curl/docs/libcurl/curl_multi_cleanup.md
Daniel Stenberg eefcc1bda4
docs: introduce "curldown" for libcurl man page format
curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
  their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730
2024-01-23 00:29:02 +01:00

66 lines
1.4 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: curl_multi_cleanup
Section: 3
Source: libcurl
See-also:
- curl_easy_cleanup (3)
- curl_easy_init (3)
- curl_multi_get_handles (3)
- curl_multi_init (3)
---
# NAME
curl_multi_cleanup - close down a multi session
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLMcode curl_multi_cleanup(CURLM *multi_handle);
~~~
# DESCRIPTION
Cleans up and removes a whole multi stack. It does not free or touch any
individual easy handles in any way - they still need to be closed
individually, using the usual curl_easy_cleanup(3) way. The order of
cleaning up should be:
1 - curl_multi_remove_handle(3) before any easy handles are cleaned up
2 - curl_easy_cleanup(3) can now be called independently since the easy
handle is no longer connected to the multi handle
3 - curl_multi_cleanup(3) should be called when all easy handles are
removed
Passing in a NULL pointer in *multi_handle* makes this function return
CURLM_BAD_HANDLE immediately with no other action.
# EXAMPLE
~~~c
int main(void)
{
CURLM *multi = curl_multi_init();
/* when the multi transfer is done ... */
/* remove all easy handles, then: */
curl_multi_cleanup(multi);
}
~~~
# AVAILABILITY
Added in 7.9.6
# RETURN VALUE
CURLMcode type, general libcurl multi interface error code. On success,
CURLM_OK is returned.