| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
| * |
| * This software is licensed as described in the file COPYING, which |
| * you should have received as part of this distribution. The terms |
| * are also available at https://curl.se/docs/copyright.html. |
| * |
| * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| * copies of the Software, and permit persons to whom the Software is |
| * furnished to do so, under the terms of the COPYING file. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| * SPDX-License-Identifier: curl |
| * |
| ***************************************************************************/ |
| /* <DESC> |
| * Use the progress callbacks, old and/or new one depending on available |
| * libcurl version. |
| * </DESC> |
| */ |
| #include <stdio.h> |
| #include <curl/curl.h> |
| |
| #define MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL 3000000 |
| #define STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES 6000 |
| |
| struct myprogress { |
| curl_off_t lastruntime; /* type depends on version, see above */ |
| CURL *curl; |
| }; |
| |
| /* this is how the CURLOPT_XFERINFOFUNCTION callback works */ |
| static int xferinfo(void *p, |
| curl_off_t dltotal, curl_off_t dlnow, |
| curl_off_t ultotal, curl_off_t ulnow) |
| { |
| struct myprogress *myp = (struct myprogress *)p; |
| CURL *curl = myp->curl; |
| curl_off_t curtime = 0; |
| |
| curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME_T, &curtime); |
| |
| /* under certain circumstances it may be desirable for certain functionality |
| to only run every N seconds, in order to do this the transaction time can |
| be used */ |
| if((curtime - myp->lastruntime) >= MINIMAL_PROGRESS_FUNCTIONALITY_INTERVAL) { |
| myp->lastruntime = curtime; |
| fprintf(stderr, "TOTAL TIME: %lu.%06lu\r\n", |
| (unsigned long)(curtime / 1000000), |
| (unsigned long)(curtime % 1000000)); |
| } |
| |
| fprintf(stderr, "UP: %lu of %lu DOWN: %lu of %lu\r\n", |
| (unsigned long)ulnow, (unsigned long)ultotal, |
| (unsigned long)dlnow, (unsigned long)dltotal); |
| |
| if(dlnow > STOP_DOWNLOAD_AFTER_THIS_MANY_BYTES) |
| return 1; |
| return 0; |
| } |
| |
| int main(void) |
| { |
| CURL *curl; |
| CURLcode res = CURLE_OK; |
| struct myprogress prog; |
| |
| curl = curl_easy_init(); |
| if(curl) { |
| prog.lastruntime = 0; |
| prog.curl = curl; |
| |
| curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); |
| |
| curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, xferinfo); |
| /* pass the struct pointer into the xferinfo function */ |
| curl_easy_setopt(curl, CURLOPT_XFERINFODATA, &prog); |
| |
| curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L); |
| res = curl_easy_perform(curl); |
| |
| if(res != CURLE_OK) |
| fprintf(stderr, "%s\n", curl_easy_strerror(res)); |
| |
| /* always cleanup */ |
| curl_easy_cleanup(curl); |
| } |
| return (int)res; |
| } |