1nbd_aio_is_negotiating(3) LIBNBD nbd_aio_is_negotiating(3)
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6 nbd_aio_is_negotiating - check if connection is ready to send handshake
7 option
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10 #include <libnbd.h>
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12 int nbd_aio_is_negotiating (struct nbd_handle *h);
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15 Return true if this connection is ready to start another option
16 negotiation command while handshaking with the server. An option
17 command will move back to the connecting state (see
18 nbd_aio_is_connecting(3)). Note that this state cannot be reached
19 unless requested by nbd_set_opt_mode(3), and even then it only works
20 with newstyle servers; an oldstyle server will skip straight to
21 nbd_aio_is_ready(3).
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24 This call returns a boolean value.
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27 This function does not fail.
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29 The following parameters must not be NULL: "h". For more information
30 see "Non-NULL parameters" in libnbd(3).
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33 This function first appeared in libnbd 1.4.
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35 If you need to test if this function is available at compile time check
36 if the following macro is defined:
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38 #define LIBNBD_HAVE_NBD_AIO_IS_NEGOTIATING 1
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41 nbd_aio_is_connecting(3), nbd_aio_is_ready(3), nbd_create(3),
42 nbd_set_opt_mode(3), libnbd(3).
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45 Eric Blake
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47 Richard W.M. Jones
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50 Copyright (C) 2019-2021 Red Hat Inc.
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53 This library is free software; you can redistribute it and/or modify it
54 under the terms of the GNU Lesser General Public License as published
55 by the Free Software Foundation; either version 2 of the License, or
56 (at your option) any later version.
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58 This library is distributed in the hope that it will be useful, but
59 WITHOUT ANY WARRANTY; without even the implied warranty of
60 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
61 Lesser General Public License for more details.
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63 You should have received a copy of the GNU Lesser General Public
64 License along with this library; if not, write to the Free Software
65 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
66 02110-1301 USA
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70libnbd-1.14.2 2023-01-03 nbd_aio_is_negotiating(3)