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_handle);
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DESCRIPTION

14       Adds a standard easy handle to the multi stack. This function call will
15       make this multi_handle control the specified easy_handle.
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17       While an easy handle is added to a multi stack, you cannot and you must
18       not  use  curl_easy_perform(3) on that handle. After having removed the
19       easy handle from the multi stack again, it is perfectly fine to use  it
20       with the easy interface again.
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22       If  the  easy  handle  is not set to use a shared (CURLOPT_SHARE(3)) or
23       global DNS cache (CURLOPT_DNS_USE_GLOBAL_CACHE(3)), it will be made  to
24       use  the  DNS  cache that is shared between all easy handles within the
25       multi handle when curl_multi_add_handle(3) is called.
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27       When an easy interface is added to a multi handle, it will use a shared
28       connection  cache  owned  by  the multi handle. Removing and adding new
29       easy handles will not affect the pool of connections or the ability  to
30       do connection re-use.
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32       If  you have CURLMOPT_TIMERFUNCTION(3) set in the multi handle (and you
33       really should if you are working event-based with curl_multi_socket_ac‐
34       tion(3)  and  friends),  that  callback will be called from within this
35       function to ask for an updated timer so that your main event loop  will
36       get the activity on this handle to get started.
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38       The  easy handle will remain added to the multi handle until you remove
39       it again with curl_multi_remove_handle(3) - even when a  transfer  with
40       that specific easy handle is completed.
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42       You  should remove the easy handle from the multi stack before you ter‐
43       minate first the easy handle and then the multi handle:
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45       1 - curl_multi_remove_handle(3)
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47       2 - curl_easy_cleanup(3)
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49       3 - curl_multi_cleanup(3)
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EXAMPLE

52         /* init a multi stack */
53         multi_handle = curl_multi_init();
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55         /* add individual transfers */
56         curl_multi_add_handle(multi_handle, http_handle);
57         curl_multi_add_handle(multi_handle, http_handle2);
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AVAILABILITY

60       ADded in 7.9.6
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RETURN VALUE

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

66       curl_multi_cleanup(3),curl_multi_init(3),         curl_multi_setopt(3),
67       curl_multi_socket_action(3)
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71libcurl 7.82.0                 November 26, 2021      curl_multi_add_handle(3)
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