Make sure we return undef if semaphore creation fails
treeaf6cd8c76c16df1e40b95c6eebf4eea3025071ba
-rw-r--r-- 32 .gitignore
-rw-r--r-- 203 Changes
-rw-r--r-- 99 MANIFEST
-rw-r--r-- 751 Makefile.PL
-rw-r--r-- 1083 README
drwxr-xr-x - lib
drwxr-xr-x - t