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)