1nbd_aio_is_processing(3) LIBNBD nbd_aio_is_processing(3)
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6 nbd_aio_is_processing - check if the connection is processing a command
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9 #include <libnbd.h>
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11 int nbd_aio_is_processing (struct nbd_handle *h);
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14 Return true if this connection is connected to the NBD server, the
15 handshake has completed, and the connection is processing commands
16 (either writing out a request or reading a reply).
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18 Note the ready state (nbd_aio_is_ready(3)) is not included. In the
19 ready state commands may be in flight (the server is processing them),
20 but libnbd is not processing them.
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23 This call returns a boolean value.
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26 This function does not fail.
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28 The following parameters must not be NULL: "h". For more information
29 see "Non-NULL parameters" in libnbd(3).
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32 This function first appeared in libnbd 1.0.
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34 If you need to test if this function is available at compile time check
35 if the following macro is defined:
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37 #define LIBNBD_HAVE_NBD_AIO_IS_PROCESSING 1
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40 nbd_aio_is_ready(3), nbd_create(3), libnbd(3).
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43 Eric Blake
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45 Richard W.M. Jones
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48 Copyright (C) 2019-2021 Red Hat Inc.
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51 This library is free software; you can redistribute it and/or modify it
52 under the terms of the GNU Lesser General Public License as published
53 by the Free Software Foundation; either version 2 of the License, or
54 (at your option) any later version.
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56 This library is distributed in the hope that it will be useful, but
57 WITHOUT ANY WARRANTY; without even the implied warranty of
58 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
59 Lesser General Public License for more details.
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61 You should have received a copy of the GNU Lesser General Public
62 License along with this library; if not, write to the Free Software
63 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
64 02110-1301 USA
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68libnbd-1.14.2 2023-01-03 nbd_aio_is_processing(3)