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libcurl-share(3)            libcurl share interface           libcurl-share(3)

       libcurl-share - how to use the share interface

       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.

       The share interface was added to enable sharing of data between curl "handles".

       You can have multiple easy handles share data between them. Have them update and use the same  cookie  database
       or  DNS  cache!  This  way, each single transfer will take advantage from data updates made by the other trans-

       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). Currently you can only
       share DNS and/or COOKIE data.

       Since  you  can  use  this share from multiple threads, and libcurl has no internal thread synchronization, you
       must provide mutex callbacks if you're 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 CURLOPT_SHARE 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 CURLOPT_SHARE to NULL for that easy handle. To
       make a handle stop sharing a particular data, you can CURLSHOPT_UNSHARE it.

       When   you're   done   using  the  share,  make  sure  that  no  easy  handle  is  still  using  it,  and  call
       curl_share_cleanup(3) on the handle.

       curl_share_init(3), curl_share_setopt(3), curl_share_cleanup(3)

libcurl 7.10.7                    8 Aug 2003                  libcurl-share(3)