c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Title: curl_multi_init Section: 3 Source: libcurl See-also:

curl_easy_init (3)
curl_global_init (3)
curl_multi_add_handle (3)
curl_multi_cleanup (3)
curl_multi_get_handles (3) Protocol:
All Added-in: 7.9.6 ---

NAME

curl_multi_init - create a multi handle

SYNOPSIS

#include <curl/curl.h>

CURLM *curl_multi_init();

DESCRIPTION

This function returns a pointer to a CURLM handle to be used as input to all the other multi-functions, sometimes referred to as a multi handle in some places in the documentation. This init call MUST have a corresponding call to curl_multi_cleanup(3) when the operation is complete.

By default, several caches are stored in and held by the multi handle: DNS cache, connection pool, TLS session ID cache and the TLS CA cert cache. All transfers using the same multi handle share these caches.

%PROTOCOLS%

EXAMPLE

int main(void)
{
  /* init a multi stack */
  CURLM *multi = curl_multi_init();
  CURL *curl = curl_easy_init();
  CURL *curl2 = curl_easy_init();

  /* add individual transfers */
  curl_multi_add_handle(multi, curl);
  curl_multi_add_handle(multi, curl2);
}

%AVAILABILITY%

RETURN VALUE

If this function returns NULL, something went wrong and you cannot use the other curl functions.

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