CURLOPT_DNS_USE_GLOBAL_CACHE(3)

1CURLOPT_DNS_USE_GLOBAL_CACHEc(u3r)l_easy_setopt optiCoUnRsLOPT_DNS_USE_GLOBAL_CACHE(3)
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NAME

6       CURLOPT_DNS_USE_GLOBAL_CACHE - enable/disable global DNS cache
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_USE_GLOBAL_CACHE,
12                                 long enable);
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DESCRIPTION

15       Has no function since 7.62.0. Do note use!
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17       Pass  a  long.  If the enable value is 1, it tells curl to use a global
18       DNS cache that will survive between easy  handle  creations  and  dele‐
19       tions. This is not thread-safe and this will use a global variable.
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21       WARNING: this option is considered obsolete. Stop using it. Switch over
22       to  using  the  share  interface  instead!  See  CURLOPT_SHARE(3)   and
23       curl_share_init(3).
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DEFAULT

26       0
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PROTOCOLS

29       All
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EXAMPLE

32       CURL *curl = curl_easy_init();
33       if(curl) {
34         CURLcode ret;
35         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
36         /* switch off the use of a global, thread unsafe, cache */
37         curl_easy_setopt(curl, CURLOPT_DNS_USE_GLOBAL_CACHE, 0L);
38         ret = curl_easy_perform(curl);
39         curl_easy_cleanup(curl);
40       }
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AVAILABILITY

43       Deprecated since 7.62.0. Has no function.
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RETURN VALUE

46       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
47       if not.
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