1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2016, 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 "testutil.h"
25#include "warnless.h"
26#include "memdebug.h"
27
28#define TEST_HANG_TIMEOUT 60 * 1000
29
30char const testData[] = ".abc\0xyz";
31off_t const testDataSize = sizeof(testData) - 1;
32
33int test(char *URL)
34{
35  CURL *easy;
36  CURLM *multi_handle;
37  int still_running; /* keep number of running handles */
38  CURLMsg *msg; /* for picking up messages with the transfer status */
39  int msgs_left; /* how many messages are left */
40
41  /* Allocate one CURL handle per transfer */
42  easy = curl_easy_init();
43
44  /* init a multi stack */
45  multi_handle = curl_multi_init();
46
47  /* add the individual transfer */
48  curl_multi_add_handle(multi_handle, easy);
49
50  /* set the options (I left out a few, you'll get the point anyway) */
51  curl_easy_setopt(easy, CURLOPT_URL, URL);
52  curl_easy_setopt(easy, CURLOPT_POSTFIELDSIZE_LARGE,
53                   (curl_off_t)testDataSize);
54  curl_easy_setopt(easy, CURLOPT_POSTFIELDS, testData);
55
56  /* we start some action by calling perform right away */
57  curl_multi_perform(multi_handle, &still_running);
58
59  do {
60    struct timeval timeout;
61    int rc; /* select() return code */
62    CURLMcode mc; /* curl_multi_fdset() return code */
63
64    fd_set fdread;
65    fd_set fdwrite;
66    fd_set fdexcep;
67    int maxfd = -1;
68
69    long curl_timeo = -1;
70
71    FD_ZERO(&fdread);
72    FD_ZERO(&fdwrite);
73    FD_ZERO(&fdexcep);
74
75    /* set a suitable timeout to play around with */
76    timeout.tv_sec = 1;
77    timeout.tv_usec = 0;
78
79    curl_multi_timeout(multi_handle, &curl_timeo);
80    if(curl_timeo >= 0) {
81      timeout.tv_sec = curl_timeo / 1000;
82      if(timeout.tv_sec > 1)
83        timeout.tv_sec = 1;
84      else
85        timeout.tv_usec = (curl_timeo % 1000) * 1000;
86    }
87
88    /* get file descriptors from the transfers */
89    mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
90
91    if(mc != CURLM_OK) {
92      fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
93      break;
94    }
95
96    /* On success the value of maxfd is guaranteed to be >= -1. We call
97       select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
98       no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
99       to sleep 100ms, which is the minimum suggested value in the
100       curl_multi_fdset() doc. */
101
102    if(maxfd == -1) {
103#ifdef _WIN32
104      Sleep(100);
105      rc = 0;
106#else
107      /* Portable sleep for platforms other than Windows. */
108      struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
109      rc = select(0, NULL, NULL, NULL, &wait);
110#endif
111    }
112    else {
113      /* Note that on some platforms 'timeout' may be modified by select().
114         If you need access to the original value save a copy beforehand. */
115      rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
116    }
117
118    switch(rc) {
119    case -1:
120      /* select error */
121      break;
122    case 0: /* timeout */
123    default: /* action */
124      curl_multi_perform(multi_handle, &still_running);
125      break;
126    }
127  } while(still_running);
128
129  /* See how the transfers went */
130  while((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
131    if(msg->msg == CURLMSG_DONE) {
132      printf("HTTP transfer completed with status %d\n", msg->data.result);
133      break;
134    }
135  }
136
137  curl_multi_cleanup(multi_handle);
138
139  /* Free the CURL handles */
140  curl_easy_cleanup(easy);
141
142  return 0;
143}
144
145