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Rob Norris
9530eb64e0
Sponsored-by: https://despairlabs.com/sponsor/ Signed-off-by: Rob Norris <robn@despairlabs.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
75 lines
2.1 KiB
Bash
Executable File
75 lines
2.1 KiB
Bash
Executable File
#!/bin/ksh -p
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# SPDX-License-Identifier: CDDL-1.0
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or https://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2022 by Triad National Security, LCC
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#
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. $STF_SUITE/include/libtest.shlib
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#
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# DESCRIPTION:
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# Tests file offset using O_APPEND.
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#
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# STRATEGY:
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# 1. Open file using O_APPEND
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# 2. Write to the file using random number of blocks (1, 2, or 3)
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# 3. Verify that the file offset is correct using lseek after the write
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# 4. Repeat steps 2 and 3, 5 times
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# 5. Close the file.
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# 6. Repeat steps 1-5 but also open file with O_DIRECT
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#
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verify_runnable "global"
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log_assert "Ensure file offset is updated correctly when opened with O_APPEND"
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mntpt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
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filename=$mntpt/append_file.txt
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bs=131072
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ITERATIONS=5
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expected=0
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# First test using buffered writes with O_APPEND
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for i in $(seq $ITERATIONS); do
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num_blocks=$(random_int_between 1 3)
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expected=$((expected + ( bs * num_blocks)))
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log_must file_append -f $filename -e $expected -b $bs -n $num_blocks
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curr_offset=$expected
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done
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log_must rm -f $filename
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expected=0
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# Repeat same test using O_DIRECT writes with O_APPEND
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for i in $(seq $ITERATIONS); do
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num_blocks=$(random_int_between 1 3)
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expected=$((expected + ( bs * num_blocks)))
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log_must file_append -f $filename -e $expected -b $bs -n $num_blocks -d
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done
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log_must rm -f $filename
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log_pass "File offset updated correctly when opening a file with O_APPEND."
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