• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 "testutil.h"
27 #include "timediff.h"
28 #include "warnless.h"
29 #include "memdebug.h"
30 
31 #define TEST_HANG_TIMEOUT 60 * 1000
32 
33 static char const testData[] = ".abc\0xyz";
34 static off_t const testDataSize = sizeof(testData) - 1;
35 
test(char * URL)36 int test(char *URL)
37 {
38   CURL *easy;
39   CURLM *multi_handle;
40   int still_running; /* keep number of running handles */
41   CURLMsg *msg; /* for picking up messages with the transfer status */
42   int msgs_left; /* how many messages are left */
43   int res = CURLE_OK;
44 
45   start_test_timing();
46 
47   global_init(CURL_GLOBAL_ALL);
48 
49   /* Allocate one CURL handle per transfer */
50   easy = curl_easy_init();
51 
52   /* init a multi stack */
53   multi_handle = curl_multi_init();
54 
55   /* add the individual transfer */
56   curl_multi_add_handle(multi_handle, easy);
57 
58   /* set the options (I left out a few, you'll get the point anyway) */
59   curl_easy_setopt(easy, CURLOPT_URL, URL);
60   curl_easy_setopt(easy, CURLOPT_POSTFIELDSIZE_LARGE,
61                    (curl_off_t)testDataSize);
62   curl_easy_setopt(easy, CURLOPT_POSTFIELDS, testData);
63 
64   /* we start some action by calling perform right away */
65   curl_multi_perform(multi_handle, &still_running);
66 
67   abort_on_test_timeout();
68 
69   do {
70     struct timeval timeout;
71     int rc; /* select() return code */
72     CURLMcode mc; /* curl_multi_fdset() return code */
73 
74     fd_set fdread;
75     fd_set fdwrite;
76     fd_set fdexcep;
77     int maxfd = -1;
78 
79     long curl_timeo = -1;
80 
81     FD_ZERO(&fdread);
82     FD_ZERO(&fdwrite);
83     FD_ZERO(&fdexcep);
84 
85     /* set a suitable timeout to play around with */
86     timeout.tv_sec = 1;
87     timeout.tv_usec = 0;
88 
89     curl_multi_timeout(multi_handle, &curl_timeo);
90     if(curl_timeo >= 0) {
91       curlx_mstotv(&timeout, curl_timeo);
92       if(timeout.tv_sec > 1) {
93         timeout.tv_sec = 1;
94         timeout.tv_usec = 0;
95       }
96     }
97 
98     /* get file descriptors from the transfers */
99     mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
100 
101     if(mc != CURLM_OK) {
102       fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
103       break;
104     }
105 
106     /* On success the value of maxfd is guaranteed to be >= -1. We call
107        select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
108        no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
109        to sleep 100ms, which is the minimum suggested value in the
110        curl_multi_fdset() doc. */
111 
112     if(maxfd == -1) {
113 #if defined(WIN32) || defined(_WIN32)
114       Sleep(100);
115       rc = 0;
116 #else
117       /* Portable sleep for platforms other than Windows. */
118       struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
119       rc = select(0, NULL, NULL, NULL, &wait);
120 #endif
121     }
122     else {
123       /* Note that on some platforms 'timeout' may be modified by select().
124          If you need access to the original value save a copy beforehand. */
125       rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
126     }
127 
128     switch(rc) {
129     case -1:
130       /* select error */
131       break;
132     case 0: /* timeout */
133     default: /* action */
134       curl_multi_perform(multi_handle, &still_running);
135       break;
136     }
137 
138     abort_on_test_timeout();
139   } while(still_running);
140 
141   /* See how the transfers went */
142   do {
143     msg = curl_multi_info_read(multi_handle, &msgs_left);
144     if(msg && msg->msg == CURLMSG_DONE) {
145       printf("HTTP transfer completed with status %d\n", msg->data.result);
146       break;
147     }
148 
149     abort_on_test_timeout();
150   } while(msg);
151 
152 test_cleanup:
153   curl_multi_cleanup(multi_handle);
154 
155   /* Free the CURL handles */
156   curl_easy_cleanup(easy);
157   curl_global_cleanup();
158 
159   return res;
160 }
161