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 (
12 struct nbd_handle *h
13 );
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16 Return true if this connection is connected to the NBD server, the
17 handshake has completed, and the connection is processing commands
18 (either writing out a request or reading a reply).
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20 Note the ready state (nbd_aio_is_ready(3)) is not included. In the
21 ready state commands may be in flight (the server is processing them),
22 but libnbd is not processing them.
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25 This call returns a boolean value.
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28 This function does not fail.
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30 The following parameters must not be NULL: "h". For more information
31 see "Non-NULL parameters" in libnbd(3).
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34 This function first appeared in libnbd 1.0.
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36 If you need to test if this function is available at compile time check
37 if the following macro is defined:
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39 #define LIBNBD_HAVE_NBD_AIO_IS_PROCESSING 1
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42 nbd_aio_is_ready(3), nbd_create(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 Red Hat
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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-1.16.5 2023-09-26 nbd_aio_is_processing(3)