1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) James Fuller, <jim@webcomposite.com>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24/* <DESC>
25 * Set maximum number of persistent connections to 1.
26 * </DESC>
27 */
28#include <stdio.h>
29#include <curl/curl.h>
30
31int main(void)
32{
33  CURL *curl;
34  CURLcode res;
35
36  curl = curl_easy_init();
37  if(curl) {
38    const char *urls[] = { "https://example.com",
39      "https://curl.se",
40      "https://www.example/",
41      NULL /* end of list */
42    };
43    int i = 0;
44
45    /* Change the maximum number of persistent connection   */
46    curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 1L);
47
48    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
49
50    /* loop over the URLs */
51    while(urls[i]) {
52      curl_easy_setopt(curl, CURLOPT_URL, urls[i]);
53
54      /* Perform the request, res will get the return code */
55      res = curl_easy_perform(curl);
56      /* Check for errors */
57      if(res != CURLE_OK)
58        fprintf(stderr, "curl_easy_perform() failed: %s\n",
59                curl_easy_strerror(res));
60      i++;
61    }
62    /* always cleanup */
63    curl_easy_cleanup(curl);
64  }
65  return 0;
66}
67