lib526.c (5074B)
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 /* 25 * This code sets up multiple easy handles that transfer a single file from 26 * the same URL, in a serial manner after each other. Due to the connection 27 * sharing within the multi handle all transfers are performed on the same 28 * persistent connection. 29 * 30 * This source code is used for test526, test527 and test532 with branches 31 * controlling the small differences. 32 * 33 * - test526 closes all easy handles after 34 * they all have transferred the file over the single connection 35 * - test527 closes each easy handle after each single transfer. 36 * - test532 uses only a single easy handle that is removed, reset and then 37 * re-added for each transfer 38 * 39 * Test case 526, 527 and 532 use FTP, while test 528 uses the lib526 tool but 40 * with HTTP. 41 */ 42 43 #include "first.h" 44 45 #include "memdebug.h" 46 47 static CURLcode test_lib526(char *URL) 48 { 49 CURLcode res = CURLE_OK; 50 CURL *curl[NUM_HANDLES]; 51 int running; 52 CURLM *m = NULL; 53 size_t current = 0; 54 size_t i; 55 56 for(i = 0; i < CURL_ARRAYSIZE(curl); i++) 57 curl[i] = NULL; 58 59 start_test_timing(); 60 61 global_init(CURL_GLOBAL_ALL); 62 63 /* get each easy handle */ 64 for(i = 0; i < CURL_ARRAYSIZE(curl); i++) { 65 easy_init(curl[i]); 66 /* specify target */ 67 easy_setopt(curl[i], CURLOPT_URL, URL); 68 /* go verbose */ 69 easy_setopt(curl[i], CURLOPT_VERBOSE, 1L); 70 } 71 72 multi_init(m); 73 74 multi_add_handle(m, curl[current]); 75 76 curl_mfprintf(stderr, "Start at URL 0\n"); 77 78 for(;;) { 79 struct timeval interval; 80 fd_set rd, wr, exc; 81 int maxfd = -99; 82 83 interval.tv_sec = 1; 84 interval.tv_usec = 0; 85 86 multi_perform(m, &running); 87 88 abort_on_test_timeout(); 89 90 if(!running) { 91 if(testnum == 527) { 92 /* NOTE: this code does not remove the handle from the multi handle 93 here, which would be the nice, sane and documented way of working. 94 This however tests that the API survives this abuse gracefully. */ 95 curl_easy_cleanup(curl[current]); 96 curl[current] = NULL; 97 } 98 if(++current < CURL_ARRAYSIZE(curl)) { 99 curl_mfprintf(stderr, "Advancing to URL %d\n", (int)current); 100 if(testnum == 532) { 101 /* first remove the only handle we use */ 102 curl_multi_remove_handle(m, curl[0]); 103 104 /* make us reuse the same handle all the time, and try resetting 105 the handle first too */ 106 curl_easy_reset(curl[0]); 107 easy_setopt(curl[0], CURLOPT_URL, URL); 108 /* go verbose */ 109 easy_setopt(curl[0], CURLOPT_VERBOSE, 1L); 110 111 /* re-add it */ 112 multi_add_handle(m, curl[0]); 113 } 114 else { 115 multi_add_handle(m, curl[current]); 116 } 117 } 118 else { 119 break; /* done */ 120 } 121 } 122 123 FD_ZERO(&rd); 124 FD_ZERO(&wr); 125 FD_ZERO(&exc); 126 127 multi_fdset(m, &rd, &wr, &exc, &maxfd); 128 129 /* At this point, maxfd is guaranteed to be greater or equal than -1. */ 130 131 select_test(maxfd + 1, &rd, &wr, &exc, &interval); 132 133 abort_on_test_timeout(); 134 } 135 136 test_cleanup: 137 138 if((testnum == 526) || (testnum == 528)) { 139 /* proper cleanup sequence - type PB */ 140 141 for(i = 0; i < CURL_ARRAYSIZE(curl); i++) { 142 curl_multi_remove_handle(m, curl[i]); 143 curl_easy_cleanup(curl[i]); 144 } 145 curl_multi_cleanup(m); 146 curl_global_cleanup(); 147 } 148 else if(testnum == 527) { 149 /* Upon non-failure test flow the easy's have already been cleanup'ed. In 150 case there is a failure we arrive here with easy's that have not been 151 cleanup'ed yet, in this case we have to cleanup them or otherwise these 152 will be leaked, let's use undocumented cleanup sequence - type UB */ 153 154 if(res != CURLE_OK) 155 for(i = 0; i < CURL_ARRAYSIZE(curl); i++) 156 curl_easy_cleanup(curl[i]); 157 158 curl_multi_cleanup(m); 159 curl_global_cleanup(); 160 161 } 162 else if(testnum == 532) { 163 /* undocumented cleanup sequence - type UB */ 164 165 for(i = 0; i < CURL_ARRAYSIZE(curl); i++) 166 curl_easy_cleanup(curl[i]); 167 curl_multi_cleanup(m); 168 curl_global_cleanup(); 169 } 170 171 return res; 172 }