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 #include "test.h"
25
26 #include <fcntl.h>
27
28 #include "testutil.h"
29 #include "warnless.h"
30 #include "memdebug.h"
31
32 #define TEST_HANG_TIMEOUT 30 * 1000
33
34 /* 500 milliseconds allowed. An extreme number but lets be really conservative
35 to allow old and slow machines to run this test too */
36 #define MAX_BLOCKED_TIME_MS 500
37
test(char * URL)38 CURLcode test(char *URL)
39 {
40 CURL *handle = NULL;
41 CURLM *mhandle = NULL;
42 CURLcode res = CURLE_OK;
43 int still_running = 0;
44
45 start_test_timing();
46
47 global_init(CURL_GLOBAL_ALL);
48
49 easy_init(handle);
50
51 easy_setopt(handle, CURLOPT_URL, URL);
52 easy_setopt(handle, CURLOPT_VERBOSE, 1L);
53
54 multi_init(mhandle);
55
56 multi_add_handle(mhandle, handle);
57
58 multi_perform(mhandle, &still_running);
59
60 abort_on_test_timeout();
61
62 while(still_running) {
63 struct timeval timeout;
64 fd_set fdread;
65 fd_set fdwrite;
66 fd_set fdexcep;
67 int maxfd = -99;
68 struct timeval before;
69 struct timeval after;
70 long e;
71
72 timeout.tv_sec = 0;
73 timeout.tv_usec = 100000L; /* 100 ms */
74
75 FD_ZERO(&fdread);
76 FD_ZERO(&fdwrite);
77 FD_ZERO(&fdexcep);
78
79 multi_fdset(mhandle, &fdread, &fdwrite, &fdexcep, &maxfd);
80
81 /* At this point, maxfd is guaranteed to be greater or equal than -1. */
82
83 select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
84
85 abort_on_test_timeout();
86
87 fprintf(stderr, "ping\n");
88 before = tutil_tvnow();
89
90 multi_perform(mhandle, &still_running);
91
92 abort_on_test_timeout();
93
94 after = tutil_tvnow();
95 e = tutil_tvdiff(after, before);
96 fprintf(stderr, "pong = %ld\n", e);
97
98 if(e > MAX_BLOCKED_TIME_MS) {
99 res = (CURLcode) 100;
100 break;
101 }
102 }
103
104 test_cleanup:
105
106 /* undocumented cleanup sequence - type UA */
107
108 curl_multi_cleanup(mhandle);
109 curl_easy_cleanup(handle);
110 curl_global_cleanup();
111
112 return res;
113 }
114
