maxconnects.c (2025B)
1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) James Fuller, <jim@webcomposite.com>, 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 /* <DESC> 25 * Set maximum number of persistent connections to 1. 26 * </DESC> 27 */ 28 #include <stdio.h> 29 #include <curl/curl.h> 30 31 int main(void) 32 { 33 CURL *curl; 34 CURLcode res; 35 36 curl = curl_easy_init(); 37 if(curl) { 38 const char *urls[] = { "https://example.com", 39 "https://curl.se", 40 "https://www.example/", 41 NULL /* end of list */ 42 }; 43 int i = 0; 44 45 /* Change the maximum number of persistent connection */ 46 curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 1L); 47 48 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); 49 50 /* loop over the URLs */ 51 while(urls[i]) { 52 curl_easy_setopt(curl, CURLOPT_URL, urls[i]); 53 54 /* Perform the request, res gets the return code */ 55 res = curl_easy_perform(curl); 56 /* Check for errors */ 57 if(res != CURLE_OK) 58 fprintf(stderr, "curl_easy_perform() failed: %s\n", 59 curl_easy_strerror(res)); 60 i++; 61 } 62 /* always cleanup */ 63 curl_easy_cleanup(curl); 64 } 65 return 0; 66 }