mirror of
https://github.com/curl/curl.git
synced 2026-04-17 14:41:42 +03:00
d01d2ec9f1
Some CURLOPT constants defined in the curl public headers were initially enums (= ints), or macros with bare numeric values. Recent curl releases upgraded them to `long` constants, to make them pass correctly to `curl_easy_setop()` by default, i.e. without requiring a `(long)` cast. This patch drops such casts from the examples embedded in the docs. At the same time it documents which curl release made them `long` types, to keep them useful when working with previous libcurl versions. Also: - drop a `(long)` cast that was never necessary. - CURLOPT_ALTSVC_CTRL.md: bump local copy of macros to long. - test1119: make it ignore symbols ending with an underscore, to skip wildcard, e.g. `**CURLAUTH_***`. Closes #18130
76 lines
1.6 KiB
Markdown
76 lines
1.6 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: CURLOPT_TIMEVALUE
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- CURLOPT_TIMECONDITION (3)
|
|
- CURLOPT_TIMEVALUE_LARGE (3)
|
|
Protocol:
|
|
- HTTP
|
|
Added-in: 7.1
|
|
---
|
|
|
|
# NAME
|
|
|
|
CURLOPT_TIMEVALUE - time value for conditional
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEVALUE, long val);
|
|
~~~
|
|
|
|
# DESCRIPTION
|
|
|
|
Pass a long *val* as parameter. This should be the time counted as seconds
|
|
since 1 Jan 1970, and the time is used in a condition as specified with
|
|
CURLOPT_TIMECONDITION(3).
|
|
|
|
On systems with 32-bit 'long' variables (such as Windows), this option cannot
|
|
set dates beyond the year 2038. Consider CURLOPT_TIMEVALUE_LARGE(3)
|
|
instead.
|
|
|
|
# DEFAULT
|
|
|
|
0
|
|
|
|
# %PROTOCOLS%
|
|
|
|
# EXAMPLE
|
|
|
|
~~~c
|
|
int main(void)
|
|
{
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
|
|
|
|
/* January 1, 2020 is 1577833200 */
|
|
curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);
|
|
|
|
/* If-Modified-Since the above time stamp */
|
|
curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
|
|
|
|
/* Perform the request */
|
|
curl_easy_perform(curl);
|
|
}
|
|
}
|
|
~~~
|
|
|
|
# HISTORY
|
|
|
|
**CURL_TIMECOND_*** enums became `long` types in 8.13.0, prior to this version
|
|
a `long` cast was necessary when passed to curl_easy_setopt(3).
|
|
|
|
# %AVAILABILITY%
|
|
|
|
# RETURN VALUE
|
|
|
|
curl_easy_setopt(3) returns a CURLcode indicating success or error.
|
|
|
|
CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
|
|
libcurl-errors(3).
|