CURLOPT_MAXAGE_CONN - max idle time allowed for reusing a connection
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXAGE_CONN, long maxage);
CURLOPT_MAXAGE_CONN(3) curl_easy_setopt options CURLOPT_MAXAGE_CONN(3) NAME CURLOPT_MAXAGE_CONN - max idle time allowed for reusing a connection SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXAGE_CONN, long maxage); DESCRIPTION Pass a long as parameter containing maxage - the maximum time in sec- onds that you allow an existing connection to have been idle to be con- sidered for reuse for this request. The "connection cache" that holds previously used connections. When a new request is to be done, it will consider any connection that matches for reuse. The CURLOPT_MAXAGE_CONN(3) limit prevents libcurl from try- ing too old connections for reuse, since old connections have a high risk of not working and thus trying them is a performance loss and sometimes service loss due to the difficulties to figure out the situa- tion. If a connection is found in the cache that is older than this set maxage, it will instead be closed. DEFAULT Default maxage is 118 seconds. PROTOCOLS All EXAMPLE CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* only allow 30 seconds idle time */ curl_easy_setopt(curl, CURLOPT_MAXAGE_CONN, 30L); curl_easy_perform(curl); } AVAILABILITY Added in 7.65.0 RETURN VALUE Returns CURLE_OK. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_TIMEOUT(3), CURLOPT_FORBID_REUSE(3), CURLOPT_FRESH_CONNECT(3), CURLOPT_MAXLIFETIME_CONN(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 26, 2021 CURLOPT_MAXAGE_CONN(3)