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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel (at) 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 "testtrace.h"
     25 #include "testutil.h"
     26 #include "warnless.h"
     27 #include "memdebug.h"
     28 
     29 #define TEST_HANG_TIMEOUT 60 * 1000
     30 
     31 /*
     32  * Get a single URL without select().
     33  */
     34 
     35 int test(char *URL)
     36 {
     37   CURL *c = NULL;
     38   CURLM *m = NULL;
     39   int res = 0;
     40   int running = 1;
     41   double connect_time = 0.0;
     42   double dbl_epsilon;
     43 
     44   dbl_epsilon = 1.0;
     45   do {
     46     dbl_epsilon /= 2.0;
     47   } while((double)(1.0 + (dbl_epsilon/2.0)) > (double)1.0);
     48 
     49   start_test_timing();
     50 
     51   global_init(CURL_GLOBAL_ALL);
     52 
     53   easy_init(c);
     54 
     55   easy_setopt(c, CURLOPT_HEADER, 1L);
     56   easy_setopt(c, CURLOPT_URL, URL);
     57 
     58   libtest_debug_config.nohex = 1;
     59   libtest_debug_config.tracetime = 1;
     60   easy_setopt(c, CURLOPT_DEBUGDATA, &libtest_debug_config);
     61   easy_setopt(c, CURLOPT_DEBUGFUNCTION, libtest_debug_cb);
     62   easy_setopt(c, CURLOPT_VERBOSE, 1L);
     63 
     64   multi_init(m);
     65 
     66   multi_add_handle(m, c);
     67 
     68   while(running) {
     69     struct timeval timeout;
     70     fd_set fdread, fdwrite, fdexcep;
     71     int maxfd = -99;
     72 
     73     timeout.tv_sec = 0;
     74     timeout.tv_usec = 100000L; /* 100 ms */
     75 
     76     multi_perform(m, &running);
     77 
     78     abort_on_test_timeout();
     79 
     80     if(!running)
     81       break; /* done */
     82 
     83     FD_ZERO(&fdread);
     84     FD_ZERO(&fdwrite);
     85     FD_ZERO(&fdexcep);
     86 
     87     multi_fdset(m, &fdread, &fdwrite, &fdexcep, &maxfd);
     88 
     89     /* At this point, maxfd is guaranteed to be greater or equal than -1. */
     90 
     91     select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
     92 
     93     abort_on_test_timeout();
     94   }
     95 
     96   curl_easy_getinfo(c, CURLINFO_CONNECT_TIME, &connect_time);
     97   if(connect_time < dbl_epsilon) {
     98     fprintf(stderr, "connect time %e is < epsilon %e\n",
     99             connect_time, dbl_epsilon);
    100     res = TEST_ERR_MAJOR_BAD;
    101   }
    102 
    103 test_cleanup:
    104 
    105   /* proper cleanup sequence - type PA */
    106 
    107   curl_multi_remove_handle(m, c);
    108   curl_multi_cleanup(m);
    109   curl_easy_cleanup(c);
    110   curl_global_cleanup();
    111 
    112   return res;
    113 }
    114 
    115