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