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https://github.com/moparisthebest/curl
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3b80d3ca46
This change introduces new alternatives for the existing six curl_easy_getinfo() options that return sizes or speeds as doubles. The new versions are named like the old ones but with an appended '_T': CURLINFO_CONTENT_LENGTH_DOWNLOAD_T CURLINFO_CONTENT_LENGTH_UPLOAD_T CURLINFO_SIZE_DOWNLOAD_T CURLINFO_SIZE_UPLOAD_T CURLINFO_SPEED_DOWNLOAD_T CURLINFO_SPEED_UPLOAD_T Closes #1511
66 lines
2.3 KiB
Groff
66 lines
2.3 KiB
Groff
.\" **************************************************************************
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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) 1998 - 2017, 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.haxx.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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.\" **************************************************************************
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.\"
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.TH CURLINFO_CONTENT_LENGTH_DOWNLOAD 3 "1 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
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.SH NAME
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CURLINFO_CONTENT_LENGTH_DOWNLOAD \- get content-length of download
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
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double *content_length);
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.SH DESCRIPTION
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Pass a pointer to a double to receive the content-length of the download. This
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is the value read from the Content-Length: field. Since 7.19.4, this returns
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-1 if the size isn't known.
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\fICURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3)\fP is a newer replacement that returns a more
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sensible variable type.
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.SH PROTOCOLS
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HTTP(S)
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
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/* Perform the request */
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res = curl_easy_perform(curl);
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if(!res) {
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/* check the size */
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double cl;
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res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &cl);
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if(!res) {
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printf("Size: %.0f\\n", cl);
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}
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 7.6.1
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
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.BR CURLINFO_CONTENT_LENGTH_UPLOAD "(3), "
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