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