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Last change
on this file since 3532 was 3529, checked in by bird, 3 years ago |
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Imported grep 3.7 from grep-3.7.tar.gz (sha256: c22b0cf2d4f6bbe599c902387e8058990e1eee99aef333a203829e5fd3dbb342), applying minimal auto-props.
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-
Property svn:executable
set to
*
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File size:
1011 bytes
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| 1 | #!/bin/sh
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| 2 | # Check that grep --binary-file=without-match quickly skips files with holes.
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| 3 |
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| 4 | . "${srcdir=.}/init.sh"; path_prepend_ ../src
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| 5 |
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| 6 | expensive_
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| 7 |
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| 8 | # Skip this test if there is no usable SEEK_HOLE support,
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| 9 | # as is the case with linux-3.5.0 on ext4 and tmpfs file systems.
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| 10 | $PERL -e '$f=*STDERR; sysseek($f,2**22,0); syswrite($f,"a");' \
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| 11 | -e 'exit ("0 but true" ne sysseek($f,0,4))' 2> seek-hole-test \
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| 12 | || skip_ "this system/FS lacks SEEK_HOLE support"
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| 13 |
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| 14 | # Try to make this test not THAT expensive, on typical hosts.
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| 15 | virtual_memory_KiB=10240
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| 16 | if echo x | (ulimit -v $virtual_memory_KiB && grep x) >/dev/null 2>&1; then
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| 17 | ulimit -v $virtual_memory_KiB
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| 18 | fi
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| 19 |
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| 20 | # Create a file that starts with at least a buffer's worth of text,
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| 21 | # but has a big hole later.
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| 22 | (${AWK-awk} 'BEGIN{ for (i=0;i<1000;i++) printf "%080d\n", 0 }' < /dev/null
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| 23 | echo x | dd bs=1024k seek=8000000
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| 24 | ) >8T-or-so || skip_ 'cannot create big sparse file'
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| 25 |
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| 26 | grep --binary-file=without-match x 8T-or-so >/dev/null
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| 27 | test $? -eq 1 || fail=1
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| 28 |
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| 29 | Exit $fail
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