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    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2020, 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 "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: }