1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2012, 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 http://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_US 500000 35 36/* return the number of microseconds between two time stamps */ 37static int elapsed(struct timeval *before, 38 struct timeval *after) 39{ 40 ssize_t result; 41 42 result = (after->tv_sec - before->tv_sec) * 1000000 + 43 after->tv_usec - before->tv_usec; 44 if (result < 0) 45 result = 0; 46 47 return curlx_sztosi(result); 48} 49 50 51int test(char *URL) 52{ 53 CURL *handle = NULL; 54 CURLM *mhandle = NULL; 55 int res = 0; 56 int still_running = 0; 57 58 start_test_timing(); 59 60 global_init(CURL_GLOBAL_ALL); 61 62 easy_init(handle); 63 64 easy_setopt(handle, CURLOPT_URL, URL); 65 easy_setopt(handle, CURLOPT_VERBOSE, 1L); 66 67 multi_init(mhandle); 68 69 multi_add_handle(mhandle, handle); 70 71 multi_perform(mhandle, &still_running); 72 73 abort_on_test_timeout(); 74 75 while(still_running) { 76 struct timeval timeout; 77 fd_set fdread; 78 fd_set fdwrite; 79 fd_set fdexcep; 80 int maxfd = -99; 81 struct timeval before; 82 struct timeval after; 83 int e; 84 85 timeout.tv_sec = 0; 86 timeout.tv_usec = 100000L; /* 100 ms */ 87 88 FD_ZERO(&fdread); 89 FD_ZERO(&fdwrite); 90 FD_ZERO(&fdexcep); 91 92 multi_fdset(mhandle, &fdread, &fdwrite, &fdexcep, &maxfd); 93 94 /* At this point, maxfd is guaranteed to be greater or equal than -1. */ 95 96 select_test(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout); 97 98 abort_on_test_timeout(); 99 100 fprintf(stderr, "ping\n"); 101 before = tutil_tvnow(); 102 103 multi_perform(mhandle, &still_running); 104 105 abort_on_test_timeout(); 106 107 after = tutil_tvnow(); 108 e = elapsed(&before, &after); 109 fprintf(stderr, "pong = %d\n", e); 110 111 if(e > MAX_BLOCKED_TIME_US) { 112 res = 100; 113 break; 114 } 115 } 116 117test_cleanup: 118 119 /* undocumented cleanup sequence - type UA */ 120 121 curl_multi_cleanup(mhandle); 122 curl_easy_cleanup(handle); 123 curl_global_cleanup(); 124 125 return res; 126} 127