NAME

       curl_multi_add_handle - add an easy handle to a multi session

SYNOPSIS

       #include <curl/curl.h>

       CURLMcode curl_multi_add_handle(CURLM *multi_handle, CURL *easy_handle);

DESCRIPTION

       Adds  a  standard  easy handle to the multi stack. This function call will make this multi_handle control
       the specified easy_handle.

       While an easy handle is added to a multi stack, you cannot and you must not use  curl_easy_perform(3)  on
       that handle. After having removed the easy handle from the multi stack again, it is perfectly fine to use
       it with the easy interface again.

       If   the   easy   handle   is   not   set  to  use  a  shared  (CURLOPT_SHARE(3))  or  global  DNS  cache
       (CURLOPT_DNS_USE_GLOBAL_CACHE(3)), it will be made to use the DNS cache that is shared between  all  easy
       handles within the multi handle when curl_multi_add_handle(3) is called.

       When  an  easy  interface  is added to a multi handle, it will use a shared connection cache owned by the
       multi handle. Removing and adding new easy handles will not affect the pool of connections or the ability
       to do connection re-use.

       If you have CURLMOPT_TIMERFUNCTION(3) set in the multi handle (and you really should if you  are  working
       event-based  with curl_multi_socket_action(3) and friends), that callback will be called from within this
       function to ask for an updated timer so that your main event loop will get the activity on this handle to
       get started.

       The  easy  handle  will  remain  added  to  the  multi  handle   until   you   remove   it   again   with
       curl_multi_remove_handle(3) - even when a transfer with that specific easy handle is completed.

       You  should  remove  the  easy handle from the multi stack before you terminate first the easy handle and
       then the multi handle:

       1 - curl_multi_remove_handle(3)

       2 - curl_easy_cleanup(3)

       3 - curl_multi_cleanup(3)

EXAMPLE

         /* init a multi stack */
         multi_handle = curl_multi_init();

         /* add individual transfers */
         curl_multi_add_handle(multi_handle, http_handle);
         curl_multi_add_handle(multi_handle, http_handle2);

AVAILABILITY

       ADded in 7.9.6

RETURN VALUE

       CURLMcode type, general libcurl multi interface error code.

SEE ALSO

       curl_multi_cleanup(3),curl_multi_init(3), curl_multi_setopt(3), curl_multi_socket_action(3)

libcurl 7.81.0                                  November 26, 2021                       curl_multi_add_handle(3)