FreeBSD Manual Pages
libcurl-share(3) Library Functions Manual libcurl-share(3) NAME libcurl-share - how to use the share interface DESCRIPTION This is an overview on how to use the libcurl share interface in your C programs. There are specific man pages for each function mentioned in here. All functions in the share interface are prefixed with curl_share. OBJECTIVES The share interface was added to enable sharing of data between curl han- dles. ONE SET OF DATA - MANY TRANSFERS You can have multiple easy handles share data between them. Have them up- date and use the same cookie database, DNS cache, TLS session cache and/or connection cache. This way, each single transfer takes advantage from data updates made by the other transfer(s). SHARE OBJECT You create a shared object with curl_share_init(3). It returns a handle for a newly created one. You tell the shared object what data you want it to share by using curl_share_setopt(3). Since you can use this share from multiple threads, and libcurl has no in- ternal thread synchronization, you must provide mutex callbacks if you are using this multi-threaded. You set lock and unlock functions with curl_share_setopt(3) too. Then, you make an easy handle to use this share, you set the CUR- LOPT_SHARE(3) option with curl_easy_setopt(3), and pass in share handle. You can make any number of easy handles share the same share handle. To make an easy handle stop using that particular share, you set CUR- LOPT_SHARE(3) to NULL for that easy handle. To make a handle stop sharing a particular data, you can CURLSHOPT_UNSHARE(3) it. When you are done using the share, make sure that no easy handle is still using it, and call curl_share_cleanup(3) on the handle. SEE ALSO curl_share_cleanup(3), curl_share_init(3), curl_share_setopt(3), libcurl- easy(3), libcurl-errors(3), libcurl-multi(3) libcurl 2026-06-11 libcurl-share(3)
NAME | DESCRIPTION | OBJECTIVES | ONE SET OF DATA - MANY TRANSFERS | SHARE OBJECT | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=libcurl-share&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>