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authorDaniel P. Berrangé <berrange@redhat.com>2018-11-16 15:53:23 +0000
committerEric Blake <eblake@redhat.com>2018-11-19 11:16:46 -0600
commitb39b58d5d0da3e7057d7d636641018b0fc25139b (patch)
treebfaa775e95e06fc6f09f51b5fce6b06b267fe8a1 /tests
parente6d5d6fdd43484f60f678e66c21f0d1286749977 (diff)
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tests: check if qemu-nbd is still alive before waiting
If the qemu-nbd UNIX socket has not shown up, the tests will sleep a bit and then check again repeatedly for up to 30 seconds. This is pointless if the qemu-nbd process has quit due to an error, so check whether the pid is still alive before waiting and retrying. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20181116155325.22428-5-berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/qemu-iotests/common.nbd10
1 files changed, 9 insertions, 1 deletions
diff --git a/tests/qemu-iotests/common.nbd b/tests/qemu-iotests/common.nbd
index 27357f3..9f841ab 100644
--- a/tests/qemu-iotests/common.nbd
+++ b/tests/qemu-iotests/common.nbd
@@ -37,11 +37,19 @@ function nbd_server_stop()
function nbd_server_wait_for_unix_socket()
{
+ pid=$1
+
for ((i = 0; i < 300; i++))
do
if [ -r "$nbd_unix_socket" ]; then
return
fi
+ kill -s 0 $pid 2>/dev/null
+ if test $? != 0
+ then
+ echo "qemu-nbd unexpectedly quit"
+ exit 1
+ fi
sleep 0.1
done
echo "Failed in check of unix socket created by qemu-nbd"
@@ -52,5 +60,5 @@ function nbd_server_start_unix_socket()
{
nbd_server_stop
$QEMU_NBD -v -t -k "$nbd_unix_socket" "$@" &
- nbd_server_wait_for_unix_socket
+ nbd_server_wait_for_unix_socket $!
}