[sheepdog] [PATCH] tests: ensure sheep starts up when using valgrind

[MORITA Kazutaka]

When using valgrind, there is a delay before sheep starts up.  This
checks a lock file to ensure that sheep is running.

Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
---
Yuan, does this fix the test 26 problem on your environment?

 tests/common.rc |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/common.rc b/tests/common.rc
index d6590f9..166d392 100644
--- a/tests/common.rc
+++ b/tests/common.rc
@@ -180,6 +180,14 @@ _valgrind_sheep()
 {
     mkdir $1 > /dev/null 2>&1
     sh -c "valgrind $SHEEP_PROG $@ -f -o > $1/sheep.log 2>&1 &"
+
+    # wait for sheep to start up
+    while true; do
+        ls $1/lock > /dev/null 2>&1
+        if [ $? == 0 ]; then
+            break
+        fi
+    done
 }
 
 _start_sheep()
-- 
1.7.9.5