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- .TH CURLOPT_DNS_USE_GLOBAL_CACHE 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
- .SH NAME
- CURLOPT_DNS_USE_GLOBAL_CACHE \- global DNS cache
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_USE_GLOBAL_CACHE,
- long enable);
- .fi
- .SH DESCRIPTION
- Has no function since 7.62.0. Do not use!
- Pass a long. If the \fIenable\fP 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.
- \fBWARNING:\fP this option is considered obsolete. Stop using it. Switch over
- to using the share interface instead! See \fICURLOPT_SHARE(3)\fP and
- \fIcurl_share_init(3)\fP.
- .SH DEFAULT
- 0
- .SH PROTOCOLS
- All
- .SH EXAMPLE
- .nf
- 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);
- }
- .fi
- .SH AVAILABILITY
- Deprecated since 7.62.0. Has no function.
- .SH RETURN VALUE
- Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
- .SH "SEE ALSO"
- .BR CURLOPT_SHARE "(3), " CURLOPT_DNS_CACHE_TIMEOUT "(3), "
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