On 12/19/2014 07:11 PM, Matus Marhefka wrote:
> Function tst_timeout() added into LTP test interface:
>
> tst_timeout "command arg1 arg2 ..." timeout
>
> Function enables waiting for specified command for timeout
> seconds. Example usage:
>
> cmd_output=$(tst_timeout "ping -c 3 localhost" 5)
> if [ $? -ne 0 ]; then
> tst_brkm TBROK "timeout reached!"
> fi
>
> where $cmd_output contains stdout and stderr of ping command.
>
> Signed-off-by: Matus Marhefka <mmarh...@redhat.com>
Nice function.
Acked-by: Wanlong Gao <gaowanl...@cn.fujitsu.com>
> ---
> testcases/lib/test.sh | 43 +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/testcases/lib/test.sh b/testcases/lib/test.sh
> index eecbfba..ad78a87 100644
> --- a/testcases/lib/test.sh
> +++ b/testcases/lib/test.sh
> @@ -129,6 +129,49 @@ tst_check_cmds()
> done
> }
>
> +# tst_timeout "command arg1 arg2 ..." timeout
> +# Runs command for specified timeout (in seconds).
> +# Function returns retcode of command or 1 if arguments are invalid.
> +tst_timeout()
> +{
> + local command=$1
> + local timeout=$(echo $2 | grep -o "^[0-9]\+$")
> +
> + # command must be non-empty string with command to run
> + if [ -z "$command" ]; then
> + echo "first argument must be non-empty string"
> + return 1
> + fi
> +
> + # accept only numbers as timeout
> + if [ -z "$timeout" ]; then
> + echo "only numbers as second argument"
> + return 1
> + fi
> +
> + setsid sh -c "eval $command" 2>&1 &
> + local pid=$!
> + while [ $timeout -gt 0 ]; do
> + kill -s 0 $pid 2>/dev/null
> + if [ $? -ne 0 ]; then
> + break
> + fi
> + timeout=$((timeout - 1))
> + sleep 1
> + done
> +
> + local ret=0
> + if [ $timeout -le 0 ]; then
> + ret=128
> + kill -TERM -- -$pid
> + fi
> +
> + wait $pid
> + ret=$((ret | $?))
> +
> + return $ret
> +}
> +
> # Check that test name is set
> if [ -z "$TCID" ]; then
> tst_brkm TBROK "TCID is not defined"
>
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