1curl_multi_add_handle(3)        libcurl Manual        curl_multi_add_handle(3)
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NAME

6       curl_multi_add_handle - add an easy handle to a multi session
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLMcode  curl_multi_add_handle(CURLM  *multi_handle,  CURL *easy_han‐
12       dle);
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DESCRIPTION

15       Adds a standard easy handle to the multi stack. This function call will
16       make this multi_handle control the specified easy_handle.
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18       While an easy handle is added to a multi stack, you cannot and you must
19       not use curl_easy_perform(3) on that handle. After having  removed  the
20       easy  handle from the multi stack again, it is perfectly fine to use it
21       with the easy interface again.
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23       If the easy handle is not set to use  a  shared  (CURLOPT_SHARE(3))  or
24       global  DNS cache (CURLOPT_DNS_USE_GLOBAL_CACHE(3)), it will be made to
25       use the DNS cache that is shared between all easy  handles  within  the
26       multi handle when curl_multi_add_handle(3) is called.
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28       When an easy interface is added to a multi handle, it will use a shared
29       connection cache owned by the multi handle.  Removing  and  adding  new
30       easy  handles will not affect the pool of connections or the ability to
31       do connection re-use.
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33       If you have CURLMOPT_TIMERFUNCTION(3) set in the multi handle (and  you
34       really  should if you're working event-based with curl_multi_socket_ac‐
35       tion(3) and friends), that callback will be  called  from  within  this
36       function  to ask for an updated timer so that your main event loop will
37       get the activity on this handle to get started.
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39       The easy handle will remain added to the multi handle until you  remove
40       it  again  with curl_multi_remove_handle(3) - even when a transfer with
41       that specific easy handle is completed.
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43       You should remove the easy handle from the multi stack before you  ter‐
44       minate first the easy handle and then the multi handle:
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46       1 - curl_multi_remove_handle(3)
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48       2 - curl_easy_cleanup(3)
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50       3 - curl_multi_cleanup(3)
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RETURN VALUE

53       CURLMcode type, general libcurl multi interface error code.
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SEE ALSO

56       curl_multi_cleanup(3),curl_multi_init(3),         curl_multi_setopt(3),
57       curl_multi_socket_action(3)
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61libcurl 7.76.1                 November 05, 2020      curl_multi_add_handle(3)
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