Re: Abort if instance already running?

I used locks in these case

#Open a file
open(SINGLECHECK,">.server1.pid") or $file->log("$0:Cannot open the lo
+ck file $!\n");
#Lock the file in exclusive mode and non-blocking mode so that no two 
+same demon will run.
flock(SINGLECHECK, LOCK_EX|LOCK_NB) or ($file->log("$0:server is Alrea
+dy running\n") and exit(1));
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Re^2: Abort if instance already running? by JavaFan (Canon) on Jan 06, 2009 at 11:20 UTC
I'm a bit baffled by the last line. It suggests that either the `log` method always return a true value, or that if the logging somehow fails, the program doesn't exit.	[reply]