plucky (3) CURLOPT_DNS_USE_GLOBAL_CACHE.3.gz

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 survives between easy
       handle creations and deletions. This is not thread-safe and this uses a global variable.

       See CURLOPT_SHARE(3) and curl_share_init(3) for the correct way to share DNS cache between transfers.

DEFAULT

       0

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         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);
         }
       }

DEPRECATED

       Deprecated since 7.11.1. Functionality removed in 7.62.0.

AVAILABILITY

       Added in curl 7.9.3

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).

SEE ALSO

       CURLOPT_DNS_CACHE_TIMEOUT(3), CURLOPT_SHARE(3)