CURLOPT_DNS_USE_GLOBAL_CACHcurl_easy_setopt optCURLOPT_DNS_USE_GLOBAL_CACHE(3)
NAME
CURLOPT_DNS_USE_GLOBAL_CACHE - global DNS cache
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_USE_GLOBAL_CACHE,
long enable);
DESCRIPTION
Has no function since 7.62.0. Do not use!
Pass a long. If the enable value is 1, it tells curl to use a global
DNS cache that will survive between easy handle creations and dele-
tions. This is not thread-safe and this will use a global variable.
WARNING: this option is considered obsolete. Stop using it. Switch over
to using the share interface instead! See CURLOPT_SHARE(3) and
curl_share_init(3).
DEFAULT
0
PROTOCOLS
All
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
CURLcode ret;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
/* switch off the use of a global, thread unsafe, cache */
curl_easy_setopt(curl, CURLOPT_DNS_USE_GLOBAL_CACHE, 0L);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
AVAILABILITY
Deprecated since 7.62.0. Has no function.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
CURLOPT_SHARE(3), CURLOPT_DNS_CACHE_TIMEOUT(3),
libcurl 7.81.0 November 26, 202CURLOPT_DNS_USE_GLOBAL_CACHE(3)
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