This simple locking scheme is not based on any file locking system calls such as
lockf() but rather relies on basic file system primitives and properties, such as the atomicity of the
write() system call. It is not meant to be exempt from all race conditions, especially over NFS.
The Perl module is available as 32-bit and 64-bit:
- For the 32-bit module you need to use
- For the 64-bit module you need to use