Re: [PATCH 2/2] iotests/qsd-jobs: Use common.qemu for the QSD

[Vladimir Sementsov-Ogievskiy]

01.04.2021 16:28, Max Reitz wrote:
> Using common.qemu allows us to wait for specific replies, so we can for
> example wait for events.  This allows starting the active commit job and
> then wait for it to be ready before quitting the QSD, so we the output
> is always the same.
>
> (Strictly speaking, this is only necessary for the first test in
> qsd-jobs, but we might as well make the second one use common.qemu's
> infrastructure, too.)

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>   tests/qemu-iotests/tests/qsd-jobs     | 55 ++++++++++++++++++++-------
>   tests/qemu-iotests/tests/qsd-jobs.out | 10 ++++-
>   2 files changed, 49 insertions(+), 16 deletions(-)
>
> diff --git a/tests/qemu-iotests/tests/qsd-jobs 
> b/tests/qemu-iotests/tests/qsd-jobs
> index 972b6b3898..af7f886f15 100755
> --- a/tests/qemu-iotests/tests/qsd-jobs
> +++ b/tests/qemu-iotests/tests/qsd-jobs
> @@ -38,6 +38,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>   cd ..
>   . ./common.rc
>   . ./common.filter
> +. ./common.qemu
>   
>   _supported_fmt qcow2
>   _supported_proto generic
> @@ -52,32 +53,58 @@ echo "=== Job still present at shutdown ==="
>   echo
>   
>   # Just make sure that this doesn't crash
> -$QSD --chardev stdio,id=stdio --monitor chardev=stdio \
> +qsd=y _launch_qemu \

sounds a bit strange.. Like we are starting qemu.

>       --blockdev node-name=file0,driver=file,filename="$TEST_IMG" \
> -    --blockdev node-name=fmt0,driver=qcow2,file=file0 <<EOF | _filter_qmp
> -{"execute":"qmp_capabilities"}
> -{"execute": "block-commit", "arguments": {"device": "fmt0", "job-id": "job0"}}
> -{"execute": "quit"}
> -EOF
> +    --blockdev node-name=fmt0,driver=qcow2,file=file0
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute":"qmp_capabilities"}' \
> +    'return'
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute": "block-commit",
> +      "arguments": {"device": "fmt0", "job-id": "job0"}}' \
> +    'BLOCK_JOB_READY'
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute": "quit"}' \
> +    'return'
> +
> +wait=y _cleanup_qemu
>   
>   echo
>   echo "=== Streaming can't get permission on base node ==="
>   echo
>   
>   # Just make sure that this doesn't crash
> -$QSD --chardev stdio,id=stdio --monitor chardev=stdio \
> +qsd=y _launch_qemu \
>       --blockdev node-name=file_base,driver=file,filename="$TEST_IMG.base" \
>       --blockdev node-name=fmt_base,driver=qcow2,file=file_base \
>       --blockdev node-name=file_overlay,driver=file,filename="$TEST_IMG" \
>       --blockdev 
> node-name=fmt_overlay,driver=qcow2,file=file_overlay,backing=fmt_base \
>       --nbd-server addr.type=unix,addr.path="$SOCK_DIR/nbd.sock" \
> -    --export type=nbd,id=export1,node-name=fmt_base,writable=on,name=export1 \
> -    <<EOF | _filter_qmp
> -{"execute": "qmp_capabilities"}
> -{"execute": "block-stream",
> -  "arguments": {"device": "fmt_overlay", "job-id": "job0"}}
> -{"execute": "quit"}
> -EOF
> +    --export type=nbd,id=export1,node-name=fmt_base,writable=on,name=export1
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute": "qmp_capabilities"}' \
> +    'return'
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute": "block-stream",
> +      "arguments": {"device": "fmt_overlay", "job-id": "job0"}}' \
> +    'error'
> +
> +_send_qemu_cmd \
> +    $QEMU_HANDLE \
> +    '{"execute": "quit"}' \
> +    'return'
> +
> +wait=y _cleanup_qemu
>   
>   # success, all done
>   echo "*** done"
> diff --git a/tests/qemu-iotests/tests/qsd-jobs.out 
> b/tests/qemu-iotests/tests/qsd-jobs.out
> index 05e1165e80..5a14668939 100644
> --- a/tests/qemu-iotests/tests/qsd-jobs.out
> +++ b/tests/qemu-iotests/tests/qsd-jobs.out
> @@ -4,13 +4,16 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 
> backing_file=TEST_DIR/
>   
>   === Job still present at shutdown ===
>   
> -QMP_VERSION
> +{"execute":"qmp_capabilities"}
>   {"return": {}}
> +{"execute": "block-commit",
> +      "arguments": {"device": "fmt0", "job-id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "created", "id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "running", "id": "job0"}}
>   {"return": {}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "ready", "id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "job0", 
> "len": 0, "offset": 0, "speed": 0, "type": "commit"}}
> +{"execute": "quit"}
>   {"return": {}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "standby", "id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "ready", "id": "job0"}}
> @@ -22,11 +25,14 @@ QMP_VERSION
>   
>   === Streaming can't get permission on base node ===
>   
> -QMP_VERSION
> +{"execute": "qmp_capabilities"}
>   {"return": {}}
> +{"execute": "block-stream",
> +      "arguments": {"device": "fmt_overlay", "job-id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "created", "id": "job0"}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": 
> {"status": "null", "id": "job0"}}
>   {"error": {"class": "GenericError", "desc": "Conflicts with use by a block device 
> as 'root', which uses 'write' on fmt_base"}}
> +{"execute": "quit"}
>   {"return": {}}
>   {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", 
> "data": {"id": "export1"}}
>   *** done


--
Best regards,
Vladimir