Matt Carpenter wrote: | If I am reading the procmail docs correctly, then the following recipe | should create a lockfile called 'emscrypt.lock' which will prevent more than | one instance of the script from being run at a time | | :0:emscrypt | ^ Subject.*SQUEAMISH OSSIFRAGE | |/PATH/emscrypt | | I agree it would be better if emscrypt used its own locks on the timestamp | files. However, it is my understanding (someone please correct me if I am | wrong) that there is no simple way to provide file locking in Perl that is | portable across the various flavours of Unix (see the descriptions of the | fcntl and flock functions on p. 144-145 of the Camel book). So I haven't | tried to implement locking from within emscrypt yet. Of course, if these | functions are available on the majority of machines (anyone?) then I should | probably use them. procmail includes a program called lockfile, which is based on its thorough as hell lock mechanism tests. If you're calling from procmail, you might decide to require lockfile. Adam -- "It is seldom that liberty of any kind is lost all at once." -Hume