curl/docs/libcurl/curl_multi_get_handles.md
Daniel Stenberg 5a488251f7
curldown: fixups
- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
  where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
  guessing where to put it

- make the protocols section more verbose

Closes #14227
2024-07-19 17:03:25 +02:00

81 lines
1.7 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: curl_multi_get_handles
Section: 3
Source: libcurl
See-also:
- curl_multi_add_handle (3)
- curl_multi_cleanup (3)
- curl_multi_init (3)
- curl_multi_remove_handle (3)
Protocol:
- All
Added-in: 8.4.0
---
# NAME
curl_multi_get_handles - return all added easy handles
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURL **curl_multi_get_handles(CURLM *multi_handle);
~~~
# DESCRIPTION
Returns an array with pointers to all added easy handles. The end of the list
is marked with a NULL pointer.
Even if there is not a single easy handle added, this still returns an array
but with only a single NULL pointer entry.
The returned array contains all the handles that are present at the time of
the call. As soon as a handle has been removed from or a handle has been added
to the multi handle after the handle array was returned, the two data points
are out of sync.
The order of the easy handles within the array is not guaranteed.
The returned array must be freed with a call to curl_free(3) after use.
# %PROTOCOLS%
# EXAMPLE
~~~c
int main(void)
{
/* init a multi stack */
CURLM *multi = curl_multi_init();
CURL *curl = curl_easy_init();
if(curl) {
/* add the transfer */
curl_multi_add_handle(multi, curl);
/* extract all added handles */
CURL **list = curl_multi_get_handles(multi);
if(list) {
int i;
/* remove all added handles */
for(i = 0; list[i]; i++) {
curl_multi_remove_handle(multi, list[i]);
}
curl_free(list);
}
}
}
~~~
# %AVAILABILITY%
# RETURN VALUE
Returns NULL on failure. Otherwise it returns a pointer to an allocated array.