1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, 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 * using the multi interface to do a single download
26 * </DESC>
27 */
28
29#include <stdio.h>
30#include <string.h>
31
32/* somewhat unix-specific */
33#include <sys/time.h>
34#include <unistd.h>
35
36/* curl stuff */
37#include <curl/curl.h>
38
39/*
40 * Simply download an HTTP file.
41 */
42int main(void)
43{
44  CURL *http_handle;
45  CURLM *multi_handle;
46  int still_running = 1; /* keep number of running handles */
47
48  curl_global_init(CURL_GLOBAL_DEFAULT);
49
50  http_handle = curl_easy_init();
51
52  /* set the options (I left out a few, you will get the point anyway) */
53  curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
54
55  /* init a multi stack */
56  multi_handle = curl_multi_init();
57
58  /* add the individual transfers */
59  curl_multi_add_handle(multi_handle, http_handle);
60
61  do {
62    CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
63
64    if(!mc)
65      /* wait for activity, timeout or "nothing" */
66      mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
67
68    if(mc) {
69      fprintf(stderr, "curl_multi_poll() failed, code %d.\n", (int)mc);
70      break;
71    }
72
73  } while(still_running);
74
75  curl_multi_remove_handle(multi_handle, http_handle);
76
77  curl_easy_cleanup(http_handle);
78
79  curl_multi_cleanup(multi_handle);
80
81  curl_global_cleanup();
82
83  return 0;
84}
85