nbd_aio_opt_abort - end negotiation and close the connection
#include <libnbd.h>
int nbd_aio_opt_abort (
struct nbd_handle *h
);
Request that the server finish negotiation, gracefully if possible, then close the connection. This can only be used if nbd_set_opt_mode(3) enabled option mode.
To determine when the request completes, wait for nbd_aio_is_connecting(3) to return false.
If the call is successful the function returns 0
.
On error -1
is returned.
Refer to "ERROR HANDLING" in libnbd(3) for how to get further details of the error.
The following parameters must not be NULL: h
. For more information see "Non-NULL parameters" in libnbd(3).
nbd_aio_opt_abort can be called when the handle is in the following state:
┌─────────────────────────────────────┬─────────────────────────┐
│ Handle created, before connecting │ ❌ error │
│ Connecting │ ❌ error │
│ Connecting & handshaking (opt_mode) │ ✅ allowed │
│ Connected to the server │ ❌ error │
│ Connection shut down │ ❌ error │
│ Handle dead │ ❌ error │
└─────────────────────────────────────┴─────────────────────────┘
This function first appeared in libnbd 1.4.
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
nbd_aio_is_connecting(3), nbd_create(3), nbd_opt_abort(3), nbd_set_opt_mode(3), libnbd(3).
Eric Blake
Richard W.M. Jones
Copyright Red Hat
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.
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