1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2017, 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.haxx.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 ***************************************************************************/
22#include "test.h"
23
24#include <fcntl.h>
25
26#include "testutil.h"
27#include "warnless.h"
28#include "memdebug.h"
29
30#define TEST_HANG_TIMEOUT 30 * 1000
31
32/* 500 milliseconds allowed. An extreme number but lets be really conservative
33 to allow old and slow machines to run this test too */
34#define MAX_BLOCKED_TIME_MS 500
35
36int test(char *URL)
37{
38 CURL *handle = NULL;
39 CURLM *mhandle = NULL;
40 int res = 0;
41 int still_running = 0;
42
43 start_test_timing();
44
45 global_init(CURL_GLOBAL_ALL);
46
47 easy_init(handle);
48
49 easy_setopt(handle, CURLOPT_URL, URL);
50 easy_setopt(handle, CURLOPT_VERBOSE, 1L);
51
52 multi_init(mhandle);
53
54 multi_add_handle(mhandle, handle);
55
56 multi_perform(mhandle, &still_running);
57
58 abort_on_test_timeout();
59
60 while(still_running) {
61 struct timeval timeout;
62 fd_set fdread;
63 fd_set fdwrite;
64 fd_set fdexcep;
65 int maxfd = -99;
66 struct timeval before;
67 struct timeval after;
68 long e;
69
70 timeout.tv_sec = 0;
71 timeout.tv_usec = 100000L; /* 100 ms */
72
73 FD_ZERO(&fdread);
74 FD_ZERO(&fdwrite);
75 FD_ZERO(&fdexcep);
76
77 multi_fdset(mhandle, &fdread, &fdwrite, &fdexcep, &maxfd);
78
79 /* At this point, maxfd is guaranteed to be greater or equal than -1. */
80
81 select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
82
83 abort_on_test_timeout();
84
85 fprintf(stderr, "ping\n");
86 before = tutil_tvnow();
87
88 multi_perform(mhandle, &still_running);
89
90 abort_on_test_timeout();
91
92 after = tutil_tvnow();
93 e = tutil_tvdiff(after, before);
94 fprintf(stderr, "pong = %ld\n", e);
95
96 if(e > MAX_BLOCKED_TIME_MS) {
97 res = 100;
98 break;
99 }
100 }
101
102test_cleanup:
103
104 /* undocumented cleanup sequence - type UA */
105
106 curl_multi_cleanup(mhandle);
107 curl_easy_cleanup(handle);
108 curl_global_cleanup();
109
110 return res;
111}
112