I create 2 parallel job (jerry,jerry1):

for jerry1 (parent):¶

sub run() {
check_screen "jerry_wait11", 300;
mutex_create('xxx');
sleep 20;
}

1;¶

for jerry (child):¶

#!/usr/bin/perl -w
use strict;
use base "basetest";
use testapi;
use lockapi;

sub run() {
mutex_unlock('xxx');
sleep 20;
}

1;¶

two job in same test group.

I run this jobs , it was started in parallel. but test mutex does work ,

mutex_unlock won't in block.

and I wonder how does block looks like : "mutex lock 'xxx' unavailable, sleeping 5s" ?

if like this. I think it is from mutex_lock function in lockapi . (which means mutex_unlock won't block right?)