1nbdkit-example4-plugin(1) NBDKIT nbdkit-example4-plugin(1)
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6 nbdkit-example4-plugin - example nbdkit plugin written in Perl
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9 nbdkit example4 size=<N>
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12 nbdkit example4 size=1048576
13 guestfish -a nbd://localhost
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16 "nbdkit-example4-plugin" is an example nbdkit(1) plugin written in
17 Perl.
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19 The "size=N" parameter is required. It specifies the disk size in
20 bytes. A single disk image, initially all zeroes, is created and can
21 be read and written by all clients. When nbdkit shuts down the disk
22 image is thrown away.
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24 Mainly this is useful for testing and as an example of nbdkit plugins
25 written in Perl. You should also read nbdkit-plugin(3) and
26 nbdkit-perl-plugin(3). Note that nbdkit plugins may be written in C or
27 other scripting languages.
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30 "nbdkit-example4-plugin" first appeared in nbdkit 1.2.
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33 https://github.com/libguestfs/nbdkit/blob/master/plugins/example4/example4.pl,
34 nbdkit(1), nbdkit-plugin(3), nbdkit-perl-plugin(3).
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37 Richard W.M. Jones
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40 Copyright (C) 2017 Red Hat Inc.
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43 Redistribution and use in source and binary forms, with or without
44 modification, are permitted provided that the following conditions are
45 met:
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47 · Redistributions of source code must retain the above copyright
48 notice, this list of conditions and the following disclaimer.
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50 · Redistributions in binary form must reproduce the above copyright
51 notice, this list of conditions and the following disclaimer in the
52 documentation and/or other materials provided with the
53 distribution.
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55 · Neither the name of Red Hat nor the names of its contributors may
56 be used to endorse or promote products derived from this software
57 without specific prior written permission.
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59 THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY
60 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
62 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE
63 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
64 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
65 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
66 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
67 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
68 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
69 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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73nbdkit-1.16.1 2019-12-03 nbdkit-example4-plugin(1)