table of contents
other versions
- buster 7.64.0-4+deb10u2
- buster-backports 7.74.0-1.2~bpo10+1
- testing 7.74.0-1.2
- unstable 7.74.0-1.3
CURLOPT_DNS_USE_GLOBAL_CACHE(3) | curl_easy_setopt options | CURLOPT_DNS_USE_GLOBAL_CACHE(3) |
NAME¶
CURLOPT_DNS_USE_GLOBAL_CACHE - enable/disable global DNS cacheSYNOPSIS¶
#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 deletions. 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¶
0PROTOCOLS¶
AllEXAMPLE¶
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),November 4, 2020 | libcurl 7.74.0 |