nbd_aio_opt_abort(3)

📦
version 1.25.8 · 18 versions
, in centos-stream 10

💅 nbd_aio_opt_abort — bestie's guide (from the libnbd manual) 🎀

okay so real talk, we're in the libnbd section 3 pages and this one is nbd_aio_opt_abort, and it's honestly giving "graceful exit, but make it async" ✨

🌸 NAME 🌸

nbd_aio_opt_abort — end negotiation and close the connection 🫶

✨ SYNOPSIS ✨

#include <libnbd.h>

int nbd_aio_opt_abort (
      struct nbd_handle *h
    );

💖 DESCRIPTION 💖

So basically you're sliding into the server's DMs like "hey queen, we're done here" — this requests that the server finish negotiation, gracefully if possible, then close the connection. Gracefully if possible, mind you, so it's a polite request, not a slam-the-door situation 💅

hard requirement tho: this can only be used if nbd_set_opt_mode(3) enabled option mode. No opt mode, no abort, no exceptions, periodt.

And to figure out when the request actually completes? You wait for nbd_aio_is_connecting(3) to return false. That's your signal, that's your vibe check, iykyk 👑

🦋 RETURN VALUE 🦋

If the call is successful the function returns 0. slay 💚

😭 ERRORS 😭

On error -1 is returned. not the vibe, but okay.

Refer to "ERROR HANDLING" in libnbd(3) for how to get further details of the error — that's where the lore lives.

The following parameters must not be NULL: h. Like, must not. For more information see "Non-NULL parameters" in libnbd(3).

👑 HANDLE STATE 👑

nbd_aio_opt_abort can be called when the handle is in the following state — think of it as a little mood ring for your handle 🍓:

  • Handle created, before connecting — ❌ error
  • Connecting — ❌ error
  • Connecting & handshaking (opt_mode) — ✅ allowed
  • Connected to the server — ❌ error
  • Connection shut down — ❌ error
  • Handle dead — ❌ error

so literally the only green light is "Connecting & handshaking (opt_mode)". one singular window. main character energy for real 🔥

🌈 VERSION 🌈

This function first appeared in libnbd 1.4. vintage but make it fresh 💜

If you need to test if this function is available at compile time check if the following macro is defined:

#define LIBNBD_HAVE_NBD_AIO_OPT_ABORT 1

💀 SEE ALSO 💀

go read them, they're all iconique ⭐

🧚 AUTHORS 🧚

Eric Blake

Richard W.M. Jones

(genuinely legends, no cap 🙈)

Copyright Red Hat

🌸 LICENSE 🌸

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

fr fr read the license, it's not optional, bestie 😌

okay that's the whole page!! this was libnbd-1.25.8, dated 2026-10-13, page nbd_aio_opt_abort(3) — mwah, go abort some negotiation gracefully 💅✨

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