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 * multi interface code doing two parallel HTTP transfers
26 * </DESC>
27 */
28#include <stdio.h>
29#include <string.h>
30
31/* somewhat unix-specific */
32#include <sys/time.h>
33#include <unistd.h>
34
35/* curl stuff */
36#include <curl/curl.h>
37
38/*
39 * Simply download two HTTP files!
40 */
41int main(void)
42{
43  CURL *http_handle;
44  CURL *http_handle2;
45  CURLM *multi_handle;
46
47  int still_running = 1; /* keep number of running handles */
48
49  http_handle = curl_easy_init();
50  http_handle2 = curl_easy_init();
51
52  /* set options */
53  curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
54
55  /* set options */
56  curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
57
58  /* init a multi stack */
59  multi_handle = curl_multi_init();
60
61  /* add the individual transfers */
62  curl_multi_add_handle(multi_handle, http_handle);
63  curl_multi_add_handle(multi_handle, http_handle2);
64
65  while(still_running) {
66    CURLMsg *msg;
67    int queued;
68    CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
69
70    if(still_running)
71      /* wait for activity, timeout or "nothing" */
72      mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
73
74    if(mc)
75      break;
76
77    do {
78      msg = curl_multi_info_read(multi_handle, &queued);
79      if(msg) {
80        if(msg->msg == CURLMSG_DONE) {
81          /* a transfer ended */
82          fprintf(stderr, "Transfer completed\n");
83        }
84      }
85    } while(msg);
86  }
87
88  curl_multi_remove_handle(multi_handle, http_handle);
89  curl_multi_remove_handle(multi_handle, http_handle2);
90
91  curl_multi_cleanup(multi_handle);
92
93  curl_easy_cleanup(http_handle);
94  curl_easy_cleanup(http_handle2);
95
96  return 0;
97}
98