1nbd_aio_connect_command(3) LIBNBD nbd_aio_connect_command(3)
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6 nbd_aio_connect_command - connect to the NBD server
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9 #include <libnbd.h>
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11 int nbd_aio_connect_command (struct nbd_handle *h,
12 char **argv);
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15 Run the command as a subprocess and begin connecting to it over
16 stdin/stdout. Parameters behave as documented in
17 nbd_connect_command(3).
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19 You can check if the connection is still connecting by calling
20 nbd_aio_is_connecting(3), or if it has connected to the server and
21 completed the NBD handshake by calling nbd_aio_is_ready(3), on the
22 connection.
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25 If the call is successful the function returns 0.
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28 On error "-1" is returned.
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30 Refer to "ERROR HANDLING" in libnbd(3) for how to get further details
31 of the error.
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33 The following parameters must not be NULL: "h", "argv". For more
34 information see "Non-NULL parameters" in libnbd(3).
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37 The handle must be newly created, otherwise this call will return an
38 error.
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41 This function first appeared in libnbd 1.0.
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43 If you need to test if this function is available at compile time check
44 if the following macro is defined:
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46 #define LIBNBD_HAVE_NBD_AIO_CONNECT_COMMAND 1
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49 nbd_aio_is_connecting(3), nbd_aio_is_ready(3), nbd_connect_command(3),
50 nbd_create(3), libnbd(3).
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53 Eric Blake
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55 Richard W.M. Jones
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58 Copyright (C) 2019-2021 Red Hat Inc.
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61 This library is free software; you can redistribute it and/or modify it
62 under the terms of the GNU Lesser General Public License as published
63 by the Free Software Foundation; either version 2 of the License, or
64 (at your option) any later version.
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66 This library is distributed in the hope that it will be useful, but
67 WITHOUT ANY WARRANTY; without even the implied warranty of
68 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
69 Lesser General Public License for more details.
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71 You should have received a copy of the GNU Lesser General Public
72 License along with this library; if not, write to the Free Software
73 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
74 02110-1301 USA
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78libnbd-1.14.2 2023-01-03 nbd_aio_connect_command(3)