5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are
9 # * Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
12 # * Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # * Neither the name of Red Hat nor the names of its contributors may be
17 # used to endorse or promote products derived from this software without
18 # specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
24 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
27 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 # On Windows, calling ftruncate in the cow filter fails with:
41 # nbdkit: memory[1]: error: ftruncate: File too large
43 echo "$0: the cow filter needs to be fixed to work on Windows"
47 sock
=$
(mktemp
-u /tmp
/nbdkit-test-sock.XXXXXX
)
48 files
="$sock cow-unaligned.pid"
50 cleanup_fn
rm -f $files
52 # Run nbdkit with the cow filter and a size which is not a multiple of
53 # the cow filter block size (4K).
54 start_nbdkit
-P cow-unaligned.pid
-U $sock --filter=cow memory
130000
56 nbdsh
--connect "nbd+unix://?socket=$sock" \
58 # Write some pattern data to the overlay and check it reads back OK.
59 buf = b"abcdefghijklm" * 10000
61 buf2 = h.pread(130000, 0)