char *buffer, size_t size, size_t nitems, void *userp)
{
   return size*nitems;
}
static size_t write_header_callback(char *buffer, size_t size, size_t nitems, void *userp)
{
   return size*nitems;
}
void test_curl()
{
curl_global_init(CURL_GLOBAL_ALL);
CURLM* curl_m = curl_multi_init();
curl_multi_setopt(curl_m, CURLMOPT_MAX_TOTAL_CONNECTIONS , long(100));
curl_multi_setopt(curl_m, CURLMOPT_MAXCONNECTS, long(100));

CURLSH* curl_sh = curl_share_init();
std::vector<CURL*> h;
h.resize(600);

for(int i=0; i<600; i++)
{
      h[i] = curl_easy_init();
      curl_easy_setopt(h[i], CURLOPT_WRITEDATA, 0L);
      curl_easy_setopt(h[i], CURLOPT_WRITEFUNCTION, write_data_callback);
      curl_easy_setopt(h[i], CURLOPT_HEADERDATA, 0L);
      curl_easy_setopt(h[i], CURLOPT_HEADERFUNCTION, write_header_callback);
      curl_easy_setopt(h[i], CURLOPT_URL, "primorye.ru");
      curl_easy_setopt(h[i], CURLOPT_SHARE, curl_sh);
      curl_multi_add_handle(curl_m, h[i]);
      Sleep(10);
   }
   perf_curl(curl_m);
   Sleep(50);
   for(int i=600-1; i>0; i--)
   {
      curl_multi_remove_handle(curl_m, h[i]);
      curl_easy_cleanup(h[i]);
      perf_curl(curl_m);
      Sleep(3);
   }
}

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Received on 2015-03-22