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82 lines
3 KiB
HTML
82 lines
3 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html><head>
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<title>CURLOPT_TIMECONDITION man page</title>
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</head><body>
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<p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2>
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<p class="level0">CURLOPT_TIMECONDITION - select condition for a time request <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2>
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<p class="level0">#include <curl/curl.h>
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<p class="level0">CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMECONDITION, long cond); <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2>
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<p class="level0">Pass a long as parameter. This defines how the <a Class="emphasis" href="./CURLOPT_TIMEVALUE.html">CURLOPT_TIMEVALUE</a> time value is treated. You can set this parameter to <span Class="emphasis">CURL_TIMECOND_IFMODSINCE</span> or <span Class="emphasis">CURL_TIMECOND_IFUNMODSINCE</span>.
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<p class="level0">The last modification time of a file is not always known and in such instances this feature will have no effect even if the given time condition would not have been met. <span Class="emphasis">curl_easy_getinfo(3)</span> with the <span Class="emphasis">CURLINFO_CONDITION_UNMET</span> option can be used after a transfer to learn if a zero-byte successful "transfer" was due to this condition not matching. <a name="DEFAULT"></a><h2 class="nroffsh">DEFAULT</h2>
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<p class="level0">CURL_TIMECOND_NONE (0) <a name="PROTOCOLS"></a><h2 class="nroffsh">PROTOCOLS</h2>
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<p class="level0">HTTP, FTP, RTSP, and FILE <a name="EXAMPLE"></a><h2 class="nroffsh">EXAMPLE</h2>
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<p class="level0"><pre class="level0">
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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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/* January 1, 2020 is 1577833200 */
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curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);
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/* If-Modified-Since the above time stamp */
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curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
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/* Perform the request */
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curl_easy_perform(curl);
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}
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</pre>
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<p class="level0"><a name="AVAILABILITY"></a><h2 class="nroffsh">AVAILABILITY</h2>
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<p class="level0">Always <a name="RETURN"></a><h2 class="nroffsh">RETURN VALUE</h2>
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<p class="level0">Returns CURLE_OK <a name="SEE"></a><h2 class="nroffsh">SEE ALSO</h2>
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<p class="level0"><a Class="manpage" href="./CURLOPT_TIMEVALUE.html">CURLOPT_TIMEVALUE</a><p class="roffit">
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