NAME

nbdkit-example4-plugin - example nbdkit plugin written in Perl

SYNOPSIS

 nbdkit example4 size=<N>

EXAMPLE

 nbdkit example4 size=1048576
 guestfish -a nbd://localhost

DESCRIPTION

"nbdkit-example4-plugin" is an example nbdkit(1) plugin written in Perl.

The "size=N" parameter is required. It specifies the disk size in bytes. A single disk image, initially all zeroes, is created and can be read and written by all clients. When nbdkit shuts down the disk image is thrown away.

Mainly this is useful for testing and as an example of nbdkit plugins written in Perl. You should also read nbdkit-plugin(3) and nbdkit-perl-plugin(3). Note that nbdkit plugins may be written in C or other scripting languages.

VERSION

"nbdkit-example4-plugin" first appeared in nbdkit 1.2.

SEE ALSO

https://github.com/libguestfs/nbdkit/blob/master/plugins/example4/example4.pl, nbdkit(1), nbdkit-plugin(3), nbdkit-perl-plugin(3).

AUTHORS

Richard W.M. Jones

COPYRIGHT

Copyright (C) 2017 Red Hat Inc.

LICENSE

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.