Signed-off-by: Hangbin Liu <liuhang...@gmail.com>
---
testcases/lib/test.sh | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/testcases/lib/test.sh b/testcases/lib/test.sh
index 1c9b126..60a9984 100644
--- a/testcases/lib/test.sh
+++ b/testcases/lib/test.sh
@@ -134,6 +134,26 @@ tst_check_cmds()
done
}
+# tst_retry "command" [times]
+# try run command for specified times, default is 3.
+# Function returns 0 if succeed in RETRIES times or the last retcode the cmd
+# returned
+tst_retry()
+{
+ local cmd="$1"
+ local RETRIES=${2:-"3"}
+ while [ $RETRIES -gt 0 ]; do
+ eval "$cmd"
+ ret=$?
+ if [ $ret -eq 0 ]; then
+ break
+ fi
+ let RETRIES=$((RETRIES-1))
+ sleep 1
+ done
+ return $ret
+}
+
# tst_timeout "command arg1 arg2 ..." timeout
# Runs command for specified timeout (in seconds).
# Function returns retcode of command or 1 if arguments are invalid.
--
1.9.3
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