74 lines
2.5 KiB
Groff
74 lines
2.5 KiB
Groff
|
.\" **************************************************************************
|
||
|
|
.\" * _ _ ____ _
|
||
|
|
.\" * 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
|
||
|
|
.\" *
|
||
|
|
.\" **************************************************************************
|
||
|
|
.\"
|
||
|
|
.TH CURLINFO_RETRY_AFTER 3 "6 Aug 2019" libcurl libcurl
|
||
|
|
.SH NAME
|
||
|
|
CURLINFO_RETRY_AFTER \- returns the Retry-After retry delay
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.nf
|
||
|
|
#include <curl/curl.h>
|
||
|
|
|
||
|
|
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RETRY_AFTER,
|
||
|
|
curl_off_t *retry);
|
||
|
|
.fi
|
||
|
|
.SH DESCRIPTION
|
||
|
|
Pass a pointer to a curl_off_t variable to receive the number of seconds the
|
||
|
|
HTTP server suggests the client should wait until the next request is
|
||
|
|
issued. The information from the "Retry-After:" header.
|
||
|
|
|
||
|
|
While the HTTP header might contain a fixed date string, the
|
||
|
|
\fICURLINFO_RETRY_AFTER(3)\fP always returns the number of seconds to wait -
|
||
|
|
or zero if there was no header or the header could not be parsed.
|
||
|
|
.SH DEFAULT
|
||
|
|
Returns zero delay if there was no header.
|
||
|
|
.SH PROTOCOLS
|
||
|
|
HTTP(S)
|
||
|
|
.SH EXAMPLE
|
||
|
|
.nf
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
CURL *curl = curl_easy_init();
|
||
|
|
if(curl) {
|
||
|
|
CURLcode res;
|
||
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
||
|
|
res = curl_easy_perform(curl);
|
||
|
|
if(res == CURLE_OK) {
|
||
|
|
curl_off_t wait = 0;
|
||
|
|
curl_easy_getinfo(curl, CURLINFO_RETRY_AFTER, &wait);
|
||
|
|
if(wait)
|
||
|
|
printf("Wait for %" CURL_FORMAT_CURL_OFF_T " seconds\\n", wait);
|
||
|
|
}
|
||
|
|
curl_easy_cleanup(curl);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
.fi
|
||
|
|
.SH AVAILABILITY
|
||
|
|
Added in 7.66.0
|
||
|
|
.SH RETURN VALUE
|
||
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.BR curl_easy_header (3),
|
||
|
|
.BR CURLOPT_HEADERFUNCTION (3),
|
||
|
|
.BR CURLOPT_STDERR (3)
|